TECHNICAL INFORMATIONPage
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1. MATERIALS USED FOR TOOLS PRODUCING
2. THREAD TYPE
3. TAPS
4. DIES
5.2. Gauges R, Rc/Rp
5.1. Gauges NPT
5. GAUGES FOR TAPER THREAD
6. TOOLHOLDER
7. INFORMATION TABLES
8. FORM OF TOOL SELECTION
3.1. Taps construction elements
4.1. Die construction elements
5.2.1. Standards
6.1. Quick-change adapters with safety clutch for taps
5.2.2. Design of gauges
6.2. ER collets mounting
5.2.3. Use of gauges and checking of threads
6.3. Toolholders balance
6.3. Toolholders balance
3.5. High performance machine taps HSSE
3.6. Troubleshooting guide for tapping
4.6. Marking and stamping of dies
3.3. Kinds of chamfers and flutes
4.3. Tolerances of thread being cutted
3.8. Tap connecting dimensions according to ISO and DIN
3.2. Dimension standards
4.2. Dimension standards
3.7. Marking and stamping of high performance machine taps
3.4. Taps classes and inner thread’s tolerance zone
4.4. Variants of execution and their usage
4.5. Technological recommendations for machine dies
1. MATERIALS USED FOR TOOLS PRODUCING
2. THREAD TYPE
Micrograin solid carbide
VHM High performance machine taps for difficult workable materials, drills, mills
DescriptionMarking
acc. to DINSymbol Destination
High-speed steel
High-speed steel
High-speed powder steel
1.3343S-6-5-2
1.3243S-6-5-2-5
HSS
HSSE(HSCo5)
HSSE-PM
General purpose machine dies,hand taps and general purpose machine taps
High performance machine taps,machine dies, INOX drills
High performance machine taps for difficult workable materials, forming taps
TECHNICAL INFORMATION
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M
MF
UNC
UNF
G
BSW
BSF
Pg
Tr
NPT
R
Rp
Rc
Metric thread ISO DIN-13
Metric fine thread ISO DIN-13 (symbol used only in catalogues for distinguish from metric coarse thread)
American unified coarse thread ANSI B-1.1
American unified fine thread ANSI B-1.1
Whitworth pipe thread DIN-ISO 228 (identical with BSP)
Whitworth internal cylindrical pipe threadPN-ISO 7/1 and DIN EN 10226-1 (identical with BSPP)
Whitworth internal tapered pipe threadPN-ISO 7/1, DIN EN 10226-2 (identical with BSPT)
Whitworth thread BS-84:1956(in the past - W)
Whitworth fine thread BS-84:2007
Steel conduit thread DIN-40430 (P)
Trapezoidal symetric thread DIN-103
American tapered pipe thread with dryseal material ANSI B-1.20.1
Whiworth external tapered pipe thread ISO-7/1 (identical with BSPT)
W Cylindrical Whitworth thread for gas cylinder valvesPN-60/M-69224 and DIN 477
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TECHNICAL INFORMATION
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THREAD TYPE
W
W80
Rd
Rw
FG
BSC
Ven
Vg
E
UNS
Whit. S
S
EG M
EG UNC
NPSM (NPS)
NPTF
UNEF
UN
Tapered Whitworth thread for gas cylinder valvesPN-82/M-69223 and DIN 477
Cylindrical Whitworth thread for caps for gas cylindersPN-60/M-69225 and DIN 477
Cylindrical round thread PN-84/M-02035 and DIN 405
Bicycle threadPN-65/S-46001
Bicycle thread DIN 79012
Bicycle thread BS 811
Valve threadPN-68/S-83200
Valve threadDIN 7756
Edison electrical thread PN-82/E-02500
American unified special threadANSI B-1.1
Special Whitworth threadBS 84
Trapezoidal non-symetric thread
Metric thread for thread inserts V-Coil
American unified thread for thread inserts V-Coil
American cylindrical pipe thread ANSI B 1.20.1
American tapered pipe thread without dryseal materialANSI B 1.20.4
American unified extra fine thread ANSI B-1.1
American unified thread ANSI B-1.1 (with preferential piches: 4, 6, 8, 12, 16, 20, 28, 32 of threads per inch)
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- total length- thread length- useful length- length of driving square- chamfer length- size of square- thread diameter- shank diameter- neck diameter- (chamfer) point diameter- web (core) diameter- width of land
- relief of chamfer- pitch of thread- angle of thread- rake angle- spiral point angle- angle of spiral flutes- chamfer angle- straight flute- spiral flute- spiral point- number of lands
3. TAPS
3.1. Tap construction elements (on example of DIN-371)
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Metric coarsethreads, BSW, UNC
Metric fine threads
BSF, UNF, UNEFPipe threads
G, Pg
Tapin set
Flutes
Nr 1 taper tap 8P
L5
L5 - length of chamfer in threads
L5 L5
- chamfer angle
k kk
ko5
8P
- - - -
o5 5P o7
Nr 2 second tap 4P o10
Nr 3 finishing tap 2P o20 2P o20 2P o20
Straight
3.2. Dimension standards
3.3. Kinds of chamfers and flutes
Chamfers of hand taps
Dimension standards assign proper taps outer dimensions (total length, thread length, shank diameter and size of square) of nominal threads dimensions.
ISO-529
ISO-2284
DIN-371
DIN-352
DIN-2181
DIN-5157
DIN-376
DIN-374
DIN-5156
Short hand taps for metric coarse threads Norm is also suitable for UNC and BSW threads
Short hand taps for metric fine threadsNorm is also suitable for UNF and BSF threads
Short hand taps and machine taps for pipe threads G, Rp
Symbols Description
Short hand and machine taps for metric coarse threads, metric fine threads, UNC, UNF, BSW, BSF as well as other kinds of threads not provided by the standard, excluding the pipe threads G, Rp, Rc
Short hand and machine taps for pipe threads G, Rp and Rc
Machine taps with reinforced shank for metric coarse and fine threads M3 ÷ M10 and for the threads UNC, UNF, BSW, BSF within the range of nominal diameters 1/8” ÷ 3/8”
Machine taps with reduced shank diameter for metric coarse threads and for the threads UNC and BSW
Machine taps with reduced shank diameter for metric fine threads and for the threads UNF i BSF
Machine taps with reduced shank diameter for the threads G, Rp and Rc
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g2
g2
Chamfer length presented in the quantity of the
thread coils
(6¸8)P o5
(3,5÷5,5)Po8
(2÷3)P o15
(3,5÷5)P o8
(1,5÷2)Po23
Straight
Straightwith spiral point
Straightor
spiral
A
B
C
D
E
Short through holes
Different length through holesin materials forming medium and long chips
Blind holes, through holes in materials forming short chips
Through holes, blind holeswith long thread runout
Blind holes with a very shortthread runout. Used for brass
Kind of flutesChamfer
angle~
Kind of chamfer -symbol
Apart from above there are also used chamfers (12÷16)P for nut taps and 24P for trapezoidal taps.
Because according to the standard, the spiral lead of flute should be the normal number of the R20 series,the real angle g is variable depending on thread diameter. Its value made approximated to the full grades,2
including the spiral lead, is stamped on the tap shank.
Usage
Chamfers of machine taps according to DIN-2197
Flutes of machine taps according to DIN-2197
o o30 <g Ł402
A, D
C, E
B
C, E
D
C
Through- for RH thread
Blind- for LH thread
Medium, long
R15
R25
L15
L40
o o10 Łg Ł202
o o10 Łg Ł202
o o20 <g Ł302
o o30 <g Ł402
o o40 <g <502
R40
R45
ChamferKinds of flutes
Usage
Hole Chip
Straight
Straight with spiral point
Right hand spiral flutes
Left hand spiral flute
ThroughShort, medium
Blind
Through Medium, long
Blind Medium, long
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Tolerance range of the internal thread
Tolerance class of the tap according to standard:
PN - 72M - 57800
PN - 92M - 57800
DIN 802
3.4. Taps classes and inner thread’s tolerance zone
Taps offered in our catalogue are produced in the basic class destined for the most common use of inner thread: for metric thread - 6H, for unified threads UNC, UNF - 2B, for Whitworth threads BSW, BSF - „normal”. Producing in other classes can be done by order.Taps classes (i.e. working part tolerance zones) for metric thread are unified by international and domestic standards. The determined tap class allows to obtain the threads of two or three tolerance zones (see picture and table below).
Internal threadTolerance H limits Tap tolerance limits
Internal threadTolerance G limits
1A ISO1 4H 4H 5H - - -
2A ISO2 6H 4G 5G 6H - -
3A ISO3 6G -
-
-
-
6G
-
7H
7G
8H
8G- - 7G*
*) Polish Standard following the international standard ISO, provides only three classes of taps, whereas the standard DIN 802 introduces additionally the fourth class 7G for “loose” threads. Furthermore, the standard DIN 802 provides the possibility of correction the tap tolerance comparing to the standard demands in case when it is required by the particular machining conditions, e.g. the sort of machining material. In such situation the symbol of the tap’s class with the sign “X”, e.g. 6HX, 6GX is obligatory.
6HT
d2
=0
,2t
ISO1
5H
t=T
D2
(kla
sa
5)
EI=0
D2
4H
0,7
t
0,5
t
0,3
t
0,1
t
d2n
ISO3
ISO2
7G0
,1t
0,3
t
4G
5G
7H
8H
6G
7G
8G
0,5
t
E=0,2t
D2
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3.5. High performance machine taps HSSE
Using of machine taps of general purpose made of the molybdenum steel class HSS, provides good results of work with conventional machines with the standard cutting speed and it is technically and economically justified in many cases of unitary or short and medium serial cutting. There are cases, where using the tool of the higher purchase price results in a significant lowering of producing costs, because of significant increase of cutting speed, tool durability as well as decrease of labour consumption and cost of servicing the work stand.Such possibilities are given by using the high performance machine taps.
Basic features of high performance machine taps
Blade material
Heat treatment
Surface treatment
Working part geometry
High speed steel HSSE, high speed powder steel HSSE-PM and solid carbide VHM characterised with thermal and abrasion resistance
High hardness with preserving good ductility
Using the super hard coatings made of titanium nitride TiN, titanium carbonitride TiCN, titanium-aluminium nitride TiAlN or aluminium- chromium nitide AlCrN and passivation OX
Adopting to each material group with various workability
Max temp. usage
2300 600
3000 400
3300 900
TiN
TiCN
TiAlN
HL
BALINIT A
BALINIT B
BALINITFUTURA NANO
BALINITHARDLUBE
Super hard coatings properties
Symbol
Kind of coatingName Color Hardness
HV 0,05Usage
Titanium nitride
Titanium carbonitride
Titanium-aluminium
nitride
Gold
Blue grey
Grey violet
Dark grey
Universal
Difficult workable,hard grinding
materials
Difficult workable,hard grinding
materials
As the above ones,dry machining
TiAlN +
WC/C3000 800
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800
800 Az
FAN
Ni
Ti
1400
HRC
Ms
AL
GAL
S-NC
NC
WGN
WGN
WGN
GG
For carbon constructional steels, free-cutting steels, low-alloy steels with tensile strength 600 MPa Ł Rm Ł 800 MPa
Type 800 for through holes in soft materials Rm Ł 500 MPa
For high-alloy steels, stainless and acid resistant steels with tensile strength Rm Ł 1000 MPa
For tool steels and difficult workable steels with tensile strength 800 MPa Ł Rm Ł 1200 MPaand for heat-treatable steels up to 38HRC
For nickel and their alloys
For titanium and their alloys
For difficult workable steels, acid resistant steels with tensile strength 1000 MPa Ł Rm Ł 1400 MPa and for heat-treatable steels up to 44HRC
For grey cast iron and spheroidal cast iron
For hardened steels, number next to symbol indicate material hardness HRC scale
For brass and short-chipping bronze
For soft aluminium and soft synthetics
For aluminium alloys Si max. 10%
For synchro tapping on CNC machines with the function of "rigid tapping"for wide range of materials
For productive cutting of wide range materials, forming middle and long chips with tensile strenght Rm <1200 MPa
Forming taps for plastic materials with ductility A ł10% 5
Forming taps for machining materials with a high adhesion
Forming taps for machining materials with reduced toughness
INOX
1300 For constructional steels, alloyed steels with tensile strength 700 MPa Ł Rm Ł 1300 MPa
Material groups and the range of application
Group Destination
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3.6. Troubleshooting guide for tapping
Problem: Tapping oversized threads (no-go gauge is too loose)
Problem: Tapping oversized threads (no-go gauge is loose)
Problem: Tapping undersized threads (go gauge doesn’t enter part way into hole).
You used improper tap for material and thread application.
Cutting speed was too high.
There was cold welding on the flanks of the tap.
Chip packing in flutes occured.
Grinding burr occured.
Incorect fixturing or positioning of part.
Inconsistent feed of tap.
The tolerance of used tap was too high comparing with required class of the thread.
Inapropriate reconditioning of a tap.
The chosen tap has not suitable geometry for multiple regrinds.
A part of tap surface wasn’t renewed while resharpening.
You used inapropriate tap for the tread being made and material being cutted.
The used tap has too small nominal size (tolerance).
You should use a suitable tap for hole type and material being cutted according to the table in catalogue.
You should reduce cutting speed. You should use more coolant/lubrication.
You should change your tool for new one. You should use coated tap. You should use more coolant/lubrication. You should remove damaged teeth.
You should use tap with another flute geometry. There could be necessity of using set of taps .
Remove it with fiber brush.
You should use tap holders with axial and parallel compensation. Try presicely fix cutted element.
You should control the feed while tapping. You should check parameters of CNC machine (program). Check lead screw for backlash. You should use holder with compensation.
You should check marking on the tap and revise if it is suitable for making required class of thread. If you have any problems contact our Technical Representative.
While reconditioning it is required that all ground surfaces maintain the original geometry put on by the manufacturer. For instructive information please contact our Representative.
You should limit the number of tap regrinds.Try to use another tap.
Try to grind the tap again.You should use a new tap.
You should use tap suitable for the hole type and material beingcutted according to the table from catalogue.
You should check marking on the tap and revise if it is suitable for making required class of thread. If you have any problems contact our Technical Representative.
Problem: Too low tap life
All reasons stated in next table “torn and rough threads”.
The tap lost its hardness by excess hear during regrinding.
The loss of surface treatment occured after regrinding.
Work hardened drill hole and hole chamfer.
Please read the table “torn and rough threads”
You should change the specification of the grinding wheel.You should use coolant while grinding.
Retreat surface of tap.You should check suitability of surface treatment for materialbeing tapped.
You sholud frequently change or regrind tap drill.You should check proper drilling speed and feed.Please anneal part before tapping.
Problem: Tapping bellmouthed hole (first few threads are oversized)
The tolerance of used tap was too high comparing with required class of the thread.
Inapropriate reconditioning of a tap.
You should check marking on the tap and revise if it is suitable for making required class of thread. If you have any problems contact our Technical Representative.
While reconditioning it is required that all ground surfaces maintain the original geometry put on by the manufacturer. For instructive information please contact our Representative.
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Problem: Torn and rough threads
You used improper tap for material and thread application.
Tap drill was too small.
The tap hole wasn’t deep enough.
Tap drill hole was missing.
Chips packing in flutes occured.
Cold welding on the flanks of the tap (loading).
Overload of the chamfer teeth occured.
Inorrect fixturing or positiong of part.
The tap was hitting the bottom of the hole.
Tapping hard or high tensile materials.
You should use tap suitable for the hole type and material beingcutted according to the table from catalogue.
You should use correct size of drill.Please check recommended size drill in catalogue(note that there are different sizes for taps and for forming taps).If you have any problems contact our Technical Representative.
You should check the actual drill depth (the drill could have slipped back into holder).
Please make sure that the tap drill hole is present (that’s common problem in multiple spindle applications on transfer lines).
Try to use tap with different flute geometry (angle).There could be necessity of using set of taps.
You should use a new tap.You should use coated tap.You should use more coolant/lubrication.You should remove damaged teeth.
Use tap with longer chamfer.You should use tap with increased number of flutes to provide more chamfered teeth.
You should use tap holders with axial and parallel compensation.Try presicely fix cutted element.
You should use tap holders with length compensation and with torque overload system.
You should check if yor tap is properly selected.High performance taps HSSE-PM and VHM may be more suitable than HSSE taps.
Problem: Torn and rough threads
You used improper tap for material and thread application.
Cutting speed was too fast or too slow.
There was cold welding on the flanks of the tap.
Chip packing in flutes occured.
Grinding burr occured.
Tap drill was too small.
There wasn’t proper cooling or lubrication while tapping.
Tool overloading occured due to coarse pitch,hard materials or short chamfers.
You should use tap suitable for the hole type and material beingcutted according to the table from catalogue.
Please select proper cutting speed.Improve coolant selection to assist the effectsof tap speed.
You should use a new tap.You should use coated tap.You should use more coolant/lubrication.You should remove damaged teeth.
Try to use tap with different flute geometry (angle).There could be necessity of using set of taps.
Remove it with fiber brush.
You should use correct size of drill.Please check recommended size drill in catalogue(note that there are different sizes for taps and for forming taps).If you have any problems contact our Technical Representative.
Select properly lubricant according to the notes from the catalogue.Use adequate amounts of coolant/lubrication.
There could be necessity of using set of taps.
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DIN-371 C M10 LH 6H L45 HSSE-PM S-NC IK TiCN
3.7. Marking and stamping of high performance machine taps
Example:
machine tap according to the standard DIN-371 for the left thread M10 class 6H with spiral flutes 45° (for blind hole) for tapping on CNC machines, TiCN coated, with internal cooling.
Marking: given in orders, invoices, specifikations, on the packages
Stamping: on the shank of tap
material of blade (see p. 1)
class of thread (see p. 3.4)
spiral flutes symbol (see p. 3.3)
standard symbol (see p. 3.2)
chamfer (see p. 3.3)
size of thread
thread direction
coating symbol (see p. 3.5)
internal cooling
destination (see p. 3.5)
TECHNICAL INFORMATION
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producersize of thread
chamfer
thread direction
class of thread
spiral flutes direction
spiral flutes angle
material of blade
destination
order number
internal cooling
FANAR INOX M10x1,5-6H-LH
production year
C R 40 HSSE IKR
123456
291
i
aa
L4L4
Ćd2
Ćd2
3.8. Connecting dimensions of taps acc. to ISO and DIN
The below table shows shank diameters and square dimensions differences for taps according to standard ISO-529, DIN-352, DIN-371, DIN-376. These differences should be taken into consideration when choosing the tap holders.
TECHNICAL INFORMATION
Sizeof thread
ISO-529 DIN-371DIN-352 DIN-376
Ćd2(h9) L4 a(h11) Ćd2(h9)Ćd2(h9) L4L4 a(h12)a(h12) Ćd2(h9) L4 a(h12)
M3
M2,5
M2
3,15 5 3,5 6 2,72,5 2,23,5
2,8
2,8
6
5
2,7
2,1
2,1
4,5M4,5 6 6 8 4,93,55 6 8 4,9 3,5 6 2,7
7 6 8 4,95M5 8 4,964 2,763,5
8 6 8 4,96,3M6 8 4,965 3,464,5
8 6 8 4,97,1M7 8 5,575,6 4,375,5
9 6 8 4,98M8 9 6,286,3 4,986
10 7 8 5,59M9 10 797,1 5,587
11 7 8 5,510M10 11 8108 5,587
10 9 10 79M12 7,1 7109
11,2M14 12 11 12 99 11 12 9
12,5M16 13 12 12 910 12 12 9
14M18 14 14 14 1111,2 14 14 11
14M20 14 16 15 1211,2 16 15 12
16M22 16 18 17 14,512,5 18 17 14,5
18M24 18 18 17 14,514 18 17 14,5
20M27 20 20 19 1616 20 19 16
20M30 20 22 21 1816 22 21 18
22,4M33 22 25 23 2018 25 23 20
25M36 24 28 25 2220 28 25 22
28M39 26 32 27 2422,4 32 27 24
28M42 26 32 27 2422,4 32 27 24
31,5M45 28 36 32 2925 36 32 29
31,5M48 28 36 32 2925 36 32 29
35,5M52 31 40 35 3228 40 35 32
3,55M3,5 5 4 6 32,8 4 6
5
3 2,5
4M4 6 4,5 6 3,43,15 4,5 6 3,4 2,8
5
5
2,1
1,8
5 2,1
8M11 9 8 9 6,26,3 8 9 6,2
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4. DIES
Standards
EN 22 568(in the past DIN 223)
PN-92/M-58070ISO 2568
EN 24 231(in the past DIN 5158)
PN-92/M-58161ISO 4231
EN 24 230(in the past DIN 5159)
PN-92/M-58160ISO 4230
DIN
DIN
DIN
Round dies for metric coarse and fine threads, UNC, UNF,BSW, BSF as well as other threads, excluding the pipe threads G and R
Round dies for pipe threads G
Round dies for tapered pipe threads R
Symbol Destination
4.1. Die construction elements
4.2. Dimension standards
s
w
z
12
n - chamfer
- outside diameter
- chamfer angle- rake angle
- hole for fixing screw
- chip hole
- nominal thread diameter
- spiral face inclination
- spiral face
- die thicknessh1
Dimension standards assign proper series of dies outer dimensions (diameters, thickness) to nominal standards as well as determine the dimensions connected with dies fixing in the holder (position, size of holes for fixing screws and V-grooves).
TECHNICAL INFORMATION
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293
4.3. Tolerances of the thread being cuted
4.4. Variants of execution and their usage
Dies presented in the catalogue are destined for cutting the most often occuring basic tolerances for the given kind of thread: for metric thread 6g, for threads UNC, UNF etc. 2A. We can produce the dies destined for the other tolerance zone if demanded, e.g. for metric threads: 4h for tight threads, 6e for threads under the thin galvanic coatings.
Cutting speed [m/min] Cutting fluidMachining material
4 ÷ 8
8 ÷ 12
4 ÷ 8
3 ÷ 6
2 ÷ 4
3 ÷ 8
15 ÷ 25
10 ÷ 16
5 ÷ 8
7 ÷ 11
11 ÷ 15
12 ÷ 18
8 ÷ 12
Oil
Oil
Oil, special oil
Oil
Special oil
Oil, kerosene
Oil, special oil
Oil
Oil, emulsion
Oil, emulsion
Oil, special emulsion
Special oil, kerosene
Special oil, kerosene
Carbon constructional steels
Free - cutting steels
Carburizing steels
Heat - treatable steels
INOX steels
Grey cast iron
Short chipping bronze
Long chipping brass
Long chipping bronze
Short chipping bronze
Cooper
Long chipping aluminium
Cast aluminium
4.5. Technological recommendations for machine dies
800
800 SPN
Ms
INOX HSSE
HSS
HSS
HSS
Kindof
work
Desti-nation
Executionof
thread
Bladegeometryproperties
Symbolof
executionvariant
Diematerial
Usage
Mach
ine
Hig
h p
erf
orm
an
ce
Cu
tted
Lap
ped
Withoutspiral face
Withspiral face
Withoutspiral face
Withspiral face
Constructional steel, caststeel up to Rm Ł 800 MPa
Steels as above, higher thread quality, for work with automatic lathe
Brass, shortchipping bronze
Stainless steels,cast aluminium, spheroidal cast iron
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4.6. Marking and stamping of dies
TECHNICAL INFORMATION
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Example: high performance machine die acc. to DIN-EN 22 568 for the thread M12, thread tolerance 6g, for stainless steel
Marking: given in orders, invoices, specifikations, on the packages
Stamping: on diethread tolerance
execution variant
material of blade
size of thread
INO
X
M12 6g
FANAR
HS
SE
material of blade (see p.1)
execution variant (see p.4.4)
standard symbol (see p.4.2)
size of thread
thread tolerance (see p.4.3)
DIN-EN 22 568 M12 6g HSSE INOX
5. GAUGES FOR TAPER THREADS
5.1. Gauges NPT
Flattening equal with workpiece plane
The base depth
Flattening one thread turn above workpiece plane
Minimal tapping depth
Flattening one thread turn below workpiece plane
Maximum tapping depth
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i TECHNICAL INFORMATION
5.2. Gauges R, Rc/Rp
5.2.1. Standards
5.2.2. Design of gauges
Pipe threads where pressure tight joint are made on the threads according to PN-EN 10226-1, PN-EN 10226-2 (ISO7-1:2000). Verification by means of limit gauges according to PN-EN 10226-3 (ISO-7-2:2000)
Gauge No. 1
Taper full form threaded plug gauge.
This gauge is a 1:16 taper full form threaded plug gauge and is suitable
for checking the major diameter (D) and pitch diameter (D ) at the 2
gauge plane of internal parallel (Rp) threads and internal taper
(Rc) threads.
Gauge No. 2
Taper full form threaded plug gauge with relief.
This gauge is a 1:16 taper full form threaded plug gauge with relief of
threads and is suitable for checking the major diameter (D) and pitch
diameter (D ) at the gauge plane, and the accomodation lenght of 2
inernal parallel (Rp) threads and internal taper (Rc) threads.
1 Accomodation lenght: distance from the face of an internally threaded workpiece to the first obstruction which the externally threaded workpiece will encounter on assembly.
Gauge No. 3
Parallel full form threaded ring gauge.
This gauge is parallel full form threaded ring gauge and is suitable
for checking the minor diameter (d ) and pitch diameter (d ) at the 1 2
gauge plane of taper external (R) threads.
Gauge No. 4
Taper plane ring gauge.
This gauge is a 1:16 taper plain ring gauge and is suitable for checking
the major diameter (d) and the related useful thread lenght on
taper external (R) threads.
Gauge No. 5
Taper modified thread form check plug gauge
This check plug gauge is used to check the dimensions of the parallel
threaded ring gauge (gauge No. 3) when manufacturing the ring gauge
and for checking the ring gauge for wear.
Gauge No. 6
Parallel modified thread form check ring gauge
This check ring gauge is provided to check the dimensions of the taper
full form threaded plug gauges (gauge Nos. 1 and 2) when manufacturing
the plug gauges and for checking the plug gauges for wear9
1
296
iTECHNICAL INFORMATION
5.2.3. Use of gauges and checking of threads
Checking of internal taper (Rc) and internal parallel (Rp) threads
Stage 1: The taper threaded plug gauge (gauge No. 1) is screwed hand tight into the internal thread. The internal
thread is within the permissible tolerance if the end face of the threaded workpiece lies between the step faces,
or flush with one of the step faces on the gauge.
Key:
1 - end face of work piece flush with tolerance step on gauge,
2 - end face of work piece flush with face of gauge
3 - gauge No. 1
Stage 2: The taper threaded plug gauge with relief (gauge No 2) is screwed hand tight into the internal thread.
The internal thread is within the permissible tolerances if the end face of the threaded workpiece lies between
the step faces, or flush with one of the step faces on the gauge.
Key:
1 - end face of work piece flush with tolerance step on gauge,
1 - end face of work piece flush with tolerance step on gauge,
2 - end face of work piece flush with face of gauge
2 - end face of work piece flush with face of gauge
3 - gauge No. 2
3 - gauge No. 3
Note 1 : If a workpiece is rejected by gauge No. 2 but accepted by gauge No. 1, then this may indicate a lack
of accomodation lenght.
Note 2 : A variation in the relative position of the gauge steps of gauge Nos. 1 and 2 in excess of 0,5P but
not greater than 1P is permissible when the manufacturer and purchaser agree that the use of a thread sealant
during assembly of the workpiece will compensate for the increased differnce in the gaugin results.
Note 3 : In the case of Rp threads, if the depth of chamfer at the pitch diameter of the threads is more or
less than 0,5P, then the gauging result will be slightly affected.
Checking of external taper (R) threads
Stage 1: The threaded ring gauge (gauge No. 3) is screwed hand-tight onto the external thread. The external thread
is within the permissible tolerance if the end face of the workpiece lies between the step faces, or flush with one
of the step faces on the gauge.
Key: 9
297
i TECHNICAL INFORMATION
Stage 2: The taper plain ring gauge (gauge No. 4) is positioned hand tight over the external thread. The external
thread is within the permissible tolerances if the end face of the threaded workpiece lies betwee the step faces,
or flush with one of the step faces of the gauge and the roots of all threads within the area covered by the gauge
are fully formed.
Note: A variation in the relative positions of the gauge steps of gauge Nos. 3 and 4 in excess of 0,5P but no greater
than 1P is permissible when the manufacturer and purchaser agree that the use of a thread sealant during
the assembly of the workpiece will compensate for the increased differnce in the gauging results.
Checking of taper plug gauges wear (gauge Nos. 1 and 2)
The pitch diameter of taper threaded plug gauges may be checked with the parallel modified thread form check
ring gauge (gauge No. 6). The major diameter of taper threaded plug gauges shall be checked by direct measurment.
Key:
1 - gauges No 1 and 2,
2 - gauges No 6,
3 - distance from face of step on plug gauge to face of ring gauge shall be l13
(see PN-EN 10226-3:2005 table 16)
4 - this face marked to indicate position of gauge plane
Checking of parallel ring gauges wear (gauge No 3)
Parallel full form threaded ring gauges shall be checked by using the taper modified thread form check plug gauges
at the pitch diameter. The minor diameter shall be checked by direct measurment.
Key:
1 - gauges No 5
2 - gauges No 3
3 - distance from face of step on plug gauge to face of ring gauge shall be l14
(see PN-EN 10226-3:2005 table 16)
4 - this face marked to indicate position of gauge plane
9
Key:
1 - end face of work piece flush with tolerance step on gauge,
2 - end face of work piece flush with face of gauge
3 - gauge No. 4
298
iTECHNICAL INFORMATION
RECOMMENDED TORQUE VALUES FOR TAPPED MATERIALS WITH RM=1000 MPA
The values given are approximate and may be different depending on specific operating conditions
ThreadM
34568
1012141618202224273033
Torque[Nm]
0,51,2248
16223640637080
125140220240
35
30
25
20
15
10
20 40 60 80 100 120 140 160 180 200
Torque [Nm]
Gw
int M
SHANK RUNOUT MOUNTED IN THE ER COLLET
D L
1-1,61,6-33-6
6-1010-1818-2626-40
6101625405060
S
0,0150,0150,0150,0150,0200,0200,020
L
D
S
6. TOOLHOLDER
6.1. Quick-change adapters with safety clutch for taps
6.2. ER collets mounting
9
299
i TECHNICAL INFORMATION
6.3. Toolholders balance
Definition of unbalance
Unbalance is a displacement of the center of gravity of the rotating mass from the axis of rotation.The rotating mass includes: machine spindle, toolholder, intermediate components (collets), other additional elements of toolholders (nuts) and tool The reason of unbalance is geometric asymmetry, tolerance of, mounting errors, etc. Unbalance causes vibration of the setup, which reduce tool lifeand decrease quality of machining.To limit to an acceptable level of unbalance minimize clearances on the spindle and set suitable tools and toolholders. For most demanding applications it may be necessary not only balancing the toolholders, but also the tools.
Balancing
Balancing is to reduce the unbalance by moving the center of rotating mass in the direction of the axis.This is done by ensuring the proper geometry and adding additional weight or removing.This target can only be achieved to some degree, as will always be residual unbalance.
Balance accuracy classes
From an economic perspective it is not profitable too much tightening of requirements for rotating mass balance. In order to achieve a compromise between the technical and economic aspects, norm ISO 1940 introduced balance accuracy classes. It identifies the types of applications for each class, and so:- G6,3 class is designed for machine parts and general use machines- G2,5 class is designed for high speed machine parts.
G2,5
G1
G0,4
G6,3
G16
G40
100 1000 10000
1
10
100
1000
Acc
epta
ble
resi
dual u
nbala
nce
Udop [m
m o
r gm
m / k
g]
Maximum running speed [rpm]9
300
iTECHNICAL INFORMATION
6.4. Toolholders shanks
MORSE DIN-228
2L
D
A
G
L
D
A1
Taper D A L L G
MK1MK2MK3MK4MK5
12,06517,78023,82531,26744,399
3,55,05,06,56,5
62,075,094,0
117,5149,5
M6M10M12M16M20
DIN-228 BDIN-228 A
53,564,081,0
102,5129,5
1 2
Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Connecting surfaces precision grinded in AT3 class.
DIN DIN-2080
Taper D A K G
DIN30DIN40DIN50
31,7544,4569,85
1,61,63,2
M12M16M24
81012
1
Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.
GD D
A K
L
1 2
D
50,063,097,5
2 L
68,493,4
126,8
9
301
i TECHNICAL INFORMATION
ISO DIN-69871 A
TR DIN-6327
Taper
Shank
D
D 1
A
B
K
K
G
ISO30ISO40ISO50
TR20TR28TR36TR48
31,7544,4569,85
TR20x1,5TR28x2TR36x2TR48x2
3,23,23,2
568
10
M12M16M24
15,915,915,9
12121418
1
Features:- Toolholders for machines with automatic tool changing- For toolholder mounting in the machine are used pull studs- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.- Body balanced in G6,3/8000rpm class in standard version
Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Precision grinded shank in g5 tolerance.
G
K
D
D D
D
A
L
L
K B
1
1 2
2
D
50,0063,5597,50
2 L
LD 2
47,8068,40
101,75
8895
118144
20283648
Versions:- DIN-69871 A - shank without internal cooling- DIN-69871 AD - with a central hole- DIN-69871 AD+B - with a central hole and the holes in the flange
9
302
iTECHNICAL INFORMATION
MAS BT JIS B6339
Features:- Toolholders for machines with automatic tool changing- For toolholder mounting in the machine are used pull studs - Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.- Maximum running speed 10 000 rpm in standard version
HSK DIN-69893 A
Taper D A K G
BT30BT40BT50
31,7544,4569,85
223
M12M16M24
222738
1
G
K
D D
A
L
1 2
D
4663
100
2 L
48,465,4
101,8
G
K
D D
A
L
1 2
Taper D A K G
HSK40HSK50HSK63HSK80
HSK100
3038486075
4,05,06,38,0
10,0
M12x1M16x1M18x1M20x1,5M24x1,5
2026262629
1 D
40506380
100
2 L
2025324050
Features:- Toolholders for machines with automatic tool changing- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.- Body balanced in G6,3/8000rpm class in standard version- Shank design provides axial positioning accuracy, high rigidity, high torque transfer at high speeds
Versions:- shank without internal cooling- with a central hole- with a central hole and the holes in the flange
9
303
i TECHNICAL INFORMATION
VDI DIN-69880
Shank
VDI20VDI25VDI30VDI40VDI50
Features:- Toolholders are made of chrome-manganese steel, carburized and hardened to 58HRC- Cylindrical surface of shank is grinded in h6 tolerance
CYLINDRICAL DIN-1835
Weldon Shank D
W20W25W32W40W50
2025324050
Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Cylindrical surface of shank is grinded in h6 tolerance
H
L
D
A
B
D L A B
2025304050
4048556378
2424404048
21,721,729,729,735,7
D
5058688398
2 H
1823,5273645
1
D
1 2
D
o
Versions:- DIN-1835 A - straight cylindrical shank- DIN-1835 B - WELDON: cylindrical shank with flats parallel to the axis of the cylinder- DIN-1835 E - WHISTLE-NOTCH: cylindrical shank with 2 degrees of flattening
D
2o
DIN-1835 EDIN-1835 B
9
304
iTECHNICAL INFORMATION
7. INFORMATION TABLES
THREAD THREAD THREAD THREAD THREAD THREAD
2
2,6 2,5
3 3,5 4
7
5 4,5
8
6
91011
1412
1618202224
M (6H)
Ć d Ć d Ć d Ć d Ć d Ć d
1,60
2,152,05
2,502,903,30
6,00
4,203,80
6,80
5,00
7,808,509,50
12,0010,20
14,0015,5017,5019,5021,00
27
3330
363942
4845
5256606468
RECOMMENDED HOLE’S DIAMETERS FOR TAPPING WITH TAP
24,00
29,5026,50
32,0035,0037,50
43,0040,50
47,0050,5054,5058,0062,00
4 x 0,5
6 x 0,75 5 x 0,5
8 x 0,75 8 x 1 9 x 1
12 x 1,25
10 x 1,2510 x 1
12 x 1,5
12 x 1
14 x 1,2514 x 1,5
18 x 1
16 x 1
18 x 1,518 x 220 x 1
16 x 1,5
20 x 1,520 x 2
MF (6H)
22 x 1
22 x 222 x 1,5
24 x 124 x 1,524 x 2
30 x 2
27 x 227 x 1,5
30 x 3
30 x 1,5
33 x 1,533 x 233 x 3
3,50
5,204,50
7,207,008,00
10,80
8,809,00
10,50
11,00
12,8012,5015,00
17,0014,50
16,5016,0019,0018,5018,0021,00
20,0020,50
23,0022,5022,00
28,00
25,0025,50
27,00
28,50
31,5031,0030,00
G-1/16”
G-1.3/8”
G-1.1/8”G-1.1/4”
G-1.1/2”G-1.3/4”
G
G-1/8”G-1/4”G-3/8”G-1/2”G-5/8”G-3/4”G-7/8”G-1”
G-2”
6,70
11,808,80
15,2519,0021,00
35,50
28,2524,50
39,50
30,75
42,0045,0051,0057,00
UNC (2B)
No 5 - 40
1/4 - 20
No 6 - 32No 8 - 32No 10 - 24No 12 - 24
5/16 - 18 3/8 - 16 7/16 - 14 1/2 - 13 9/16 - 12 5/8 - 11 3/4 - 10
1.1/8 - 7 1 - 8 7/8 - 9
1.1/4 - 7 1.3/8 - 6 1.1/2 - 6 1.3/4 - 5 2 - 4.1/2
2,60
3,502,70
3,804,505,10
10,70
7,906,50
12,30
9,30
13,5016,5019,50
25,0022,25
28,0030,7034,0039,5045,00
No 5 - 44
1/4 - 28
No 6 - 40No 8 - 36No 10 - 32No 12 - 28
5/16 - 24 3/8 - 24 7/16 - 20 1/2 - 20 9/16 - 18 5/8 - 18 3/4 - 16
1 - 12 7/8 - 14
UNF (2B)
2,70
3,503,00
4,104,655,50
8,506,90
9,9011,50
14,5013,00
17,5020,5023,30
29,501.1/4 - 1225,501.1/8 - 12
32,501.3/8 - 1236,001.1/2 - 12
1/8 - 40 3/16 - 24 1/4 - 20 5/16 - 18 3/8 - 16 7/16 - 14
5/8 - 11
1/2 - 12 9/16 - 12
3/4 - 1011/16 - 11
1.1/8 - 7 1.1/4 - 7 1.1/2 - 6 1.3/4 - 5 2 - 4.1/2
BSW (normal)
7/8 - 9 1 - 8
2,50
5,103,60
6,507,909,25
15,00
12,0010,50
16,50
13,50
19,2522,0024,75
33,5028,00
39,0044,50
36 x 236 x 1,5
36 x 339 x 1,542 x 1,542 x 242 x 345 x 245 x 348 x 248 x 348 x 452 x 252 x 352 x 4
34,0034,50
33,0037,5040,5040,0039,0043,0042,0046,0045,0044,0050,0049,0048,00
THREAD THREAD THREAD THREAD THREAD
M (6HX)
Ć d Ć d Ć d Ć d Ć d
MF (6HX) G (-X) UNC (2BX) UNF (2BX)
RECOMMENDED HOLE’S DIAMETERS FOR TAPPING WITH FORMING TAP
2
2,5 2,2
3 3,5 4 5
8 6
10
1412
16
1,83
2,302,00
2,803,253,704,65
7,405,55
9,30
13,0011,20
15,00
M 12 x 1M 12 x 1,25M 12 x 1,5M 16 x 1,5M 18 x 1,5M 20 x 1,5
M 8 x 1M 10 x 1M 10 x 1,25
11,511,411,315,317,319,3
7,559,59,4
2,93,153,84,355,757,38,8
No 10-24No 12-24 1/4-20
No 5-40No 6-32
No 8-32
5/16-183/8-16
10,311,8
5/8-11 14,8
7/16-141/2-13
No 10-32No 12-28 1/4-28
No 5-44No 6-40
No 8-36
5/16-24 3/8-24
2,93,23,854,455,15,957,459
10,512,1
5/8-183/4-16
15,2518,324,45
7/16-201/2-20
1-12
9,212,415,919,921,925,4
G-1/8"G-1/4"G-3/8"G-1/2"G-5/8"G-3/4"
9
305
TECHNICAL INFORMATIONi
424436383183282925462122181915921415127311571061
909796
637707
579531
424472
386354326303283
245265
40
RELATIONSHIPS OF PERIPHERIAL SPEED AND ROTATIONAL SPEED & TOOL DIAMETER
37143183278524762228185715921393123811141013
928796696
557619
506464
371413
338309286265248
214232
35
318327282387212219101592136411941061
955868796682597
477434398
318354
289265245227212
184199
531
30
2653227419891768159213261137995884796723663568497
398442
362332
265295
241221204189177
153166
25
RELATIONSHIPS OF RESISTANCES Rm, HRC, HB, HV 10
212218191592141512731061
909796707637579531455398
318354
289265
212236
193177163152141
122133
20
19101637143212731146955819716673573
477409358
286318
260239212
174159147136127
110119
521
191
18
159213641194
V = pd n / 1000 [m/min]
1061955796682597531477434398341298
239265
217199
159177
145133122114106
9299
15
12731091
955849764637546477424382347318273239
191212
174159
127141
116106
98
85
7380
12
91
1
1061909796707637
455398354318289265227199
159177
145133
106
531
118
9688827671
6166
10
849728637566509424364318283255231212182159
127141
116106
8594
7771656157
4953
8
637546477424382318273239212191174159136119106
958780
6471
5853494542
3740
6
53145539835431826522719917715914513311499
8088
7266
5359
4844413835
3133
5
424364318283255212182159141127116106
9180
9471
5853
4247
3935333028
2427
4
318273239212191159136119106
9587806860
4853
4340
3235
2927242321
1820
3
212182159141127106
9180716458534540
3235
2927
2124
1918161514
1213
2
Ćd[mm]
1
3,5
4,5
1011121416
2018
2224
3027
3336394245
5248
3
4
5 6 7 8 9
287293302
317310
327336
345
382
364355
392
373
403413
423
446434
458473484497514
596
544527
560
615
578
720
639655675
940900864829800773
745
698
273278287
301295
311319
328
363
346337
372
354
383393
402
424413
435449460472488
567
517501
532
584
549
607622
282930
3231
3334
35
39
3736
40
38
4142
43
4544
4647484950
55
5251
53
56
54
61
575859
686766656463
62
60
920940970
1020995
10501080
1110
1230
11701140
1260
1200
13001330
1440
1360
14801530157016201680
1980
18901730
1845
2050
1910
2140
1400
100105110
130
120115
135
125
140145150
160155
165170
175180185
210
195190
200
215
205
240
220225230
280272268260255250245
235
758085
9590
717681
9086
95100105
124
114109
128
119
133138143
152147
157162
166171176
199
185181
190
204
195
228
209214219
266258255247242238233
223
272625242322
240255270
305285
320335350
415
385370
430
400
450465480
510495
530545
560575595
675
625610
640
690
660
770
705720740
900870860835820800785
755
HV 10HV 10 HBHB HRCHRCRm
[MPa]Rm
[MPa]HV 10HBHRCRm
[MPa]
9
306
iTECHNICAL INFORMATION
LIMIT DIMENSIONS OF PITCH DIAMETER - INTERNAL THREAD
ISO metric thread American unified thread UNC and UNF
Whitworth pipe thread G
6HNominal
sizeNominal
size
Nominal size
2B2B / 3B
minMF UNFM UNC
M 2M 2,2M 2,5M 3M 3,5M 4
M 4,5M 5
M 6
M 7M 8
M 9M 10
M 12
M 14
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 33
M 36
M 39
M 42
M 45
M 48
M 52
1,7401,9082,2082,6753,1103,5453,6754,0134,4804,6755,3505,5136,3507,1887,5137,3508,1889,0269,5139,3509,188
10,86311,35011,18811,02612,70113,02614,70115,02616,37617,02618,37619,02618,70120,37621,02622,05123,02622,70125,02625,05126,02625,70127,02627,72729,02628,70131,02630,70130,72732,02631,70133,40235,02634,70134,05136,40238,02637,70137,05139,02639,07741,02640,70140,05142,07744,02643,70143,05144,75247,02646,70146,05148,75250,70150,051
1,8302,0032,3032,7753,2223,6633,7754,1314,6054,7755,5005,6456,5007,3487,6457,5008,3489,2069,6459,5009,348
11,06311,51011,36811,21612,91313,21614,91315,21616,60017,21618,60019,21618,91320,60021,21622,31623,22622,92525,22625,31626,22625,92527,22628,00729,22628,92531,22630,92531,00732,22631,92533,70235,22634,92534,31636,70238,22637,92537,31639,22639,39241,22640,92540,31642,39244,22643,92543,31645,08747,23846,93746,33149,08750,93750,331
1,7591,9282,2282,6953,1313,5673,6954,0354,5044,6955,3765,5356,3767,2167,5357,3768,2169,0589,5359,3769,216
10,89711,37611,21611,05812,73913,05814,73915,05816,41817,05818,41819,05818,73920,41821,05822,09923,05822,73925,05825,09926,05825,73927,05827,78029,05828,73931,05830,73930,78032,05831,73933,46235,05834,73934,09936,46238,05837,73937,09939,05839,14041,05840,73940,09942,14044,05843,73943,09944,82347,05846,73946,09948,82350,73950,099
1,8492,0232,3232,7953,2433,6853,7954,1534,6294,7955,5265,6676,5267,3767,6677,5268,3769,2389,6679,5269,376
11,09711,53611,39611,24812,95113,24814,95115,24816,64217,24818,64219,24818,95120,64221,24822,36423,25822,96325,25825,36426,25825,96327,25828,06029,25828,96331,25830,96331,06032,25831,96333,76235,25834,96334,36436,76238,25837,96337,36439,25839,45541,25840,96340,36442,45544,25843,96343,36445,15847,27046,97546,37949,15850,97550,379
2,7642,7992,9903,0943,6503,7084,1384,3104,7984,8975,5245,7617,0217,2498,4948,8379,934
10,28711,43011,87412,91313,37114,37614,95817,39918,01920,39121,02623,33824,02626,21827,20129,39330,37632,17433,55135,34936,72641,15147,135
7,1429,147
12,30115,80619,79321,74925,27929,03931,77036,41840,43142,84446,32452,26758,135
2,8472,8803,0843,1803,7463,8004,2474,4094,9105,0045,6485,8707,1557,3718,6398,961
10,08910,42411,59512,01713,08613,52014,55915,11017,59518,18420,59921,22423,56121,22426,45721,22429,63724,21932,43827,39935,61636,93741,44547,450
2,8272,8603,0583,1573,7213,7774,2194,3844,8824,9765,6165,8427,1207,3418,6038,931
10,05110,39111,55211,98113,04313,48214,51415,07217,54418,14320,54621,18123,50524,17126,39827,35129,57630,52832,37233,70635,55036,88641,37247,371
7,2499,254
12,42615,93119,93521,89125,42129,18131,95036,59840,61143,02446,50452,44758,315
M 4x0,5
M 5x0,5
M 6x0,75
M 8x0,75M 8x1
M 10x0,75M 10x1M 10x1,25
M 12x1M 12x1,25M 12x1,5
M 14x1,5
M 16x1,5
M 18x1,5
M 20x1,5M 20x2
M 22x1,5
M 24x1,5M 24x2M 26x1,5
M 27x1,5M 27x2M 28x1,5
M 30x1,5M 30x2M 32x1,5M 32x2
M 33x1,5M 33x2
M 36x1,5M 36x2M 36x3
M 39x1,5M 39x2M 39x3M 40x1,5
M 42x1,5M 42x2M 42x3
M 45x1,5M 45x2M 45x3
M 48x1,5M 48x2M 48x3
M 52x2M 52x3
min
min
min
6G 3B
max maxmax max
max
No 5 - 40
No 6 - 32
No 8 - 32
No 10 - 24
No 12 - 24
1/4 - 20
5/16 - 18
3/8 - 16
7/16 - 14
1/2 - 13
9/16 - 12
5/8 - 11
3/4 - 10
7/8 - 9
1 - 8
1.1/8 - 7
1.1/4 - 7
1.3/8 - 6
1.1/2 - 6
1.3/4 - 52 - 4.1/2
No 5 - 44
No 6 - 40
No 8 - 36
No 10 - 32
No 12 - 28
1/4 - 28
5/16 - 24
3/8 - 24
7/16 - 20
1/2 - 20
9/16 - 18
5/8 - 18
3/4 - 16
7/8 - 14
1 - 12
1.1/8 - 12
1.1/4 - 12
1.3/8 - 12
1.1/2 - 12
G-1/16”G-1/8”G-1/4”G-3/8”G-1/2”G-5/8”G-3/4”G-7/8”G-1”G-1.1/8”G-1.1/4”G-1.3/8”G-1.1/2”G-1.3/4”G-2”
9
307
TECHNICAL INFORMATIONi
9
D1L
2
D3
L2
D2
1:1
6
D3
L m
in.
D4 min.
L1
Hole with hollow is recommended if possible Hollow
1:1
6
INITIAL HOLE DIAMETERS FOR TAPERED PIPE THREAD RC, NPT
C. Initial hole recommended for blind holesA. Cylindrical hole without the use of a reamer B. Cylindrical hole reamed tapered reamer
Standard taps are suitable for hole shapes from A to C, as far as possible, avoid A shape. For blind holes, fig C, for which it is not possible to achieve given L depth, special taps are required.
Rc
nom. P (tpi) D2 D (JS11)3 L2
1/16 28 6,1 6,56 11,1
1/8 28 8,1 8,57 11,1
1/4 19 10,75 11,45 16,3
3/8 19 14,25 14,95 16,7
1/2 14 17,7 18,63 22,3
3/4 14 23,1 24,12 23,6
1 11 29,1 30,29 28,3
nom. P (tpi) D2 D (+0,05)3 L2
1/16 27 5,95 6,39 11,8
1/8 27 8,3 8,74 11,9
1/4 18 10,75 11,36 17,4
3/8 18 14,15 14,80 17,7
1/2 14 17,45 18,32 23,1
3/4 14 22,8 23,67 23,6
1 11 1/2 28,65 29,69 28,4
1 1/4 1 1/411 1/2 37,35 38,45 28,9
1 1/2 1 1/211 1/2 43,45 44,52 28,9
2 11 1/2 55,45 56,56 29,3
nom. P (tpi) D (JS11)3 L min.1 L min. D min.4
1/16 28 6,56 5,6 9,9+0,37,6
1/8 28 8,57 5,6 9,9 +0,39,6
1/4 19 11,45 8,4 14,6 +0,513,0
3/8 19 14,95 8,8 15 +0,516,5
1/2 14 18,63 11,4 20 +0,520,6
3/4 14 24,12 12,7 21,3 +0,526,0
1 11 30,29 14,5 25,4 +0,532,8
nom. P (tpi) D (+0,05)3 L1 L min. D min.4
1/16 27 6,39 7 10 7,6
1/8 27 8,74 7 10 10
1/4 18 11,36 10,2 14,5 13,1
3/8 18 14,80 10,6 15 16,5
1/2 14 18,32 13,8 19 20,5
3/4 14 23,67 14,2 20 25,8
1 11 1/2 29,69 17 24 32,2
11 1/2 38,45 17,5 24,5 41
11 1/2 44,52 17,5 24,5 47,2
2 11 1/2 56,56 18 25 59,2
NPT
Rc
NPT
Rc
nom. P (tpi) D1 L2
1/16 28 6,15 11,1
1/8 28 8,15 11,1
1/4 19 10,85 16,3
3/8 19 14,3 16,7
1/2 14 17,8 22,3
3/4 14 23,2 23,6
nom. P (tpi) D1 L2
1/16 27 6,15 11,8
1/8 27 8,5 11,9
1/4 18 11 17,4
3/8 18 14,4 17,7
1/2 14 17,8 23,1
3/4 14 23,15 23,6
1 111/2 29,05 28,4
11 1/2 37,8 28,91 1/4
11 1/2 43,85 28,91 1/2
2 11 1/2 55,85 29,3
TAPERED TREAD PROFILE EXTERNAL NPT
1/16
1/8
1/4
3/8
1/2
3/4
1
1.1/4
1.1/2
2
2.1/2
3
3.1/2
4
27
27
18
18
14
14
11.1/2
11.1/2
11.1/2
11.1/2
8
8
8
8
7,950
10,287
13,716
17,145
21,336
26,670
33,401
42,164
48,260
60,325
73,025
88,900
101,600
114,300
9,896
9,967
15,103
15,255
19,850
20,155
25,006
25,616
26,040
26,878
39,908
41,496
42,766
44,036
Thread diameter (inch)
Thread pitch (T.P.I)
Outer diameter of the pipe
(mm)
Total thread lenght (mm)
060
030
030
0 0l 47Convergence
The outer diameter of the pipe
(mm)
Partial thread profileEffective thread lenght
Total thread lenght
Pitch
090 090
308
FORM OF TOOL SELECTIONTAP FORMING TAP DIE
CUSTOMER’S DATA
1. Kind of thread
2. Machine and character of threading
3. Working material
4. Tool
Date: ..........................
Name and company address:
1.1. Size: .....................................
2.1. Type of machine:
3.1.Type of element: .................................................................................................................................
4.1. Nowadays used tool (type): ........................................................................................................................
1.3. Character of threaded hole / threaded bar:
2.2. Method of threading:
3.2. Material (symbol): ..........................................................................
4.2. Vitality: ...................................
4.3. Expected sizes of tool:
5. Notes
3.3. Hardness: ....................HB .......................HRC; 2Extension strength Rm.......................N/mm
3.4. Type of threaded hole/threaded bar:
2.6. Lubrification:
2.3. Forced feed:
Axial float:
Radial float:
Friction clutch:
2.4. Type of holder / handle:
2.5. Cutting speed: .....................m/min, .....................V.p.m.
horizontal
Drilled
hand
yes
yes
yes
yes
vertical
Reamed Other: Casted
automat Lubricant: ..............................................................
no
no
no
no
1.2. Tolerance: .........................
Through Blind Bar Other
Contact person: ........................................................................................................tel..................................................
W=
Date:......................... Representative:..................................... Inq. nr ...............
FANAR fills
309