disc coupling - reijay.com · disc coupling 1. no need for lubrication and coupling maintenance 2....
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Disc Coupling
1. No need for lubrication and coupling maintenance
2. No wearing parts
3. The condition of the disc packs can be inspected by a strobe light while the machine runs
4. High torsional rigidity with no rotation
5. High power density (higher torque for a given outside diameter)
6. Resistance to harsh environment
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Technical data for the diaphragm
Style Rated
torque (Nm)
Peak torque
(Nm)
Torsional
stiffness×106
(Nm/rad)
Permissible axial
misalignment (±Δka mm)
Permissible
angular misalignment
(°)
90-6 240 480 0.3 1.5 1.5°
110-6 575 150 0.4 2.1 1.5°
132-6 1100 2200 0.5 2.6 1.5°
158-6 2000 4000 0.7 3.1 1.5°
185-6 3300 6600 1.3 3.7 1.5°
202-6 4600 9200 1.5 3.8 1°
228-6 7000 14000 2.6 4.2 1°
255-6 10200 20400 4.7 4.7 1°
278-6 14200 28400 7.1 5.2 1°
302-6 20000 40000 9.5 5.7 1°
325-6 25000 50000 13 6.5 1°
345-6 31000 62000 17 6.9 1°
380-6 42300 84600 22 7.6 1°
410-6 57100 114200 28 8.2 1°
440-6 73500 147000 35 8.8 1°
278-8 20000 40000 9.5 3.7 0.5°
302-8 30000 60000 14.9 4 0.5°
325-8 37000 74000 20.4 4.3 0.5°
345-8 46000 92000 25 4.6 0.5°
380-8 63000 126000 34 5 0.5°
410-8 86000 172000 40 5.4 0.5°
440-8 110000 220000 49 5.8 0.5°
Standard structure
Structure
Configuration
SU
1. Composed of a pair of flexible diaphragmand two shaft
sleeves.
2. For compensation to the angular and axial misalignment
only
3. Two SU couplings are often combined with a shaft to
make a floating shaft coupling, and the shaft can be
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hollowed for light weight use
Configuration
SX
1. Two flexible diaphragm accommodates the parallel,
angular, and axial misalignment
2. It is available in 4, 6 and bolts design, and the bore sizes
are up to 13 inches (330mm)
3. Custom spacer lengths and overload bushing are available
Configuration
SXCST
1. The split spacer couplings, where disc packs can be
serviced or removed without moving hubs
2. Connection boots are installed from inside the spacer
outward, pointing towards the hubs
Other structure according to clients request
Configuration DI 1. “Drop-in” spacer assembly coupling; two hubs and a
spacer assembly
2. Hubs are piloted ensures proper centering, as an anti-fail
feature
3. Meets the API-610 balance and anti-fail requirements
4. Over sized hubs available, and allows for the use of
smaller coupling where applicable
Configuration
SXC
1. Close coupled variation of the SX type coupling
2. Used with one or both hubs turned outward for different
shaft separations
Configuration
SXCS
1. Split spacer couplings, where disc packs can be serviced
or removed without moving hubs
2. SXCS type connection bolts are installed from the end
of the hubs inward, pointing towards the spacer
Configuration
SX6C-composite
disc coupling
1. Lightweight composite material ensures strength and
endurance
2. Stainless steel hubs protect against aggressive
environments
3. Theoretical infinite fatigue life
Model selection steps
1. Select the coupling type
2. Select the driven machine service factor SFA from table 1 and for the driving machine SFD from table 2. The
summation of the service factors SFA and SFD are SF.
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3. Calculate the selection torque by the formula:
TKNerf(Nm): minimum required selection torque
PAN(KW): nominal input power at operation speed
nAn(1/min): operating speed
4. The coupling selected must have an equal or greater rated torque capability than the selection torque calculated in
step 3. Check the peak or starting torque capability of the selected coupling. For system where frequently utilized the
peak torque of the power source, verify that magnitude of the peak torque does not exceed the rated nominal torque of
the selected coupling.
The nominal torque mentioned in the catalogs refer to a hub with cylindrical bore and key-way. For other shaft hub
joint, please contact us.
5. Check the maximum hub bores, speed, so as to ensure if it could transmit required torque.
6. Check if the axial, angular and radial misalignment meets the permissible value in this book. The permissible vale
of the axial misalignment and torque are obtained by the angular misalignment of figure 1 and figure 2.
It is suggested to make the misalignment within 20% of the permissible misalignment.
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angular and radial misalignment axial misalignment
Driven machine service factor SFA
Blowers, fans 1.0 Frequency converters 1.5 Rolling mills
Centrifugal 1.25 Welding generators 2.0 Billet shears
Turbo blowers 1.5 Machine tools Gold rolling mills 2.0
Forced draught fans 1.5 Main drives 2.0 Continuous casting plants 2.5
Induc. Draught 2.0 Auxiliary and transverse drives 1.5 Cooling beds 1.5
Induc. Draught without control
2.0
Metal work Cropping shears 2.0
Cooling towers 2.0 Presses/Hammers 2.0 Chain transfers 1.5
Chemical industry Straighteners 2.0 Descaling machines 2.0
Agitators (thin liquid) 1.0 Bending machines/shears 1.5 Heavy and medium duty mills 3.0
Agitators (viscous liquid) 1.5 Punching machines 2.0 Ingot and blooming mills 2.5
Centrifuges (light) 1.25 Marine applications 2.5 Ingot handling machinery 2.5
Centrifuges (heavy) 1.75 Mining and stones Intot pusher 2.5
Mixers 1.75 Crushers, mills 2.5 Manipulators 2.0
compressors Mine ventilators 2.0 Plate shears 2.0
Centrifugal 1.0 Vibrators 1.5 Roller adjustment drives 1.5
Lobe/rotary 1.5 Oil industry Roller straighteners 1.5
Turbo compressors Pipeline pumps 1.5 Roller tables(heavy) 2.5
Reciprocating air compressor Rotary drilling equipment 2.0 Roller tables(light) 1.5
1 to 3 cylinders 3.0 Paper industry Sheet mills 2.5
4 or more cylinders 1.75 Calendars 2.0 Trimming shears 1.5
Conveyor, hoists, elevators Wet presses 2.0 Tube and welding machines 2.0
conveyors Drying cylinders 2.25 Winding machines 1.5
Screw/apron/belt/chain 1.25 Pulpers 2.0 Wire drawing benches 1.5
Bucket/rotary/lifts 1.5 Pulp grinders 2.0 Rubber industry
Reciprocating 3.0 Suction rolls 2.0 Extruder 1.75
hoists Presses 2.0 Calendar 2.0
Medium duty 2.5 Reels, agitators 2.0 Mixing mill/refiner/crusher 2.5
Heavy duty 3.0 Food industry Steel plants
Elevators: centrifugal and
gravity disch 1.25
Calendars, crushers, mixers 1.75 Blast furnace blowers 1.5
Dredgers 2.0 pumps Converters 2.5
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Food industry Centrifugal, general feed or boiler
feed 1.0
Inclined blast furnace elevators
2.0
Packing machines and fillers
1.25
Centrifugal, slurry 1.5 Crushers 2.0
Kneading machines 1.5 Centrifugal, dredge 2.0 Steel plants
Cane crushers, cane cutters 1.5 Rotary/gear/lobe or vane 1.5 Printing and drying machines 1.5
Can mills 2.0 Reciprocating pumps Tanning vats, calenders, looms 1.5
Sugar beet washing machines
1.5
1 cylinder 3.0 Water and waste industry
Sugar beet cutters 1.5 2 cylinders, single acting 2.0 Aerators, screw pumps, screens
1.5
generators 2 cylinders, double acting 1.75 Wood working machinery
Even 1.0 3 cylinders or more 1.5 Trimmers, barkers, saws, planes
1.5
Fig.2 Service factor for driving equipment
Driven machine service factor SFD table 2
Driving equipment SFD 6 1.0 Variable speed motors 0.8
Multi-cylinder engine 4 or 5 1.5 Electric motors and turbines 0
8 or more 0.5 Less than 4 ( refer to us)
SU type
diaphragm
Sleeve Hub
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Size
Rated
torque
Peak
torque
Maximum rotation
rate
Weight④Moment of
inertia⑤
Permissible
peak axial
disalignment⑥
Permissible
peak
angular
disalignmen
t⑦⑧⑨
d1/d2
maximum
diameter of
hole③
L P L1/L2 A BWithout
dynamic
balance①
with
dynamic
balance②
Nm Tkmax
Nm l/min l/min Kg Kg*m2 mm (°) mm mm mm mm mm mm
90-6 240 480 9100 22700 1.4 0.001 0.75 1.5° 38 88 7.5 40 90 58
110-6 575 150 7200 18000 2.3 0.001 1 1.5° 46 108 8.4 50 110 65
132-6 1100 2200 5840 14600 3.8 0.001 1.3 1.5° 60 128 8.4 60 132 84
158-6 2000 4000 4920 12300 6.4 0.001 1.5 1.5° 70 151 11.2 70 158 98
185-6 3300 6600 4200 10500 9.9 0.001 1.8 1.5° 80 174 14 80 185 112
202-6 4600 9200 3840 9600 13.5 0.001 1.9 1° 90 196 15.5 90 202 125
228-6 7000 14000 3400 8500 19 0.001 2.1 1° 100 218 17.5 100 228 140
255-6 10200 20400 3080 7700 29 0.001 2.3 1° 110 251 20.5 115 255 155
278-6 14200 28400 2800 7000 37 0.001 2.6 1° 124 271 21.2 125 278 174
302-6 20000 40000 2560 6400 49 0.001 2.8 1° 135 294 24.4 135 302 190
325-6 25000 50000 2400 6000 60.5 0.001 3.2 1° 145 316 26 145 325 205
345-6 31000 62000 2200 5500 73 0.001 3.4 1° 155 338 28.2 155 345 217
380-6 42300 84600 2040 5100 96 0.001 3.8 1° 170 372 32 170 380 238
410-6 57100 114200 1880 4700 124 0.001 4.1 1° 180 403 33.2 185 410 255
440-6 73500 147000 1740 4350 151 0.001 4.4 1° 195 426 36.4 195 440 273
1. Balanced as manufactured; meet the requirements in line with AGMA 9000-C90, class 9.
2. Balanced, meets the requirements according to AGMA 9000-C90 class 10.
3. The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bore types, please
contact our technical support.
4. The weight is given for a complete coupling with maximum bores.
5. The moment of inertia is given for a complete coupling with maximum bores.
6. The axial misalignment is provided for coupling with one disc pack
7. The angular misalignment is provided per single disc pack.
8. There is no parallel misalignment for SU type.
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SX-6 type
Specification
Size
Normina
l torque
Rated
torque
Maximum rotation
rate
weight④Moment of
intertia⑤
Permissible
Axial
Misaligment
⑥
Permissible
Axial
Misaligmen
t ⑦⑧
Max.Bore
③ L Z P L1/L2 S⑨ A BWithout
dynamic
balance①
with
dynamic
balance②
Nm Tkmax
Nm l/min l/min Kg Kg*m2 mm (°) mm mm mm mm mm mm mm mm
90-6 240 480 9100 22700 2.1 0.002 1.5 1.5° 38 134 45 7.5 40 60 90 58
110-6 575 150 7200 18000 2.1 0.004 2.1 1.5° 46 189 72 8.4 50 89 110 65
132-6 1100 2200 5840 14600 2.1 0.012 2.6 1.5° 60 228 91 8.4 60 108 132 84
158-6 2000 4000 4920 12300 2.1 0.025 3.1 1.5° 70 264 102 11.2 70 124 158 98
185-6 3300 6600 4200 10500 2.1 0.063 3.7 1.5° 80 300 112 14 80 140 185 112
202-6 4600 9200 3840 9600 2.1 0.11 3.8 1° 90 339 128 15.5 90 159 202 125
228-6 7000 14000 3400 8500 2.1 0.2 4.2 1° 100 375 140 17.5 100 175 228 140
255-6 10200 20400 3080 7700 2.1 0.32 4.7 1° 110 427 156 20.5 115 197 255 155
278-6 14200 28400 2800 7000 2.1 0.56 5.2 1° 124 469 177 21.2 125 219 278 174
302-6 20000 40000 2560 6400 2.1 0.86 5.7 1° 135 505 186 24.4 135 235 302 190
325-6 25000 50000 2400 6000 2.1 1.17 6.5 1° 145 544 202 26 145 254 325 205
345-6 31000 62000 2200 5500 2.1 1.63 6.9 1° 155 580 214 28.2 155 270 345 217
380-6 42300 84600 2040 5100 2.1 2.64 7.6 1° 170 637 233 32 170 297 380 238
410-6 57100 114200 1880 4700 2.1 4.04 8.2 1° 180 690 254 33.2 185 321 410 255
440-6 73500 147000 1740 4350 2.1 5.45 8.8 1° 195 725 262 36.4 195 335 440 273
Intermediates Diaphragm
Sleeve
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1. Balanced as manufactured; meet the requirements in line with AGMA 9000-C90 class 9.
2. Balanced, meet the requirements according to AGMA class 10.
3. The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bore types, please
contact our technical support.
4. The weight is given for a complete coupling with maximum bores.
5. The moment of inertia is given for a complete coupling with maximum bores.
6. The axial misalignment is provided for coupling with one disc pack.
7. The angular misalignment is provided per single disc pack.
SX-8 type
Intermediates Diaphragm
Sleeve Hub
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Size
Rated
torque
Peak
Torque
Maximum rotation
rate
weigh
t④
Moment of
intertia⑤
Permissibl
e Axial
Misaligme
nt⑥
Permiss
ible
Axial
Misalig
ment
⑦⑧
Max.Bore
③ L Z P L1/L2 S⑨ A B
Without
dynami
c
balance
①
With
dynamic
balance②
Nm Tkmax
Nm l/min l/min Kg Kg*m2 mm (°) mm mm mm mm mm mm mm mm
278-8 20000 40000 2800 7000 59 0.573 3.7 0.5° 124 469 177 21.2 125 219 278 174
302-8 30000 60000 2560 6400 77 0.878 4 0.5° 135 505 186 24.4 135 235 302 190
325-8 37000 74000 2400 6000 92 1.199 4.3 0.5° 145 544 202 26 145 254 325 205
345-8 46000 92000 2200 5500 112 1.66 4.6 0.5° 155 580 214 28.2 155 270 345 217
380-8 63000 126000 2040 5100 150 2.715 5 0.5° 170 637 233 32 170 297 380 238
410-8 86000 172000 1880 4700 195 4.11 5.4 0.5° 180 690 254 33.2 185 321 410 255
440-8 110000 220000 1740 4350 230 5.54 5.8 0.5° 195 725 262 36.4 195 335 440 273
SXCST-6 type
Intermediates
axial direction
Sleeve Diaphragm
Sleeve Hub
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Specification
Size
Rated
torqu
e
Peak
Torque
Max Speed
weight④
Mom
ent of
intert
ia⑤
Permissibl
e Axial
Misaligme
nt⑥
Permissible
Axial
Misaligme
nt ⑦⑧
Max.
Bore
③
L LF P Z L1/L
2 S⑨ M A B F
Without
dynami
c
balance
①
with
dynami
c
balance
②
Nm Tkmax
Nm l/min l/min Kg
Kg*m
2 mm (°) mm mm mm mm mm mm mm mm mm mm mm
90-6 240 480 9100 22700 3.1 0.003 1.5 1.5° 31 99.6 91.4 7.5 46.5 40 11.6 45 89.9 42.4 94
110-6 575 150 7200 18000 5.9 0.009 2.1 1.5° 39 128.5 117.3 8.4 57.5 50 17.2 45 110 54.1 121.2
132-6 1100 2200 5840 14600 9.4 0.019 2.6 1.5° 50 140.7 129.7 8.4 69.9 60 9.7 45 132.1 70.9 138.9
158-6 2000 4000 4920 12300 16.3 0.047 3.1 1.5° 60 167 152.9 11.2 76.7 70 12.7 55 158 84.1 165.1
185-6 3300 6600 4200 10500 25.5 0.101 3.7 1.5° 68 207.2 191.2 14 98.5 80 31.2 65 184.9 95 193
202-6 4600 9200 3840 9600 35 0.165 3.8 1° 75 222.5 204.7 15.5 101.9 90 25.4 75 201.9 108 210.1
228-6 7000 14000 3400 8500 52.7 0.324 4.2 1° 85 255.6 235.7 17.5 118.9 100 35.6 85 228.1 122.9 236
255-6 10200 20400 3080 7700 77.7 0.605 4.7 1° 95 312.2 286.3 20.5 141.5 115 56.6 100 255 134.6 262.9
278-6 14200 28400 2800 7000 95.9 0.864 5.2 1° 105 312.7 286.8 21.2 140.5 125 37.3 105 278.1 152.1 286
302-6 20000 40000 2560 6400 127.5 1.38 5.7 1° 115 353.8 325.6 24.4 162.6 135 55.6 115 301.8 164.8 309.9
325-6 25000 50000 2400 6000 138.3 1.612 6.5 1° 125 346 318 26 222 145 28 115 325 14 333
345-6 31000 62000 2200 5500 168.7 2.231 6.9 1° 130 370 340 28.2 235.6 155 30 125 345 186 345
380-6 42300 84600 2040 5100 232.4 3.801 7.6 1° 145 408 374 32 256 170 34 140 380 204 390
410-6 57100 114200 1880 4700 297.9 5.709 8.2 1° 160 443 405 33.2 278.6 185 35 150 410 232 410
440-6 73500 147000 1740 4350 355.4 7.761 8.8 1° 165 470 428 36.4 289.2 195 38 165 440 233 440
1. Balanced as manufactured; meet the requirements in line with AGMA 9000-C90 class 9.
2. Balanced, meet the requirements according to AGMA 9000-C90 class 10.
3. The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bores, please
contact our technical support.
4. The weight is given for a complete coupling with maximum bores.
5. The moment of inertia is given for a complete coupling with maximum bores.
6. The axial misalignment is provided for coupling with one disc pack.
7. The angular misalignment is provided per single disc pack.
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SXFA flange type SX with SLD shaft locking device type
SXV type for vertical mounting DIEI electrical insulation type
DISP with safety pin type SXLEF type for axial shift limited
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R-VQG Disc coupling standard
Technical data
Size Rated
torque
Peak
Torque
Max
Speed
Moment of
intertia
Permissible
Axial
Misaligment⑥
Permissible Axial
Misaligment ⑦⑧
Max.
BoreL P Z L1/L2 S M A B
R-VQG Nm Tkmax
Nm min-1 Kg*m2 Δka(mm) Δkw(°) mm mm mm mm mm mm mm mm mm
53-6 55 100 10000 0.184
0.8 2 20 79
6.9 16.2
24.5 30
M5x24.5 53 30 0.312 90 25.2 39
72-6 125 225 8400
0.786
1 2 30
109
7.2
15.6
39.5
30
M5x24.5 72 42 1.518 139 45.6 60
1.915 179 85.6 100
2.313 219 125.6 140
89-6 250 450 6800
3.01
1.2 2 40
127
8.5
20
45
37
M6x31.5 89 55
5.542 160 53 70
5.785 170 63 80
6.273 190 83 100
7.248 230 123 140
118-6 570 1000 5400
12.577
1.6 2 55
156
10.1
25.8
55
46
M8x40 118 76 20.043 210 79.8 100
23.008 250 119.8 140
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25.973 290 159.8 180
142-6 1075 1900 4600
29.206
2 2 65
175
11.7
31.6
60
55
M10x47 142 90 46.664 220 76.6 100
53.041 260 116.6 140
59.419 300 156.6 180
168-6 1900 3400 3800
107.564
2.4 2 80
250
12.7
74.6
75
100
M12x55 168 110120.418 290 114.6 140
133.271 330 154.6 180
200-6 2800 5000 3400
163.536
2.8 2 100
251
14.6
41.8
90
71
M14x64 200 132262.721 320 110.8 140
287.783 360 150.8 180
238-6 5500 9900 3000
483
4 2 115
251
20.8
51.4
125
93
M16x80 238 162621.69 320 98.4 140
675.22 360 138.4 180
Other structure for R-VQG Disc coupling
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客户名称(Client Name):_____________ 联系人(Contact):___________________
电话(Tel): _______________________ 邮箱(Email):___________________
1.驱动类型(电机、内燃机、减速机等):_______________________________________
Driver Type ( Motor, internal combustion engine,reducer etc...)
内燃机类型( Type of internal combustion engine)
汽油(gasoline)、柴油(diesel)、天然气等(natural gas):_________
汽缸数(Number of cylinders )__________________
2. 驱动功率(driving power):_______________
3. 驱动转速或减速机输出转速(Driving speed or reducer’s output speed):_____________
应用使用系数(application usage coefficient):____________________
选型扭矩(selected torque)= kw * 9550*使用系数(use-coefficient)= Nm
RPM
4.驱动轴轴径(Actuating shaft diameter):_________
键槽尺寸(Keyway size) 宽(width)_________ 高(height)_________
要求: 间隙配合,过盈配合,涨套锁紧装置,固定螺丝 (Requirement: clearance fit, interference fit, locking
assemblies equipment,set screws)
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5..驱动轴有效长度(Actuating shaft effective length):_________(从轴端至轴的台阶 From axle head to axis
sidesteps)
6.轴间距(BSE)(Distance between axles):_____________________________
7.从动设备类型(Driven equipment type):___________________________
8.从动轴轴径和键槽尺寸(Driven shaft diameter and keyway dimension) :
宽(width)________ 高(height)________
要求: 间隙配合, 过盈配合, 涨套锁紧装置,固定螺丝
Requirement: (clearance fit, interference fit, locking assemblies equipment,set screws)
9.从动轴有效长度(Driven shaft effective length):___________________ (从轴端至轴的台阶 From axle head to
axis sidesteps)
10.总安装长度(Total installation length):___________________(告知所有障碍物、墙、梁、防护罩、管路等 All
obstacles include walls,bridges, protective covers, pipelines etc should be informed.)
11.锥轴信息(cone axis info):
最小或最大的锥轴直径(Minium or maximal Cone shaft diameter):
锥轴长度( Cone axis length):_______________ T(锥度 Taper):________________
间隙或轴套悬臂量(Clearance or axle sleeve cantilever length):_____________________
锁紧螺母宽度( Locknut width):________ 锁紧螺母规格(Locknut specification):_______
螺纹规格(Thread specification):________ 螺纹长度(Thread length):__________
弹簧垫圈直径(如使用)( Spring washer diameter ( if applicable)): ____________
弹簧垫圈宽度(Spring washer width):______________________