worm gear box
TRANSCRIPT
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For Good performance of Gear Box, The right
selection is very important. The Gear Unit Selection
is made by comparing actual transmitted loads
with catalogue ratings are based on standard set of
load conditions, which invariably changes for
different conditions. Therefore service factor must
be used to calculate a theoretical transmitted load
or equivalent load, before comparing the same,
apply the formula :
Equivalent Load = Actual Load x Service Factor
Mechanical ratings measure capacity in terms of
life and / or strength, assuming 10 hours per daycontinuous running under uniform load
conditions, when lubricated with an approved oil
and working at a maximum oil temperature of
100C for normal application lubricant equivalent
to ISO VG 320 should be used.
When a unit transmits less than catalogue rating,
its life is increased.
a service factor from Table of
Mechanical Service Factor ensure selection of a
unit which transmits less than the catalogue
rating, its life is thus increased consistent with the
increased daily running time.
Catalogue ratings allow 100%overload at starting,
braking or momentarily during operation, up to 10
times per day. The unit selected must therefore
have a catalogue rating equal to, or greater than
half the maximum overload.
If the unit is subjected to sustained overloads or to
shock loads, these must be reflected in the chosen
service factor. If overloads can be calculated or
estimated then the actual loads should be used
instead of a factor.
Thermal ratings measure the unit's ability to
dissipate heat. If they are exceeded the lubricant
may overheat and break down, with consequent
life failure.
Both mechanical and thermal ratings are given on
next page. Thermal ratings are effected by
I f the runn ing t im e is more
t han 8 h ou r s per day ,
Mechanical Ratings & Service Factors :
Thermal Ratings and Service Factors :
ambient temperature and not by mechanical
consideration such as increased running time or
shock loads. Catalogue ratings assume 20C
running temperature, the oil temperature then
rising as the unit transmits power and generate
heat.
If the ambient temperature is more than 20 C, a
lower temperature rise is allowed therefore less
power may be transmitted. Similarly in cooler
temperatures the thermal ratings may be
exceeded. When selecting unit use a service factor
from Table of Thermal Service Factor to calculate
equivalent loads.
For unit sizes 40 to 200, the relevant mechanicaland thermal service factors are selected from
tables and whichever is higher is applied to find out
the equivalent output power and output torque.
For unit size 200 to 350, mechanical service factor
should be applied to mechanical ratings and
thermal service factor should be applied to thermal
ratings. Higher of these should be considered for
selection of the unit.
Thermal ratings assume fan cooling which is
standard feature of all Speed Reduction
Units.
For intermittent running with ample cooling timeduring rest periods, thermal ratings may be
exceeded without overheating and since fan it
ineffective, it can usually be removed.
It is recommended that as much as possible of the
following information be given in the enquiry or
order so that a check can be made and advice given
on the most suitable size of Worm Speed
Reducer for any application.
1. Type of prime mover.
2. Horse-power of prime mover.
3. Output torque required from driven member.4. Input speed of gear unit.
5. Output speed of gear unit.6. Configuration of drive required and shaft
disposition.7. Total daily hours of running. If running is
intermittent, details of duty cycle should be
given.
AGNEE
AGNEE
Enquiries
Selection of Gear Box
Worm Speed Reducers
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NUMBER 3 FOOT
50 127
85
60
75
194
146
173
40 102
19172
116
84
102
298
220
260
65 15211
19
17
21
14 159
260
187
226
130
49
60
67
54
38
38
49
48
41
32
SIZE B4 J3 M2P1 N2L W2
MOUNTING DIMENSIONS - NUMBER 1 FOOT
50 69
85
60
75
109
84
95
SIZE
40 60
B1
7682
135
100
120
119
87
106
B 2
66 58
K
37
64
51
76
43
R2
57
96
68
82
R1
49
J
14
21
22
17
14
LE1
91
138
12 4
103
70
M N
89
111
130
154
175
O
39
50
60
76
85
W
22
29
32
35
38
Q
38
49
54
60
67 12
10
10
8
8 8
8
10
10
12
MOUNTING DIMENSIONS -NUMBER 2 FOOT
119
106
87
76
58
B3
114
82
98
63
69
95
114
128
65
82
J1 K R1
89
71
124
103
138
17
21
22
L
14
14
M1
267
311
356
N1
191
229
57
65
73
40
51
Q1 R2
59
65
73
W1
46
52
J2
100
120
139
161
188
P
47
60
71
89
100
188
225
260
130
158
P1O
60
76
85
39
50
8
8
10
10
12 12
10
10
8
8
SHAFT DIMENSIONS
B4
P1
M2
W2
J3 J3
W
N2 N2
R2 DiaHols
No. 3 Type of Foot
AGNEE Single Reduction Speed Reducers - Adaptable Type
Dimension Details of Gear Boxes
As Improvements in design are continually being made, this specification is
not to be regarded as binding detail, and dimensions are subject to alteration without notice
L
R
SHAFT HANDING
Sizes of A40 to A85AGNEE AGNEE
O O
J1
K K
M1 M1
Q1 Q1
J2
N1 P1
P
R1 Dia. Hole
R2 dia. Holes
Q Q
K K
M ML
R1 Dia. holes
R2. Dia. Holes
O O
V1 dia.
R Dia Metric
Holes
G
X1FF
H
C
A
B
B2
W W
W1
W
E1 E1
B3 D
V2 dia.
L2
E E X2
J J
N N
B1
Z1
V1
Y1 Y2
Z2
V2
X3 X4
No. 1 Type of Foot is shown below the sketch of Gear box
No. 2 Type of Foot is shown on the left hand side of Gear box sketch
Principal Dimensions (mm)
No. 3 Type of Foot is shown below
Worm Speed Reducers
58.7 13371 4359 111117 8650.850
98
68
81
85
75
60
77.8
90.6
68.3
73.0
85.7
60.3
103
116
84
168
200
140
175
130
154
133
98
11964
76
51
219
15 9
191
49
SIZE
40 50.8
A
41.3
B C
57
D
98
H
89
F
71
E E1
37
G
110
8
10
12
10
R
8
BODY DIMENSIONS
44 28.46.05.025.415.8 545748
67
79
54
25.4
19.0
22.2
57
83
70
38.1
28.5
31.7
98
83
70
79
95
67
6.0
6.0
5.0
8.0
10.0
8.0
25.2
28.4
22.0
35.7
43.1
32.5
X3
3815.8
X1
41
V2
19.0
V1 X2
48
X4
44
Y1
5.0
Y2
5.0
Z1
18.3
Z2
21.5
50
85
75
60
SIZE
40
18.3
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AGNEESingle Reduction Speed Reducers - Horizontal Type
MOUNTING DIMENSIONS
140
502
413
356
298
230
208
179
164
355.6
431.8
304.8
430
350
300
254.0
215.9
190.5
489
394
343
629
441
521
546
483
413
305
254
216
699
495
572
514
425
368
381
298
260
254
184
215
76
64
57
BODY DIMENSIONS
254.0
203.2
125
250
200
150
175 177.8
152.4
100
SIZE A
101.6
127.0
171.5
146.1
146.1
127.0
292
235
210
184
104.0
114.3
B C
137
159
222
378
307
270
305
254
H
194
159
140
151
375
311
298
273
121
133
D
216
248
E
343
425
279
318
311
251
229
200
229
260
GF
159
184
108
215
171
133
152
123
133
165
120
133
101
111
J K
51
76
70
64
L
44
54
M
124
203
171
191
298
260
222
191
178
152
127
89
76
298
260
222
139.7
95.2
114.3
41.3
41.3
34.9
82.5
76.2
63.5
181
149 210
222
162
152
146
89
22.0
19.1
16.0
38.2
32.8
25.4
93.5
85.7
71.5
158.7
130.3
107.9
89
152
140
127
114
102
SHAFT DIMENSIONS
X2
200
171
162
149
127
102
89
76
N
127
137
O
64
70
64
-
-
-
200
102
98
89
P
-
-
Q
76
83
44.5
82.5
69.8
57.1
63.5
50.8
V2
31.8
27.0
23.8
23.8
57.2
44.4
38.1
44.4
R
20.6
20.6
V1
31.8
38.1
76
89
121
86
67
73
X1
143
127
114
114
89
83
83
73
54
73
X3 X4
83
95
16.0
12.0
12.0
10.0
22.0
19.1
16.0
16.0
Y1
8.0
10.0
Y2
10.0
12.0
65.2
50.4
50.4
43.1
93.5
79.3
71.5
65.1
Z1
35.8
43.1
Z2
49.5
56.8
AGNEESingle Reduction Speed Reducers - Vertical Type
MOUNTING DIMENSIONSBODY DIMENSIONS
121
151
140
159
194
216
254
305
133
200
250
300
350
430
150
175
75
100
125
483572355.6 330.2
431.8 406.4 699 546
152.4 209.5
254.0
203.2
304.8
177.8
241.3
279.4
304.8
228.6
101.6
127.0
73.0 110.0
190.5
171.5
273279
425
495
343
318
375
413
311
298
195
229
260
184
216
248
222
305
270
378
307
521
441
629
254
413425 203
241514 502
77
133
124
143
160
149
177
111
200
311
368
251
229
92 115
184
159
197
356
298
254
222
178
152
100
355355 64355
431431 431 76
317
260
203
177
152
139
114
152
317
260
203
177
97
140
114
97
152 38
317
260
203
177
44
51
57
38
139
114
87 20
32
32
SHAFT DIMENSIONS
60
54
73
83
89
83
89
146
152
73
22.2
31.8
44.4
44.4
57.2
63.5
76.2
82.5
362413425
502 502 502
41.3
41.3
184184
311
368
210
238
368
299
238
210
140
165
103
165
140
116
184 23.8
305
273
238
210
31.8
34.9
23.8
27.0
165
140
116 13.5
20.6
20.6
191114.3 149
181139.7 203
70
67
86
121
89
76
124
73
57.138.1
63.5
82.5
69.8
95.2
31.7
44.5
50.838.1
114
127
152
140
171
82
89
102
85.731.819.1210
222 22.3 38.2 93.5
10.0114
162
143
114
127
16.0
16.0
12.0
12.0
70
95
83
6.0
8.0
10.0
43.116.0
22.0
25.4
19.1
16.0
65.2
71.5
50.4
50.4
8.0
10.0
12.0
25.2
35.8
43.1
130.3
158.7
65.2
93.5
107.9
79.3
71.5
35.7
49.5
56.8
SIZE A B C D HGE F G1 J J1 K L X3M N N1 R X1V2V1 X2 X4 Y1 Y2 Z1 Z2
As Improvements in design are continually being made, this specification is not to be regarded as binding detail, and dimensions are subject to alteration without notice
Sizes of V75 to V430AGNEE AGNEE
Principal Dimensions (mm)
L
X 1
C
V1 Dia.
D
E
F
H
M
K
M
K
B
R Dia. Hole
X 2
G 1 G
N 1
J1
N
J
A
V2 Dia.
V 1
Z1
Y 1
InputShaft
X 1
X 3
Output Shaft
X 2
X 4
Z2
Y 2
V 2
SHAFTDETAILS
VU
VD
VUR VUL
VDR VDL
SHAFTHANDING
Worm Speed Reducers
Principal Dimensions (mm)
Q
D
X2
G
O
FX1
Dip Stick
V1 Dia .
K
M
K
M
H
B
O
C
P
A
R dia. Hole
V2 Dia .
J
N N
J
L
E E
Q
SHAFT HANDING
Output ShaftInput Shaft
V2
Y1
V1
X3
X1
V1 Z 1
Y2
V2
X2
X4
Z2
SHAFT DETAILS
Sizes of H100 to H430AGNEE AGNEE
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General
Design Standards
Gear Case
Worm & Worm Wheels
Bearings
AGNEE Worm Speed Reduction Gear Boxes have
liberal ribbing for increasing heat dissipation area,streamlined sump for carrying more oil and fan of
ample size which is effective in both side of
rotation.
Wherever applicable, British as well as Indian
Design standards are used. Worm Shafts conform
to case-hardening Alloy Steels, Worm Wheels
conform to phosphorous - bronze as per BS 1400,
While Gear Case conforms to C.I. Grade 20, IS 210.
Gear Case is of streamlined design, rugged in
construction, made of close grain Cast Iron. It iscompletely air tight, dust proof and capable of
being installed in open without any cover. The
faces and bores are accurately bored and
machined to last precision to ensure perfect
alignment and interchangeability.
The Worm is made of case - hardening / alloy steel,
duly hardened, ground and lapped and is integral
with the shaft. Bearing journals are accurately
ground. Worm Wheels is made of chill cast
phosphorous bronze and tightly fitted with the C.I.
Centres. Worm Wheels teeth are generated on
precision hobbing machines and high accuracyhobs.
The Worm and Worm Wheels are supported on
Extra Heavy Duty Taper roller antifriction bearings
of ample margin of safety to allow adequate
journals as well as thrust loads. Overhung loads
arising out of sprocket or pinion drive are
case and bearing are designed for this duty. In case
of heavy overhung loads, and extra roller bearing
can be provided.
The Worm wheel Shafts are made of high tensile
carbon steel, duty hardened and ground. It is of
large diameter of carry the torsional as well as the
bending loads which may be induced by overhung
drives.
Lubrication of Worm and worm wheels is by splash
of oil from the sump. Thus, no special care is
required except for the occasional oil topping of
the oil to the required level. An oil filler cum
breather plug is provided along with the drain plugand level plug. Oil seals of appropriate size are
provided on all input and output shafts.
For very low input speed of below 50 RPM , and
heavy loads in sizes above 350 mm, forced
lubrication is required.
Air cooling is effected by means of standard
propylene or metal fans which direct air over the
ribbed surface of the case. The fan is designed to
operate in both the direction of rotation and is so
arranged in conjunction with the ribbing of the
case to allow maximum heat dissipation.
All the conponents of the Gear Unit are so
designed that they can withstand100%overload for 15 seconds50%overload for one minute40%overload for 15 minutes
25%overload for 1 hour
Wheel Shafts
Lubrication
Cooling
Overload Ratings
Catalogue ref. no. AEK/CAT/WS/003 : Selection of Worm Gear Boxes
Worm Speed Reducers
AGNEE TRANSMISSIONS (INDIA) PVT. LTD.AN ISO 9001-2000 Company
F-557,Road No. 6, Inderprasth Industrial Area,, Kota-324005, Rajasthan, India.
Tel.:+(91)744 2363799. Fax: +(91)744 2360835.Email: [email protected] Website:www.agneetransmissions.com