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Crane Duty
Gear Boxes
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Features |
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Housings are fabricated
from steel plates, stress relieved and precision
machines, without sacrificing rigidity. Precision
boring ensured parallelism. |
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Shaft Pinions of Alloy
/ Carbon Steel, duly heat treated and precision
cut, ensuring maximum tooth contact. |
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Gears of Carbon Steel,
duly heat treated where required and precision cut. |
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Antifrication bearings
of ample capacity to ensure prolonged accuracy and
long life. |
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Superior Oil seals
to ensure freedom from oil leakage. |
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Ample capacity oil
reservoir to ensure high thermal rating. |
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Efficiency: Precision
machining all along to ensure high operational efficiency,
i.e. 98% per stage. |
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Reduction ratios:
maximum 150: 1 available for various horse powers
in class I, II, III and IC duty. |
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For Hoist, Geared
output shaft with suitable internal teeth ring also
available. |
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For Cross Travel
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For Cross Travel
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For Hoist
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For Long Travel
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| Two
Stage Vertical |
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Three Stage Vertical |
| Size |
250 VCT
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300 VCT
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350 VCT
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400 VCT
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| Ratio |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
| 15.75 |
6.4 |
5.0 |
8.0 |
6.3 |
14.7 |
11.2 |
21.0 |
16.2 |
| 20.50 |
5.8 |
4.3 |
7.3 |
5.4 |
11.9 |
9.4 |
18.6 |
15.0 |
| 23.34 |
5.0 |
3.6 |
6.3 |
4.5 |
10.6 |
8.0 |
16.8 |
13.2 |
| 26.91 |
4.3 |
3.3 |
5.4 |
4.1 |
9.3 |
6.9 |
15.2 |
11.9 |
| 31.50 |
3.6 |
2.3 |
4.5 |
3.6 |
7.9 |
6.0 |
13.2 |
10.2 |
| 36.86 |
3.2 |
2.5 |
4.0 |
3.1 |
7.2 |
5.3 |
12.1 |
9.5 |
| 40.17 |
2.9 |
2.1 |
3.65 |
2.6 |
6.6 |
4.6 |
11.1 |
8.9 |
| 43.76 |
2.5 |
1.8 |
3.1 |
2.2 |
6.0 |
4.3 |
10.4 |
8.1 |
| 48.57 |
2.1 |
1.4 |
2.6 |
1.7 |
5.2 |
3.9 |
- |
- |
| 52.86 |
2.0 |
1.3 |
2.5 |
1.6 |
4.8 |
3.6 |
- |
- |
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| Size |
400 VCT
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| Ratio |
6 P |
8 P |
| 48.57 |
7.5 |
5.0 |
| 52.86 |
6.5 |
4.4 |
| 63.00 |
5.5 |
3.8 |
| 80.00 |
4.8 |
3.2 |
| 96.00 |
3.5 |
2.5 |
| 100.00 |
2.8 |
2.0 |
| - |
- |
- |
| - |
- |
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| - |
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Two Stage
Horizontal |
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| Size |
250 HN & VN
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300 HN
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350 HN
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400 HN
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500 HN
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550 HN
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650 HN
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| Ratio |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
| 8.23 |
17.5 |
12.8 |
19.7 |
14.4 |
40.0 |
30.6 |
55.0 |
43.0 |
130.0 |
105.0 |
162.0 |
131.0 |
255.0 |
205.0 |
| 10.35 |
14.0 |
10.6 |
15.7 |
11.9 |
33.0 |
25.5 |
46.0 |
38.0 |
110.0 |
89.0 |
137.0 |
111.0 |
212.0 |
174.0 |
| 12.64 |
11.8 |
9.5 |
13.3 |
10.7 |
27.5 |
22.5 |
40.0 |
32.0 |
95.0 |
73.5 |
119.0 |
91.0 |
183.0 |
148.5 |
| 15.75 |
9.6 |
7.5 |
10.8 |
8.4 |
23.5 |
18.0 |
35.0 |
27.0 |
78.0 |
61.5 |
97.0 |
76.0 |
153.0 |
123.0 |
| 20.50 |
8.6 |
6.5 |
9.7 |
7.3 |
19.0 |
15.0 |
31.0 |
25.0 |
57.0 |
45.0 |
70.0 |
56.0 |
138.0 |
111.0 |
| 23.34 |
7.5 |
5.4 |
8.4 |
6.1 |
16.9 |
12.8 |
28.0 |
22.0 |
51.0 |
41.5 |
63.0 |
51.0 |
125.0 |
100.0 |
| 26.91 |
6.4 |
4.9 |
7.2 |
5.5 |
14.8 |
11.1 |
25.3 |
19.8 |
47.0 |
38.5 |
58.0 |
48.0 |
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| 31.50 |
5.3 |
4.3 |
5.9 |
4.8 |
12.6 |
9.6 |
22.0 |
17.0 |
43.0 |
35.0 |
53.0 |
43.0 |
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| 36.86 |
4.8 |
3.7 |
5.4 |
4.2 |
11.5 |
8.5 |
20.2 |
15.9 |
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| 40.17 |
4.3 |
3.2 |
4.8 |
3.6 |
10.5 |
7.4 |
18.5 |
14.8 |
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| 43.76 |
3.8 |
2.7 |
4.3 |
3.0 |
9.6 |
6.9 |
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| 48.57 |
3.2 |
2.1 |
3.6 |
2.4 |
8.4 |
6.3 |
- |
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| 52.56 |
3.0 |
2.0 |
3.4 |
2.2 |
7.6 |
5.8 |
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Three Stage
Horizontal |
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| Size |
3510 HN
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4010 HN
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5015 HN
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6020 HN
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7020 HN
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| Ratio |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
6 P |
8 P |
| 40 |
15.0 |
12.0 |
20.5 |
16.5 |
42.5 |
33.5 |
80.0 |
62.0 |
122.0 |
93.5 |
| 50 |
12.0 |
10.0 |
17.0 |
13.5 |
35.0 |
28.0 |
67.0 |
52.0 |
102.0 |
78.0 |
| 63 |
10.0 |
8.3 |
14.0 |
11.0 |
29.0 |
23.4 |
56.0 |
43.5 |
83.0 |
63.8 |
| 80 |
8.0 |
6.5 |
11.3 |
9.0 |
23.5 |
19.4 |
45.0 |
36.0 |
67.0 |
51.0 |
| 90 |
7.0 |
5.6 |
10.2 |
8.3 |
20.8 |
17.2 |
40.0 |
31.5 |
61.5 |
47.0 |
| 105 |
6.2 |
5.0 |
9.2 |
7.3 |
19.4 |
15.8 |
35.0 |
28.0 |
56.0 |
42.8 |
| 124 |
5.2 |
4.2 |
8.0 |
6.1 |
15.2 |
13.8 |
31.5 |
24.5 |
44.8 |
34.4 |
| 142 |
4.7 |
3.7 |
6.9 |
5.5 |
13.6 |
11.8 |
27.5 |
21.5 |
40.6 |
31.2 |
| 160 |
4.2 |
3.2 |
5.8 |
4.8 |
12.0 |
10.0 |
24.0 |
19.0 |
36.3 |
28.0 |
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| Note: |
1) 8P=750 RPM
2) 6P=1000 RPM |
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a) All H.P. Ratings
are for Class II duty
b) For Class I, add30% |
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c) For Class III reduce
20%
d) For Class IV, reduce 30% |
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Questionaire
for Ordering a Gearbox |
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| 1. |
Horse Power of drive
& RPM |
| 2. |
Type of drive: motor/turbine/diesel
Engine |
| 3. |
RPM of Input &
Output |
| 4. |
Configuration: horizontal
/ vertical |
| 5. |
End use : Crane /
Machine / Equipment |
| 6. |
Shock loading if any. |
| 7. |
Atmosphere: Dusty
/ Clean / Hot etc. |
| 8. |
Hours of Service |
| 9. |
Extension of input
and output shaft. |
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