| Technical Information |
| Service Factor |
| For any application, it is necessary to consider a certain Service Factor while selecting the Gear Box. This is mainly because for any application, in practice, there are many factors which are acting and which we do not consider in theoretical calculations of gear box capacity or required torque etc. The Service Factors are based on the actual experience of years of many. In fact, for various applications, different service factors are recommended. However as a general guideline, select a suitable service factor as per the Table 8 given below. The Service Factor should normally be applied to the actual torque requirement to calculate the minimum required rated torque. The Service Factor should not be applied for selecting the motor power. |
Table 8 |
| Duty |
Type of Load |
Daily Working Hours |
< 0.5 Hr |
0.5 to 3 Hr |
3 to 8 Hr |
8 to 24 Hr |
| Continuous Or Intermittent Service With Less than 10 starts/hr |
Uniform |
0.8 |
0.9 |
1 |
1.25 |
Moderate Shock |
0.9 |
1 |
1.25 |
1.5 |
Heavy Shock |
1 |
1.25 |
1.5 |
1.75 |
| Intermittent Service with 10 or more starts/hr |
Uniform |
0.9 |
1 |
1.25 |
1.5 |
light overloads |
1 |
1.25 |
1.5 |
1.75 |
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