| Selection Procedure |
In any engineering application, it is necessary to select the gear box properly for its long and trouble-free operation.
The gear box selection can be done in different ways depending on the available data.
The basic relation between Horse Power and Torque is as under: |
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| Before going to Selection Procedure, we must collect the following details for correctly selecting the gear box model : |
| 1. |
The Application and the Duty Cycle / Working Hours per day. Based on this data, the correct Service Factor can be selected using Table 8. |
| 2. |
Input Speed |
| 3 |
Output Speed or Ratio required. Ratio = Input Speed / Output Speed. |
| 4. |
Input Power or the Required Output Torque. If you know either of these, you can calculate the other using the above formula. If you know both of these, please check that the Torque calculated based on the input HP, matches with the required torque. |
| 5. |
Mounting Position of the Gear Box & Mounting Type eg, Foot / Flange / Agitator etc. |
| 6. |
Ambient Temperature. The thermal rating of all the Models are given in Table 9. If the ambient temperature is above 45 o C C, and if the input power is on the higher side of the allowable limit, please consult us for checking the suitability. |
| 7. |
Type of Input We can provide a free solid input shaft or a hollow input shaft to suit standard IEC frame size B5 Flange motors which can be mounted directly on the gear box. |
| 8. |
Based on the application, decide on the expected working life of the unit using Table 3. This will be required in case of checking the overhang load. |
| 9. |
Type of connection for Input as well as Output Shaft. If the connection is by means of Sprocket, Belt or Pinion, it is necessary to check that the actual overhang load is less than the allowable overhang load. |
