Torque
Starting torque and running torque are extremely important in applications such as gyro gimbals, low power consumption motors and precision positioning devices. In such applications the total system should be evaluated in the design phase for torque input versus torque reflected by the various driven components. In many cases, bearing design and manufacture can be modified to reduce torque.
| NHBB Basic Size |
Test Load (Thrust) grams |
Maximum Starting Torque milligram – millimeters |
||
|---|---|---|---|---|
| Radial Play | ||||
| Tight Fit .0001" –.0003" |
Normal Fit .0002" –.0005" |
Loose Fit .0005" –.0008" |
||
| SSRI-2 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-2 1/2 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-3 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-4 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-5 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-418 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-518 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-618 | 75 | 2,000 | 1,600 | 1,500 |
| SSR-2 | 400 | 5,000 | 4,500 | 4,200 |
| SSR-2A | 400 | 5,000 | 4,500 | 4,200 |
| SSRI-5532 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-5632 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-6632 | 75 | 1,800 | 1,500 | 1,400 |
| SSR-3 | 400 | 6,500 | 5,500 | 5,000 |
| SSRI-614 | 75 | 1,800 | 1,500 | 1,400 |
| SSRI-814 | 400 | 6,000 | 5,200 | 4,800 |
| SSR-4 | 400 | 7,000 | 6,500 | 5,500 |
| SSRI-1214 | 400 | 8,000 | 7,000 | 6,500 |
| SSRI-1438 | 400 | 11,000 | 9,500 | 9,000 |