Technical>Bearing internal clearance selection standards
Bearing internal clearance selection standards
Under normal operating conditions (e.g. normal load, fit, speed, temperature, etc.), a standard internal clearance will give a very satisfactory operating clearance. Customers should pay attention when coming across the following conditions.
● Example of selection of clearance other than CN (Normal) clearance
| Service Conditions | Clearance | Application Example(reference) |
| Large interference for heavy or impact load | C3 clearance or larger | Railroad car axle |
|
Inner ring is exposed to high temperature Outer ring is exposed to low temperature |
Traction motor | |
|
When shaft has a large deflation For increasing axial load capacity by increasing contact angle |
Pulp and paper machine dryer For outdoor use in cold area |
|
| Interference is required for both inner and outer rings due to indeterminate heavy impact load | Semi-floating axle of automobile Bearing of railroad car axle for carrying axial load Thrust bearing of axles of rolling machine | |
| When both inner and outer rings are clearance-fitted for controlling vibration and sound | C2 clearance or smaller | Roll neck of rolling machine Small, special electric motors |
