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TIMKEN bearings of the speed limit is the frictional heating does not cause burns and continuous rotation speed threshold. Therefore, bearing limit speed depends on bearing type, size and accuracy as well as the quantity and quality of lubrication, lubricants, cage and type of material, loading conditions, among other factors.
Speed main bearing TIMKEN bearings within the limits of the temperature rise caused by frictional heating, but after the speed exceeds a certain threshold, bearings will burn and not continue to rotate.
Measurement considerations for TIMKEN bearing radial clearance:
(1) as far as possible using special instruments and measurements;
(2) using the hand bolus injection method measurement requirements of measuring higher measurement skills. This method of measurement error is large, especially when clearance of marginalized, prone to error, in which case the instruments shall prevail;
(3) the examiner measured should be standard operation, rolling past on the roller from the examiner shall be used methods of measurement;
(4) in the measurement process should guarantee the ball falling into the ditch; closed-TIMKEN bearing in front of the closed measurements; when a Dutch instrument, measuring value by subtracting the load caused by increased clearance.
(5) for multiple-row bearings requiring clearance qualified in each column, taking the arithmetic average of the clearance as the TIMKEN bearing radial clearance.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 241/500CAE4 NSK | 500 | 830 | 325 |
| 231/500CAE4 NSK | 500 | 830 | 264 |