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SKF bearing radial clearance measure package will not be easy, measuring the ring and rolling element itself and its contact elastic deformation, deformation is caused by multiple factors of measurement error, it with the measuring force, contact, and scroll positions are concerned.
SKF bearing rotational flexibility in horizontal position checked, usually the inner ring fixed (or handheld inner ring), hand-turn the outer ring, check for abnormal noise bearing rotates and blocking. In General, the bearing spins the duration of long, slow stop, flexibility is good. In contrast, rotation time is short, stop suddenly, flexibility would be bad. Owing to different bearing type and size, should also have different requirements for their rotation flexibility. Such as single row centripetal ball bearing, and single row centripetal thrust ball bearing, due to scroll body and rings Zhijian of contact area small, these bearing rotating Shi on comparison brisk, and double column centripetal spherical bearing and thrust roll child bearing, due to scroll body and roll road of contact area larger, patrons ring of weight and smaller, in check its rotating flexibility Shi, although plus must load, but its brisk degree still than single row centripetal ball bearing. Extra-SKF bearing, when you rotate it, is not stuck, and no check for rotating sound General.
For bearings with a tapered bore, supplementary check rotation of the SKF bearing flexibility available following method, do the following:
Bearings with a tapered bore onto the mandrel until a certain radial preload, in this pre-load, when a ring turning scroll body should be turned. If rolling slide instead of turning, then the ring geometry defects excessive or uneven rolling body size, SKF bearings rotate less flexibility.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7932CDB NSK | 160 | 220 | 28 |
| 7330BDB NSK | 150 | 320 | 65 |