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The damage of the bearing cage
The damage of the bearing retainer phenomenon is not obvious, under normal circumstances it is not easy to judge. Bearing vibration, faster than the requirement of design, wear and tear, foreign body jammed and skew is the main reason for the damage of retainer. As mentioned above to analyze the condition of analysis:
1, vibration
When the bearing under the condition of vibration, bearing internal forces may lead to the emergence of the retainer fatigue cracks. Gradually, the crack will keep rupture. To prevent this phenomenon, can be equipped with special bearing retainer.
2, faster than the design requirements
If the bearing is beyond keeps the speed of material can withstand, inertia force will cause retainer break. Have made for this occasion used high-speed bearing.
3, wear and tear
Improper lubrication or hard foreign bodies will keep bearing wear. Rolling bearing runtime most avoid sliding friction. But the sliding contact between roller and retainer is usually cannot eliminate, so if the poor lubrication, bear the brunt of the retainer is wearing parts. And the retainer is made by the quality of a material soft material, so wear is fairly quickly. Gradually the retainer clearance will make retainer soon burst. When hard diamond grain wear into the bearings, also can have the same situation happen.
4, foreign bodies, jammed
Parts of fracture or particles may get stuck in between roller and retainer. Block a scrolling. It also causes a retainer breakage. Only need to be able to prevent large foreign body into bearing, even if the heavy load, retainer can be safe.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 432215U NTN | 75 | 130 | 74 |
| 4T-430215 NTN | 75 | 130 | 62 |