Bearings

Needle Bearings

Technically, needle bearings are roller bearings as well, their full name being “needle roller bearings.” The name “needle” comes from the fact that the roller involved are relatively long and thin. More specifically, the difference between roller and needle bearings is that needle bearings have rollers at least four times as long as they are wide. It is simply a matter of the ratio of diameter to length. Being longer, needle bearings have a greater contact surface with their load. They also have a higher load-bearing capacity than ordinary cylindrical roller bearings, though multi-row versions of the latter can be quite high-capacity. The down side of needle bearings is that they tend to “tire down” and wear out faster than many other bearings will.

What Makes for a Superior Bearing?

Whether you need a ball, roller, needle, or other style of bearing, you want one of high quality. Some of the factors to check include:

  • A high load-bearing capacity
  • A long expected life span
  • Made of durable materials
  • Tight enough to minimise friction
  • Allows some room for play
  • Easy to lubricate
  • Easy to clean
  • Correct size and type for your application
  • From a well-reputed brand

If you need a bearing but are not sure about which one will best suit your needs, you should ask the experts for some assistance. Online companies like Bearing Boys, for example, put up both a large selection and needful explanations for your benefit. Many knowledgeable workers, whom you can easily contact via telephone or Internet, will be more than happy to help you sort through your options till you find the very best one.

Conclusion

Bearings are one of those things that few of us think of until something goes wrong with one. There are many types, sizes, brands, and applications of modern bearings, and modern machines are helpless without them.

 

 

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