preload on a bearing
preload on a bearing
(OP)
Are there any simple calculations to use to figure out what the preload should be an a bearing?
Thanks in advance.
Kyle
Thanks in advance.
Kyle
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RE: preload on a bearing
Ken
RE: preload on a bearing
If you are doing repair, check with the manufacture, or find a similar product with a defined preload. If it is a new product, contact some of the bearing manufactures for help, or post more information here.
RE: preload on a bearing
EdDanzer's comments are all valid.
However, KenBolen's claim that using spacers gives an exact/repeatable preload is not really true in my experience. In practice, it is very easy to compress the spacers, especially if they are long. It is very important to control the force applied to the spacers, whether this is done with a locknut or some other means. The preload can also be heavily influenced by the fit of the bearing races, which varies from bearing to bearing. The majority of the preload often comes from this rather than any axial offset applied, and can often vary by a factor of two or more even if the spacers are all identical. Often, the most challenging thing about rolling element bearing preload is checking what it actually is, rather than deciding how much it should be. However, in many applications it is not super critical.