Do bearings need preload?

It’s important to know that a preload is required.

Why is wheel bearing preload important?

Preload is used to help the bearing roll smoothly down the road.

What is the purpose of preload?

Reducing runout of shaft is one way to improve running accuracy.

When should you preload a bearing?

If a bearing has radial play, load is critical in high-precision and high-speed applications. One bearing race can be moved relative to the other.

How is preload adjusted?

Individual adjustment and collective adjustment are the two main ways to adjust preload.

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