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FREQUENTLY ASKED QUESTIONS

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How to Find Bearing Numbers by Size?

Ball and Roller Bearings are classified as Antifriction bearings as they rely on a rolling element between two surfaces to reduce friction.

Where can I buy and order high-precision ball bearings?

As a rule as long as the manufacturer is recognized as a top manufacturer you can with great confidence specify and buy from any of them. However, like a lot of things the devil is in the details and you would be prudent to look exactly at what manufacturing processes and components are used based on the level of sophistication for your application.

How do I compare top brands of ball bearings?

The first thing in comparing brands is to identify what areas you want to compare. Quality bearing manufacturers meet international standards. It is easy to identify brands part numbers as they are universally coded however there are differences in manufacturing components and processes.

What are the basic types of bearings?

Bearings have evolved into three basic types:
Plain,
Ball,
Roller.
Plain Sleeve Bearings referred to as Friction bearings are the oldest known to exist. Sleeve bearings can be manufactured from bronze, metallic alloys, sintered bronze metals, nylons, ceramic and other materials.
Ball and Roller Bearings are classified as Antifriction bearings as they rely on a rolling element between two surfaces to reduce friction.
Antifriction bearings consist of an inner and outer ring and rolling element. In theory balls are point contact and rollers are line contact.

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