6207 is belong to deep groove ball bearings for high speed or even high speed operation, and very durable, without regular maintenance. This kind of bearing has small friction coefficient, high speed limit, varied size and form.

jtekt KOYO Bearings 6207 Specification :

We can provide 6207 with three type design ,in an open, shielded (ZZ), or sealed (2RS) design.

Open bearings are supplied with a light oil coating and are used in oil bath and oil misting applications.

Sealed bearings are supplied with a contacting lip seal that excels in protecting the bearing from liquids and other foreign contaminants. The inherent design creates friction, drag, and in turn heat; factors that require consideration in high speed applications.

Shielded bearings are provided with non-contacting metal shields that protect against larger particles entering the bearing, but do not protect against liquids. They add no friction during operation and therefore do not generate heat build-up.

KOYO 6207 bearing  is applied to precision instruments, low noise motors, automobiles, motorcycles and general machinery industries. It is the most widely used kind of bearings in machinery industry.