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JTEKT Koyo Bearing Literature

Rainbow Precision Products is your authorized distributor for JTEKT - Koyo. We are open to the public and are excited to offer our service to all in need of the finest bearings manufacture in the world today. Please feel free to browse this section see some of the specialty bearings JTEKT - Koyo offer.
Koyo Bearings, a division of JTEKT North America.
JTEKT Corporation, which includes Koyo Bearings as part of its group, has its global headquarters in Osaka, Japan. In North America, JTEKT operates under the name JTEKT North America with regional headquarters located in Greenville, South Carolina.This regional headquarters oversees a network of manufacturing sites,technical centers,and distribution centers across the United States, Canada, and Mexico.
 
Bearings Basics
There are many different types of rolling element bearings. The key in determining a bearing type is the style of the rolling element itself. Although ball bearings are available in different configurations and designs, they are still identified as ball bearings because of the rolling element. Bearings using rollers element can be in various shapes. This section you will find ball type cylindrical roller, needle roller, tapered roller, spherical roller, convex roller,  
Roller bearings will have a line contact area between rollers and rings and will provide heavier load capacities compared to a point contact ball.

There are many different types of rolling element bearings. The key in determining a bearing type is the style of the rolling element itself. Although ball bearings are available in different configurations and designs, they are still identified as ball bearings because of the rolling element. Bearings using rollers element can be in various shapes. This section you will find ball type cylindrical roller, needle roller, tapered roller, spherical roller, convex roller, Roller bearings will have a line contact area between rollers and rings and will provide heavier load capacities compared to a point contact ball.


In addition to the rolling element many bearings consist of an inner ring, outer ring, and retainer or cage to guide and separate the rolling elements. In tapered roller bearings, the ring is normally called the cone, while the outer ring is referred to as the cup. The rolling elements on the rings are called raceways. With ball bearings, since the path is a groove, it is referred to as a raceway groove. In thrust bearings the inner and outer rings are called shaft and housing washers respectively.


The inside diameter of the inner ring is normally referred to as the bore and is mounted on a shaft or spindle. The outside diameter of the outer ring is usually in contact with a housing or hub in most applications. Radial bearings are designed primarily for carrying radial loads. Most radial bearings are designed primarily for carrying radial loads. Most radial bearings can carry some thrust loading with the thrust carrying ability dependent on contact angle and type of rolling element (steeper angle tapered rollers have relatively high thrust capacities). However, except for spherical thrust bearings, which can carry a small amount of radial load, thrust bearings can only carry thrust loads.