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By Industry

REPLACEMENT Market

Our advanced technologies are a guarantee of a long lasting performance and high reliability of Koyo products, which is of particular value to the aftermarket user.

Replacement market (automotive and industrial)

Our advanced technologies are a guarantee of a long lasting performance and high reliability of Koyo products, which is of particular value to the aftermarket user. Needless to say, we apply JTEKT elevated level of research and development to serve this market segment as well.

Koyo brand bearings are available via a wide network of distributors in all European countries as well as numerous distributors worldwide. 

Experience and capabilities

Automotive Spare-part products:

  • Suspension and steering column bearings
  • Wheel bearings and Hub Units for European as well as Japanese cars
  • Engine bearings such as idlers and tensioners,
  • Clutch-release bearings and compressor bearings.

 Products for the Industrial Aftermarket:

  • Single Ball Bearings in Popular and Super-popular sizes
  • Spherical Roller Bearings
  • Tapered Roller Bearings (represented by a vast array of metric and inch-types),
  • Ball Bearing Units including special types,
  • Cylindrical, Angular Contact, Self-aligning Rolling Bearings, Needle Roller Bearings and many others.

For the dealer nearest to you, please kindly contact one of our Sales Offices to be found under: Company Network tab or search in our distributor network.

Bearing 3D
FAQ

What is an angular contact ball bearing?

An angular contact ball bearing uses axially asymmetric races. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that on the outer race. Angular contact bearings better support "combined loads" (loading in both the radial and axial directions) and the contact angle of the bearing should be matched to the relative proportions of each. The larger the contact angle (typically in the range 10 to 45 degrees), the higher the axial load supported, but the lower the radial load. In high speed applications, such as turbines, jet engines, and dentistry equipment, the centrifugal forces generated by the balls changes the contact angle at the inner and outer race. Ceramics such as silicon nitride are now regularly used in such applications due to their low density (40% of steel). These materials significantly reduce centrifugal force and function well in high temperature environments. They also tend to wear in a similar way to bearing steel—rather than cracking or shattering like glass or porcelain.

Most bicycles use angular-contact bearings in the headsets because the forces on these bearings are in both the radial and axial direction.

For more information please click here “Products”

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