NTN Angular Contact Ball Bearings

In these ball bearings, the direct line that connects the inner ring, balls, and outer ring has a given angle in the radial direction (the contact angle).

This angle is generally designed with three kinds of contact angle. i.e., 15 degree  (C type), 30 degree (A type) & 40 degree (B type)

These bearings can bear axial loads, but because of the contact angle cannot be used singly and must be used in pairs or combinations.

Features

• High Quality Steel  Ultra clean steel to extend bearing life.
• Advanced Grease Technology  Lubricants that can extend grease life and performance.
• High Grade Balls  Quiet and smooth operation even at high speed.
• Super Finished Raceways  Specially honed to minimise noise and improve lubricant distribution and life.
• Contact Angle  Offered in 15, 30 and 40 degree angles.
• Cages  Available in a range of Polyamide, steel and brass cage assemblies.

Duplex angular contact ball bearings are bearings combining two or more angular ball bearings in back-to-back arrangement, face-to-face arrangement, or tandem arrangement.

Face-to-face duplex (DF) or back-to-back duplex (DB) bearings can bear axial loads in both directions. Back-to-back duplex bearings have a higher moment load bearing capacity than face-to-face duplex bearings. Tandem duplex bearings can bear a larger single-direction axial load than single bearings.

Four-point contact ball bearings

These are angular contact ball bearings with the inner ring divided into two. When the outer ring and inner ring are pushed in the radial direction, the balls make contact with the inner ring and outer ring at four points. One bearing is able to bear an axial load from both directions, and can be used in a two-point contact state under a general pure axial load or under a composite load with large axial load.

Double-row angular contact ball bearings

• These have a structure that arranges single row angular contact ball bearings as back-to-back duplex (DB) bearings, uniting both the inner ring and outer ring.
• They are able to bear radial loads and bi-directional axial loads, with ability to bear moment loads as well.
• Both seal-type and shield-type bearings are available, with rated loads differing from open types.