Angular Contact Ball B. SKF 7309 BECBM

The SKF 7309 BECBM angular contact ball bearing accommodates combined radial and single-direction axial loads whilst maintaining compact dimensions of 45 × 100 × 25 mm.

The 7309 BECBM angular contact ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6) with a bore of 45 mm, an outer diameter of 100 mm and a width of 25 mm. SKF manufactures this version in the Explorer performance class. By design, the open bearing accommodates radial loads as well as axial forces in one direction. As it has no integrated seals, the component is particularly suitable for oil- or grease-lubricated systems with external housing seals at operating temperatures ranging from –20 to +150 degrees Celsius.

What is the 7309 BECBM angular contact ball bearing suitable for?

This angular contact ball bearing is suitable for bearing arrangements subject to combined radial and single-direction axial loads in rotating shaft systems and industrial drives. If axial forces occur alternately from both directions, fit two bearings facing each other. Thanks to its universal design, mounting in pairs in an O or X configuration results in a small, defined axial clearance. This simplifies installation and promotes even load distribution within the drive train.

What are the advantages of the 40-degree contact angle and the brass cage?

The 40-degree contact angle gives the bearing a high axial load-carrying capacity in the direction of the force. A solid brass cage guides the rolling elements with minimal vibration and withstands demanding lubrication and temperature conditions up to +150 degrees Celsius. Furthermore, the bearing is characterised by enhanced precision: its dimensional accuracy complies with tolerance class P6, whilst its running accuracy is to class P5. For designers and maintenance engineers, this combination means high concentricity with standardised installation dimensions.