Angular Contact Ball B. FAG 3315

The 3315 angular contact ball bearing from FAG Wälzlager (75 x 160 x 68.3 mm) accommodates high radial forces as well as axial forces in both directions within a compact installation space.

The double-row angular contact ball bearing 3315 from FAG Wälzlager is designed for applications where combined forces from the radial and axial directions on both sides occur. With its main dimensions of a 75 mm bore, 160 mm outside diameter and 68.3 mm width, the design is functionally equivalent to two single-row angular contact ball bearings, yet requires less axial installation space. Manufactured from standard rolling-element bearing steel 100Cr6, a sheet steel cage guides the two rows of balls within a temperature range of –20 to +150 degrees Celsius.

What is the 3315 double-row angular contact ball bearing suitable for?

This rolling bearing is suitable for designs that must accommodate not only high radial loads but also alternating or bidirectional axial forces. Typical applications include shaft mountings with combined load directions in general mechanical engineering. Thanks to its double-row design, the bearing counteracts tilting moments, which benefits rigid shaft guidance. As this is an open bearing without integrated seals, lubricant can be supplied directly via the surrounding housing structure.

What should be borne in mind with the open design and standard bearing clearance?

The open angular contact ball bearing 3315 has no integrated sealing protection. The installation location therefore requires external sealing of the housing against dirt particles and moisture. This design has a standard radial clearance (tolerance class P0/ABEC 1), which is suited to typical operating temperatures and fit conditions. For applications within the permissible range of -20 to +150 degrees Celsius, the geometry – with no flange or groove on the outer ring – allows for mounting in a cylindrical housing seat.