Deep Groove Ball Bearings SKF 635 -2Z

The SKF 635-2Z deep groove ball bearing is a compact, single-row miniature rolling bearing measuring 5 × 19 × 6 mm and featuring sheet metal shields on both sides.

The SKF 635-2Z deep groove ball bearing is designed for space-saving bearing arrangements with limited installation space. With an inside diameter of 5 mm, an outside diameter of 19 mm and a width of 6 mm, this single-row rolling bearing primarily withstands radial forces as well as moderate axial forces in both directions. Manufactured from standard roller bearing steel (100Cr6) in the SKF Explorer design, the bearing features a coordinated internal geometry that promotes smooth running during operation.

In which applications is the 635-2Z deep-groove ball bearing used?

Designs with a shaft diameter of 5 mm utilise this compact design primarily for purely radial loads or combined loads. The single-row miniature bearing supports rotating shafts with low frictional resistance and is suitable for compact mechanical assemblies in general mechanical engineering. The integrated sheet steel cage guides the rolling elements and maintains a uniform spacing between them. Thanks to the cylindrical outer ring without a flange or circumferential groove, the bearing can be fitted directly into a housing bore.

What protection do the cover plates on the -2Z variant offer?

The suffix -2Z indicates two sheet steel cover plates fitted on both sides. These non-contact gap seals serve to reduce the ingress of solid dirt particles and foreign matter into the rolling element chamber without increasing the friction torque of the bearing assembly. The component thus retains its smooth running action and supports high speeds. In combination with the standard radial bearing clearance and the standard tolerance class P0 (ABEC 1), the bearing is designed for operation within a temperature range of -20 to +120 degrees Celsius.