Deep Groove Ball Bearings SKF 634

The SKF 634 single-row deep-groove ball bearing features compact dimensions of 4 × 16 × 5 mm for precise shaft support in mechanical engineering and equipment manufacturing.

The 634 deep-groove ball bearing is a compact miniature rolling bearing for applications with limited installation space. With a bore of 4 mm, an outside diameter of 16 mm and a width of 5 mm, the design is primarily designed to accommodate radial forces and moderate axial loads. The rings and rolling elements are made of standard bearing steel 100Cr6. A sturdy sheet steel cage guides the balls evenly along the raceways and ensures smooth running.

What is the SKF 634 deep groove ball bearing suitable for?

Design engineers primarily use this miniature bearing in compact mechanical assemblies and precision mechanical mountings. As it is manufactured to tolerance class P0 (standard tolerance or ABEC 1), this design is suitable for standard industrial manufacturing requirements. The component covers an operating temperature range of –20 to +120 degrees Celsius. As the cylindrical outer ring is manufactured without a groove or flange, the bearing seat can be flexibly fitted into smooth housing bores.

What operating parameters must be taken into account for the open bearing 634?

As an open variant, the bearing has no integrated cover or sealing washers. This design allows external lubricant, such as oil or grease, to circulate freely directly onto the contact surfaces. At the same time, the design requires a clean installation environment or external housing seals to prevent dirt particles and moisture from reaching the rolling elements. Manufacture with standard radial bearing clearance ensures a balanced clearance between the rolling elements and raceways at normal operating temperatures.