Deep Groove Ball Bearings SKF 6307

The SKF 6307 deep groove ball bearing, with dimensions of 35x80x21 mm, is an open design suitable for high speeds under combined radial and axial loads.

The single-row deep groove ball bearing 6307 primarily accommodates radial forces and also guides the shaft in both axial directions. This SKF design belongs to the Explorer performance class. The inner ring, outer ring and rolling elements are made of case-hardened standard roller bearing steel (100Cr6). As the bearing is of open design and has no abiding sealing rings, the lubricant from the surrounding structure reaches the raceways unhindered.

What is the 6307 open deep groove ball bearing suitable for?

The open version of the bearing is used in designs where the housing is already externally sealed and lubricants such as oil or grease can circulate freely. Without sealing washers, there are no additional friction losses, meaning the rolling bearing is designed for high speeds. With a bore of 35 mm and an outside diameter of 80 mm, the design accommodates combined forces in compact installation spaces, whilst the open construction allows for continuous relubrication during operation.

What are the key features of the design with a sheet steel cage and standard bearing clearance?

The sheet steel cage maintains a uniform spacing between the rolling elements and helps to minimise heat build-up. The standard radial bearing clearance is optimised for common fit conditions and a temperature range of –20 to +120 degrees Celsius. Manufactured to tolerance class P0/PN or ABEC 1, the bearing complies with standard specifications for dimensional accuracy and concentricity. The cylindrical outer ring, without a groove or flange, also allows for flush mounting in smooth housing bores.