Deep Groove Ball Bearings SKF 6309

The SKF 6309 deep groove ball bearing, with dimensions of 45x100x25 mm, is designed for radial and axial loads in industrial shaft mountings.

The 6309 deep groove ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6) in the SKF Explorer design. With an inside diameter of 45 mm, an outside diameter of 100 mm and a width of 25 mm, this unit primarily accommodates radial forces as well as moderate axial loads in both directions. The stamped sheet steel cage maintains the rolling elements at a defined distance and ensures even load distribution during operation. The open roller bearing is primarily used in designs where lubrication and sealing are managed externally via the surrounding housing.

For which loads is the 6309 deep-groove ball bearing suitable?

The 6309 deep groove ball bearing is designed for combined force transmission in industrial bearing arrangements with rotating shafts. Thanks to its open design without abiding sealing lips, the ball bearing is ideally suited for lubrication circuits with an external oil or grease supply. The SKF Explorer version is characterised by smooth running and fatigue resistance under demanding operating cycles. Thanks to the standard radial bearing clearance, the required operating clearance remains stable within the specified temperature range of –20 to +120 degrees Celsius.

What are the key features of the open design of the 6309 deep groove ball bearing?

The open design of the rolling bearing allows direct circulation of operating oil or grease, but requires a protected installation environment or external housing seals. Thanks to the standardised tolerance class P0 (ABEC 1), the bearing is suitable for cylindrical shaft seats and standardised housing bores. The outer ring is designed without a groove or flange, which allows for flexible axial installation. During assembly, the press-fit force should always be applied to the fixed ring to prevent shock loads on the balls.