Deep Groove Ball Bearings SKF 6309 N

The SKF 6309 N deep groove ball bearing, measuring 45x100x25 mm and featuring an integrated ring groove, provides a space-saving axial fixation within the housing.

The SKF 6309 N single-row deep groove ball bearing accommodates radial loads as well as moderate axial loads in both directions. With key dimensions of a 45 mm bore, 100 mm outside diameter and 25 mm width, this rolling bearing features a circumferential groove in the outer ring. The open component is made from standard 100Cr6 rolling-element bearing steel and is suitable for a temperature range of -20 to +150 degrees. It can be flexibly integrated into existing lubrication circuits using oil or grease.

What is the 6309 N deep-groove ball bearing with ring groove suitable for?

Design engineers primarily use this roller bearing in mounting arrangements where axial installation space is limited. The groove in the outer ring allows a retaining ring to be fitted, thereby eliminating the need for housing shoulders. This significantly reduces manufacturing costs and the axial space required for the housing bore. As the bearing is open at both ends, it is particularly suitable for systems with an external lubricant supply.

What advantages does the suffix ‘N’ offer during housing assembly?

The suffix ‘N’ indicates a machined ring groove on the outer ring. You secure the bearing axially in the housing using a suitable retaining ring, which helps to prevent axial displacement during operation. The standard radial bearing clearance and tolerance class P0 (ABEC 1) comply with the basic industrial requirements for standard fits. External housing seals protect the open bearing against the ingress of contaminants.