Deep Groove Ball Bearings SKF 6209 NR

The SKF 6209 NR deep groove ball bearing combines the main dimensions 45x85x19 mm with a ring groove and retaining ring for easy axial fixing in the housing.

The 6209 NR deep groove ball bearing is a single-row rolling bearing made from standard 100Cr6 bearing steel with an open design. It is manufactured to the standard tolerance class P0/PN or ABEC 1 and with standard radial clearance. Due to its open design, this version is suitable for installations where lubrication is provided via an external lubrication system, such as an oil bath. The component is designed for an operating temperature range of –20 to +150 degrees Celsius.

In which applications is the 6209 NR deep groove ball bearing used?

Design engineers select this radial ball bearing for shaft support in industrial machinery where primarily radial loads and moderate axial forces occur. The component guides the shaft in both directions and accommodates combined loads. As it is manufactured from standard rolling-bearing steel and the rolling elements are guided by a sheet steel cage, the bearing is designed to provide smooth running characteristics during continuous operation.

What is the function of the ring groove with retaining ring in bearing 6209 NR?

The suffix ‘NR’ denotes a ring groove in the outer ring in which a snap ring is seated. This feature simplifies the housing design, as the snap ring provides axial retention of the bearing directly against the housing shoulder. This eliminates the need for complex housing covers or separate stop rings, saving axial installation space and simplifying assembly procedures.