Deep Groove Ball Bearings FAG 6309 -M

The FAG 6309-M deep-groove ball bearing is an open, single-row rolling bearing with a brass cage, measuring 45 x 100 x 25 mm.

The FAG 6309-M deep groove ball bearing is suitable for demanding applications in general mechanical engineering and drive technology. As a single-row radial ball bearing, this component primarily withstands radial loads and supports shafts subjected to moderate axial forces in both directions. The design features a bore of 45 mm, an outer diameter of 100 mm and a width of 25 mm. Manufactured from standard rolling-bearing steel 100Cr6, the component operates within a temperature range of -30 to +150 degrees.

What is the 6309-M deep groove ball bearing suitable for in operation?

Design engineers primarily use the 6309-M deep groove ball bearing where stable guidance is required under vibration or higher mechanical demands. Typical applications include shaft guides subject to dynamic loads and vibrations. As there are no integrated seals, the rolling elements are lubricated during operation by an oil bath or housing grease. The solid brass cage guides the rolling elements accurately through the deep raceways, even during rapid changes in speed.

What are the distinctive features of the brass cage in the 6309 -M?

The suffix ‘-M’ denotes a solid brass cage. Compared to standard sheet steel cages, brass is characterised by high strength combined with low friction. This proves advantageous under vibration-intensive operating conditions and during rapid load changes. The standard radial bearing clearance, together with manufacture to tolerance class P0/PN or ABEC 1, enables straightforward installation in accordance with common industry standards. Clean lubrication conditions help to minimise premature wear at the rolling contact.