Deep Groove Ball Bearings SKF 6244 M

The SKF 6244 M deep-groove ball bearing with a brass cage offers high load-carrying capacity with main dimensions of 220 × 400 × 65 mm for large industrial gearboxes and heavy machinery.

This single-row 6244 M deep groove ball bearing from SKF primarily accommodates radial forces as well as axial loads in both directions. The open design, without integrated sealing washers, allows for direct lubrication via the surrounding machinery. Manufactured from standard rolling-element bearing steel (100Cr6), this design is suitable for operating temperatures ranging from –20 to +150 degrees. With standard radial clearance and tolerance class P0/PN (ABEC 1), the bearing complies with the common standard for industrial applications.

What is the 6244 M deep groove ball bearing suitable for?

Design engineers primarily select the 6244 M deep-groove ball bearing for heavy-duty industrial gearboxes, large electric motors and industrial drives. With dimensions of a 220 mm bore and a 400 mm outer diameter, the component supports heavy rotating shafts in continuous operation. As it is an open bearing, it can be integrated directly into existing oil circulation systems or lubricated manually with grease. The symmetrical raceway geometry helps to ensure even force distribution during operation.

What advantages does the brass cage offer in this large bearing?

The suffix ‘M’ denotes a solid brass cage that guides the rolling elements precisely. Compared with standard cages made from pressed sheet steel, brass offers high strength and is less susceptible to vibrations, impacts and high acceleration forces. Furthermore, the material performs well under conditions of insufficient lubrication, as brass possesses favourable emergency running properties. In demanding operating conditions involving dirt or vibrations, this cage design ensures stable operation of the bearing assembly.