Deep Groove Ball Bearings FAG 6203 -TB-P63

The FAG 6203 -TB-P6-C3 single-row deep groove ball bearing combines an increased clearance (C3), tolerance class P6 and a hard-fibre cage, with dimensions of 17 x 40 x 12 mm.

The 6203 -TB-P6-C3 from FAG is an open, single-row radial ball bearing made from standard rolling-element bearing steel (100Cr6) with a bore of 17 mm, an outer diameter of 40 mm and a width of 12 mm. As a special version, the component features the tighter tolerance class P6 (ABEC 3), a slightly increased radial clearance C3 and a dimensionally stable hard-fibre cage. The design, which does not include cover or sealing rings, is suitable for lubrication systems using oil or grease at operating temperatures ranging from –20 to +120 degrees Celsius.

What is the 6203 -TB-P6-C3 deep groove ball bearing suitable for?

This deep-groove ball bearing is used in rotating components where high speeds and precise guidance are required. Thanks to the lightweight hard-fibre cage and reduced mass inertia, this design is suitable for high-speed shafts and spindle bearings. The open design allows for direct lubricant supply via the surrounding housing. At the same time, the design primarily accommodates radial forces as well as moderate axial loads in both directions, as encountered in compact drive systems.

What do ‘fibre-reinforced cage’, tolerance class P6 and bearing clearance C3 mean?

When selecting bearings, the abbreviations determine their suitability for the specific application. The hard-fibre cage (TB) is characterised by low friction and smooth running at high circumferential speeds. Compared with the standard, tolerance class P6 offers tighter dimensional and running tolerances for smooth concentricity. The increased radial clearance C3 compensates for dimensional changes when the shaft and inner ring heat up more than the housing during operation, and helps to prevent undesirable stress in the rolling bearing.