FAG22215ESTVPBW33Spherical Roller Bearing 75 x 130 x 31 mm, Double Row, Straight Bore, W33 Lubrication Groove, Polyamide Cage

Product Description

What this part is

A FAG 22215-E-S-TVPB-W33 double-row spherical roller bearing, 75 mm bore, 130 mm outside diameter, 31 mm wide. Two rows of barrel rollers run on a single spherical outer raceway, so the inner ring, rollers and cage swivel as an assembly inside the outer ring. The bearing carries heavy radial load, takes thrust in both axial directions, and accommodates shaft-to-housing misalignment without edge-loading the rollers.

Decoding the designation

222 is the ISO dimension series of the double-row spherical roller family and 15 is the bore code, giving 75 mm at five millimetres per unit. E is the reinforced internal design, with larger rollers and a raised load rating over the legacy design on the same envelope. S is the FAG code for the lubrication groove and three radial feed holes in the outer ring, the feature the ISO suffix W33 also denotes. TVPB is the glass-fibre reinforced polyamide cage. The absence of a K means a straight cylindrical bore.

What these specs mean in practice

The W33 groove delivers grease or circulating oil to the centre of the roller path through the housing rather than relying on migration in from the ring faces, which is what makes the variant relubricatable on slow, heavily loaded, continuously running shafts. The polyamide cage is light and quiet, tolerates shock and brief lubricant interruption, and has a practical continuous ceiling of 120 °C; the brass-caged E1A variant is the design path above that. Since the bore is straight, mounted radial internal clearance is set by the shaft fit rather than by drive-up onto a taper.

Quantity and configuration

1 Pc. Bearing only, open on both faces, no seals and no shields. No adapter sleeve, locknut or lockwasher, none of which a straight-bore spherical roller uses.

Fitting notes

The straight bore goes directly onto a cylindrical shaft seat with an interference fit, heated or pressed against the inner ring face so that mounting force does not pass through the rollers. The housing needs a lubricant feed port aligned to the W33 groove for the feature to do any work; where the housing has no port, the bearing runs on its sump charge.

Interchange guidance

The ISO base number is 22215, so another maker’s 22215 E W33, 22215 EJW33 or 22215 CCW33 straight-bore double-row spherical roller of the same 31 mm width is a genuine interchange. The 22215-E1-K-TVPB-W33 is a related size, not a substitution, because its 1:12 taper bore needs an H315 adapter sleeve with a 65 mm shaft seat. The legacy 22215-AS-J-W33 shares this envelope with a pressed steel cage and the older internal design, and 21315 shares the 75 mm bore in a narrower section.