FAGDouble-Row Spherical Roller Bearing 150 x 270 x 73 mm Tapered 1:12 Bore Polyamide Cage C3 Clearance W33

Product Description

What this part is

A FAG 22230-ES-K-TVPB-C3 double-row spherical roller bearing, 150 mm tapered bore, 270 mm outside diameter, 73 mm width. Both roller rows share a spherical outer raceway, so the inner ring and roller set swivel to take up shaft misalignment and housing deflection, and the bearing carries heavy radial load together with thrust in both directions.

Decoding the designation

22230 denotes the 222 dimension series, bore code 30 giving a 150 mm bore, in the 270 x 73 mm envelope. E denotes a reinforced internal design with larger rollers and higher load capacity than the base series. S denotes the FAG code for the W33 feature, an outer-ring groove with three radial lubrication holes. K denotes a tapered bore, 1:12 taper. TVPB denotes a glass-fibre reinforced polyamide window cage. C3 denotes radial internal clearance greater than normal.

What these specs mean in practice

The polyamide cage is light and quiet and reduces friction at moderate speed, and it sets a continuous service ceiling near 120 °C, below what a machined brass cage will hold. C3 clearance leaves running clearance once the tapered-bore drive-up has produced its interference fit and once the inner ring has grown thermally. The W33 groove routes fresh lubricant from the housing straight into the roller path.

Published specifications

Bore: 150 mm, tapered 1:12. Outside diameter: 270 mm. Width: 73 mm. Two rows of symmetrical barrel rollers, E reinforced design. Cage: glass-fibre reinforced polyamide. Radial internal clearance: C3. W33 outer-ring lubrication groove and three radial holes. Open on both faces.

Quantity and configuration

1 Pc. Bearing only, supplied without adapter sleeve. The matching adapter sleeve is the H3130, whose shaft seat is 135 mm.

Fitting notes

The 1:12 taper sets its own fit by drive-up distance on the sleeve or shaft journal, with residual clearance across the roller rows checked as drive-up progresses. Induction or oil-bath heating for mounting stays within the polyamide cage limit. Housing seats are line bored and support the full outer-ring width.

Interchange guidance

Same-spec tapered-bore C3 equivalents are the SKF 22230 EK/C3, Timken 22230KEJW33C3, NSK 22230EAKE4C3 and NTN 22230EAKD1C3. The straight-bore 22230 and the machined-brass-cage forms share the outside envelope but are related sizes, since mounting method, cage temperature limit and fitted clearance differ.