Torrington22215W33Spherical Roller Bearing – Straight Bore, 75 mm ID, 130 mm OD, 31 mm Width, Open, CN Clearance, W33 Lubrication Groove

Product Description

What this part is

Torrington 22215W33 double-row spherical roller bearing. Bore: 75 mm. Outside diameter: 130 mm. Width: 31 mm. Series: 222, ISO dimension series 22215. Bore form: straight. Cage: stamped steel. Closure: open both faces. Torrington is a Timken brand.

Decoding the designation

W33: annular lubrication groove in the outer ring with three radial feed holes. The carton also carries 75SD22 and F3. Searchable forms include 22215W33, 22215-W33, 22215 W33, 75SD22F3W33 and 22215.

What these specs mean in practice

Basic dynamic radial load rating: 222 kN (49,900 lbf). Basic static radial load rating: 240 kN (54,100 lbf). Thermal reference speed: 3,800 rpm on grease, 4,600 rpm on oil. e factor: 0.22. Axial load factors: Y0 3.07, Y 3.14 below e and 4.67 above e. Geometry factor Cg: 0.0547. Two rows of barrel rollers run on a common spherical outer raceway, so the bearing carries heavy radial load with thrust in both directions and self-aligns to shaft deflection and housing misalignment. On a double-row spherical roller the static rating sitting above the dynamic rating is the normal catalogue relationship. Internal clearance: CN, the standard radial class.

Lubrication provision

The W33 outer ring carries a circumferential groove and three radial holes, so grease or oil is fed directly to the rolling elements through the housing. That supports scheduled relubrication in service without dismounting.

Quantity and configuration

One bearing, two rows of rollers, straight bore. It mounts directly on the shaft.

Fitting notes

Shaft backing shoulder diameter: 88 mm. Housing backing shoulder diameter: 120 mm. Maximum shaft fillet radius: 1.5 mm.

Interchange guidance

Same-specification equivalents: Timken 22215EJW33, SKF 22215 E, FAG 22215-E1-XL, NSK 22215EAE4. A 22215K with a 1:12 tapered bore is a related size rather than an interchange, because it mounts on an adapter sleeve instead of directly on the shaft.