SKF22209-CC/C3W33Double-Row Spherical Roller Bearing 45 x 85 x 23 mm, Straight Bore, C3 Clearance, W33 Lubrication Groove

Product Description

What this part is

This is an SKF 22209 CC/C3 W33 double-row spherical roller bearing with a 45 mm bore, 85 mm outside diameter and 23 mm width. The two rows of barrel-shaped rollers run on a common spherical raceway in the outer ring, which lets the inner ring and shaft swivel relative to the housing and absorb static and dynamic misalignment.

Decoding the designation

The 222 prefix identifies the double-row spherical roller family in the 222 dimension series, and the 09 bore code gives 45 mm. CC specifies a pressed steel window cage. C3 is a radial internal clearance greater than normal. W33 means the outer ring carries a lubrication groove around its circumference and three radial lubrication holes into it. There is no K in the designation, so the bore is straight rather than tapered.

What these specs mean in practice

A double-row spherical roller bearing carries very high radial load and takes axial load in both directions, while tolerating shaft-to-housing misalignment that would destroy a cylindrical roller bearing. C3 clearance gives more running room than normal clearance, which suits a tight shaft fit, a heated interference mount, or an application where the inner ring runs materially hotter than the outer. The W33 groove and holes allow relubrication through the housing while the bearing stays in place.

Quantity and configuration

Single bearing, 1 Pc. Straight bore, so it mounts directly onto a cylindrical shaft seat.

Fitting notes

The straight bore is normally an interference fit and the bearing is mounted by even heating rather than by pressing on the outer ring. Where the housing is fed through the W33 holes, the housing lubrication port is aligned with the outer ring groove so the passage stays open.

Interchange guidance

Same-spec equivalents in other schemes are FAG 22209-E1-XL-K-C3 in its straight-bore form 22209-E1-XL-C3, NSK 22209EAE4C3 and Timken 22209EJW33C3, all 45 x 85 x 23 mm with the lubrication groove and holes. A 22209 CCK/C3 W33 shares the envelope but has a 1:12 tapered bore, and a 22209 CC/W33 without a clearance suffix is normal CN clearance; both are related sizes rather than substitutions.