SKF22209CYW33Double-Row Spherical Roller Bearing 45 x 85 x 23 mm, Straight Bore, Pressed Brass Cage, W33 Lubrication Groove

Product Description

What this part is

This is an SKF 22209 CY/W33 double-row spherical roller bearing with a 45 mm straight bore, 85 mm outside diameter and 23 mm width. Two rows of barrel-shaped rollers run on a common spherical raceway in the outer ring, letting the shaft swivel relative to the housing and absorb misalignment while carrying load.

Decoding the designation

The 222 prefix is the double-row spherical roller family and the 09 bore code gives 45 mm. CY specifies a pressed brass window cage. W33 means the outer ring carries a circumferential lubrication groove and three radial lubrication holes into it. There is no K, so the bore is straight, and no clearance suffix, so radial internal clearance is normal, CN.

Cage material and what it buys

The Y in this designation is a pressed brass cage rather than the pressed steel cage of a CC or CJ variant. Brass is more tolerant of marginal lubrication, higher temperature and vibration than pressed steel, and the change of cage material also changes the bearing’s published speed and load figures. Cage code is therefore part of the part identity here, not a cosmetic detail.

What these specs mean in practice

The double row carries very high radial load and takes axial load in both directions, while tolerating shaft-to-housing misalignment that would fail a cylindrical roller bearing. CN clearance suits a shaft and housing running at similar temperatures with standard interference fits. The W33 groove and holes allow grease or oil to reach the rollers through the housing with the bearing in place.

Quantity and configuration

Single bearing, 1 Pc. Straight bore, mounting directly onto a cylindrical shaft seat with no adapter sleeve.

Fitting notes

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

Interchange guidance

The closest equivalents in other schemes at the same envelope with a brass cage are FAG 22209-E1-XL-K-MB in its straight-bore form and NSK 22209CAE4, both 45 x 85 x 23 mm with lubrication groove and holes. The 22209 CC/W33 and 22209 CJ/W33 share the envelope but carry pressed steel cages and different ratings, which makes them related sizes rather than substitutions.