SKF24038-CC/C4W33Double-Row Spherical Roller Bearing 190 x 290 x 100 mm, Straight Bore, Pressed Steel Cage, C4 Clearance, W33 Lubrication Groove and Three Holes

Product Description

What this part is

An SKF 24038 CC/C4W33 double-row spherical roller bearing from the wide 240 series. Straight bore, pressed steel cage, open on both faces, with a lubrication groove and three feed holes in the outer ring.

Decoding the designation

240 — spherical roller dimension series 240, the extra-wide series.
38 — bore code, giving a 190 mm bore.
CC — pressed steel cage.
C4 — internal clearance greater than C3.
W33 — lubrication groove in the outer ring plus three radial feed holes.
No K or K30 in the designation, so the bore is straight.

What these specs mean in practice

The two roller rows share a common spherical outer raceway, so the inner ring and roller set tilt within the outer ring and absorb shaft or housing misalignment. Two opposed contact lines carry thrust in both directions alongside very heavy radial load, and the 100 mm width of the 240 series puts more roller length under that load than a 222 or 223 ring on the same bore. C4 clearance leaves more room than C3 for thermal growth and for a heavy interference fit on the shaft, which is what a hot, heavily loaded position needs. The W33 groove and holes carry grease or oil through the housing directly into the roller path for relubrication in service.

Published specifications

Bore: 190 mm (7.4803 in), straight
Outside diameter: 290 mm (11.4173 in)
Width: 100 mm (3.9370 in)
Rows: 2
Rolling elements: spherical steel rollers
Cage: pressed steel
Internal clearance: C4
Relubrication: W33 groove and three feed holes in the outer ring
Closure: open both faces
Thrust capacity: both directions

Mounting arrangement

Straight bore, mounted directly on a machined shaft seat. No adapter sleeve is involved.

Quantity and configuration

1 Pc.

Interchange guidance

ISO base number 24038. Searchable forms are 24038 CC/C4W33, 24038CC/C4W33, 24038CCC4W33, 24038-CC/C4W33, 24038 CC C4 W33 and 24038CCW33. A 24038 CC/W33 in CN clearance and a 24038 CC/C3W33 are different clearance grades, a 24038 CCK30/C4W33 has a 1:30 tapered bore and needs a sleeve, and a 24038 CA/C4W33 carries a machined brass cage, so all are related sizes rather than interchanges.