FAG22224SKMBC3W3322224 S K MB C3 W33 Double-Row Spherical Roller Bearing 120x215x58 mm Tapered 1:12 Bore Brass Cage

Product Description

What this part is

FAG 22224-S-K-MB-C3 double-row spherical roller bearing with a tapered 1:12 bore. Two rows of barrel rollers run on a common spherical outer raceway, so the inner ring and roller set swivel inside the outer ring.

Decoding the designation

222 – double-row spherical roller bearing, dimension series 22
24 – bore code, 24 × 5 = 120 mm bore
S – lubrication groove in the outer ring with three radial holes, the FAG form of W33
K – 1:12 tapered bore
MB – machined brass cage, inner-ring guided
C3 – radial internal clearance greater than normal

What these specs mean in practice

The spherical outer raceway takes up static and dynamic misalignment between shaft and housing, and the double-row roller set carries radial load plus thrust in both directions. An inner-ring-guided machined brass cage holds the rollers steadily under shock loading and at higher temperature than a moulded polyamide cage. C3 clearance leaves extra running room for interference-fit mounting and for a shaft that runs hotter than its housing.

Published specifications

Bore: 120 mm (4.7244 in), tapered 1:12
Outside diameter: 215 mm (8.4646 in)
Width: 58 mm (2.2835 in)
Rows: 2
Rolling elements: barrel rollers
Cage: machined brass, inner-ring guided (MB)
Internal clearance: C3
Relubrication: outer-ring groove with three radial holes

Quantity and configuration

1 Pc. Bearing only. Supplied without adapter sleeve H3124.

Fitting notes

The 1:12 tapered bore seats on a matching tapered shaft journal or on an H3124 adapter sleeve, whose shaft seat is 110 mm. Drive-up distance along the taper sets the residual internal clearance, so mounted clearance follows how far the ring is pressed onto the seat. The lubrication groove aligns with the housing relubrication port.

Interchange guidance

Same-spec brass-cage tapered-bore equivalents in other schemes: SKF 22224 CCK/W33 C3 in its brass-cage CAK/W33 C3 form, NSK 22224CAMKE4C3, Timken 22224KEMW33C3. Polyamide-cage TVP forms and straight-bore 22224 forms are related sizes in the same envelope, not interchanges.