FAG22215ASMC3W33Double Row Spherical Roller Bearing 75 x 130 x 31 mm, Straight Bore, Brass Cage, C3, W33

Product Description

What this part is

A FAG 22215-AS-M-C3-W33 double-row spherical roller bearing — 75 mm straight bore, 130 mm outside diameter, 31 mm wide, with a machined brass cage, C3 internal clearance and the W33 lubrication groove and holes.

Decoding the designation

22215 — double-row spherical roller, 222 dimension series, 75 mm bore
AS — lubrication groove in the outer ring with three radial holes; FAG’s code for the feature the industry writes as W33
M — machined brass cage
C3 — radial internal clearance greater than normal
No K suffix — the bore is straight, not tapered

What these specs mean in practice

A double-row spherical roller self-aligns on its spherical outer raceway, so it absorbs shaft deflection and housing misalignment that would edge-load a cylindrical roller, and it carries thrust in both directions. C3 clearance buys running room for thermal growth or for an interference fit on the shaft, at the cost of a little radial stiffness. A machined brass cage takes more shock loading and runs at a higher temperature ceiling than a pressed-steel cage, which is why it is specified on screens, crushers and mill drives. The W33 groove and holes deliver lubricant into the loaded zone straight from a housing port.

Published ratings and mounting data

Bore: 75 mm, straight (cylindrical)
Outside diameter: 130 mm
Width: 31 mm
Dynamic load rating C: 216 kN
Static load rating C0: 240 kN
Rows: 2
Rolling element: spherical (barrel) roller
Cage: machined brass
Internal clearance: C3, greater than normal
Tolerance class: ISO Normal
Relubrication: outer-ring groove plus three radial holes (W33 / AS)
Closure: open
Axial capacity: both directions

Quantity and configuration

1 Pc. Complete bearing — outer ring, two roller rows and the brass cage, straight-bore inner ring.

Interchange guidance

The ISO base number 22215 identifies the same envelope across brands: SKF 22215 EK is the taper-bore relative, while SKF 22215 E, NSK 22215EAE4 and NTN 22215EAD1 are the same straight-bore size. A 22215-AS-K-M-C3 with the K is a tapered bore mounted on an adapter sleeve and is a different part. A 22215 CC with a pressed-steel cage has different ratings and speed limits, so cage variants are related sizes rather than direct equivalents.