FAG1212Double Row Self-Aligning Ball Bearing 60x110x22 mm, Straight Bore, Open Both Faces, Pressed Steel Cage

Product Description

What this part is

A FAG 1212 double-row self-aligning ball bearing — 60 mm bore, 110 mm outside diameter, 22 mm width, straight cylindrical bore, open on both faces. Two rows of balls run in a common spherical outer raceway, so the inner ring and ball set swivel inside the outer ring and the bearing tolerates angular misalignment between the shaft and its housing.

Decoding the designation

1212 – double-row self-aligning ball bearing, 60 mm bore, 110 mm OD, 22 mm width, straight bore
No K suffix, so the bore is cylindrical rather than the 1:12 taper of a 1212-K
No cage suffix, so a pressed steel cage
No clearance suffix, so internal clearance is normal (CN)
No closure suffix, so both faces are open

What these specs mean in practice

The spherical outer raceway is what separates this bearing from a deep groove type of the same size. Where a shaft is long, a frame is welded rather than machined in one setup, or two housings are bored separately, the resulting angular error would edge-load a rigid bearing and shorten its life. Here the inner ring simply tilts. The cost of that freedom is low axial capacity, so the bearing supports the shaft radially and axial location comes from elsewhere in the arrangement. A pressed steel cage keeps the bearing narrow and inexpensive and is well suited to moderate speeds under grease lubrication.

Published specifications

Bore: 60 mm (2.3622 in), straight cylindrical
Outside diameter: 110 mm (4.3307 in)
Width: 22 mm (0.8661 in)
Rows: 2
Rolling elements: balls
Cage: pressed steel
Internal clearance: CN (normal)
Closure: open both faces
Self-aligning: yes, spherical outer raceway

Quantity and configuration

Sold as 1 Pc, one complete bearing, open on both faces. No adapter sleeve, seal, lock nut or spacer is included.

Fitting notes

The bearing mounts straight onto a cylindrical shaft seat with force applied to the ring being fitted. The housing bore is a plain cylindrical seat; the misalignment capability is internal to the bearing, so no spherical seat is required. The second bearing position or a shaft shoulder handles axial location. The open faces take lubricant from the housing cavity, which is packed to roughly one third of its free volume for grease service.

Interchange guidance

The direct equivalent is a straight-bore double-row self-aligning ball bearing in the 60 x 110 x 22 mm envelope: SKF 1212, NSK 1212, NTN 1212, Koyo 1212. The 1212-K variant carries a 1:12 tapered bore and mounts on an H212 adapter sleeve, so it is a different part in the same envelope and the sleeve is a separate item. A 6212 deep groove bearing in a similar envelope is rigid and is not an interchange where misalignment has to be absorbed.