FAG22220ES.TVPBDouble Row Spherical Roller Bearing 100 x 180 x 46 mm, Cylindrical Bore, W33 Lube Groove, Polyamide Cage

Product Description

What this part is

A double-row spherical roller bearing with a cylindrical bore, 100 mm bore × 180 mm outside diameter × 46 mm width. Two rows of barrel-profile rollers run on a common spherical outer raceway, so the inner ring and roller set swivel within the outer ring. The bearing carries heavy radial load, takes thrust in both axial directions, and accommodates static misalignment and running shaft deflection.

Decoding the designation

222 — double-row spherical roller dimension series.
20 — bore code, 100 mm.
E — reinforced design, increased load capacity.
S — lubrication groove around the outer ring with three radial lubrication holes. This is the FAG code for the feature SKF designates W33, which is why both appear on this listing.
TVPB — glass-fibre reinforced polyamide window cage, roller guided.
No K suffix — cylindrical bore.
No clearance suffix — normal radial internal clearance, CN.

Bore form

The bore is cylindrical, so the bearing mounts directly onto a plain shaft seat with an interference fit chosen by the shaft tolerance. That is the distinction from the 22220 EK variant, whose 1:12 tapered bore mounts on a tapered journal or an adapter sleeve.

What these specs mean in practice

The spherical outer raceway is what makes the bearing self-aligning, and the double row is what gives it thrust capacity in both directions rather than one. The reinforced E design uses longer rollers and thinner rings to lift the dynamic rating within the same envelope. The outer-ring groove and three holes feed grease or oil to the centre of the two roller rows from a housing port, which is the arrangement used where the bearing is relubricated on a schedule. A polyamide cage is lighter and quieter than machined brass and absorbs momentary shock well; its continuous service ceiling is roughly 120 °C, below what brass will take.

Published specifications

Bore: 100 mm (3.937 in), cylindrical
Outside diameter: 180 mm (7.087 in)
Width: 46 mm (1.811 in)
Rows: 2
Rolling element: spherical (barrel profile) rollers
Cage: glass-fibre reinforced polyamide, window type, roller guided
Cage temperature ceiling: approximately 120 °C continuous
Lubrication feature: outer-ring groove and three radial holes
Radial internal clearance: CN, normal
Closure: open, both faces
Axial load capacity: both directions

Quantity and configuration

Sale unit 1 Pc. Bearing only.

Fitting notes

The cylindrical bore seats directly on the shaft. Where the outer-ring lubrication holes are used, the housing lube port aligns with the groove, which is continuous around the ring and so requires no rotational indexing.

Interchange guidance

The ISO base number is 22220, and the equivalent SKF designation for this execution is 22220 E/W33. A 22220 EK is a related size rather than an interchange, its tapered bore calling for a tapered journal or an adapter sleeve. A 22220 carrying a machined brass M cage, a pressed steel CC cage, or a clearance suffix such as C3 is likewise a related size, since cage material sets the temperature and speed rating and clearance class sets the mounted preload.