FAG20211TC3Single-Row Barrel Roller Bearing – 55 mm Bore, 100 mm OD, 21 mm Width, C3 Clearance, Phenolic Cage

Product Description

What this part is

FAG 20211-T-C3 single-row barrel roller bearing, cylindrical bore, open. Bore / Shaft Size: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm. Bore Type: cylindrical. Internal Clearance: C3. Cage Material: fabric-base laminate phenolic. Number Of Rows: 1. Rolling Elements: barrel rollers. Closure Type: open. Series: 202. Base Number: 20211. Bearing Material: chrome steel. Lubricant: grease or oil. Main dimensions to DIN 635-1. Design Units: Metric.

Decoding the designation

202 — FAG’s single-row barrel roller bearing series, one row of barrel-shaped rollers on a spherical outer raceway.

11 — the bore code: 11 x 5 gives the 55 mm bore.

T — fabric-base laminate phenolic cage.

C3 — radial internal clearance greater than normal.

What these specs mean in practice

A barrel roller bearing runs one row of barrel-shaped rollers against a spherical raceway ground into the outer ring, so the inner ring and roller set swivel inside the outer ring exactly as a spherical roller bearing does. That gives generous self-alignment and a high radial capacity for a 22.5 mm section, and the single row makes it a purely radial bearing: axial location comes from another position on the shaft.

Cage Material: fabric-base laminate phenolic. A phenolic cage runs quiet, is light, and tolerates marginal lubrication and misalignment well, which is what puts this execution into paper machinery, textile drives, agricultural gearboxes and other shafts that deflect under load.

Internal Clearance: C3 gives more room than normal before the rollers are preloaded, absorbing the interference fit on the shaft and the temperature difference across the rings.

Quantity and configuration

Unit Quantity: 1 Pc.

Mounting data

Shaft seat 55 mm, cylindrical; housing bore 100 mm; seat length 21 mm. Minimum diameter of shaft shoulder da min: 64 mm. Maximum diameter of housing shoulder Da max: 91 mm. Maximum recess radius ra max: 1.5 mm. Minimum chamfer dimension r min: 1.5 mm. Bore diameter of the outer ring D1: 89.2 mm. The bearing takes radial load only, so a second bearing position carries the axial location.

Interchange guidance

Schaeffler lists 20211-TVP and 20211-TVP-C3 on the same 55 x 100 x 21 mm envelope with a glass-fibre polyamide cage, and 20211-K-TVP-C3 with a 1:12 tapered bore for an adapter sleeve. Those change the cage material or the bore form and are related executions rather than like-for-like swaps. Searchable variants of the part number: 20211T.C3, 20211-T-C3, 20211 T C3, 20211TC3, 20211.