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FAGSingle Row Barrel Roller Bearing 50x90x20 mm Tapered Bore Brass Cage C3

Condition: New – Open box
Condition Note: New Old Stock, Stained (See Pictures)

Availability:

3 in stock

Single-row barrel roller bearing, 50 mm bore x 90 mm OD x 20 mm wide. 1:12 tapered bore, machined brass cage, C3 clearance, radial load with self-alignment. 1 Pc.

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List Price

$75.70

3 in stock

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Specifications

Key Specifications

MFR / BrandFAG
Model20210 K MB C3
Bearing TypeBarrel Roller Bearing, Open
ID50 mm
OD90 mm
Width20 mm

Technical Specifications

MaterialChrome Steel
Series20200
Base Number20210
Bore Shaft Size50 mm (1.9685 in)
Mpn Variants20210-K-MB-C3, 20210K.MB.C3, 20210KMBC3, 20210K
Closure TypeOpen
Rolling ElementsRollers
Number Of Rows1
Bore TypeTapered
Snap Ring IncludedWithout Snap Ring
Harmonization Code8482.30.00.40
Seller Part Number: AR3B2#WE8MCZ

Product Description

What this part is

FAG 20210-K-MB-C3, a single-row barrel roller bearing. One row of barrel-shaped rollers runs on a spherical outer raceway, so the inner ring, roller set and cage swivel inside the outer ring. Boundary dimensions 50 mm bore × 90 mm outside diameter × 20 mm width. Tapered bore, 1:12.

Decoding the designation

20 – barrel roller, single row2 – ISO dimension series10 – bore code, 10 × 5 = 50 mm boreK – tapered bore, taper 1:12MB – machined brass cage, inner-ring guidedC3 – radial internal clearance greater than normal

What these specs mean in practice

The barrel roller carries radial load and self-aligns on its spherical outer raceway, taking shaft deflection and housing misalignment without edge loading the rollers. Load is radial only. C3 clearance leaves running clearance after a tight shaft fit and after thermal growth of the inner ring. The machined brass cage runs at higher speed and temperature than a pressed steel cage.

Published specifications

Bore: 50 mm (1.9685 in)Outside diameter: 90 mm (3.5433 in)Width: 20 mm (0.7874 in)Rows: 1Bore form: tapered, 1:12Cage: machined brass, MBInternal clearance: C3

Quantity and configuration

1 Pc. Bearing only. Supplied without adapter sleeve.

Fitting notes

A tapered-bore barrel roller seats on an adapter sleeve when it goes onto a plain cylindrical shaft; the sleeve for a 20210K is an H210, whose shaft seat is 45 mm, one bore-code step below the bearing bore.

Interchange guidance

Alternate written forms of the same bearing: 20210-K-MB-C3, 20210K.MB.C3, 20210KMBC3, 20210K. The cylindrical-bore 20210MB is a related size on the same envelope with a different bore form. The 22210K is a double-row spherical roller bearing, a different bearing type.

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