TIMKEN Bearing 21212-B

Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.
Material: Bearing steels
In Stock:
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Specifications of TIMKEN Bearing 21212-B

TIMKEN Bearing 21212-B

Specifications

Series

21000

Cup Part Number

21212-B

Design Units

Imperial

Dimensions

D – Cup Outer Diameter

2.125 in53.975 mm

D1 – Flange Outer Diameter

2.2772 in57.841 mm

C – Cup Width

0.625 in15.875 mm

C1 – Cup Flange Width

0.1562 in3.967 mm

Abutment and Fillet Dimensions

r – Cup Backface “To Clear” Radius1

0.090 in2.3 mm

Da – Cup Frontface Backing Diameter

2.07 in52.58 mm

Factors

K – Factor2

0.99

e – ISO Factor3

0.59

Y – ISO Factor4

1.02

Cg – Geometry Factor5

0.0558

Product description of TIMKEN Bearing 21212-B

Tapered Roller Bearings - Single Flanged Cups - Imperial, TIMKEN Bearing 21212-B,

The TSF type is a variation on the basic single-row bearing. And related type you may also like TIMKEN Bearing 221575-B.

TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.

Size range:
ID 7.937 mm to 1270.000 mm (0.3125 in. to 50.0000 in.)
OD 31.991 mm to 1435.100 mm (1.2595 in. to 56.5000 in.)

Design Attributes of Tapered Roller Bearings - Single Flanged Cups - Imperial, TIMKEN Bearing 21212-B.

Cup is backed against flange face to allow housing to be through-bored.

Accurate alignment of housing bores.

Reduced machining costs.

Applications:
Machine tool spindles
Gear reduction units
Automotive transaxles
Transmissions

Tapered Roller Bearings - Single Flanged Cups - Imperial, TIMKEN Bearing 21212-B, Machined cages for tapered roller bearings are robust in design and are suited for high-speed and high-load applications. Machined cages use alloy steels and are produced through milling and broaching operations. Assembly does not require a close-in operation and rollers can be retained using nibs or staking. Oil holes also can be easily added for extra lubrication for demanding applications. Some designs are silver plated for special applications.

The most common type of cage used for tapered roller bearings is the stamped-steel cage. These cages are mass produced from low-carbon sheet steel using a series of cutting, forming and punching operations. These cages can be used in high temperature and harsh lubricant environments.

Spacer bearing assemblies speed up bearing installation time because there is no need for bearing adjustment. Spacer bearing assemblies are suitable for use with two-row and four-row Timken® tapered roller bearings to preset the bench lateral (bench end play). Most matched bearing assemblies have serial numbers to ensure correct installation sequence. Timken spacer bearings are precisely ground to provide the exact bench lateral required for the particular bearing application. Since each spacer is custom-fitted to a particular set of components, a spacer cannot be used with any other bearing components – even if they carry the same part numbers.

You may also like TIMKEN Bearing 221575-B

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Substitute products of TIMKEN Bearing 21212-B

Literature & catalogs

TIMKEN -LUBRICATION
Download
TIMKEN -TYPE- TDI
Download
TIMKEN-TAPERED ROLLER BEARING CAGES
Download
TIMKEN-TYPE- TS
Download

Videos

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