TIMKEN Bearing 24781 - 24720XD

The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
Material: Bearing steels
In Stock:
Photo may not represent actual item. See the technical specification for details.

Specifications of TIMKEN Bearing 24781 - 24720XD

TIMKEN Bearing 24781 - 24720XD

Specifications

Series

24700

Cone Part Number

24781

Cup Part Number

24720XD

Design Unit

Inch

Bearing Weight

2.03 lb0.921 Kg

Cage Material

Stamped Steel

Dimensions

d – Bore

1 5/8 in41.275 mm

D – Cup Outer Diameter

3 in76.2 mm

B – Cone Width

0.9063 in23.020 mm

C – Double Cup Width

1.5625 in39.688 mm

T – Bearing Width across Cones

1.9374 in49.210 mm

Abutment and Fillet Dimensions

R – Cone Backface “To Clear” Radius1

0.03 in0.8 mm

r – Cup Backface “To Clear” Radius2

0.03 in0.8 mm

db – Cone Backface Backing Diameter

1.89 in48 mm

Da – Cup Frontface Backing Diameter

2.87 in72.90 mm

Aa – Cage-Cone Backface Clearance

0.03 in0.8 mm

a – Effective Center Location3

-0.19 in-4.8 mm

Basic Load Ratings

C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)4

4400 lbf19600 N

C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)5

29600 lbf132000 N

C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)6

7670 lbf34100 N

Ca90 – Dynamic Thrust Rating (90 million revolutions)7

2960 lbf13200 N

Factors

K – Factor8

1.49

e – ISO Factor9

0.39

Y1 – ISO Factor10

1.72

Y2 – ISO Factor11

2.56

Cg – Geometry Factor12

0.0767

Product description of TIMKEN Bearing 24781 - 24720XD

TIMKEN Bearing 24781 - 24720XD,Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial. Tapered Roller Bearings TDI (Tapered Double Inner) Imperial. Timken® tapered roller bearing assemblies are precisely designed to manage both radial and axial loads, even in the most unforgiving conditions.Double- or two-row Timken® tapered roller bearings feature double cups and two single cones. They are available in a variety of configurations for general industrial and automotive applications.

TDO (Two-Row Double-Outer Race)

The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.

Size range:
ID 25.400 mm to 1200.150 mm (1.0000 in. to 47.2500 in.)
OD 30.480 mm to 2460.000 mm (1.2000 in. to 96.8504 in.)

TIMKEN Bearing 24781 - 24720XDTapered Roller Bearings - TDO (Tapered Double Outer) Imperial. Design Attributes:
Double cup and two single cones, with or without a spacer.
When spacers are used, bearing is furnished as a preset, matched assembly.
Cup features groove and lubrication holes in the OD.
Spacers available with or without lubricant grooves and holes.

Applications:
Heavy-duty gear drives
Various industrial configurations

TIMKEN Bearing 24781 - 24720XDTapered Roller Bearings - TDO (Tapered Double Outer) Imperial. A tapered roller bearing assembly includes: an outer race that includes first and second outer race side raceway surfaces; an inner shaft that is inserted into the outer race, and includes a small diameter portion at an axial end thereof, a first inner race side raceway surface which has a diameter larger than that of the small diameter portion, and an intermediate cylindrical surface which is formed between the small diameter portion and the first inner race side raceway surface and has substantially the same diameter as that of the first inner race side raceway surface; an inner race fitted to the small diameter portion and including a second inner race side raceway surface; a plurality of tapered rollers interposed between the first outer race side raceway surface and the first inner race side raceway surface and between the second outer race side raceway surface and the second inner race side raceway surface; and a pulser ring fitted to the intermediate cylindrical surface.

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Literature & catalogs

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