Part Number HM262749D - HM262710, Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial On The Timken Company

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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TDI (Tapered Double Inner) > Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial > Part Number HM262749D - HM262710


	Part Number HM262749D - HM262710, Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.

Unit of Measure: Imperial Metric Both

Specifications · Dimensions · Abutment and Fillet Dimensions · Basic Load Ratings · Factors · Spacer

Specifications

Series		HM262700

Cone Part Number		HM262749D

Cup Part Number		HM262710

Design Unit		Inch

Cage Material		Pin-Type

Note		This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.

Related Assembly Number(s)		HM262749D-90036 HM262749D-90040 HM262749D-90042 HM262749D-90044 HM262749D-90052 HM262749D-90054 HM262749D-90066 HM262749D-90080 HM262749D-90082 HM262749D-902A6 HM262749D-902B3 HM262749D-902B5 HM262749D-902C3 HM262749D-902C8 HM262749D-902C9 HM262749D-902D1

Dimensions

d - Bore		13.6250 in 346.075 mm

D - Cup Outer Diameter		19.2500 in 488.950 mm

B - Double Cone Width		6.8750 in 174.625 mm

C - Cup Width		2.9375 in 74.613 mm

T - Bearing Width across Cups		6.8750 in 174.625 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius¹

0.13 in
3.300 mm

r - Cup Backface "To Clear" Radius²

0.130 in
3.30 mm

da - Cone Frontface Backing Diameter

14.61 in
371 mm

Db - Cup Backface Backing Diameter

17.95 in
455.93 mm

Ab - Cage-Cone Frontface Clearance

0.2 in
5.1 mm

¹ These maximum fillet radii will be cleared by the bearing corners.
² These maximum fillet radii will be cleared by the bearing corners.

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)¹

101000 lbf
448000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)²

676000 lbf
3010000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)³

175000 lbf
780000 N

C_a90 - Dynamic Thrust Rating (90 million revolutions)⁴

57700 lbf
257000 N

¹ Based on 90 x 10⁶ revolutions L₁₀ life, for The Timken Company life calculation method. C₉₀ and C_a90 are radial and thrust values.
² Based on 1 x 10⁶ revolutions L₁₀ life, for the ISO life calculation method.
³ Based on 90 x 10⁶ revolutions L₁₀ life, for The Timken Company life calculation method. C₉₀ and C_a90 are radial and thrust values for a single-row, C₉₀₍₂₎ is the two-row radial value.
⁴ Based on 90 x 10⁶ revolutions L₁₀ life, for The Timken Company life calculation method. C₉₀ and C_a90 are radial and thrust values for a single-row, C₉₀₍₂₎ is the two-row radial value.

Factors

K - Factor¹

1.74

e - ISO Factor²

0.33

Y1 - ISO Factor³

2.02

Y2 - ISO Factor⁴

Cg - Geometry Factor⁵

0.2

¹ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
² These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
³ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
⁴ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
⁵ Geometry constant for Lubrication Life Adjustment Factor a3l.

Spacer

Note		Spacer shows standard nominal .01 radii, actual bearing may vary

MORE IMAGES


	· Timken_TRB_2ROWASSY_TDI_39585D-90015-A

	· Timken_TRB_2ROWASSY_TDI_39585D-90015-A3

	· Timken_TRB_2ROWASSY_TDI_39585D-90015-T2

VIEW CAD DRAWING



· 3D


· 2D Sectional View


· 2D Sales Drawing

DOWNLOADS


		Bearing Life Calculation Tool

		Bearing Dimensional Tolerances

		Tools and Guides for Engineers

		TRB TDI Line Drawing (JPG, 14KB)

Part Number HM262749D - HM262710, Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

Series

Cone Part Number

Cup Part Number

Design Unit

Cage Material

Note

Related Assembly Number(s)

d - Bore

D - Cup Outer Diameter

B - Double Cone Width

C - Cup Width

T - Bearing Width across Cups

R - Cone Backface "To Clear" Radius1

r - Cup Backface "To Clear" Radius2

da - Cone Frontface Backing Diameter

Db - Cup Backface Backing Diameter

Ab - Cage-Cone Frontface Clearance

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)1

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3

Ca90 - Dynamic Thrust Rating (90 million revolutions)4

K - Factor1

e - ISO Factor2

Y1 - ISO Factor3

Y2 - ISO Factor4

Cg - Geometry Factor5