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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Double Cones > Tapered Roller Bearings - Double Tapered Cones - Imperial > Part Number HM959744DW  
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Part Number HM959744DW, Tapered Roller Bearings - Double Tapered Cones - Imperial


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

Specifications

Series
HM959700

Cone Part Number
HM959744DW

Design Units
Imperial

Cage Type
Pin-Type

C1 - Dynamic Radial Rating (1 million revolutions)1
321000 lbf
1430000 N

C0 - Static Radial Rating
612000 lbf
2720000 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Dimensions

d - Cone Bore
12.0140 in
305.156 mm

B - Double Cone Width
7.8750 in
200.025 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.13 in
3.300 mm

da - Cone Frontface Backing Diameter
13.62 in
345.9 mm

Ab - Cage-Cone Frontface Clearance
0.12 in
3.05 mm
1 These maximum fillet radii will be cleared by the bearing corners.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
83100 lbf
370000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2
558000 lbf
2480000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
145000 lbf
644000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4
123000 lbf
548000 N
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 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 Ca90 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 Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Factors

K - Factor1
0.67

Cg - Geometry Factor2
0.225
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.



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