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Timken 443 - 432DC

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443 - 432DC

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Product Description

Tapered Roller Bearings Tapered Roller Bearings - TDO (Tapered Double Outer) Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial Timken Part Number 443 - 432DCTimken Part Number 443 - 432DC, Tapered Roller Bearings - TDO (Tapered Double Outer) ImperialThe 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. Specifications | Dimensions | Abutment and Fillet Dimensions | Basic Load Ratings | Factors


Series 435
Cone Part Number 443
Cup Part Number 432DC
Design Units Imperial
Bearing Weight 5.19 lb2.355 Kg
Cage Type Stamped Steel
Ab - Cage-Cone Frontface Clearance 0.05 in1.3 mm


d - Bore 1.2500 in31.750 mm
D - Cup Outer Diameter 3.7500 in95.250 mm
B - Cone Width 1.1772 in29.901 mm
C - Double Cup Width 2.0000 in50.800 mm
T - Bearing Width across Cones 2.4376 in61.915 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 0.03 in0.800 mm
r - Cup Frontface "To Clear" Radius2 0.03 in0.8 mm
db - Cone Backface Backing Diameter 1.65 in41.90 mm
Da - Cup Frontface Backing Diameter 3.46 in87.12 mm
Aa - Cage-Cone Backface Clearance 0.04 in1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 7400 lbf32900 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 49700 lbf221000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 12900 lbf57300 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 3600 lbf16000 N


K - Factor7 2.05
e - ISO Factor8 0.59
Y1 - ISO Factor9 1.14 1.70
Y2 - ISO Factor10 1.7
Cg - Geometry Factor11 0.0805

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