Timken NA643SW – 632D
Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
NA643SW – 632D
Specifications
Cone Part Number
NA643SW
Cup Part Number
632D
Design Unit
Inch
Dimensions
d - Bore
69.850 mm
D - Cup Outer Diameter
136.525 mm
T - Bearing Width across Cones
95.25 mm
C - Double Cup Width
76.2 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.5 mm
r - Cup Backface "To Clear" Radius2
1.5 mm
db - Cone Backface Backing Diameter
86 mm
Da - Cup Frontface Backing Diameter
125.98 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
60400 N
C1 - Dynamic Radial Rating (1 million revolutions)4
406000 N
C5
37400 N
C906
105000 N
Factors
K - Factor7
1.61
e - ISO Factor8
0.36
Y1 - ISO Factor9
1.86
Y2 - ISO Factor10
2.78
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