Timken NA495A – 493D
Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
NA495A – 493D
Specifications
Cone Part Number
NA495A
Cup Part Number
493D
Related Assembly Number(s)
NA495A-90039
Design Unit
Inch
Dimensions
d - Bore
76.2 mm
D - Cup Outer Diameter
136.525 mm
T - Bearing Width across Cones
69.85 mm
C - Double Cup Width
53.975 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.5 mm
r - Cup Backface "To Clear" Radius2
0.8 mm
db - Cone Backface Backing Diameter
92 mm
Da - Cup Frontface Backing Diameter
130.05 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
40000 N
C1 - Dynamic Radial Rating (1 million revolutions)4
269000 N
C5
30500 N
C906
69700 N
Factors
K - Factor7
1.31
e - ISO Factor8
0.44
Y1 - ISO Factor9
1.52
Y2 - ISO Factor10
2.26
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