Timken NA397 – 394D
Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
NA397 – 394D
Specifications
Cone Part Number
NA397
Cup Part Number
394D
Related Assembly Number(s)
NA397-90089
Design Unit
Inch
Dimensions
d - Bore
60 mm
D - Cup Outer Diameter
110 mm
T - Bearing Width across Cones
52.388 mm
C - Double Cup Width
46.038 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
74 mm
Da - Cup Frontface Backing Diameter
104.65 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
25600 N
C1 - Dynamic Radial Rating (1 million revolutions)4
172000 N
C5
17600 N
C906
44600 N
Factors
K - Factor7
1.45
e - ISO Factor8
0.4
Y1 - ISO Factor9
1.68
Y2 - ISO Factor10
2.5
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NA397 – 394D
