Timken NA9378 – 9320D
Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
NA9378 – 9320D
Specifications
Cone Part Number
NA9378
Cup Part Number
9320D
Related Assembly Number(s)
NA9378-90014
Design Unit
Inch
Dimensions
d - Bore
76.2 mm
D - Cup Outer Diameter
177.800 mm
T - Bearing Width across Cones
109.538 mm
C - Double Cup Width
74.613 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.5 mm
r - Cup Backface "To Clear" Radius2
2.3 mm
db - Cone Backface Backing Diameter
105 mm
Da - Cup Frontface Backing Diameter
164.59 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
94100 N
C1 - Dynamic Radial Rating (1 million revolutions)4
632000 N
C5
123000 N
C906
164000 N
Factors
K - Factor7
0.76
e - ISO Factor8
0.76
Y1 - ISO Factor9
0.88
Y2 - ISO Factor10
1.31
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