Timken 385A – 384CD
Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
385
Cone Part Number
385A
Cup Part Number
384CD
Design Unit
Inch
Cage Material
Stamped Steel
Related Assembly Number(s)
385A-902B1
Dimensions
d - Bore
50.8 mm
D - Cup Outer Diameter
100 mm
B - Cone Width
21.946 mm
C - Double Cup Width
42.863 mm
T - Bearing Width across Cones
52.388 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
2.300 mm
r - Cup Backface "To Clear" Radius2
0.8 mm
db - Cone Backface Backing Diameter
61 mm
Da - Cup Frontface Backing Diameter
93.47 mm
Aa - Cage-Cone Backface Clearance
0.8 mm
a - Effective Center Location3
-3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4
28000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5
188000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6
48700 N
C7
16900 N
Factors
K - Factor8
1.65
e - ISO Factor9
0.75
Y1 - ISO Factor10
0.9
Y2 - ISO Factor11
1.34
Cg - Geometry Factor12
0.0859
