Timken 28138
Tapered Roller Bearings - Single Cones - Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
28000
Cone Part Number
28138
Design Units
Imperial
Cage Type
Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
111000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
28700 N
Dimensions
d - Cone Bore
34.976 mm
B - Cone Width
20.940 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius3
1.5 mm
da - Cone Frontface Backing Diameter
41 mm
db - Cone Backface Backing Diameter
43.5 mm
Ab - Cage-Cone Frontface Clearance
1.8 mm
Aa - Cage-Cone Backface Clearance
1.5 mm
a - Effective Center Location4
-4.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)5
16500 N
C1 - Dynamic Radial Rating (1 million revolutions)6
63500 N
C0 - Static Radial Rating
68900 N
C7
11300 N
Factors
K - Factor8
1.45
G1 - Heat Generation Factor (Roller-Raceway)
20.7
G2 - Heat Generation Factor (Rib-Roller End)
12.5
Cg - Geometry Factor9
0.0709
