Timken 6389 – 6321
Tapered Roller Bearings-TS(Tapered Single)Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
6300
Cone Part Number
6389
Cup Part Number
6321
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
66.675 mm
D - Cup Outer Diameter
131.763 mm
B - Cone Width
56.007 mm
C - Cup Width
44.450 mm
T - Bearing Width
53.975 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
6.4 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
77 mm
db - Cone Backface Backing Diameter
91 mm
Da - Cup Frontface Backing Diameter
125.00 mm
Db - Cup Backface Backing Diameter
115.06 mm
Ab - Cage-Cone Frontface Clearance
1.3 mm
Aa - Cage-Cone Backface Clearance
3.3 mm
a - Effective Center Location3
-19.3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
83300 N
C1 - Dynamic Radial Rating (1 million revolutions)5
321000 N
C0 - Static Radial Rating
404000 N
C6
46300 N
Factors
K - Factor7
1.8
e - ISO Factor8
0.32
Cg - Geometry Factor9
0.0827
