Timken 78248C – 78513-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Detailed data of
78248C – 78513-B
Specifications
Series
78000C
Cone Part Number
78248C
Cup Part Number
78513-B
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
63.500 mm
D - Cup Outer Diameter
130.198 mm
D1 - Flange Outer Diameter
138.199 mm
B - Cone Width
33.236 mm
C - Cup Width
23.520 mm
C1 - Cup Flange Width
7.000 mm
T1 - Bearing Width to Flange
19.992 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.800 mm
r - Cup Backface "To Clear" Radius2
2.3 mm
da - Cone Frontface Backing Diameter
77 mm
db - Cone Backface Backing Diameter
92 mm
Da - Cup Frontface Backing Diameter
131.83 mm
Ab - Cage-Cone Frontface Clearance
5.3 mm
Aa - Cage-Cone Backface Clearance
5.6 mm
a - Effective Center Location3
8.4 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
61300 N
C1 - Dynamic Radial Rating (1 million revolutions)5
237000 N
C0 - Static Radial Rating
234000 N
C6
90900 N
Factors
K - Factor7
0.67
e - ISO Factor8
0.87
Y - ISO Factor9
0.69
G1 - Heat Generation Factor (Roller-Raceway)
71.3
G2 - Heat Generation Factor (Rib-Roller End)
17.6
Cg - Geometry Factor10
0.0926
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78248C – 78513-B
