Timken 779D – 772A
Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
775
Cone Part Number
779D
Cup Part Number
772A
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
98.425 mm
D - Cup Outer Diameter
174.625 mm
B - Double Cone Width
102.362 mm
C - Cup Width
38.100 mm
T - Bearing Width across Cups
101.600 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
1.5 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
112 mm
Db - Cup Backface Backing Diameter
157.99 mm
Ab - Cage-Cone Frontface Clearance
1.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3
89700 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4
603000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5
156000 N
C6
59200 N
Factors
K - Factor7
1.51
e - ISO Factor8
0.39
Y1 - ISO Factor9
1.75
Y2 - ISO Factor10
2.61
G1 - Heat Generation Factor (Roller-Raceway)
227
G2 - Heat Generation Factor (Rib-Roller End)
41.3
Cg - Geometry Factor11
0.107
