Timken 688TD – 672P
Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
675
Cone Part Number
688TD
Cup Part Number
672P
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
100.211 mm
D - Cup Outer Diameter
168.275 mm
B - Double Cone Width
95.250 mm
C - Cup Width
30.163 mm
T - Bearing Width across Cups
95.250 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.800 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
113 mm
Db - Cup Backface Backing Diameter
149.10 mm
Ab - Cage-Cone Frontface Clearance
3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3
64800 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4
435000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5
113000 N
C6
52200 N
Factors
K - Factor7
1.24
e - ISO Factor8
0.47
Y1 - ISO Factor9
1.43
Y2 - ISO Factor10
2.14
Cg - Geometry Factor11
0.106
