SEMRI Double row tapered roller bearings 767D - 752
Specifications
Series :755
Cone Part Number : 767D
Cup Part Number : 752
Design Unit : Inch
Cage Material : Stamped Steel
Related Assembly Number(s):
767D-90058
767D-90171
767D-90183
767D-902A3
767D-905A2
Dimensions
d - Bore : 3 1/2 in / 88.900mm
D - Cup Outer Diameter : 6-3/8 in / 161.925 mm
B - Double Cone Width : 4.2500 in / 107.950 mm
C - Cup Width : 1.5000 in / 38.100 mm
T - Bearing Width across Cups : 3.9979 in / 101.547 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1 : 0.06 in / 1.5mm
r - Cup Backface "To Clear" Radius2 : 0.130 in / 3.30mm
da - Cone Frontface Backing Diameter : 3.988 in / 101.3mm
Db - Cup Backface Backing Diameter : 5.67 in / 144.02 mm
Ab - Cage-Cone Frontface Clearance : -0.03 in / -0.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 : 19900lbf/ 88400N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4: 128000 lbf /570000 N
C90(2) - Dynamic Radial Rating(Two-Row, 90 million revolutions)5 :33200lbf/ 147000N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 : 11100 lbf /49500 N
Factors
K - Factor7 : 1.71
e - ISO Factor8 : 0.34
Y1 - ISO Factor9 : 1.98
Y2 - ISO Factor10 : 2.95
G1 - Heat Generation Factor (Roller-Raceway) ：177
G2 - Heat Generation Factor (Rib-Roller End)： 32.4
Cg - Geometry Factor11 : 0.0945
