SEMRI Double row tapered roller bearings 52387D - 52637
Specifications
Series :52000
Cone Part Number : 52387D
Cup Part Number :52637
Design Unit : Inch
Cage Material : Stamped Steel
Dimensions
d - Bore : 3.8750 in / 98.425mm
D - Cup Outer Diameter : 6-3/8in / 161.925mm
B - Double Cone Width : 3.1250 in / 79.375 mm
C - Cup Width : 1.0313in / 26.195mm
T - Bearing Width across Cups : 3.1561 in / 80.165mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1 : 0.03 in / 0.800mm
r - Cup Backface "To Clear" Radius2 : 0.130 in / 3.30mm
da - Cone Frontface Backing Diameter : 4.29in / 109mm
Db - Cup Backface Backing Diameter : 5.67 in / 144.02mm
Ab - Cage-Cone Frontface Clearance : 0.12 in / 3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 :13000 lbf / 57900N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4: 87500 lbf /389000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 :22700lbf/ 10100N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 : 10600 lbf /47100 N
Factors
K - Factor7 : 1.23
e - ISO Factor8 : 0.47
Y1 - ISO Factor9 : 1.42
Y2 - ISO Factor10 : 2.12
G1 - Heat Generation Factor (Roller-Raceway) ：175
G2 - Heat Generation Factor (Rib-Roller End)： 41.7
Cg - Geometry Factor11 : 0.152
