Timken 378A - 372A Bearing

Timken 378A - 372A Bearing Specification

Series:375     
Cone Part Number:378A     
Cup Part Number:372A     
Design Units:Imperial     
K - Factor1:1.73     
G2 - Heat Generation Factor (Rib-Roller End):15.4     
Cage Type:Stamped Steel     
R - Cone Backface "To Clear" Radius1:0.090 in      2.290 mm     
Aa - Cage-Cone Backface Clearance:0.03 in      0.76 mm     
Z - Number of Rollers Per Row:18     
T - Bearing Width:0.8750 in      22.225 mm     
Da - Cup Frontface Backing Diameter:3.56 in      90.42 mm     
Cg - Geometry Factor:0.0816     
e - ISO Factor2:0.34     
Ca90 - Dynamic Thrust Rating (90 million revolutions)3:2970 lbf      13200 N     
C90 - Dynamic Radial Rating (90 million revolutions)1:5120 lbf      22800 N     
a - Effective Center Location3:-0.15 in      -3.80 mm     
Bearing Weight:1.6000 lb      0.7000 Kg     
G1 - Heat Generation Factor (Roller-Raceway):37.6     
Ab - Cage-Cone Frontface Clearance:0.06 in      1.52 mm     
Db - Cup Backface Backing Diameter:3.39 in      86.11 mm     
C0 - Static Radial Rating:22700 lbf      101000 N     
Y - ISO Factor3:1.77     
C - Cup Width:0.7500 in      19.050 mm     
d - Cone Bore:1.9680 in      49.987 mm     
B - Cone Width:0.8750 in      22.225 mm     
da - Cone Frontface Backing Diameter:2.20 in      55.88 mm     
D - Cup Outer Diameter:3.8125 in      96.838 mm     
C1 - Dynamic Radial Rating (1 million revolutions)2:19800 lbf      87900 N     
r - Cup Backface "To Clear" Radius2:0.060 in      1.52 mm     
db - Cone Backface Backing Diameter:2.36 in      59.94 mm     
Type:  

Timken 378A - 372A Bearing Description

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