4CR950A KOYO Four-row cylindrical roller bearings

Brand Name: KOYO
Model Number: 4CR950A
Series: HM237500
Cone Part Number: HM237540
Cup Part Number: HM237511
Design Units: Imperial
Bearing Weight: 16 Kg
Cage Type: Stamped Steel
d: 171.450 mm
D: 288.925 mm
PDF 4CR950A

Product Details

Series HM237500
Cone Part Number HM237540
Cup Part Number HM237511
Design Units Imperial
Bearing Weight 16 Kg
Cage Type Stamped Steel
d 171.450 mm
D 288.925 mm
B - Cone Width 63.5 mm
C - Cup Width 47.625 mm
B 63.505 mm
R - Cone Backface To Clear Radius1 7.110 mm
r - Cup Backface To Clear Radius2 3.30 mm
da - Cone Frontface Backing Diameter 188.98 mm
db - Cone Backface Backing Diameter 199.9 mm
Da - Cup Frontface Backing Diameter 271.30 mm
Db - Cup Backface Backing Diameter 265.94 mm
Ab - Cage-Cone Frontface Clearance 5.1 mm
Aa - Cage-Cone Backface Clearance 5.1 mm
a - Effective Center Location3 -11.7 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 56900 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 219000 lbf
C0 - Static Radial Rating 278000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 31100 lbf
K - Factor7 1.83
e - ISO Factor8 0.32
Y - ISO Factor9 1.88
G1 - Heat Generation Factor (Roller-Raceway) 751.2
G2 - Heat Generation Factor (Rib-Roller End) 101.5
Cg - Geometry Factor 0.117
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Phone 409-782-6227
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