300RV4221 NSK ROLL NECK BEARINGS for ROLLING MILL

Brand Name: NSK
Model Number: 300RV4221
Series: 153000
Cone Part Number: EE153044
Cup Part Number: 153100
Design Units: Imperial
Bearing Weight: 18.20 Kg
Cage Type: Stamped Steel
d: 120.650 mm
D: 254.000 mm

Product Details

Series 153000
Cone Part Number EE153044
Cup Part Number 153100
Design Units Imperial
Bearing Weight 18.20 Kg
Cage Type Stamped Steel
d 120.650 mm
D 254.000 mm
B - Cone Width 82.550 mm
C - Cup Width 57.150 mm
B 77.788 mm
R - Cone Backface To Clear Radius1 9.650 mm
r - Cup Backface To Clear Radius2 6.35 mm
da - Cone Frontface Backing Diameter 140.97 mm
db - Cone Backface Backing Diameter 156.97 mm
Da - Cup Frontface Backing Diameter 230.89 mm
Db - Cup Backface Backing Diameter 225.04 mm
Ab - Cage-Cone Frontface Clearance -2 mm
Aa - Cage-Cone Backface Clearance 11.4 mm
a - Effective Center Location3 -24.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 41400 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 160000 lbf
C0 - Static Radial Rating 232000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 22800 lbf
K - Factor7 1.82
e - ISO Factor8 0.32
Y - ISO Factor9 1.87
G1 - Heat Generation Factor (Roller-Raceway) 490.5
G2 - Heat Generation Factor (Rib-Roller End) 65.1
Cg - Geometry Factor 0.129
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Phone 753-298-7821
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