NNU4921K NSK Double row cylindrical roller bearings
Brand Name:NSK
Model Number:NNU4921K
Series:8500
Cone Part Number:8575
Cup Part Number:8522
Design Units:Imperial
Bearing Weight:12.5 Kg
Cage Type:Stamped Steel
d:234.95 mm
D:328.625 mm
PDF NNU4921K

Product Details

Series8500
Cone Part Number8575
Cup Part Number8522
Design UnitsImperial
Bearing Weight12.5 Kg
Cage TypeStamped Steel
d234.95 mm
D328.625 mm
B - Cone Width52.388 mm
C - Cup Width36.513 mm
B52.388 mm
R - Cone Backface To Clear Radius16.35 mm
r - Cup Backface To Clear Radius23.30 mm
da - Cone Frontface Backing Diameter247.90 mm
db - Cone Backface Backing Diameter259.08 mm
Da - Cup Frontface Backing Diameter314.96 mm
Db - Cup Backface Backing Diameter306.07 mm
Ab - Cage-Cone Frontface Clearance3.3 mm
Aa - Cage-Cone Backface Clearance6.1 mm
a - Effective Center Location37.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)432500 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5126000 lbf
C0 - Static Radial Rating240000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)622700 lbf
K - Factor71.44
e - ISO Factor80.41
Y - ISO Factor91.48
G1 - Heat Generation Factor (Roller-Raceway)1050.5
G2 - Heat Generation Factor (Rib-Roller End)172.4
Cg - Geometry Factor0.14
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Company Profile

COOPER BEARING LIMITED
Phone +1-785-435-3678
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