NNU49/6 KOYO Double-row cylindrical roller bearings
Brand Name:KOYO
Model Number:NNU49/6
Series:18700
Cone Part Number:18780
Cup Part Number:18724
Design Units:Imperial
Bearing Weight:0.5 Kg
Cage Type:Stamped Steel
d:46.038 mm
D:88.900 mm

Product Details

Series18700
Cone Part Number18780
Cup Part Number18724
Design UnitsImperial
Bearing Weight0.5 Kg
Cage TypeStamped Steel
d46.038 mm
D88.900 mm
B - Cone Width17.463 mm
C - Cup Width13.495 mm
B17.465 mm
R - Cone Backface To Clear Radius12.290 mm
r - Cup Backface To Clear Radius21.27 mm
da - Cone Frontface Backing Diameter52.07 mm
db - Cone Backface Backing Diameter55.88 mm
Da - Cup Frontface Backing Diameter83.06 mm
Db - Cup Backface Backing Diameter77.98 mm
Ab - Cage-Cone Frontface Clearance2.3 mm
Aa - Cage-Cone Backface Clearance0.5 mm
a - Effective Center Location3-0.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)43190 lbf
C1 - Dynamic Radial Rating (1 million revolutions)512300 lbf
C0 - Static Radial Rating15200 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)62210 lbf
K - Factor71.44
e - ISO Factor80.41
Y - ISO Factor91.48
G1 - Heat Generation Factor (Roller-Raceway)28.6
G2 - Heat Generation Factor (Rib-Roller End)23.4
Cg - Geometry Factor0.0789
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Company Profile

FGDB Pump Machinery Equipment Co., Ltd.
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