KOYO M1861 Needle Roller Bearings - Wnl Trading Corporation

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KOYO M1861 Needle Roller Bearings Specifications

Series:28000
Cone Part Number:28156
Cup Part Number:28317
Design Units:Imperial
Bearing Weight:0.4 Kg
Cage Type:Stamped Steel
d:39.980 mm
D:80.035 mm
B - Cone Width:19.649 mm
C - Cup Width:15.875 mm
B:20.142 mm
R - Cone Backface To Clear Radius1:2.290 mm
r - Cup Backface To Clear Radius2:1.52 mm
da - Cone Frontface Backing Diameter:44.96 mm
db - Cone Backface Backing Diameter:49.02 mm
Da - Cup Frontface Backing Diameter:73.90 mm
Db - Cup Backface Backing Diameter:69.09 mm
Ab - Cage-Cone Frontface Clearance:1.8 mm
Aa - Cage-Cone Backface Clearance:0.3 mm
a - Effective Center Location3:-3.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:4390 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:16900 lbf
C0 - Static Radial Rating:15500 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:3020 lbf
K - Factor7:1.45
e - ISO Factor8:0.4
Y - ISO Factor9:1.49
G1 - Heat Generation Factor (Roller-Raceway):20.7
G2 - Heat Generation Factor (Rib-Roller End):12.5
Cg - Geometry Factor:0.0709

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