44FC3221 KOYO Four-row cylindrical roller bearings
Brand Name:KOYO
Model Number:44FC3221
Cone Part Number:25877A
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:33300 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:8640 lbf
d:1.3750 in
B - Cone Width:0.9688 in
R - Cone Backface To Clear Radius3:0.03 in

Product Details

Cone Part Number25877A
Design UnitsImperial
Cage TypeStamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)133300 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)28640 lbf
d1.3750 in
B - Cone Width0.9688 in
R - Cone Backface To Clear Radius30.03 in
da - Cone Frontface Backing Diameter1.65 in
db - Cone Backface Backing Diameter1.67 in
Ab - Cage-Cone Frontface Clearance0.09 in
Aa - Cage-Cone Backface Clearance0.02 in
a - Effective Center Location4-0.32 in
C90 - Dynamic Radial Rating (90 million revolutions)54960 lbf
C1 - Dynamic Radial Rating (1 million revolutions)619100 lbf
C0 - Static Radial Rating21900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)72460 lbf
K - Factor82.01
G1 - Heat Generation Factor (Roller-Raceway)26.4
G2 - Heat Generation Factor (Rib-Roller End)10.9
Cg - Geometry Factor0.0695
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Company Profile

FGDB Pump Machinery Equipment Co., Ltd.
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