NNU4934 KOYO Double-row cylindrical roller bearings
Brand Name:KOYO
Model Number:NNU4934
Series:L624500
Cone Part Number:L624549
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:41200 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:10700 lbf
d:4.7500 in
B - Cone Width:0.8438 in
PDF NNU4934

Product Details

SeriesL624500
Cone Part NumberL624549
Design UnitsImperial
Cage TypeStamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)141200 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)210700 lbf
d4.7500 in
B - Cone Width0.8438 in
R - Cone Backface To Clear Radius30.06 in
da - Cone Frontface Backing Diameter5 in
db - Cone Backface Backing Diameter5.08 in
Ab - Cage-Cone Frontface Clearance0.1 in
Aa - Cage-Cone Backface Clearance0.02 in
a - Effective Center Location40.33 in
C90 - Dynamic Radial Rating (90 million revolutions)56140 lbf
C1 - Dynamic Radial Rating (1 million revolutions)623700 lbf
C0 - Static Radial Rating46400 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)74570 lbf
K - Factor81.34
G1 - Heat Generation Factor (Roller-Raceway)195
G2 - Heat Generation Factor (Rib-Roller End)139
Cg - Geometry Factor0.151
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Company Profile

FGDB Pump Machinery Equipment Co., Ltd.
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