KOYO 40BM4720 needle roller bearings
Brand Name |
KOYO |
Model Number |
40BM4720 |
Min.Order Quantity |
1 pcs |
Price |
Negotiable |
Product Features
KOYO 40BM4720 bearing Size Chart (mm/inches) |
---|
Series | 2500 |
Cone Part Number | 2578 |
Cup Part Number | 2524YD |
Design Units | Imperial |
Bearing Weight | 2.63 lb |
Cage Type | Stamped Steel |
Ab - Cage-Cone Frontface Clearance | 0.06 in |
d | 1.1250 in |
D | 2.7500 in |
B - Cone Width | 0.9983 in |
C - Double Cup Width | 2.2500 in |
T - Bearing Width across Cones | 2.6250 in |
R - Cone Backface To Clear Radius1 | 0.09 in |
r - Cup Frontface To Clear Radius2 | 0.03 in |
db - Cone Backface Backing Diameter | 1.54 in |
Da - Cup Frontface Backing Diameter | 2.56 in |
Aa - Cage-Cone Backface Clearance | 0.02 in |
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 4880 lbf |
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 32800 lbf |
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 8500 lbf |
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 2280 lbf |
K - Factor7 | 2.14 |
e - ISO Factor8 | 0.27 |
Y1 - ISO Factor9 | 2.47 |
Y2 - ISO Factor10 | 3.67 |
G1 - Heat Generation Factor (Roller-Raceway)11 | 23.6 |
G2 - Heat Generation Factor (Rib-Roller End) | 9.63 |
Cg - Geometry Factor12 | 0.0656 |