KOYO NJ308R cylindrical roller bearings

Manufacturers of all are represented in our partial 655 Series list of clients. Contact Gary for a complete KOYO NJ308R cylindrical roller bearings list of clients and projects.
Series | 655 |
Cone Part Number | 655 |
Cup Part Number | 652-B |
Design Units | Imperial |
Bearing Weight | 8.2 lb |
Cage Type | Stamped Steel |
d | 2.7500 in |
D | 6.0000 in |
D1 – Flange Outer Diameter | 6.2772 in |
B – Cone Width | 1.6250 in |
C – Cup Width | 1.2500 in |
C1 – Cup Flange Width | 0.2812 in |
T1 – Bearing Width | 1.625 in |
T – Bearing Width to Flange | 0.6562 in |
R – Cone Backface To Clear Radius1 | 0.14 in |
r – Cup Backface To Clear Radius2 | 0.130 in |
da – Cone Frontface Backing Diameter | 3.23 in |
db – Cone Backface Backing Diameter | 3.46 in |
Da – Cup Frontface Backing Diameter | 5.57 in |
Ab – Cage-Cone Frontface Clearance | 0.1 in |
Aa – Cage-Cone Backface Clearance | 0.17 in |
a – Effective Center Location3 | -0.31 in |
C90 – Dynamic Radial Rating (90 million revolutions)4 | 14400 lbf |
C1 – Dynamic Radial Rating (1 million revolutions)5 | 55500 lbf |
C0 – Static Radial Rating | 75300 lbf |
Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 10100 lbf |
K – Factor7 | 1.43 |
e – ISO Factor8 | 0.41 |
Y – ISO Factor9 | 1.47 |
G1 – Heat Generation Factor (Roller-Raceway)10 | 137 |
G2 – Heat Generation Factor (Rib-Roller End) | 27.3 |
Cg – Geometry Factor11 | 0.0919 |
Detailed Parameters
parameter:
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