NTN NK80/25R needle roller bearings
Request 8520 Cup Part Number A Quote For Your Special NTN NK80/25R needle roller bearings 8575 Cone Part Number Needs Today! Free 8500 Series Quotes. ISO 9001 certified.
Series | 8500 |
Cone Part Number | 8575 |
Cup Part Number | 8520 |
Design Units | Imperial |
Bearing Weight | 12.3 Kg |
Cage Type | Stamped Steel |
d | 234.95 mm |
D | 327.025 mm |
B – Cone Width | 52.388 mm |
C – Cup Width | 36.513 mm |
B | 52.388 mm |
R – Cone Backface To Clear Radius1 | 6.35 mm |
r – Cup Backface To Clear Radius2 | 3.30 mm |
da – Cone Frontface Backing Diameter | 247.90 mm |
db – Cone Backface Backing Diameter | 259.08 mm |
Da – Cup Frontface Backing Diameter | 314.96 mm |
Db – Cup Backface Backing Diameter | 305.05 mm |
Ab – Cage-Cone Frontface Clearance | 3.3 mm |
Aa – Cage-Cone Backface Clearance | 6.1 mm |
a – Effective Center Location3 | 7.6 mm |
C90 – Dynamic Radial Rating (90 million revolutions)4 | 32500 lbf |
C1 – Dynamic Radial Rating (1 million revolutions)5 | 126000 lbf |
C0 – Static Radial Rating | 240000 lbf |
Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 22700 lbf |
K – Factor7 | 1.44 |
e – ISO Factor8 | 0.41 |
Y – ISO Factor9 | 1.48 |
G1 – Heat Generation Factor (Roller-Raceway) | 1050 |
G2 – Heat Generation Factor (Rib-Roller End) | 172 |
Cg – Geometry Factor | 0.14 |
Detailed Parameters
parameter:
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