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NTN NK80/25R needle roller bearings - Industrial Bearing

  NTN NK80/25R needle roller bearings

NTN NK80/25R needle roller bearings pdf

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

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