Airframe Needle Roller Bearings - NBK

IntroductionSelection GuideEngineering DataInterchangeCalculate Your SavingsReduce Your inventoryBrochure

Series NBK



Part Number: 56 NBK 2078 YZP

d Nom.: 3.5
D Max.: 4.875
B: 1.25
r1: 0.044
Approx Weight [lbs]: 2.65
Speed Limit [rpm]: 850
Load Limit [lbf]: 80100
Inside Dia. Max: 3.5
Inside Dia. Min: 3.4992
Outside Dia. Min: 4.874
B1 Outer Ring: 1.049
D1 End Plate Dia.: 4.219
P Inner Ring Groove Width: 0.375
G Outer Ring Groove Width: 0.156
Recommended Shaft Diameter
Loose Fit f6 Max: 3.4986
Loose Fit f6 Min: 3.4977
Tight Fit j6 Max: 3.5005
Loose Fit j6 Min: 3.4996
Boss Dia. Max: 4.141
Boss Dia. Min: 3.969
Clamping Force Max.: 25800
Recommended Housing Bore
Press Fit N6 Max: 4.8732
Press Fit N6 Min: 4.8742
Loose Fit H6 Max: 4.875
Loose Fit H6 Min: 4.876

All dimensions are in inches.

All exposed surfaces plated for corrosion resistance.