Airframe Track Rollers - NBL

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Series NBL



Part Number: 28 NBL 4855 YJ

d Nom.: 1.75
D Max.: 3.4375
B: 3
r2: 0.032
Approx Weight [lbs]: 5.8
Speed Limit [rpm]: 1650
Load Limit [lbf]: 92000
Inside Dia. Max: 1.75
Inside Dia. Min: 1.7493
Outside Dia. Min: 3.4365
B1 Outer Ring: 2.799
D1 End Plate Dia.: 3.188
P Inner Ring Groove Width: 0.375
T Effective Track Width: 2.547
Capacity As Track Roller: 69000
Track Capacity at 40 Rc [lbf]: 27000
Boss Dia. Min: 2.281
Clamping Force Max.: 25000
Recommended Shaft Bore
Loose Fit f6 Max: 1.7496
Loose Fit f6 Min: 1.749
> Tight Fit j6 Max: 1.7504
Tight Fit j6 Max: 1.7498