PNB-4T plain sphercial bearing: 1/4″ bore x .656″ OD x .343″ BW x .250″ RW
AURORA PNB-4T plain narrow sphercial bearing, maintenance free with PTFE liner
Aurora PNB-4T narrow spherical bearing drawing
partnumber
PNB-4T
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- Bore: .250″ (6.350 mm)
- Outside diameter (OD): .656″ (16.67 mm)
- Ball width (BW): .343″ (8.71 mm)
- Race width (RW): .250″ (6.35 mm)
- Ball diameter: .500″ (12.70 mm)
- Shoulder diameter: .364″ (9.25 mm)
- Misalignment α: 10°
- Fit / no load breakaway torque: .25-5 In-Lbs
- Radial static limit load: 6040 lbs (26867 N)
- Axial static limit load: 430 lbs (1913 N)
- Approximate weight: .02 lbs (10 g)
- Material
- Ball: Alloy steel, heat treated, hard chrome plated
- Race: 17-4 PH stainless steel, heat treated
- PTFE liner: AT3200 (PTFE / Nomex laminate) qualified to SAE-AS81820 Type A for highest performance
- Maximum operating temperature: 163° C (325° F)
- Manufacturer: Aurora Bearing Company
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