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A81420DD-NBRP
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A81420DD-NBRP
Precision Bearings
Precision, Steel Ball Bushing Bearing, 0.500 in, Not Self-Aligning, Closed, Not Corrosion Resistant, Integral Seals
Lead Time:
Next Day
Lead times may increase with higher quantities. Lead time displayed in business days.
- Precision Steel Ball Bushing bearings offer great improvements in efficiency, productivity, and accuracy over high-friction plain bearings flat-ways.
- The all-steel design makes the bearing product line perfect for replacing plain bearings in high temperature applications.
- The steel sleeve anti-friction recirculating ball bushing provides rigid low drag movement – ~100x lower drag coefficient than a plain contact bearing.
- A coefficient of friction as low as .001. When replacing high friction plain bearings, Precision Steel Ball Bushing Bearings dramatically improve machine productivity and efficiency.
Dimension |
Value |
C |
31.75 mm (1.250 in) |
C1 |
24.56 mm (0.967 in) |
C2 |
1.17 mm (0.046 in) |
d |
12.70 mm (0.500 in) |
D |
22.23 mm (0.875 in) |
Dimension |
Value |
C |
31.75 mm (1.250 in) |
C1 |
24.56 mm (0.967 in) |
C2 |
1.17 mm (0.046 in) |
d |
12.70 mm (0.500 in) |
D |
22.23 mm (0.875 in) |
Specification |
Value |
Adjustable/Not Adjustable |
Not Adjustable |
Closed/Open |
Closed |
Number of Ball Circuits |
4 |
Nylon Ball or Alternating Nylon Ball |
Nylon Balls |
Roll Pack |
Roll Pack |
Food Grade Rated |
Not Food Grade |
Self Alignment |
Not self-aligning |
Single/Twin |
Single |
Temperature Max |
85 °C / 185 °F |
Use with shafting class |
S |
Wipers, Seals |
DD |
Weight |
0.036 kg / 0.08 lbs |
Nominal Diameter |
12.700 mm / 0.5 in |
Outer Diameter |
22.225 mm / 0.875 in |
Length |
31.750 mm / 1.25 in |
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