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NPB MB1215NX Bearing Metric Series | Prelubricated Bearing

NPB Part No.
MB1215NX

Specifications

Dimensional Diagram
Inch or Metric
Metric
Lubrication
Prelubricated
Bearing Length
15 mm
Nominal Bearing Bore
12 mm
Recommended Shaft Diameter
12.000 - 11.973 mm
Recommended Housing Diameter
14.000 - 14.018 mm
Installed Bearing Inside Diam.*  ID
4 mm
Materials
  • Liner: Acetal resin
  • Substrate: Sintered bronze
  • Backing: Plated low-carbon steel
Loads - P
  • Dynamic loads up to 20,000 PSI
  • Static loads up to 36,000 PSI
  • Compressive yield strength of 44,000 PSI
Speed - V
  • Up to 100 FPM greased
  • Up to 500 FPM in oil
Performance - PV
  • PV to 80,000 PSI - FPM - continuous operation
Temperature Range
–40°F to +210°F intermittent to 260°F
Coefficient of Friction
  • 0.015 - 0.15 Static
  • 0.01 - 0.10 Dynamic
Shaft Finish
A surface finish of better than 16 micro inches is recommended
* When installed in a rigid steel or cast-iron housing
Length Tolerances: The length tolerance for all NX bearings is ±0.25 mm.

Interchange

National Precision Bearing Part No MB1215NX is an interchangable replacement for these common bearing part numbers:

Garlock Bearing
MB1215DX