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Bunting Bearings Powdered Metal SAE 841 Extra Lubricant with PTFE Sleeve (Plain) Bearing

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Product Specifications
UNSPSC Code
31171509
Brand Name
Bunting Bearings

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Key Features

  • SAE 841 bronze bearing for supporting radial and axial loads with a load-at-velocity value of 50,000 PV
  • Sintered with powdered metals for strength, durability, and corrosion resistance
  • Vacuum-infused with SAE 90 oil to provide lubricant from the bearing to the shaft during rotation
  • Oil contains PTFE to reduce friction for applications that require slow speeds and frequent starts and stops
  • Operating temperature ranges from 10 degrees F to 220 F (-12 degrees C to 104 C)

Product Description

This bronze Bunting Bearings powdered metal sleeve (plain) bearing with PTFE added to the lubricant is formed and sized to SAE (Society of Automotive Engineers) 841 specifications for supporting radial and axial loads. This bearing has been sintered with powdered metals for strength, durability, and corrosion resistance. It is vacuum-infused with SAE 90 oil, which has a higher viscosity than the more commonly used SAE 30 oil to accommodate applications that involve above-average friction and higher continuous operating temperatures. The oil, which remains in the pores of the bearing to provide lubricant from the bearing to the shaft during operation, is supplemented with finely dispersed polytetrafluoroethylene (PTFE) to reduce friction for applications that require slow speeds and frequent starts and stops. This plain bearing has a maximum load value of 2,000 psi (pounds per square inch), a maximum velocity value of 1,200 sfpm (surface feet per minute), and a maximum load-at-velocity (PV) value of 50,000, and operates at temperatures ranging from 10 degrees F to 220 F (-12 degrees C to 104 C). Designed with a regular straight bore, this bearing fits to conventional cylindrical shafts. This oil-filled powdered metal sleeve (plain) bearing is for use in various applications such as heavy-lifting equipment, pumps, aircraft, and motors, among others.

Specifications

Chemical and physical properties, and manufacture AMS 4805
Specification defining sampling procedures and tables for attribute inspection ANSI/ASQC Z1.4
Specifications for sintered, oil-infused bronze bearings ASTM B438
Specification for iron-base powder metallurgy (PM), oil-infused bearings ASTM B439
Metal Powder Industries Federation CT-1000-K26
Chemical and physical properties, and manufacture ISO 9001
Chemical and physical properties, and manufacture MIL-B-5687D

Plain bearings (with no rolling elements) are used to handle radial or axial loads by providing a low-friction motion between two surfaces as shafts rotate or move back and forth through the center of the bearing. The most common types are bushings (also called bush), with a sleeve or flanged design, and are measured by their bore (inside diameter), outside diameter, length, and width (thickness). Plain bearings are used in automobiles, construction equipment, medical applications, railroad cars, turbines, various military applications, aeronautics, space exploration, among others.

Bunting Bearings LLC manufactures a variety of bearings that meet standards for quality assurance established by the SAE, the American Society for Testing and Materials (ASTM), and the International Organization for Standardization (ISO), among others. Founded in 1907, Bunting Bearings LLC is based in Holland, Ohio.

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