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Mar . 13, 2024 11:53 Back to list

Spherical Plain Bearings


RBC Aerospace Bearings offers a full line of Mil Spec standards and many specialty and custom spherical plain bearings to the aerospace industry and all major OEM specifications. Both metal-to-metal and self-lubricating bearings are available. Configurations include swaged construction, load leader slot, split ball and high misalignment designs, with high temperature and light weight titanium and aluminum series offered. Sealed versions are also available.



Various materials are used in RBC swaged spherical bearings including races made from 17-4PH, 15-5PH, aluminum-bronze, AISI303, Inconel® -718, aluminum, and titanium, and spherical plain balls made from 440C, 52100 chrome plated, 13-8PHMo, Stellite®, Beryllium-Copper, aluminum and titanium. Race and ball surfaces may also be provided with a dry film lubricant for high temperature applications or various coatings to enhance corrosion resistance and reduce wear. (Inconel® is a registered trademark of the INCO family of companies. Stellite® is a registered trademark of the Deloro Stellite Company.)

RBC manufactures 4 different self-lubricating liner materials that are qualified to AS81820 (formerly Mil-B- 81820). In addition, over 60 other self-lubricating materials are available for specific characteristic; such as high temperature for turbine engine applications or machinability for airframe, helicopter, and landing gear applications.

RBC spherical plain bearings have been qualified to stringent SAE, military, NAS, AECMA, and customer design and performance standards in RBC test laboratories. For information on special plain bearings or for information on the many standard series of commercial plain bearings which are available from RBC, please consult RBC Customer Service at 866.RBC.AERO (866.722.2376). Click this link for an RBC Engineering overview of metal-to-metal and self-lubricated bearings and to learn more about our advanced liner systems, Engineering Information, or click the link below for bearing specifications.

TABLE OF CONTENTS

Self-Lubricating

      AS81820 Series

  • MS14104/MS14101   Narrow Series
    Chamfered & Grooved
    Self-Lubricated
  • MS14102/MS14103  Wide Series
    Chamfered & Grooved
    Self-Lubricated
  • M81820/4, M81820/1 Lined Bore Narrow Series 
    Chamfered & Grooved
    Self-Lubricated
  • M81820/2, M81820/3
    Lined Bore Wide Series
    Chamfered & Grooved
    Self-Lubricated

     AS8942 Series

  • MS21233/MS21232   Narrow Series
    Chamfered & Grooved
    Self-Lubricated
  • MS21231/MS21230
    Wide Series
    Chamfered & Grooved
    Self-Lubricated

     Sealed Series

  • Sealed Narrow Series Chamfered & Grooved
    Self-Lubricated
  • Sealed Wide Series
    Chamfered & Grooved
    Self-Lubricated

     EN Standards

  • EN2022 Metric, Light Series
    Chamfered & Grooved
    Self-Lubricated
  • EN2023
    Metric, Normal Series
    Chamfered & Grooved
    Self-Lubricated
  • EN4613
    Metric, Narrow Series
    Chamfered & Grooved
    Self-Lubricated
  • EN4614
    Metric, Wide Series
    Chamfered & Grooved
    Self-Lubricated

Metal-to-Metal

      AS81936 Series

  • M81936/1
    BeCu Grooved Series
    Lubrication Grooves & Holes on
    Race and Ball
  • M81936/1R
    BeCu Grooved Series
    Lubrication Grooves & Holes on
    Race Only
  • M81936/2
    BeCu Chamfered Series
    Lubrication Grooves & Holes on
    Race and Ball
  • M81936/2R
    BeCu Chamfered Series
    Lubrication Grooves & Holes on
    Race Only

     AS8976 Series

  • MS21154B
    Narrow Series
    Alloy Steel & Aluminum Bronze Options
    Grooved
  • MS21155B
    Narrow Series
    Alloy Steel & Aluminum Bronze Options
    Chamfered

     EN Standards

  • EN2335
    Metric, Swaged Series

     Wide Series

  • Wide Series
    CRES & Aluminum Bronze Options
    Chamfered & Grooved

High Misalignment

     Self-Lubricating

  • High Misalignment Series
    Chamfered & Grooved
    Self-Lubricated

     EN Standards

  • EN2501
    High Misalignment
    Metric
    Self-Lubricated

      Metal-to-Metal

  • High Misalignment Series
    Chamfered & Grooved
    Metal-to-Metal

Light Weight

     Light Weight Self-Lubricating

  • Aluminum Narrow Series  
    Chamfered & Grooved
    Self-Lubricated
  • Aluminum Wide Series
    Chamfered & Grooved
    Self-Lubricated
  • Titanium Narrow Series
    Lined Bore
    Chamfered & Grooved
    Self-Lubricated
  • Titanium Wide Series
    Lined Bore
    Chamfered & Grooved
    Self-Lubricated

     Titanium Feature Page

High Temperature

  • High Temperature Narrow Series  
    Chamfered & Grooved
    Self-Lubricated
  • High Temperature Wide Series
    Chamfered & Grooved
    Self-Lubricated

Loader Slot Spherical Bearings

  • Single V-Groove Series
    CRES
  • Double V-Groove Series
    CRES

Split Ball Bearings
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