Design World

  • Home
  • Technologies
    • 3D CAD
    • Electronics • electrical
    • Fastening & Joining
    • Factory automation
    • Linear Motion
    • Motion Control
    • Test & Measurement
    • Sensors
    • Fluid power
  • Learn
    • Ebooks / Tech Tips
    • Engineering Week
    • Future of Design Engineering
    • MC² Motion Control Classrooms
    • Podcasts
    • Videos
    • Webinars
  • LEAP AWARDS
  • Leadership
    • 2022 Voting
    • 2021 Winners
  • Design Guide Library
  • Resources
    • 3D Cad Models
      • PARTsolutions
      • TraceParts
    • Digital Issues
      • Design World
      • EE World
    • Women in Engineering
  • Supplier Listings

PTFE Linings Add Value, Increase Performance

By Design World Staff | April 3, 2008

Share



Un-lubricated metal race bearings are typically used in applications with low loads and minimal movement. In these applications, ball discoloration, with portions of the ball turning black or brown, indicates that lubrication is required. In lubricated applications, such markings indicate a greater amount, frequency, or grade of lubricant is required. With increasing loads, lubricant film integrity decreases, to the point where parts have metal on metal contact, and in worst case, overheat and gall. As loads increase, the value of the ptfe lined alternative increases. An unloaded non lined part exhibits no breakaway torque or force required to initiate movement at rest. As loads overcome the strength of the applied lubrication film, the breakaway torque increases. Lined bearings typically have a pre loaded fit or breakaway torque. With light applied loads, care must be taken to determine if this torque will impede proper action of the assembly. However, as loads increase, a lined bearing will actually have a lower operating torque than an unlined bearing as the point where the lubricant film is compromised is approached and then surpassed.

captioned PTFE cut.jpg

Cross sectional drawing of PTFE lined bearing showing self
lubricating liner bonded to raceway.


Beyond the noted benefits, lined bearings are also maintenance free. With lubrication delivery part of the liner system, supplemental lubrication requirements are eliminated.

www.aurorabearing.com

::Design World::


Filed Under: Bearings, Motion control • motor controls

 

Tell Us What You Think!

Related Articles Read More >

Motion & Control Enterprises purchases RSA and Global Controls, fourth acquisition this year
49503-ACS Motion-CMxa
ACS Motion Control releases SPiiPlusCMxa EtherCAT motion controller
SDP-SI-040
SDP/SI launches brushless DC motors and motion control products series
PACMotion-servos
High-performance integrated motion control line from Emerson

DESIGN GUIDE LIBRARY

“motion

Enews Sign Up

Motion Control Classroom

Design World Digital Edition

cover

Browse the most current issue of Design World and back issues in an easy to use high quality format. Clip, share and download with the leading design engineering magazine today.

EDABoard the Forum for Electronics

Top global problem solving EE forum covering Microcontrollers, DSP, Networking, Analog and Digital Design, RF, Power Electronics, PCB Routing and much more

EDABoard: Forum for electronics

Sponsored Content

  • Global supply needs drive increased manufacturing footprint development
  • How to Increase Rotational Capacity for a Retaining Ring
  • Cordis high resolution electronic proportional pressure controls
  • WAGO’s custom designed interface wiring system making industrial applications easier
  • 10 Reasons to Specify Valve Manifolds
  • Case study: How a 3D-printed tool saved thousands of hours and dollars

Design World Podcasts

May 17, 2022
Another view on additive and the aerospace industry
See More >
Engineering Exchange

The Engineering Exchange is a global educational networking community for engineers.

Connect, share, and learn today »

Design World
  • Advertising
  • About us
  • Contact
  • Manage your Design World Subscription
  • Subscribe
  • Design World Digital Network
  • Engineering White Papers
  • LEAP AWARDS

Copyright © 2022 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Design World

  • Home
  • Technologies
    • 3D CAD
    • Electronics • electrical
    • Fastening & Joining
    • Factory automation
    • Linear Motion
    • Motion Control
    • Test & Measurement
    • Sensors
    • Fluid power
  • Learn
    • Ebooks / Tech Tips
    • Engineering Week
    • Future of Design Engineering
    • MC² Motion Control Classrooms
    • Podcasts
    • Videos
    • Webinars
  • LEAP AWARDS
  • Leadership
    • 2022 Voting
    • 2021 Winners
  • Design Guide Library
  • Resources
    • 3D Cad Models
      • PARTsolutions
      • TraceParts
    • Digital Issues
      • Design World
      • EE World
    • Women in Engineering
  • Supplier Listings