India classifieds, free classified postings, business directory, yellow pages
india news, india tour
indian matrimonial listings
Free Classifieds
  Home   All Classifieds    Visit Forums    US Classifieds    Indian Classifieds    Articles    Feedback 
Jokes | Discuss Movies | Latest Classifieds | Resources | Health Articles | USMLE Forum

  to fill out a simple form to connect to Classified Postings in your area.

If you have a flair for writing, you may also post an article by clicking on Post Article. We will review your article and publish it if we find the contents relevant to this website. The article should be penned by you. It should not have been copied from any other site.

Sintered Bushes are Self-Lubricating bearing

Posted on:1/2/2006
Written By: Manish Dadhania
Website: www.precisionsintered.com
The properties of self-lubricating bearings are determined by the defined density of the bearing material. After forming, sintering and sizing, the bearings are vacuum impregnated with SAE 40 oil that provides lubricant which is metered from the bearing to the shaft during rotation. The resulting number of pores acts as a reservoir for the lubricant.


PSP offers sintered bronze oil impregnated bearings, Plain, flanged bearings, thrust bearings. Our sintered bronze products conform to ASTM / MPIF/IS/DIN Standards recommended Materials, dimensions and tolerances. After forming, sintering and sizing, the bearings are vacuum impregnated with SAE 40 oil that provides lubricant which is metered from the bearing to the shaft during rotation. Standard sintered bronze bearings and wear plates will function satisfactorily in temperatures ranging from -60ºc to 200ºc. Consult us if your application is subject to higher temperatures or other specific operating conditions.

The properties of self-lubricating bearings are determined by the defined density of the bearing material. The resulting number of pores acts as a reservoir for the lubricant. Through linking of the pores, a canal system is produced which forms a lubricating film on the contact surface and helps to circulate the lubricant. In running condition, within a short time equilibrium is established in the circulation of the lubricant.

Powder metallurgy is the process where by metal parts in large quantities can be made by compressing and sintering various powdered metals such as brass, bronze, stainless steel, and iron. Self-lubricating sintered metal bearings are produced by powder metallurgical methods. Powder metals are fed into a die and axially compacted. The resulting "green parts" are sintered in a protective gas atmosphere at temperatures below the melting point. Through diffusion, a bonding results at the points of contact of the powder particles. This bonding defines the strength of components. Through subsequent calibration, the specified tolerances -- primarily in the bore -- are met without blocking up the pores. Vacuum impregnation with a suitable lubricant is the final stage of the process. To improve the feed in automatic bowl feed systems, there is normally an additional operation to produce a dry-to-the-touch bearing and supplementary heat treatments may be employed.

The physical properties of the final product are comparable to those of cast or wrought products of the same composition, if the parts are processed to provide high density. A lower density will result in lower physical properties.

1) Design
PSP designs all tooling required to produce a part to customer specifications.

2) Blending 
Metal powders are first mixed with lubricants and/or other alloys to produce a homogeneous blend of ingredients. Often the blending is done by the metal powder producer.

3) Compaction
The powder is gravity-fed into the die and is usually compacted at room temperature. The most common compacting pressures are in the 30 - 50 tons per square inch range. PSP has automated pressing equipment ranging from 4 - 250 tons.

4) Sintering
During sintering the pressed parts move through a controlled-atmosphere furnace. The pressed powder particles fuse together, forming metallurgical bonds. PSP has high temperature sintering capabilities up to 3000 degrees F.

5) Secondary operations
PSP can provide the part with a variety of secondary operations including grinding, impregnating, drilling, tapping, repressing and reaming.

 


  
Classified Postings   Show All articles

  to fill out a simple form to connect to Classified Postings in your area.

 
Channel for Jobs, resumes
Ace Any Job Interview Work-At-Home Jobs Resume Writing Help
 
Technical Reviews
Camcorder Reviews Cell Phone Reviews Notebook Reviews
Camera Reviews Peripherals Reviews Computer Systems Reviews
 
Articles on programming, developer tools etc.
.Net Programming Articles Webmaster Resources Download Developer Tools
Viruses News Market your website Graphics, Design and Publishing SW
 
Video News
Video News Home and Living Videos Most Watched Movies
Most watched Autos videos Future Vehicles Automotive News
 
Health Channel
Women's Natural Health News Men's Health Herbal Health
Latest Health News Medical Tourism Health Insurance News
Beauty Health Tips
 
Channel for real estate, personal finance, business etc.
Personal Finance Real Estate Articles US Economy
Stock Markets Starting a New Business Business Research/Advice
 
Immigration Channel
H-1B Visas News UK Immigration News
 
Other Channels
Travel Forum/Guide India Cricket News Oddly Enough
Latest Classifieds Most Emailed News India Entertainment
Indian Movie Reviews Relationships Indian Astrology
 
Blogs
Astounding Viewpoint Technology & Gadgets Family Delights
Glimpse of China
 RSS Feeds  |  Articles  |  Jobs  |  Leads
SiteMap  | Trading Partners | Post Classifieds  | FAQ || View All Classifieds  | Success Stories  | Press Releases
 | Resources | Kids
Copyright © 2005. “SuperIndian.com ”. All rights reserved.

...