Earth-boring bit with wear-resistant bearing and seal

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 86 KB
• Volume: 2010
• Category: Article
• ISSN: 1350-4789
• DOI: 10.1016/s1350-4789(10)70094-5

✦ Synopsis

U-ring. The back-up seal may be a metal E-ring with a PTFE coating.