American Mfg Co bi-metallic high-chrome sleeved liners are becoming the new standard for the industry. Manufactured under API 7-K and ISO 9001 certificates and guaranteed to be 100% identical (with regard to fit, form, and function) with the OEM liner it is designed to replace and AT LEAST equal quality. We subject our AMERICAN liners to over 4 rigorous quality control inspections during the manufacturing process beginning from raw material to finished product checking all aspects of material integrity, chromium % of sleeve, critical machined dimensions and sleeve fit.
Liner 5.1/2″ Supreme 14-P-220
- Premium forged industry standard steel shells
- .2” thick high chrome white iron honed sleeve
- 64-69 RC hardness on chrome sleeve
- HP Stop Collars eliminates risk of sleeve slippage
- Service life of over 800 hours