car engine bearings1.air bearing ISO9001;QS9000 ;ISO/TS16949 ;2002certificate 2.competive price,excellent quality,quick delive Automatic Car engine tensioner bearing 1. Material: Chrome Steel GCr15 / Gcr15 Simn Stainless Steel AISI152100/AISI1440C.... 2. Features: Able to accommodate misalignment, Relatively high speed.... 3. Applications: European, Japanese, American and Korean automobile, et