Seller notes

Kimpex Needle Bearing #09-522 for Yamaha CS340 Ovation 1989-1990 Product Details Rollers are made from bearing steel (JIS SUJ-2/ SAE 52100/ DIN 100 CR6) and have been subjected to heat treatment and precision grinding radius diameter deviation; the hardness is HV700-860 (HRC60-66)All the raw material comes directly from JapanHigh-purity Chromium Molybdenum alloy steel (JIS SCM415) with Carbon Nitriding heat-treatment processThe hardness specification is at HV500~HV600; it always can meet the req...

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