SEA pulleys are are manufactured under the strict ISO standards and are of equivalent or even exceed OEM's precision tolerance.
SEA bearings are manufactured for high robustness and high temperature resistance with bearing steel equivalent to 100Gr6 (ISO 683-17)/SUJ2 (JIS G4805)/52100 (AISI SAE, ASTM A295/A295m) or GCr15 (GB/T 18254)
SEA bearings are manufactured to be able to perform at high speed while producing low friction, being able to accommodate both axial and radial loads (where applicable)