If the precision or fit of the center hole of the motor housing and the shaft assembly does not meet the requirements, it will affect the life of the Motor Gear Case Die Casting Parts. If the concentricity of the housing fails to meet the requirements, the motor will have a noise when working.You are welcomed to come to our factory to buy the latest selling, low price, and high-quality Motor Housing Gear Case Gearbox Die Casting Parts. We look forward to cooperating with you.