Truefit Engineering Co. Ltd. Supplies Withdrawal Sleeve with Trapezoidal Threads. Truefit Engineering Co. Ltd. Is an ISO 9001:2000 registered company. Withdrawal Sleeve with Trapezoidal Threads is used primarily to ease dismounting of bearings for shaft diameter up to 170 mm. Withdrawal Sleeve with Trapezoidal Threads, AH Series is provided with metric V threads on outer diameter for unlocking. For shaft diameter bigger than 180 mm, trapezoidal threads are provided with withdrawal sleeve. The nuts required for dismounting are not supplied with the sleeves. These sleeves are made of C20 / C30 carbon steel.
