Tsubaki: The solution for shaft locking devices
Technical Notes INSTALLATION AND REMOVAL
Parts 1: Taper Ring A 2: Taper Ring B 3: Outer Ring 4. Inner Ring 5. Locking Bolts
Parts 1: Inner Ring
AD Series
KE Series
2: Outer Ring 3: Locking Bolts
C. Reusability Assembly and disassembly of the POWER-LOCKs may be repeated a few times. However, if the hub and shaft material yield stresses σ 0.2 cannot tolerate the contact pressure P and P', repeated assembly and disassembly may damage certain parts of the hub-shaft contact surfaces.
Parts 1: Inner Ring
EF Series
2: Outer Ring 3: Locking Bolts
AS-SS, AS-KP, KE-SS, KE-KP, TF-KP, RE-SS, SL Installation and Removal
A. Installation (1) Remove dust and oil from the hub and shaft with a cloth or alcohol. Be sure to completely remove any grease and oil. Otherwise, standard torque may not be achieved. Note: The locking bolts are coated with a special substance so no lubrication is required. (2) Mount the POWER-LOCK onto the hub or shaft. Loosen the bolts or nut if difficult to install. (3) Using a torque wrench, tighten the bolts at quarter of the specified torque M A , starting with one bolt then another diagonally across and repeating for the other bolts. Then, tighten the bolts further to one-half the specified torque M A in the same crisscross sequence. Finally, tighten each bolt to full torque M A in a circular order. Repeat until each bolt is completely tightened. Notes: 1. Do not hit the POWER-LOCK with a hammer. This will severely damage the product and possibly lead to accidents. 2. A torque wrench must be used to tighten the locking bolts. Be sure to follow the
■ Notes on RE Series (1) Installation A: With a Snap Ring ① Use a snap ring to prevent the hub from moving in the direction of the thrust.
(2) Installation B: Without a Snap Ring ① The hub will move in the direction of the thrust while the unit is being installed. See RE Series Movement in the Shaft Direction for amount of hub movement. ② Compared to Installation A, installation without a snap ring can transmit torque up to 1.7 times. Take note of the hub and shaft material strengths for this installation. The contact pressure generated at the hub and shaft from this setup is much larger than that achieved from Installation A. It is very important to check the hub material strength, for if the contact pressure is too high, the hub may displace itself. For required hub diameters, refer to the appropriate Hub Diameters table.
above instructions to tighten the bolts to the specified torque. Hand-tightening or tightening with a wrench other than a torque wrench will result in incomplete installation, and lead to accidents. 3. Exceeding the specified tightening torque M A will damage the bolts. On the other hand, tightening to torque below M A will cause the bolts to loosen during operation. Be sure to use the correct torque to tighten these bolts. 4. Do not use bolts or nuts other than those provided. Otherwise, bolts and nuts may damage and lead to accidents.
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More information at www.ustsubaki.com
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