Instruction Manual - MC

About installation

Follow the instructions and notes below to accurately install Mecha-lock.

Use the torque wrench to tighten screws.

Cleaning Mecha-lock installation surfaces.

Wipe and clean off dust, rust and oil on the shaft surface.

For normal applications.

Oil does not need to be applied to the shaft. Assemble as it is.

Notes for clean conditions applications.

For vacuum state installation.

  1. Dry condition usage.
    Torque capacity in catalog will be the same with/without oil on the shaft.
  2. Applying vacuum grease.
    Vacuum grease formulations often contain fluorine-based extreme pressure additives and these may cause shaft slippage. Excessive tightening can also exceed the shaft/hub's yield point. Evaluation tests are recommended.
Special screws (plating type) is required for vacuum or clean room circumstances. Ask us regarding the application.

Note for the hub installation.

After the installation of Mecha-lock onto shaft, insert to the hub which has been processed to selected dimension. Confirm the hub edge perfectly attached to flange (Fig.1). Confirm the depth with a depth gauge or caliper if it is difficult to judge by sight. Use plastic hammer to hit lightly if installation is hard.

If there is a gap at connection, Mecha-lock flange may come deformed.
Note for the hub installation.

Notes for shaft installation.

The inner ring taper and outer ring taper may become stacked together during transportation. If it become hard to insert the shaft and hub, loosen the locking screws and disassemble the taper part of Mecha-lock by using uninstallation screws.

Tightening the screws after positioning.

Tighten gently in a diagonal direction with a torque wrench (about 1/4 of tightening torque). Next, increase the tightening force (half specified tightening torque), and finally tighten all screws in a circular direction. Confirm that all screws do not rotate after tightening. Also confirm the tightening torque is right for all screws. (table below) (Fig.2)

Tightening the screws after positioning.


Check for safety first before starting an uninstall operation.

Turn off the power and check thrust load or torque are not on Mecha-lock and also check to see nothing can drop.

Loosen the screws in order gently.

Install those loosened screws into the uninstallation holes and tighten them evenly for disassembly. (Fig.3)


Use all uninstallation holes and tighten several times, or the flange can deform and become hard to reuse.