Posi-Lock PSL-D-C (Simple Anti-Corrosion Specification)

Specifications

How to choose Friction joint

Points to check when selecting, with the values for this product (Posi-Lock PSL-D-C (Simple Anti-Corrosion Specification)).

1. 1. Match the Shaft Diameter and Boss Bore Diameter

   The applicable shaft diameter d is the outer diameter of the shaft to be installed, and the outer diameter D is the dimension that fits into the boss bore. Friction fastening depends on controlling the fit clearance, so also confirm that the shaft and boss bore can be machined to the manufacturer's specified tolerances and surface roughness.

2. 2. Allow a Margin in Allowable Transmission Torque

   If the allowable transmission torque T is exceeded, the fastening surfaces slip, causing misalignment and wear. Select based not only on the motor's rated torque but also on the peak torque during startup or impact loads multiplied by a service factor.

3. 3. Check Simultaneous Action with Thrust Force

   For applications with axial loads, check the allowable thrust force. When torque and thrust force act simultaneously, they share the friction force, so each allowable value may not be usable independently; confirm the manufacturer's handling of combined loads.

4. 4. Examine Boss Strength from Side Pressure on the Boss

   During fastening, surface pressure acts on the inner surface of the boss, which pushes it outward. Calculate the required boss outer diameter and wall thickness from the boss side pressure and the yield point of the boss material, and for thin-walled bosses or low-strength materials such as aluminum, check for breakage or deformation. Examine the shaft side in the same way using the shaft side pressure.

5. 5. Review the Relationship Between Overall Length and Boss Width

   The overall length L is the axial fastening length. If the boss width is shorter than this, the fastening surface is insufficient and the performance will not be achieved. Together with the installation space, confirm that the boss width satisfies the overall length and that working space for bolt heads and tools is secured.

6. 6. Tighten Evenly to the Specified Tightening Torque

   Because transmission performance depends on the clamping force of the clamping bolts, control the tightening torque (1 to 142 N·m for the listed products) with a torque wrench, and tighten evenly in several passes following a diagonal sequence. Also confirm in advance the required tool size and how to use the removal screw holes.

This guide was written by AI based on the listed products' documents and specification items.

About Friction joint and all products

Description

Simple anti-corrosion specification that shares the same instruction manual as the standard product. The body is electroless nickel plated, and the clamping bolts are treated with Geomet coating. Installation and removal methods are the same as the PSL-D.

FAQ

Q. What surface treatments are applied to the body and clamping bolts of the Posi-Lock PSL-D-C (Simple Anti-Corrosion Specification)?

A. The body is electroless nickel plated, and the clamping bolts are treated with Geomet coating.

Q. From which size is the Posi-Lock PSL-D-C (Simple Anti-Corrosion Specification) available?

A. It is available from size 16 and above.

Q. Can the Posi-Lock PSL-D-C (Simple Anti-Corrosion Specification) be installed and removed using the same method as the standard product?

A. Yes, the installation and removal methods are the same as the PSL-D. It shares the same instruction manual as the standard product.

Written by AI based on the content of the source documents.

Source documents

• Manual ポジロック PSL-D / PSL-D-C 取扱説明書 6 pages Open page 1
  Found on: https://www.mikipulley.co.jp/friction-locking-devices/mechanical/