Catalog Searcher
Categories
🌐 English

POSI LOCK PSL-D Standard Type

PSL-D / Miki Pulley (Official website) / Listed on page 18 of the document

A clamping element that secures a shaft and hub by friction force. Tightening the clamping bolts fixes the hub to the shaft, and it can be used without keyways. Allowable torque and thrust force by size are listed for PSL-D-6 through PSL-D-50.

Last verified: (date the content was verified against the source document)

POSI LOCK PSL-D Standard Type on page 18 of Miki Pulley "POSI LOCK PSL-G / PSL-D 設計上の確認事項・製品仕様"
Source: Miki Pulley「POSI LOCK PSL-G / PSL-D 設計上の確認事項・製品仕様」page 18
A reduced image of the relevant page is quoted from the document. Copyright belongs to Miki Pulley.Request removal

Specifications

Allowable torque Mt 6～1760 N・m
Allowable thrust force Pax 2100～70300 N
Clamping bolt tightening torque Ma 1～34 N・m
Operating Temperature Range -40～150 ℃

How to choose Friction fastener

Points to check when selecting, with the values for this product (POSI LOCK PSL-D Standard Type).

  1. 1. Select the Applicable Shaft Diameter

    Friction clamping devices are sized for each shaft diameter, and the listed products cover a range of 19 to 120 mm. Shaft tolerance and surface roughness affect frictional force, so confirm that the shaft meets the tolerance specified by the manufacturer. When using a hollow shaft, check whether it will deform under contact pressure.

  2. 2. Allow Margin in Allowable Torque

    This product: Allowable torque Mt 6～1760 N・m

    The maximum transmittable torque for the listed products is 6 to 1760 N·m. Consider starting shocks and fluctuating loads, and select a size whose allowable torque is at or above the actual torque multiplied by a service factor appropriate to the nature of the load.

  3. 3. Verify Combined Thrust Load

    This product: Allowable thrust force Pax 2100～70300 N

    Axial force is also transmitted by friction, so check the allowable thrust force (listed range 2100 to 70300 N). When torque and thrust act simultaneously, evaluation is generally based on their combined effect, so verify against the manufacturer's calculation formula.

  4. 4. Check Hub Outer Diameter and Strength Against Contact Pressure

    The outer diameter of the clamping device corresponds to the hub bore diameter. Because contact pressure from the outer ring acts on the hub, determine the minimum hub outer diameter from the hub contact pressure and the yield point of the hub material. If a smaller outer diameter is required, refer to the types that include a minimum hub outer diameter selection table.

  5. 5. Confirm Overall Length Relative to Hub Width

    Confirm that the axial overall length of the clamping device fits within the hub width, and that there is sufficient space for bolt heads and tools. If the hub width is insufficient, the contact area is reduced and the specified transmission capacity cannot be achieved.

  6. 6. Tightening Torque Control and Operating Environment

    This product: Clamping bolt tightening torque Ma 1～34 N・m

    The clamping bolts must be tightened evenly to the specified torque (listed range 1 to 34 N·m); insufficient tightening causes slippage. The listed products have an operating temperature range of -40 to 150 °C. In humid environments, select specifications with rust-preventive treatment such as electroless Ni plating.

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

About Friction fastener and all products

Description

The outer ring and inner ring clamp the shaft and hub when the clamping bolts are tightened. It has no centering mechanism, so a separate means must be provided if concentricity is required. Surface roughness and installation tolerances are specified, and it includes tapped holes for removal.

Features

  • Clamping without keyway
  • Sizes 6 to 50 available
  • Equipped with removal tapped holes
  • Ambient operating temperature -40 to 150°C

Applications

  • Clamping of power transmission shafts and hubs
  • Mounting of pulleys, sprockets, and couplings

FAQ

Q. Can the POSI LOCK PSL-D Standard Type be installed on shafts without keyways?
A. Yes, it is a clamping element that can be used without keyways. Tightening the bolts fixes the hub to the shaft.
Q. What are the operating temperature range and allowable torque range of the PSL-D Standard Type?
A. The ambient operating temperature is -40 to 150°C. Allowable torque Mt is 6 to 1760 N·m, and allowable thrust force Pax is 2100 to 70300 N. Values by size are listed in the table from PSL-D-6 to PSL-D-50.
Q. Is any additional measure required to ensure concentricity with the PSL-D Standard Type?
A. It has no centering mechanism, so a separate means must be provided if concentricity is required.
Q. What is the tightening torque of the clamping bolts for the PSL-D Standard Type?
A. The tightening torque Ma of the clamping bolts is 1 to 34 N·m.
Q. Can the PSL-D Standard Type be used to mount pulleys or couplings?
A. It is used for clamping power transmission shafts and hubs, and mounting of pulleys, sprockets, and couplings is listed as an application. It also includes tapped holes for removal.

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

Source documents

Similar products (other manufacturers)

Friction fastener products, ordered by similarity of specifications and applications.

More products from Miki Pulley

See all →