Potentiometer switch manufacturer, Omeg 'Make us a component part of your business'


This page provides the basic dimensions, bush and spindle information for the P20 product range of Omeg potentiometers. Go to P20 Potentiometer Data for the electrical and mechanical specifications; and
go to P20 Potentiometer Types to select the unswitched model types available in this range.


In the diagram below the potentiometer terminals are marked A, S and E. P20 basic dimensions


The P20 bushes are available in metal or nylon; with three thread options; and with or without a locating feature:

Do not attempt to prevent any unwanted body rotation by overtightening the retaining nut, since this can cause thread damage, distortion, change of electrical resistance and restrict shaft rotation. BS9130:1972 provides further details on this topic. The recommended torque for tightening the retaining nut is 45cN.m and this can be achieved cost effectively by using a Torque Limiting device as shown on our Accessories page.

P20 bushes


The P20 spindles are plastic and fixed i.e. not removable, unless otherwise stated and they are available in three diameters:

6.0mm Diameter Spindles

Note: *Specials to customer's specification up to 65mm.
REMOVABLE SPINDLES, similar in specification to 'fixed'spindles are supplied seperate from the potentiometer. These can be indefinately taken in and out and their holding strength is >1kg. P20 6mm dia. plastic spindles

4.0mm Diameter Spindles

Note: The orientation of the flat as illustrated is for plastic spindles only.
For metal spindles, unless specified on the order, the orientation may be different on each potentiometer type. P20 4mm dia. plastic spindles

6.35mm Diameter Spindles

Note: *Specials to customer's specification up to 65mm. P20 6.35mm dia. plastic spindles

Splined Spindle - 6.0mm dia. 18 teeth

A splined form is available on the 6.0mm diameter P20 plastic spindle (F5) or alternatively a 6mm 'Splined Adaptor' (8,7mm long) can be fitted on a 4mm dia. Spindle (F5A): P20 splined plastic spindles 6mm Spline Adaptor

Dual Concentric Spindles

P20 dual concentric spindles
This information is supplied in good faith but the customer is politely reminded that it is their responsibility to check the suitability of our products for their particular application, production techniques and processes. Please note that all dimensions are for reference purposes only and, as it is the Company's policy to continuously improve our products, we reserve the right to incorporate changes without notice.