Potentiometer Knobs

A potentiometer knob is an accessory that is used as a control knob for a potentiometer.

How do they work?
Many potentiometers knobs are simply push on and can easily be fitted to the potentiometer shaft. Others use a fixing such as a nut, grub screw or blind set screw to fix them in place. The knob can be used to turn the potentiometer, like a volume control knob on a stereo.

What different types are there?
A huge variety of potentiometer knobs are available to suit virtually any application. When choosing the right knob for your potentiometer, you must always check the shaft diameter of the potentiometer. This helps to narrow your options down. Most knobs are cylindrical, but rectangular shaped knobs are available for slider potentiometers. Potentiometer knobs are available in different colours.
Some potentiometer knobs feature a small skirt at the bottom, which can have numbers around it. Others feature a pointer or coloured indicator, which can be helpful for seeing how far a potentiometer has been turned.
Some potentiometer knobs are also multi-turn. They may feature a locking mechanism and a turn counter which shows the number of rotations of the potentiometer knob.
Material
The material that the knob is manufactured from can help you to determine whether it is suitable for your application. Potentiometers knobs are commonly manufactured from plastic (often with a brass insert) or aluminium, and some have soft touch rubber finishes.
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Description Price Shaft Size Knob Diameter Shaft Type Knob Height Body Colour Indicator Colour Depth For Use With Knob Type Material
RS Stock No. 743-5661
Mfr. Part No.H-516-6A
BrandBourns
TWD418
Each
6.35mm 22.8mm - 24.8mm Black, Chrome Black - Precision Potentiometer Turns Counting Dial -
RS Stock No. 498-895
BrandRS Pro
TWD129
Each
6.35mm 28mm - 14mm Silver Black - 6.35mm Shafts Control Knob Aluminium
RS Stock No. 737-7701
Mfr. Part No.H-22-6A
BrandBourns
TWD389
Each
6.35mm 22.2mm - 21.3mm Chrome - - Precision Potentiometer Turns Counting Dial -
RS Stock No. 797-2924
Mfr. Part No.18A11B10
BrandVishay
TWD513
Each
6.35mm 22.2mm - 22.2mm Chrome Black - - Turns Counting Dial -
RS Stock No. 225-726
Mfr. Part No.S210250-BLK
BrandSifam
TWD68
Each (In a Pack of 10)
6.35mm 21.5mm - 17.7mm Black - - Potentiometer Collet Knob Plastic
RS Stock No. 374-3211
Mfr. Part No.ACCTRHJ1021
BrandVishay
TWD46
Each (In a Pack of 5)
6mm 22.2mm - 12 mm, 14 mm Black - - 357 Series Cap -
RS Stock No. 498-839
BrandRS Pro
TWD85
Each
6.35mm 22mm - 14mm Black Black - 6.35mm Shafts Control Knob Aluminium
RS Stock No. 259-6935
BrandRS Pro
TWD20
Each (In a Pack of 5)
6.35mm 16.2mm - 15mm Black, Red White - 6.35mm Shafts Grub Screw Knob Plastic
RS Stock No. 508-885
Mfr. Part No.11A41B10
BrandVishay
TWD980
Each
6.35mm 25.4mm - 22.2mm Chrome Black - - Dial -
RS Stock No. 467-2429
BrandRS Pro
TWD91
Each
6mm 12.7mm - 25.4mm Black White - Potentiometers, Rotary Switch Pointer Knob Aluminium
RS Stock No. 504-2784
Mfr. Part No.25A11B10
BrandVishay
TWD1,131
Each
6.35mm 46mm - - Chrome Black - - Dial -
RS Stock No. 107-7253
Mfr. Part No.BT 81 6M
BrandAtoms
TWD289
Each
6mm 24mm - 23mm Chrome Black - Potentiometer Turns Counting Dial -
RS Stock No. 498-918
BrandRS Pro
TWD102
Each
6.35mm 16mm - 14mm Natural Black - Potentiometer Control Knob Aluminium
RS Stock No. 498-851
BrandRS Pro
TWD74
Each
6.4mm 30mm - 15mm Silver - - Potentiometer Control Knob Aluminium
RS Stock No. 729-6220
BrandRS Pro
TWD12
Each (In a Pack of 5)
- 6mm - - Translucent - - Illuminated Encoder Cap -
RS Stock No. 259-6828
BrandRS Pro
TWD17
Each (In a Pack of 5)
3.175mm 11.6mm - 10mm Black, Grey White - Potentiometer Grub Screw Knob Plastic
RS Stock No. 226-000
Mfr. Part No.C290-BLK
BrandSifam
TWD10
Each (In a Pack of 10)
- 29mm - - Black - - Collet Knob Cap -
RS Stock No. 499-977
BrandRS Pro
TWD23
Each
6.4mm 14mm - 16mm Silver - - Potentiometer Control Knob Aluminium
RS Stock No. 466-4989
BrandRS Pro
TWD21
Each (In a Pack of 5)
6.4mm 14mm - 17mm Black White - Potentiometer Grub Screw Knob Plastic
RS Stock No. 222-014
BrandRS Pro
TWD77
Each (In a Pack of 5)
6.35mm 41.9mm - 20.3mm Black White - 6.35mm Shafts Skirted, Winged -