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. 893-5383
Mfr. Part No.5940E
BrandOhmite
MYR21.846
Each (In a Pack of 25)
units
6.35mm 34.9mm - 21.4mm Black White - - Grub Screw Plastic
RS Stock No. 893-5222
Mfr. Part No.T505
BrandOhmite
MYR448.516
Each (In a Pack of 5)
units
- - - - Black - - Tap Switch - -
RS Stock No. 893-5055
Mfr. Part No.5109AE
BrandOhmite
MYR126.57
Each
units
6.35mm 41.3mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 893-5226
Mfr. Part No.T507SE
BrandOhmite
MYR385.746
Each (In a Pack of 5)
units
- - - - Black - - Tap Switch - -
RS Stock No. 892-8408
Mfr. Part No.5104E
BrandOhmite
MYR127.31
Each
units
9.5mm 82.6mm - - Black - - 9.5mm Shafts Pointer Knob Aluminium
RS Stock No. 892-8417
Mfr. Part No.5104AE
BrandOhmite
MYR132.23
Each
units
9.5mm 82.6mm - - Black - - 9.5mm Shafts Pointer Knob Aluminium
RS Stock No. 892-5774
Mfr. Part No.5111AE
BrandOhmite
MYR137.54
Each
units
6.35mm 60.3mm - - Black - - G Rheostat and Tab Switch Models, H Rheostat and Tab Switch Models, J Rheostat and Tab Switch Models, K Rheostat and Tab Switch Models, L Rheostat and Tab Switch Models Finger Grip With Pointer -
RS Stock No. 892-6654
Mfr. Part No.5116AE
BrandOhmite
MYR69.13
Each
units
6.35mm 38.1mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 892-8420
Mfr. Part No.5116E
BrandOhmite
MYR49.26
Each
units
6.35mm 38.1mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 892-8401
Mfr. Part No.5001E
BrandOhmite
MYR52.19
Each
units
6.35mm - - - Black - - N Rheostat and Tab Switch Models, P Rheostat and Tab Switch Models, R Rheostat and Tab Switch Models, U Rheostat and Tab Switch Models Dial Aluminium
RS Stock No. 893-5308
Mfr. Part No.5110AE
BrandOhmite
MYR117.418
Each (In a Pack of 10)
units
6.35mm 41.3mm - - Black - - 6.35mm Shafts Pointer Knob -
RS Stock No. 892-8369
Mfr. Part No.5109E
BrandOhmite
MYR126.54
Each
units
6.35mm 41.3mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 893-4585
Mfr. Part No.5910E
BrandOhmite
MYR4.139
Each (In a Pack of 100)
units
- - - - Black - - AZ Series Pointer Knob Thermoplastic Polyester
RS Stock No. 892-6650
Mfr. Part No.5106E
BrandOhmite
MYR140.82
Each
units
6.35mm 82.6mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 892-8397
Mfr. Part No.5007E
BrandOhmite
MYR8.104
Each (In a Pack of 10)
units
- - - - Black - - C Rheostat and Tab Switch Models, E Rheostat and Tab Switch Models Dial Aluminium
RS Stock No. 892-8546
Mfr. Part No.5105E
BrandOhmite
MYR111.94
Each
units
9.5mm 82.6mm - - Black - - 9.5mm Shafts Pointer Knob Aluminium
RS Stock No. 892-8274
Mfr. Part No.5111E
BrandOhmite
MYR137.37
Each
units
6.35mm 60.3mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 892-8404
Mfr. Part No.5103E
BrandOhmite
MYR26.87
Each
units
6.35mm - - - Black White - 6.35mm Shafts Pointer Knob Aluminium