Potentiometer Knobs | Control Knobs | RS
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    Potentiometer Knobs

    A potentiometer knob is an accessory that is used as a control knob for a potentiometer. They sit over the top of the potentiometer to enable easy control of electrical devices, such as audio equipment.

    The knobs are available in a range of materials to suit various applications. Potentiometers knobs are commonly manufactured from plastic (often with a brass insert) or aluminium. Some feature soft touch rubber finishes to help with grip. Plastic knobs are generally black but may feature a coloured cap or indicator to help differentiate their use.

    How do potentiometer knobs work?

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

    It is important that you check the shaft of your potentiometer is compatible with the knob. For example, smooth shaft, D-shaped shaft or a knurled shaft can work with different knobs.

    Types of potentiometer knob:

    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 and shape of the potentiometer. Most knobs are cylindrical, but rectangular shaped knobs are available for slider potentiometers. The knob diameter is also important to ensure that it fits your application. Potentiometer knobs are available in a wide range of diameters, for example 30 mm or 40 mm.

    Some potentiometer knobs feature a small skirt at the bottom, which can have numbers around it to indicate number of turns. Others feature a pointer or coloured indicator, which can be helpful for seeing how far a potentiometer has been turned and where it is pointing to.

    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.

    Where are potentiometer knobs used?

    • Audio gear
    • Amplifiers
    • Lighting

    575 Products showing for Potentiometer Knobs

    RS PRO
    6mm
    16.8mm
    Splined
    14.5mm
    Black
    -
    Yellow
    -
    -
    -
    -
    -
    -
    Push-On
    -
    Vishay
    6.35mm
    30.6mm
    Circular
    31.5mm
    Black
    -
    Black
    -
    -
    10
    Model 26
    -
    -
    Dial
    Satin
    RS PRO
    6.35mm
    7.2mm
    Circular
    20.3mm
    Black
    -
    White
    -
    Potentiometer
    10
    -
    -
    -
    Dial
    -
    RS PRO
    6mm
    16.8mm
    Splined
    14.5mm
    Black
    -
    Blue
    -
    -
    -
    -
    -
    -
    Push-On
    -
    OKW
    6mm
    50mm
    Round Shaft
    15.5mm
    Black
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    OKW
    6mm
    16mm
    Round Shaft
    15mm
    Black
    -
    White
    -
    -
    -
    -
    -
    -
    -
    -
    Sifam
    -
    21.5mm
    -
    -
    Various
    -
    -
    -
    Collet/Push-on Knob
    -
    -
    -
    -
    Assorted Caps
    Nylon
    RS PRO
    6mm
    16.8mm
    Splined
    14.5mm
    Black
    -
    Green
    -
    -
    -
    -
    -
    -
    Push-On
    -
    Elma
    6mm
    39mm
    D Shaped, Round Shaft
    13.7mm
    Silver
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    OKW
    -
    -
    Round Shaft
    -
    Black
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Sifam
    4mm
    11.5mm
    D Shaped
    14.4mm
    Black
    -
    White
    10mm
    -
    -
    -
    -
    -
    Soft Touch Push-On
    TPE/PP
    RS PRO
    6mm
    38.6mm
    Circular
    13.5mm
    Black
    -
    Black
    -
    Encoder
    -
    -
    -
    -
    Push-On
    PVC
    Sifam
    6mm
    12.5mm
    D Shaped
    16.5mm
    Black
    -
    Green
    13.4mm
    -
    -
    -
    -
    -
    Soft Touch Encoder
    TPE/PP
    OKW
    6mm
    40mm
    Round Shaft
    16mm
    Grey
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    TE Connectivity
    6.35mm
    19mm
    Circular
    16mm
    Black
    -
    White
    -
    Switch
    -
    -
    -
    -
    Grub Screw
    Aluminium
    Sifam
    6.35mm
    15.5mm
    Circular
    14.3mm
    Black
    -
    White
    7mm
    -
    -
    -
    -
    -
    Collet Knob with Line
    Nylon
    Elma
    6mm
    21mm
    Round Shaft
    18.5mm
    Grey
    -
    Grey
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    6.35mm
    38.6mm
    Screw Fix
    13.5mm
    Grey
    -
    -
    -
    Encoder
    -
    -
    -
    -
    Grub Screw
    PVC
    CONTELEC
    -
    22.2mm
    Screw Fix
    27.3mm
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    4mm
    11mm
    -
    11.2mm
    Black
    -
    White
    11mm
    Potentiometer
    -
    -
    -
    -
    Slide
    Plastic
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