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Large High Torque Black Machine / Amplifier Control Knob

Large High Torque Black Machine / Amplifier Control Knob

A large, heavy-duty black control knob with a strong finger grip and a pointed position indicator. This knob is well suited for mechanical loads and has a smooth finish and a strong brass fixing insert.
Quantity Unit Price
1+ £1.01
2+ £0.909
5+ £0.8585
10+ £0.808
20+ £0.7575
50+ £0.707
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Fitting

Knob TypeRotary
Shaft TypeRound
Shaft FixingGrub Screw
Hole Size6.4mm

Appearance

Identity ColourBlack
Body ColourBlack
Accent Colour
Position Indicator ColourWhite
Position Indicator ShapePointer, Line

Measurements

Minimum Shaft Depth8.9mm
Maximum Shaft Depth13.9mm
Body Diameter21.8mm
Maximum Diameter21.8mm
Widthmm
Lengthmm
Height17.1mm
Additional MeasurementsMaximum Length With Pointer: 23.9mm
Unit Weight7.2g
Large High Torque Black Machine / Amplifier Control Knob

Hole Type

Round Hole

A knob designed for a round shaft has a smooth, cylindrical hole that matches the shaft's shape. This type of hole allows the knob to slide easily onto the shaft, relying on a grub screw / set screw or friction to keep it in place. This design is widely used in audio equipment, consumer electronics, and control panels due to its simplicity and versatility

A knob with a round hole can typically also be used on a D type shaft in the 180° position (where the position indicator is opposite to the flat of the D) and can often also be mouned to splined shafts in low torque applications.

A View from the underside of the knob when fitting a round hole knob to a D shaft, showing the grub screw position relative to the position indicator:

Measuring Rotary Knobs

Read more about measuring rotary knobs here.