20x13 Plain Metal Shell Control Knob
20x13 Plain Metal Shell Control Knob
| Quantity | Unit Price |
|---|---|
| 1+ | £1.14 |
| 2+ | £1.026 |
| 5+ | £0.969 |
| 10+ | £0.912 |
| 20+ | £0.855 |
| 50+ | £0.798 |
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Fitting
| Knob Type | Rotary |
|---|---|
| Shaft Type | D |
| Shaft Fixing | Push-Fit |
| Hole Size | 6mm |
Appearance
| Identity Colour | Silver |
|---|---|
| Body Colour | Silver |
| Accent Colour | |
| Position Indicator Colour | |
| Position Indicator Shape | Nonce |
Measurements
| Minimum Shaft Depth | 5.5mm |
|---|---|
| Maximum Shaft Depth | 12.6mm |
| Body Diameter | 19.6mm |
| Maximum Diameter | 19.6mm |
| Width | mm |
| Length | mm |
| Height | 13.0mm |
| Additional Measurements | |
| Unit Weight | 3.31g |
Hole Type
D Shaft Hole
A D-shaft knob features a hole with a D-shaped cross-section, having one flat side and the rest round. This configuration ensures that the knob fits snugly onto the shaft, preventing any slippage and provides absolute psoitoning of the position indicator.
The flat side of the hole aligns with the flattened side of the D-shaft, providing precise control and secure attachment. This type of hole is commonly found in knobs used in audio equipment, industrial controls, and automotive applications.
This type of hole dictates the angle of the position indicator, relative to the flat of the D shape. This is measured in degrees of rotation being either 0°, 90°, 180° or 270°.
Measuring Rotary Knobs
Body Diameter
The body diameter is measured at the base of the gripping surface and excludes any non-grippable flange or skirt and also excludes any protruding pinters or tails.
This knob has a body diameter of 19.6mm.
Maximum Diameter
The maximum diameter is measured at the widest part of the knob and excludes any non-grippable flange or skirt and also excludes any protruding pinters or tails. The widest round part of the knob.
This knob has a maximum diameter of 19.6mm.
Minimum Shaft Depth
The minimum shaft depth is the minimum amount that the shaft must be inserted into the body of the knob, in order to make suitable contact with the shaft fixing.
This knob has a minimum shaft depth of 5.5mm.
Maximum Shaft Depth
The maximum shaft depth is the maximum amount that the shaft can be inserted into the body of the knob. This is measured from the lowest part of the base of the knob to the bottom of the hole.
This knob has a minimum shaft depth of 12.6mm.
Height
The height of the knob is measured from the lowest part to the highest including any pointers, inserts, skirts or domed end caps.
This knob has a height of 13.0mm.
Clearance
The clearance is the space between the bottom of the knob and the equipment it is mounted to. While this is not a direct specification of the knob it is important to consider this dimension when selecting a control knob.
An appropiate level of clearence between the base of the knob and the surface of the equipment is nessessary to ensure smooth control and to prevent damage. If your equipment has a recessed area around the control knob shaft you will need to consider this in conjunction with the maximum shaft depth and maximum diameter.