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Sakae 22HPM-10 multi-turn potentiometer, 10 kΩ
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Product code: W-POTE-0001
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Sakae 22HPM-10 10 kΩ multi-turn potentiometer — measuring arm sensor for a wheel balancer
A precision 10-turn wire-wound potentiometer from the Japanese company Sakae, used in the measurement systems of wheel balancers — where the machine needs to read the arm’s position and convert it into the rim’s distance and diameter. Ten full turns instead of one provide significantly higher reading resolution, enabling the controller to detect even the slightest movement of the arm. Model 22HPM-10, an original Sakae product, body Ø22 mm.
Technical specifications of the Sakae 22HPM-10 potentiometer
| Model | Sakae 22HPM-10 |
| Type | wire-wound potentiometer, precision, multi-turn |
| Number of turns | 10 full turns — electrical travel 3600° (10 × 360°) |
| Resistance | 10 kΩ |
| Resistance tolerance | ±5% |
| Linearity | ±0.15% — precision class |
| Rated voltage | 120 V |
| Rated power | 2 W |
| Housing diameter | Ø22 mm |
| Installation | threaded sleeve with nuts and lock washer |
| Terminals | 3 solderable blade terminals |
| Torque | max. 10 mNm — smooth operation, does not strain the arm mechanism |
| Weight | approx. 100 g |
Signs of a worn potentiometer in a wheel balancer
The resistive track wears out at the point where the arm operates most frequently — that is, at typical rim diameters. The result is always similar: the machine calculates correctly, but receives incorrect input data. Typical symptoms:
- an incorrect diameter or distance indicated by the wheel balancer after the arm is extended,
- readings fluctuating during slow arm movement — a break in the track,
- weights correctly fitted, yet the wheel remains unbalanced,
- the machine prompts you to repeat the measurement or displays a sensor error,
- the reading is correct only within part of the range, e.g. with large rims.
Why a 10-turn potentiometer rather than a standard one?
A standard single-turn potentiometer spreads the entire resistance range over approx. 300°. The multi-turn version spreads it over 3600° — ten times as long. With the same electronics, the controller therefore receives ten times more accurate information about the position of the arm, and the linearity of ±0.15% ensures that the angle–resistance relationship is uniform over the entire length. A wire element, rather than a carbon one, also offers greater wear resistance and long-term stability of parameters — which is why manufacturers of measuring machines opt for this design.
Not sure if this is the right part? Call us on 534 920 100 or send us an email — please provide the make and model of your balancing machine and the full part number from the old potentiometer, and we’ll check for compatibility. Immediate dispatch.
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Graf-Art Sławomir Kulbida
ul. Bolesława Chrobrego 38/5
59-700 Bolesławiec, Poland
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