Vishay Potentiometer Knob, 46 mm Diameter, Silver, Circular, For 6.35 mm Shaft, Vernier Scale, Model 21A11B10

The Vishay Model 21A11B10 potentiometer knob is engineered for applications requiring repeatable, precise multi-turn control. With a 46 mm external diameter, this circular dial is manufactured to accommodate 6.35 mm (1/4 inch) shafts, making it compatible with a wide range of industrial potentiometers and transducer systems commonly found in automation, instrumentation, and laboratory environments.

This knob features a Vernier scale, designed to deliver accurate readings for positions up to 1499 turns. The clear viewing window, with a contrasting black background and white numerals, ensures high legibility even in variable lighting conditions, making it ideal for critical set-point adjustments in process control or measurement systems.

The outer dial is built with high-quality satin chrome, providing both durability and a professional aesthetic. Its robust construction resists wear from repeated handling and supports continued performance in harsh manufacturing settings. For added safety and usability, the knob incorporates a locking brake mechanism that prevents accidental adjustment, giving operators the confidence that their settings will be maintained under vibration or handling.

Installation is simple: the knob mounts directly onto the shaft via a standard circular interface. A locking key is supplied for secure fitment. The black indicator improves precision by allowing users to quickly verify the current position at a glance. The Model 21 dial's multi-turn support enables fine, repeatable adjustments across its wide range, making it a preferred choice for laboratory test benches, calibration stands, and automated control equipment.

The Vishay 21A11B10 potentiometer knob is widely used in electronic calibration equipment, industrial controllers, panel meters, and other instrumentation that demands high-resolution manual setting. Compliance with RoHS standards affirms suitability for regulated environments. The knob’s ergonomic design enhances operator comfort during repeated use.

Explore more potentiometer knobs, precision dials, and industrial positioning solutions in the Potentiometer Knobs section or browse more Vishay components on EnvMart.