Knob, Round Shaft, 4.5 mm, Thermoplastic Elastomer, Round with Side Indicator Line, 11.43 mm

Description
A compact, precision knob designed for control panels, instrumentation, and electronic devices. This model features a tactile, durable design with a visual reference line to aid in adjustment accuracy.

Key Specifications & Features

• Model / Series: 1237 (Davies Molding)
• Shaft Compatibility: Fits a 4.5 mm (≈ 0.177″) or 6.00 mm (0.236″) shaft depending on variant; many references indicate 6.00 mm shaft.
• Knob Diameter: 11.43 mm (approx. 0.450″)
• Height / Projection: Around 14.73 mm overall height
• Material: Thermoplastic elastomer / plastic with soft-touch overmold for grip and comfort
• Indicator Feature: Side indicator line molded on the knob for showing setting or position
• Finish & Durability: Designed for scratch and wear resistance in control applications
• Mounting Type: Interference fit onto shaft (press-on style)
• Color: Black (common standard)

Benefits & Applications

• Clear Reference & Control: The indicator line provides a visual cue for precise adjustments, useful in instrumentation and front-panel controls.
• Comfort & Grip: The elastomer overmold offers grip and ease of turning even with minimal torque.
• Compact Form Factor: Its small diameter and moderate height make it suitable for tight panel layouts.
• Robust Design for Repeated Use: Built for durability and frequent use in control systems.
• Versatile Use Cases: Suitable for audio gear, test equipment, measurement instruments, switch panels, and other electronics requiring a user-adjustable control interface.

Installation & Best Practices

1. Shaft Matching: Verify the knob’s internal diameter matches your control shaft (e.g., 6.00 mm or 4.5 mm) before installing.
2. Press-Fit Installation: Press the knob straight onto the shaft—avoid excessive twisting or lateral pressure that may damage internal structure.
3. Alignment: Use the indicator line to align with scale markings on the panel for accurate readout.
4. Check for Secure Fit: After installation, verify the knob stays tight during use. If it loosens, consider using a light friction compound.
5. Avoid Harsh Environments: While durable, avoid exposure to solvents or extreme heat that may degrade the plastic or elastomer over time.