RMAlBx-25x15.5 Black Ribbed Aluminum Knob Ø25×15.5 mm (Side Set Screw, Colored Rubber Rings)

RMAlBx-25x15.5 is a high-quality ribbed aluminum control knob with a black anodized body, designed for premium electronic equipment. Made from a solid aluminum alloy, the knob features a diameter of 25 mm, a height of 15.5 mm, a 6 mm shaft hole, and a side set screw for secure mounting on potentiometers or rotary encoders. It includes interchangeable colored rubber rings available in six options — Red, White, Black, Blue, Burgundy, and Gray — providing improved grip, aesthetic customization, and functional identification.

Key Features

• Solid aluminum alloy construction
• Ribbed surface for enhanced grip and precise control
• Black anodized body
• Dimensions: Ø25 mm × 15.5 mm height
• 6 mm shaft hole for wide compatibility
• Side set screw for secure fastening
• Colored rubber ring options: Red, White, Black, Blue, Burgundy, Gray
• Durable and corrosion-resistant finish
• Compatible with potentiometers and rotary encoders

Applications

• Power amplifiers
• Multimedia systems
• Hi-Fi audio equipment
• DIY tube amplifiers
• Electronic instruments and lab equipment
• Medical devices
• Industrial and measurement equipment
• High-end electronic appliances

If you need OEM customization, special ring colors, logo engraving, or bulk quantities, please contact us at: sales@romaks.ltd.