New from Ruland: thin line shaft collars

Ruland Manufacturing Co Incvisit website


Ruland has developed thin line shaft collars for use in applications with outer diameter, width or weight limitations. Thin line shaft collars function as clamps, positioners, guides, spacers, and stops in a smaller profile than traditional collars. Designed for applications with space and weight restrictions in industries such as packaging, printing, medical and food, they are particularly suitable for split hub componentry such as encoders. Two-piece styles have a balanced design for higher RPM applications.

Thin line shaft collars from Ruland deliver high holding power in a compact design suitable for a variety of light and medium-duty applications. Most bore sizes are available with different outer diameter and width dimensions and screw sizes allowing the user to match space restrictions and holding power with their application requirements. Thin line shaft collars have tightly controlled face-to-bore perpendicularity, TIR of <.002” (.05mm), for proper alignment of mating components.

Ruland offers thin line shaft collars in one- and two-piece clamp styles. Clamp style shaft collars have high holding power, allow for simple positioning adjustments and do not mar the shaft. Two-piece styles are balanced for better performance in high-RPM applications. Halves are mated together throughout the manufacturing process for proper fit and alignment.

Thin line shaft collars are available in high strength type 2024 aluminium and 303 stainless steel for added corrosion resistance. Materials are sourced from select North American mills to ensure product consistency. Clamping hardware tests to or beyond DIN 12.9 standards for maximum torque capabilities. Thin line shaft collars are offered with bore sizes ranging from 3/16” to 1-1/2” and 5mm to 40mm. Custom bore sizes and geometry, mounting holes, and inch hardware are available as special designs.

The complete range of Ruland shaft collars includes one- and two- piece clamp styles with smooth or threaded bores in a variety of materials including 1215 lead-free steel, 303 and 316 stainless steel, 2024 aluminium, zinc plated steel and engineered plastic. All Ruland products are RoHS2 and REACH compliant.


  • Useful for applications with outer diameter, width or weight restrictions
  • Tightly controlled face-to-bore perpendicularity ensures proper alignment of mating components
  • Two-piece styles are balanced for better performance in high-RPM applications
  • Materials are sourced from North American mills
  • RoHS2 and REACH compliant
  • Made in Ruland’s Marlborough, Massachusetts factory and available for immediate delivery

3-D CAD files, full product specifications, and additional technical information about the thin line shaft collars are available at

27 June 2014

Ruland Manufacturing Co Incvisit website
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