Rings / Spiral Retaining Rings / MCR


Product Image


Part Data

  • Housing or Shaft Shaft
  • Axial or Radial Axial
  • Shaft Diameter Ds 54 mm
  • Groove Diameter Dg 51.350 - 51.650 mm
  • Groove Width W 2.18 - 2.31 mm
  • Free Diameter Df 50.480 - 51.110 mm
  • Section S 3.45 - 3.66 mm
  • Thickness T 1.90 - 2.06 mm
  • Interchange Mil Or Aero

Performance Data

  • Thrust Load Ring Safety Factor Of 3 Pr 97270.00 N
  • Thrust Load Groove Safety Factor Of 2 Pg 46607.00 N


  • Carbon Steel (SAE 1060-1090)
  • Beryllium Copper
  • Special Material Grades
  • Stainless Steel AISI 302
  • Stainless Steel AISI 316


For plated rings, add .002" (.05 mm) to the listed maximum thickness.

  • OIL - Oil over Steel, Carbon Steel



External, Medium-Heavy Duty, Metric. These 2-turn and multi-turn rings provide 360 groove contact and are designed for applications with medium-high thrust loads.

Custom solutions

Can’t find what you’re looking for in an existing product, need a modified version of one of our standard parts, or simply aren’t sure what part you need?

Submit your custom specifications

Need help? Contact our Engineering team


CAD Models are provided for informational purposes only and may not represent the final part you receive.  Manufacturer assumes no responsibility for any such inconsistencies , and disclaims any liability to any party for any loss, damage, or disruption which may arise therefrom. Always contact Manufacturer for final measurements when specified in your design.


More than Parts. A True Partnership.

Our passion is creating the best rings, springs, and clamps. Our mission is to make your work a success. We are here for you.