PLX stainless steel Ball Mounted Hollow RetroreflectorsTM (BMRs) improve performance, are the most accurate in the industry and, stainless steel ball material with sphericity better than 0.00005".



  • Superior laser tracking performance.
  • Guaranteed compatibility with laser tracking systems from all manufacturers.
  • If necessary, optical elements replaceable at modest cost.
  • Stainless steel ball material with sphericity better than 0.00005".
  • PLX is a registered ISO 9001 company.

Ball Mounted Hollow Retroreflectors™ (BMRs)

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PLX Ball Mounted Hollow Retroreflectors (BMRs) for laser tracking are the most accurate in the industry.

Now available in 2 centering accuracies: within .0005" and within .0001".

They are manufactured in three different diameters: 1 1/2", 7/8" and 1/2". Should the optical elements of your BMR ever become damaged, PLX can replace them with units of comparable accuracy and alignment to the original at a modest cost. 

Backed by PLX's history of superior quality BMRs.

Ball Material: Stainless Steel with sphericity better than 0.00005".

Retroreflector Apex: positioned within either .0005" or .0001" of the center of the ball as specified.

Retroreflector Mirror Coating: Protected silver.

Cat. No. Ball Diameter (Inch) Retroreflector Clear Aperture (Inch) Centering (Inch) Weight (grams) 3D Models
& Diagrams
BMR - 1.5-1 1.50 1 within .0001 168 Click Here
BMR - 1.5-5 1.50 1 within .0005
BMR - 0.875-1 0.875 0.5 within .0001 32 Click Here
BMR - 0.875-5 0.875 0.5 within .0005
BMR - 0.5-1 0.5 0.29 within .0001 6 Click Here
BMR - 0.5-5 0.5 0.29 within .0005

If you don't see what you need above:
Click here for a Custom Quote, specify what your application is and our engineering staff will get back to you.