PLX Ceramic Ball Mounted Hollow RetroreflectorsTM (BMRNMs): Designed for applications involving non-magnetic components. They are lighter, smoother, corrosion and electrically resistant, with low thermal conductivity.



  • Longest laser tracking range due to superior optical accuracy.
  • Low thermal conductivity.
  • Lightweight combined with the highest performance.
  • Guaranteed compatibility with laser tracking systems from all major manufacturers.
  • Custom "Knife Edge" design option available upon request, enhances beam quality, eliminates the cause of obscuration.
  • PLX is a registered ISO 9001 company.

Ball Mounted Hollow Retroreflectors™ (BMRs)

Ask a Question

PLX non-magnetic BMRNMs are available in 2 centering accuracies, within .0005” and within .0001”, and are manufactured in 1½”, 7/8" and 1/2"diameters.

PLX BMRs enable the longest tracking range due to their superior optical accuracy. PLX guarantees that our BMRNMs provide superior performance and compatibility with laser tracking systems from all manufacturers. 

Specification Chart
Model Ball Diameter
Retroreflector Clear Aperture
BMRNM-1.5 BMRNM-1.5 1.50 1 within .0001 - .0005 83
BMRNM-0.875 BMRNM-0.875 0.875 0.5 within .0001 - .0005 17.5
BMRNM-0.5 BMRNM-0.5 0.5 0.31 within .0001 - .0005 3.3
Download our product datasheet

Ball Material: Ceramic with sphericity of 0.00005".

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

Retroreflector Mirror Coating: Protected silver.