Measurement and navigation equipment

GMN has been involved in the manufacture of special bearings for navigation systems, starting our company’s long tradition in measurement equipment.

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Precision guaranteed

GMN bearings and bearing units for measurement equipment provide the highest precision and stable quality with low installation space and weight. Products include:

  • Rotary encoder
  • Navigation systems (e.g. gyro compass)
  • Probes of coordinate measuring systems

The challenges for measurement technology:

  • System accuracies up to <1 μm
  • Low, non-repeatable beat (NRR)
  • High system rigidity
  • High tuning accuracy
  • Low starting and running friction torque
  • Compact dimensions (thin-section bearing)
  • Low system weight (materials, construction)
  • Absolute cleanliness during assembly

Optimized Engineering

Development and manufacturing products and solutions for measurement equipment places significant requirements on design, manufacturing, measurement systems and component handling. 100% inspection of individual parts and total systems are a significant condition for constant quality and the highest precision.

Significant performance criteria are:

  • Very compact designs using GMN’s manufacturing technologies for thin-walled bearings
  • Innovative, weight-saving compound techniques
  • Assembly in laminar flow hoods

Optimized Engineering

GMN bearings and bearing units for measurement equipment provide the highest precision and stable quality with low installation space and weight. Products include: Navigation systems (such as gyro compasses), rotary pulse generators, probes for coordinate measurement systems.

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Flange bearings for positioning systems

  • Special design (thin-walled, double-row)
  • Special cage (toroid)
  • Very low, specified starting torque
  • Constant, specified friction torque
  • Very high running accuracy
  • Highest tuning accuracy
  •  Material: stainless steel (AISI 440 C)

Bearings for rotary sensors

As a single bearing with a special design (dimensions, cage, sealing) …

  • Thin-ring bearings (compact design space)
  • Very high running accuracy
  • Bearings paired and matched
  • Lifetime lubrication

… fully assembled unit (bushing and bearing)

  • Very high running accuracy
  • Bushing material: Steel
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Bearings for feeler heads in coordinate measurement machines

  • Fully assembled unit (bushing and bearing)
  • Thin-ring bearings (compact design space)
  • Bearings paired and matched
  • Very high running accuracy
  • High stiffness
  • Lifetime lubrication
  • Bushing material: Aluminum