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MPS Micro Precision Systems AG
Switzerland
Bearings & Motion Control: Ball bearings, lead screws, and rail systems
Micro-Manufacturing: High-precision parts for medical and MEMS
Precision Grinding & Honing: Fine abrasive finishing for tight tolerances and surface quality

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MPS Micro Precision Systems AG is a Swiss precision manufacturer established in 1936 under the original name RMB (Roulements Miniatures Bienne SA). Headquartered in Biel/Bienne, MPS specializes in miniature linear bearings, miniature ball screws, precision miniature balls, and micro-electromechanical assemblies.

A subsidiary of the FAULHABER Group, MPS employs over 500 professionals across its production sites. Its flagship facility in Biel features more than 140 turning, milling, grinding, polishing, and eroding machine tools, including high-precision Studer cylindrical grinding equipment to achieve tolerances down to IT02.

Offer

MPS designs and manufactures micro-scale linear motion components and miniature systems:

  • Miniature Ball Screws: Ground stainless steel miniature ball screws offering positioning accuracy under 5 µm, featuring preloaded double-nut configurations to fine-tune axial play, custom thread profiles (including ogival profiles), and specialized lubrication options.
  • Linear Bearings (Microlinea L Series & DBL Series): Miniature linear ball bearings and ball bushings designed for low-friction longitudinal movement in restricted installation envelopes.
  • Miniature Precision Balls: High-sphericity balls manufactured from wire stock via multi-day cold-forming, heat treatment, and lapping processes in stainless steel, ceramics, and specialty alloys.
  • Miniature Linear Actuators: Integrated electro-mechanical linear drive units utilizing miniature ball screws and FAULHABER electric micromotors.
  • Contract Micro-Machining: Swiss-type turning, 5-axis milling, wire/sinker EDM, and precision cylindrical grinding down to sub-micron tolerances.

Tags

linear actuators
linear bearings
cylindrical grinding
miniature ball bearings
miniature ball screws
precision balls
microsystems
Industrial Specializations: Bearings & Motion Control: Ball bearings, lead screws, and rail systems, Micro-Manufacturing: High-precision parts for medical and MEMS, and Precision Grinding & Honing: Fine abrasive finishing for tight tolerances and surface quality
Headquarter/main address: Chemin du Long-Champ 95
Biel/Bienne
Bern 2504
Switzerland
Get Directions
https://www.mpsag.com
Business Type: Manufacturer
Ownership: Subsidiary
Employees: 500 - 999
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