CMS spindle repair, 4kW, 280/350v, 800/1000Hz, 24000/30000rpm, GR-5431, 00-31947-110, ISO 20

We specialize in the repair of CMS spindle motors, CMS motors, and CMS spindles.  Our repairs will typically cost 1/2, or less than 1/2 the price of a new spindle.  Plus, we upgrade the original non-sealed bearing design, to a sealed / shielded bearing design at all bearing locations.  We keep bearings in stock for these motors to allow us to keep pace with our repair volume.  Lead-time can be as short as 2-3 days.  Contact us for new manual collet and nut spindles or automatic tool change spindles as well.

Four factors are of primary importance when rebuilding a high speed router operating at 10,000 to 30,000 RPM.

  1. The condition of the machine before the rebuild along with accurately diagnosing any and all problems.
  2. Installing proper replacement parts including spindle grade bearings and parts with OEM tolerances that are known only to OEM’s such as Ekstrom-Carlson.  We are not simply a machine shop or an electrical rewind shop.
  3. Precision tolerance machinery and tooling including grinding, plating and balancing equipment.
  4. Experience and quality workmanship of the repair technician.

At Ekstrom-Carlson, a complete factory rebuild includes a thorough inspection and a detailed repair quotation based on the supply of new parts from stock (when available). Comparison of parts to detailed prints, when required, ensures that no corners are cut.  All spindle rotating elements are balanced to ISO G2.5 tolerances or better, the best in the industry.  Re-balancing is critical, even on “simple bearing replacement repairs.”

New parts to original design specifications will be installed by our Service Technicians for complete unit responsibility.

CMS Spindle Repair • Case Studies

Manufacturer: MITUTOYO Part Number: MT/6900-5

MITUTOYO MT/6900-5 Published: 04/02/26 10:12AM At Ekstrom Carlson, we specialize in the repair and servicing of MITUTOYO components, including the MT/6900-5 spindle. With our expertise, we ensure that your high-precision equipment operates at optimal performance levels. The MT/6900-5 is known for its robust design and capability to reach operating speeds of 6000 RPM, making it a critical component in many ... Read More

Manufacturer: Industrial Component Part Number: 60-4230-PR20

Published: 04/01/26 01:00AM Professional Manufacturer Industrial Component 60-4230-PR20 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of Industrial Component’s 60-4230-PR20. This component, often subjected to harsh industrial environments, can exhibit wear and tear, affecting its performance. Our expertise ensures that your equipment is restored to optimal condition, extending its lifespan and functionality. The 60-4230-PR20 is a … Read More

Manufacturer: EPPINGER Part Number: 7 075.259

Published: 03/28/26 01:00AM Professional EPPINGER 7 075.259 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of EPPINGER components, ensuring that each part functions optimally to meet your industrial needs. The EPPINGER 7 075.259 is a critical component known for its precision and reliability. Our expert team is dedicated to restoring this tool to its peak condition, … Read More

Manufacturer: MAZAK Part Number: V-012

Published: 03/27/26 01:00AM [“Professional MAZAK V-012 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of MAZAK components, including the V-012 model. This component is known for its robust performance, operating at a speed of 5000 RPM. Our expertise ensures that your MAZAK V-012 is restored to its optimal condition, addressing any wear and tear that may … Read More

Manufacturer: Industrial Component Part Number: V-012

Published: 03/24/26 12:25PM [“Professional MAZAK V-012 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of MAZAK components, including the V-012 model. Our team is equipped to handle the unique challenges presented by industrial components, ensuring optimal performance and longevity. The V-012, operating at 5000 RPM, requires precise attention to detail, which we provide through our expert … Read More

Manufacturer: MT Part Number: MTA2762-10

Published: 03/20/26 01:00AM Professional MT MTA2762-10 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of MT components, including the MTA2762-10 model. Our expertise ensures that your equipment operates at peak performance, restoring the functionality and reliability you expect from MT products. We understand the importance of precision and quality in industrial applications, and our services are … Read More

Manufacturer: BENZ Part Number: 114DA12700S04-Z

Published: 03/13/26 01:00AM Professional BENZ 114DA12700S04-Z Service Description At Ekstrom Carlson, we specialize in the repair and servicing of BENZ components, including the 114DA12700S04-Z. This component, made in Germany, is designed to deliver high-performance standards with a maximum torque (M1) of 70 Nm and a rotational speed of 6,000 1/min. Our expert team is dedicated to ensuring that your BENZ … Read More

Ekstrom Carlson MRDFD-12 Right Angle Drill Head

Ekstrom Carlson MRDFD-12 Right Angle Drill Head Published: 02/27/26 08:30AM Professional Inspection and Repair for the Ekstrom Carlson MRDFD-12 Right Angle Drill Head If your Ekstrom Carlson MRDFD-12 Right Angle Drill Head is showing signs of wear, noise, or performance issues, professional help is essential. At Ekstrom Carlson, we focus on expert inspection, repair, and rebuilding services for industrial spindle … Read More

Manufacturer: MT Part Number: MAT.MTA2933-1

Published: 03/02/26 03:15PM Professional MT MAT.MTA2933-1 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of MT components, including the MAT.MTA2933-1. This component, identified by its model number MTA2933-1, is integral to mechanical assemblies requiring precise rotational capabilities. With a maximum operating speed of 6000 RPM and a gear ratio of 1:1, it is designed for high-speed … Read More

Manufacturer: BENZ Part Number: 114DA12700S0-Z

Published: 03/02/26 03:13PM Professional BENZ 114DA12700S0-Z Service Description At Ekstrom Carlson, we specialize in the repair and servicing of BENZ components, including the high-performance 114DA12700S0-Z. Known for its precision engineering and reliability, this German-made spindle is designed for high-speed machining applications. With its robust construction and advanced functionality, it plays a crucial role in various industrial settings, from milling to … Read More

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