We offer Romai live tool repair services for all Romai precision tools.  Our repairs will typically cost 1/2, or less than 1/2 the price of a new live tool.  Plus, we can upgrade the original non-sealed bearing design, to a sealed / shielded bearing design at all bearing locations.  We keep bearings in stock for these live tools to allow us to keep pace with our repair volume.  Lead-time can be as short as 2-3 days.

  • Most live tools exceeding 0.001″ runout are due, or almost due, for a repair.  0.0008″ or less is the target runout for a live tool.
  • Live tools like to rest as long as they cycle at full speed or maximum load.  5 minutes is a typical maximum run time followed by a 5 minute rest.
  • 150 to 160F temperatures are common when running at full load.
  1. Disassembled and cleaned.
  2. Inspected dimensionally and visually.
  3. Quoted for repair.
  4. The spindles are assembled with new precision grade sealed / shielded bearings.
  5. If necessary, the spindle is ground to true the taper, and / or the bearing journals are plated and re-ground to proper bearing tolerance and total indicated runout.
  6. As required, the lower, middle and upper bearing housings may be bored, bushed, and reground to proper concentricity and dimensional tolerance.
  7. The spindles are re-assembled.
  8. The spindles are installed in the housing.
  9. The unit is run tested for 5-10 hours with testing of vibration, temperature, and noise levels

Why should you have your multi-spindle boring head, high speed right angle head, or other aggregate head, repaired by Ekstrom-Carlson?

  1. Lead-time: 1-2 Week average for multi-spindle heads, including tear down, inspection, quotation, and repair.  3-5 days for right angle heads and live tooling repairs.
  2. Price: Much lower price than the OEM, or the OEM distributor.
  3. USA repair: We repair the unit in Rockford, Illinois.  It is not shipped overseas, as is often the case for various machines.
  4. Parts repair: Where possible, we will save money by repairing motor spindles and gear spindle shafts.  Some manufacturer’s representatives will always quote a brand new unit if the unit drive shaft is damaged, or if the bearings require replacement.  75% of the time, we can save the original unit at less than 50% the cost of new.
  5. Sealed bearings when available and possible conversion to ceramic bearings.
  6. Free inspections.
  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.
  3. Precision tolerance machinery and tooling including grinding, plating and balancing equipment.
  4. Experience and quality workmanship of the repair technician.

Live Tool Repair • Case Studies

Romai

RW25 CAT40/ER32, 00314-1.1, 4000rpm DR7000892 Angular contact bearing DR7001048 Angular contact bearing DR7001011 Angular contact bearing DR7000009M Dust Grind Taper - Manual spindle motor or live tool DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: •The spindle journal diameters show no appreciable wear and are acceptable for proper bearing fits. •The bearing housing ... Read More

Romai

RWS15 BT50/ER40, 07-28281, 4000rpm DR7001504 Angular contact bearing DR7000267 Angular contact bearing DR7000605 Deep groove bearing DR7002435 Bearing, combination DR7002436 Bearing, combination DR7002438 NEEDLE/THRUST BEARING DR7002437 Romai drive shaft DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: •The spindle journal diameters show no appreciable wear and are acceptable for proper bearing fits. The ... Read More

Romai

S7-VD150-NBC25-32-A7D, 60 600 4207, 18.1816-3.1 36/2018, 4000rpm DR7001270 Tapered roller bearing DR7001206 Tapered Roller Bearing DR7000331 Angular contact bearing DR7002353 Needle roller bearing DR7001854M Plate & Grind Journal - Manual spindle motor or live tool DR7000039 Bearing Cartridge Repair DR7000041 Spindle Repair Labor And Assy Inspection Results: One of the spindle journal diameters is worn and rough. The ceramic area ... Read More

Romai

S7-VD150-NBC25-32-A7D, 60 600 4207, 18.1816-3.2 36/2018, 4000rpm DR7001270 Tapered roller bearing DR7001206 Tapered Roller Bearing DR7000331 Angular contact bearing DR7002353 Needle roller bearing DR7001854M Plate & Grind Journal - Manual spindle motor or live tool DR7000041 Spindle Repair Labor And Assy Inspection Results: One of the spindle journal diameters is worn and rough. We recommend plating and grinding this area. The ... Read More

Romai Aggregate Angle Milling Head

01.3739-1.2 02/2009, 03.801369, WFK HSK63/ER32, 6000rpm DR7001048 Angular contact bearing DR7001239 Angular contact bearing DR7000892 Angular contact bearing DR7000039 Bearing Cartridge Repair DR7001410 Romai seal DR7001411 Romai seal DR7000041 Spindle Repair Labor And Assy Inspection Results: •The spindle journal diameters show no appreciable wear and are acceptable for proper bearing fits. •The top bearing housing is scored and rough. We ... Read More

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