We offer Mazak live tool repair services for all Mazak 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.
- Disassembled and cleaned.
- Inspected dimensionally and visually.
- Quoted for repair.
- The spindles are assembled with new precision grade sealed / shielded bearings.
- 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.
- As required, the lower, middle and upper bearing housings may be bored, bushed, and reground to proper concentricity and dimensional tolerance.
- The spindles are re-assembled.
- The spindles are installed in the housing.
- 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?
- 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.
- Price: Much lower price than the OEM, or the OEM distributor.
- USA repair: We repair the unit in Rockford, Illinois. It is not shipped overseas, as is often the case for various machines.
- 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.
- Sealed bearings when available and possible conversion to ceramic bearings.
- Free inspections.
- The condition of the machine before the rebuild along with accurately diagnosing any and all problems.
- Installing proper replacement parts including spindle grade bearings and parts with OEM tolerances that are known only to OEM’s such as Ekstrom-Carlson.
- Precision tolerance machinery and tooling including grinding, plating and balancing equipment.
- Experience and quality workmanship of the repair technician.
Live Tool Repair • Case Studies
Chevalier
Pulley spindle, FSG 1224 ADII, FA 934001 DR7000790 Lower & upper bearing DR7000087 Dynamic Balance Rotating Part DR7000041 Spindle Repair Labor And Assy Inspection Results: •The spindle journal diameters show no appreciable wear and are acceptable for proper bearing fits. •The upper bearing housing inner diameter meets design specifications and shows no appreciable wear. No [...]
Evermore
DA230-DF55-25-60, 1429-01 R202118 Angular contact bearing DR7000935 Angular contact bearing DR7001215 Angular contact bearing DR7000070 Deep groove bearing DR7000024 New shaft DR7000039 Bearing Cartridge Repair DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: The tapered spindle has a crack. We recommend making a new shaft. One of the [...]
Evermore
DA40-1809-ER32, 1122 DR7000047 Angular contact bearing DR7000989 Needle roller bearing 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 inner diameter meets design specifications and shows no appreciable wear. No modification is required. [...]
WTO
410120045-60, K08-05152-1.2 DR7001622 Angular contact bearing DR7001343 Angular contact bearing DR7000409 Deep groove bearing DR7001328 Double row bearing DR7000925 Deep groove bearing 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 inner [...]
Eppinger live tool
R78818, 323803-16, 6000rpm DR7001205 Tapered Roller Bearing DR7001206 Tapered Roller Bearing DR7000570 Deep groove bearing DR7001760 Deep groove bearing DR7001722 Eppinger tin ring 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 [...]
Mazak live tool
3089000300, 4500rpm DR7000110 Angular contact bearing DR7000139 Deep groove bearing DR7001471 Deep groove bearing DR7001459 Deep groove bearing DR7000989 Needle roller bearing DR7001854M Plate & Grind Journal - Manual spindle motor or live tool DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: The upper spindle journal diameter is [...]
Alberti angle head
T90-0.5C, 18060028 DR7001399 Angular contact bearing DR7002209 Angular contact bearing DR7002175 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 [...]
Hardinge
QCA000014421AG, 4010/07:01, 8000rpm DR7001622 Angular contact bearing DR7001211 Angular contact bearing DR7002100 Angular contact bearing DR7001223 Needle roller bearing DR7001935 Hardinge spline shaft DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: The spindle is broke and will be replaced. The bearing housing inner diameter meets design specifications and [...]
Heimatec
801025112, 10383/17:01, 8000rpm DR7001332 Angular contact bearing DR7001223 Needle roller bearing DR7000009M Dust Grind Taper - Manual spindle motor or live tool DR7001854M Plate & Grind Journal - Manual spindle motor or live tool DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: The spindle journal has runout issues [...]
Hardinge
QCA000014421A6, 9955/15:04, 6000rpm DR7001399 Angular contact bearing DR7001228 Angular contact bearing DR7001211 Angular contact bearing DR7001223 Needle roller bearing DR7000009M Dust Grind Taper - Manual spindle motor or live tool DR7001935 Hardinge spline shaft DR7000024 Misc. Seals / Grease / etc... DR7000041 Spindle Repair Labor And Assy Inspection Results: The spline shaft is bent. We [...]
