Our Blog - See Examples of Spindles We've Repaired

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Welcome to our blog. Here, you'll find examples of spindles we've repaired in the past. We explain what was wrong, have images, videos and more. If you're looking for more specific brand information, or can't find a brand click here, or try the "brands" link above.

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  • Kitamura My-Center Spindle Repair

    This Kitamura My-Center Spindle has grease lubrication and is belt driven. This particular spindle runs at 10K rpm and in the photos, Spindle Repair Technician, Andy, is breaking down the spindle and taking incoming measurements, photos, and checking the spindle for damage, runout, etc. At the point I swung by to take some pictures of this spindle repair, Andy had found that the front bearings were worn and had a significant amount of contamination.



    Kitamura Mycenter 2X Spindle Repair

    Kitamura Mycenter 2X Spindle Repair

    Kitamura

    Mycenter 2X

    10,000 rpm

    This customer called and needed a spindle repair done within 5 days. We received the spindle and expedited the breakdown process. The rear roller bearing cage had failed causing the rolling elements to collide causing the spindle seizure. The Belleville washers for the drawbar were damaged and the taper was worn. The spindle repair was evaluated, quoted and approved within 24 hours. The shaft was kiss ground in our grinding department that specializes in spindle repair applications the same day the spindle was approved. Then the spindle went to our assembly area where the technician replaced the bearings and bellevilles. The technician adjusted preload, assembled and ran the spindle. Our quality control department inspected the spindle. The spindle repair was approved by the QC inspection process. The customer was very happy with our quick turn service and how we expedited everything through our facility.



    Kitamura machine tool repair
    Kitamura Transmission Repair

    Kitamura Transmission Repair

    3,000 rpm       

    A Kitamura machine tool dealer we work closely with was called to pull a spindle from their customer’s machine and found that the cause of the problem was the transmission for the spindle. The dealer referred their customer to Northland Tool & Electronics and described the transmission to us. We discussed the problems they were having and determined that we could rebuild it. We received the transmission and found both external pulley shafts OD’s were very worn. This looseness caused damage to the shaft, drive keys and nut from fretting. The pulley shaft was ground; chrome plated and finish ground to spec. The pulleys were welded, machined for sleeve installation and a key way was cut in. The assembly technician replaced all of the bearings; seals, assembled checked for proper gear mess and shifting and test ran. Final quality control ran the transmission at the maximum rpm and it passed all tests. The transmission is back at the customers and the machine tool dealer says the machine is running fine.



    Kitamura Mycenter Spindle
    Kitamura Mycenter Spindle

    Kitamura Mycenter Spindle

    13,000 rpm
    Oil Mist Lubricated
    The front bearings failed in this spindle.  The taper had run out and the pulley needed to be reworked to function properly.


    Kitamura Mycenter 3
    Kitamura Mycenter 3

    Kitamura Mycenter 3

    15,000 rpm
    40 taper
    Front bearings had a catastrophic failure. The drawbar was bent and the taper had run out.
    We kiss ground the taper, replaced the drawbar and rebuilt the spindle.


    Kitamura H-400
    Kitamura H-400

    Kitamura H-400

    10,000 rpm
    This spindle needed a grind plate grind to the taper and the front bearing housing. After completion of the grinding the spindle was assembled, test run and balanced.