King Machine Tool
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CNC Spindle Rebuild & Repair

Vibration, heat or noise? Catch it before the spindle catches you.

Bearings, drawbar and coolant seals wear before they fail. We assess in-situ, rebuild off-site (or in-situ where practical) with precision bearings, dynamic balancing and a documented run-out check before hand-back.

Request a callback 0330 622 2321
Why customers pick up the phone

The signs a spindle needs attention

If in doubt, ring. A ten-minute call can tell us whether it's a rebuild, a bearing set or something else entirely.

0330 622 2321 Mon-Fri 8am-5pm
  • New noise from the spindle at speed
  • Vibration you can feel through the housing or in the parts
  • Temperature climb under load or at rated RPM
  • Runout at the tool holder outside spec
  • Poor surface finish that survives changing tools and speeds
  • Drawbar not gripping tools cleanly, or releasing sluggishly
What's typically included

The shape of the work.

No two machines or sites are the same. Scope on the day is set by what we find. Use this as a guide, not a checklist.

  • On-site condition assessment before we commit to a rebuild
  • Bearing replacement, drawbar and coolant seal service
  • Dynamic balancing and run-out verification
  • Reinstallation and geometry re-check before hand-back
Why choose KingCNC

What you can rely on.

  • Precision bearings from named manufacturers, not generic replacements
  • Rebuild history documented for your machine file
  • Loan spindle available on some platforms to reduce downtime
Brands & controllers we support
  • APEC
  • Hannsa - YLM Group
  • Baofeng
  • BT30, BT40, BT50, HSK-A, HSK-E tapers
  • Most CNC machining centre and lathe spindles
Common questions

What people ask us about Spindle Rebuilds.

Straight answers. If yours isn't here, ring us and we'll answer it in a minute.

How long does a spindle rebuild take?
On-site assessment is same-day. Off-site rebuild is typically five to ten working days depending on bearings, seals and balancing. We agree the timeline before we pull the spindle so you can plan production.
Do you have a loan spindle available?
On some platforms yes. Ask when you call. Where a loan is available we can keep you cutting through the rebuild.
What bearings do you use?
Precision angular-contact bearings from named manufacturers, matched to the original spec on preload class and P4/P2 grade. No generic replacements on machines that need to hold tolerance.
Do you dynamically balance the spindle?
Yes. Dynamic balancing and run-out verification is part of every rebuild and we hand back a written report with the numbers.
Request a callback

Talk to us about Spindle Rebuilds.

Give us the machine, the taper (BT/HSK/etc.) and what you're hearing or measuring. We'll recommend the right scope.

Optional. Helps us bring the right parts and paperwork.

We'll use these details to get back to you about this enquiry. No marketing.

Need a different service?

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