Bearing rebuilds
Noise, heat, vibration and runout. Matched duplex angular-contact bearings, ABEC 7 to ABEC 9, on every rebuild.
Spindle specialists since 1999
CNC spindle repair in 3 to 5 working days
Perske, Colombo, HSD, Elte and Komo router spindles rebuilt with ABEC 7–9 bearings and a six-month warranty. Or buy new, from stock.
- Written quote before any work
- ABEC 7–9 bearings
- Six-month warranty
- Spindle specialists
- Since 1999
- Standard turnaround
- 3–5 days
- Service available
- Emergency
- Warranty on every repair
- 6 months
What we do
What we repair
High-frequency spindle motors from CNC routers and machining centres, whether the problem is the motor or the bearings. We isolate the fault first.
Motor and winding faults
Loss of power, tripping drives and winding faults, isolated from the bearings before we quote.
Drawbars and tool change
Weak drawbars, worn gripper fingers and scored tapers on automatic tool-change spindles.
Crash damage
Bent shafts, cracked housings and damaged tapers, assessed at inspection before you commit to anything.
Dynamic balancing
Every rebuilt rotor is balanced after the bearings are fitted, then run in and tested at speed.
New spindle motors
Perske and Giordano Colombo router spindles, manual and automatic tool change, several on the shelf.
How we can help
Repair it, or replace it
Send it in for repair
Bearings, balancing, drawbars, motor faults: rebuilt to print with ABEC 7–9 bearings, and a written quote before any work starts.
Request a repair quoteBuy a new spindle motor
Perske and Giordano Colombo router spindles, manual and automatic tool change, several on the shelf and ready to ship.
Browse spindle motorsNot sure which?
Describe the machine and what it is doing. We will tell you whether it is a rebuild, a replacement, or something else entirely.
Call 704-SPINDLEFrom the catalogue
Featured products
In stock
In stock
Browse the range
Browse by category
Perske
German high-frequency spindle motors for routing, shaping and finishing wood, plastics, composites and light metals. Stiff shafts, precision bearings and run-out under 8 microns.
Giordano Colombo
Italian electrospindles for wood, plastic, aluminium, glass and stone: manual (MTC) and automatic (ATC) tool change, fan, air or liquid cooled.
Advice and answers
From the blog
Reading time: 2 min read
Warm-up cycles: the few minutes that double bearing life
A cold spindle taken straight to 24,000 rpm is the most common self-inflicted wound we see. What a warm-up does, and a routine that costs almost nothing.
Reading time: 2 min read
How to pack and ship a spindle for repair without damaging it
A spindle that arrives with a bent shaft it did not have when it left is a bigger job than the one you sent. Ten minutes of packing avoids it.
Reading time: 2 min read
RA, RC, RS, RV: how Colombo cools its spindles and why it matters
Four Colombo series, four ways of taking the heat out. The cooling method decides what the installation needs and what fails first when it is neglected.
Questions and answers
Questions we get every week
How long does a repair take?
Standard turnaround is generally 3 to 5 working days from receipt, once you have approved the quote. An emergency service is available for an additional $750.
What does it cost?
It depends on what the inspection finds, which is why every job starts with a written quote. As a rule a rebuild is a fraction of a new spindle, and you keep the spindle that already fits your machine.
Repair or replace?
If the housing and shaft are sound, repair. If the spindle has crashed hard or the motor is beyond rewinding, we tell you so in the quote, and we stock new Perske and Giordano Colombo units if replacement makes more sense.
My spindle crashed. Is it worth sending?
Usually yes. Crash damage is assessed at inspection like everything else, and you only pay for the inspection outcome you approve. Photos of the damage with your quote request help us give you an early read.
Do you come to us?
Spindle repair is bench work: the spindle comes to us. If you need help diagnosing the machine before you pull the spindle, call and we will talk it through.
Spindle down? Get it back in 3 to 5 working days.
Send the details and a few photos for a written quote, or call and talk it through.
Northsi
- Hours
- Mon–Sat 9 am – 6 pm Eastern
- info@northsi.com