Motor City Spindle Repair

09/04/2026

Your spindle’s operating temperature can tell you more than you may realize.

A sudden increase or a temperature that continues climbing can point to problems with bearing preload, lubrication, cooling, or contamination.

Catching these changes early can help maintenance teams prevent unexpected spindle failure and additional damage.

Our latest blog explains what to monitor, which warning signs should not be ignored, and when it may be time to have your spindle evaluated.

Read it HERE -> https://motorcityrepair.com/cnc-spindle-operating-temperature/

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09/02/2026

IMTS 2026 is almost here!

From September 14–19, the manufacturing industry will come together in Chicago to explore the latest advancements in machining, automation, tooling, software, quality, and more.

Our latest blog covers what manufacturers should expect, how maintenance teams can prepare, and why the conversations you have at the show can be just as valuable as the equipment you see.

The Motor City Spindle Repair team will also be walking the show floor and meeting with customers throughout the week. If you’d like to connect with us in Chicago, send us a message and let’s get a meeting on the schedule!

read more HERE-> https://motorcityrepair.com/imts-2026-manufacturing-show-guide/

09/01/2026

FANUC Robodrill spindle exchanges are in stock and ready to ship!

When spindle downtime hits, waiting weeks for a repair may not be an option. Our exchange program helps get your machine back up and running faster with a reliable spindle ready when you need it.

Need a FANUC Robodrill spindle? Contact us today!

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www.motorcityrepair.com

08/28/2026

Spindle bearings can be damaged before they are ever installed.

Moisture, contamination, vibration, and improper handling can all affect the performance and service life of a precision bearing.

Bearings should remain sealed in their original packaging and be stored in a clean, dry, temperature-controlled environment until they are ready for installation.

Precision starts long before the spindle is rebuilt. Proper storage helps protect your investment and prevent premature bearing failure.

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www.motorcityrepair.com

08/26/2026

Runout matters.

At Motor City Spindle Repair, we use test bars to check runout at 300mm...just under 12 inches. Our guaranteed specification is 10µm at 300mm, which is approximately 0.000394 inches, or four tenths.

Precision isn’t assumed. It’s tested and verified before your spindle leaves our facility.

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www.motorcityrepair.com

08/25/2026

MAG SPINDLES

We can help with those.

Need a FREE QUOTE?
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www.motorcityrepair.com

08/24/2026

Bearing preload plays a major role in spindle performance, accuracy, and bearing life.

Too much preload can create excessive heat, friction, and premature bearing failure. Too little preload can cause vibration, reduced rigidity, and poor machining accuracy.

Choosing a quality bearing from NTN, NSK, SKF, or Barden is important, but the correct configuration and preload matter just as much. Every bearing must be selected based on the spindle’s speed, load, lubrication method, and application requirements.

Need help finding the right spindle bearing? Send us the part number or a photo, and we can help identify the right bearing for your application.

[email protected]
www.motorcityrepair.com

08/21/2026

Replacing the bearings does not automatically mean a spindle is fixed.

Bearing failure is often the result of a larger issue, such as contamination, improper preload, lubrication problems, damaged fits, taper wear, or imbalance.

If the root cause is not identified and corrected, the new bearings may fail again.

In our latest blog, we explain why a complete spindle rebuild requires much more than a bearing replacement.

Read more HERE ->

Replacing damaged bearings does not always fix a CNC spindle. Learn why complete inspection, repair, balancing, run-in and testing are essential.

08/20/2026

What caused this bearing failure? Contamination.

Dirt, debris, and moisture can damage bearing surfaces, increase friction, and lead to premature spindle failure. Identifying the cause of the damage is critical to preventing the same failure from happening again.

Need help identifying a spindle bearing or diagnosing a failure?

[email protected]
www.motorcityrepair.com

08/19/2026

A spindle rebuild can be more than a repair. It may also be an opportunity to improve speed, load capacity, lubrication, contamination protection, and overall reliability.

In our latest blog, we break down some of the most common CNC spindle upgrades maintenance managers should consider, and why every upgrade must be properly evaluated and tested before returning to production.

Read the full blog to learn which upgrades may make sense for your spindle.
https://motorcityrepair.com/common-cnc-spindle-upgrades-2/

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