Repair of spindles and motor spindles fitted with Timken bearings
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnosis of spindles and motor spindles fitted with Timken bearings — an American manufacturer founded in 1898, inventor of the tapered roller bearing, with a super precision range dedicated to machine tools.
Timken, over 125 years of American precision bearing expertise
TLDR: The Timken Company, founded in 1898, filed the first tapered roller bearing patent that same year. Its precision bearing range for machine tools targets high accuracy, stiffness and thermal stability.
Founded in 1898, the year the first tapered roller bearing patent was filed, The Timken Company has become a global player in the design of industrial bearings and motion products, with over 125 years of experience. Its Timken spindle bearings for machine tools target high precision, stiffness and thermal stability, all essential to high-performance spindle applications. Made to tight tolerances, they limit vibration and runout — which shows on the part as better surface finish and repeatability, and on the spindle as extended service life.
The legacy Fafnir brand, now part of the Timken group, remains associated with ball screw support bearings, designed with steeper contact angles for machine tool ball screw drives.
One distinction worth making at diagnosis time: Timken does not manufacture spindles. A spindle fitted with Timken bearings remains a spindle from its own builder. For the role of the component itself, see our page on spindle bearings.
A super precision range, from ABEC 7 to ABEC 9 / ISO P2
TLDR: Timken precision ball bearings come as MM/MMV and MMX for high-speed grinding spindles, and HX for maximum running accuracy. Hybrid versions pair steel rings with ceramic balls to gain speed and dynamic stiffness.
MM/MMV type bearings, built to super precision tolerances, reach ABEC 9 / ISO P2 on the determining characteristics while staying at ABEC 7 / ISO P4 on non-critical ones — a trade-off that improves the performance-to-cost ratio. MMX type bearings, also ABEC 9 / ISO P2 with running tolerances closer to ABEC 7 / ISO P4, suit high-speed grinding spindles that demand strict dimensional tolerances and very fine surface finishes. HX type bearings offer the best running accuracy in the range, made to meet ABEC 9 / ISO P2 runout tolerances precisely.
Hybrid ceramic ball bearings pair steel rings with ceramic rolling elements, a combination that raises the spindle's permissible speed as well as its radial dynamic stiffness. Timken also offers a bearing refurbishment service, including for other brands, which can triple service life at around 60 % less than the cost of new bearings.
Spindles and motor spindles fitted with Timken bearings we cover (non-exhaustive)
- Main spindles fitted with super precision bearings, MM/MMV and MMX classes
- High-speed grinding spindles fitted with bearings meeting ABEC 9 / ISO P2
- HX type precision bearings, the best running accuracy in the range
- Timken motor spindle bearings, hybrid ceramic, for speed and dynamic stiffness
- Ball screw support bearings from the legacy Fafnir brand
Interfaces and specifications
The Timken spindle bearings we use in our repairs cover the MM/MMV, MMX and HX classes, meeting ABEC 7 to ABEC 9 (ISO P4 to P2) — exact references selected according to the original specification of your equipment.
The Timken motor spindle bearings we see most often are the hybrid ceramics, on high-speed grinding applications. A Timken spindle bearing is never picked from a catalogue: the original specification, the service speed and the lubrication method determine the reference.
Our expertise on spindles and motor spindles fitted with Timken bearings
TLDR: Brochexpress works across the whole life cycle of your spindles fitted with Timken bearings, with the same rigour as on every other component in our portfolio.
On-site customer service
- Diagnosis and intervention directly on your machine, in your production workshop, to limit downtime caused by spindle bearing wear.
Full diagnosis
- Checks on clearances, balancing, the condition of the precision bearings and lubrication, with a detailed technical report.
Preventive and corrective maintenance
- A maintenance programme matched to your production rate, with preventive bearing replacement ahead of full failure, plus corrective work when a breakdown occurs.
Overhaul and refurbishment
- Bearings replaced with Timken references equivalent to or above the original, seals renewed and a rotation test in the workshop, restoring the builder's original tolerances.
Why choose Brochexpress for spindles and motor spindles fitted with Timken bearings
- An independent workshop, with no capital ties to the manufacturers, ensuring an objective diagnosis
- Expertise on the MM/MMV, MMX and HX super precision classes and hybrid ceramics
- Two service sites: Beaurepaire (France) and Lussery-Villars (Switzerland)
- Support from the first intervention through to return to production
Turnaround and warranty
- On-site service within 48 hours
- Workshop repair: around 20 working days, subject to parts availability
- 12-month warranty on all our repairs
Frequently asked questions
What is the difference between the MM/MMV, MMX and HX classes of Timken bearings?
They are three levels of running accuracy, all meeting ABEC 9 / ISO P2 on the essential criteria, but with varying tolerance requirements on secondary characteristics. We select the class matched to your application.
Are Fafnir bearings still produced under that name?
Fafnir is now a legacy brand within the Timken group. The ball screw support bearings that carried the name remain available inside the current Timken range.
Do you work on high-speed grinding spindles fitted with Timken MMX bearings?
Yes. We diagnose and repair these spindles, allowing for their strict dimensional tolerance and surface finish requirements.
What is the average lead time for a spindle bearing replacement?
Allow around 20 working days in the workshop, depending on the condition of the spindle and the availability of the references.
Do you offer a preventive maintenance contract covering scheduled bearing replacement?
Yes, we set up preventive maintenance programmes matched to your production rate.
A reliable partner for your industrial performance
Whether it is an emergency callout, a full workshop overhaul or a preventive maintenance programme, Brochexpress puts its expertise at the service of your production. As an independent workshop, we work on spindles and motor spindles fitted with Timken bearings, whatever the machine brand.
Our teams are available from our sites in Beaurepaire (France) and Lussery-Villars (Switzerland) for a needs assessment, a diagnosis or a tailored quotation.
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TIMKEN® and FAFNIR® are registered trademarks of The Timken Company. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor for Timken. Our activity is the independent repair and maintenance of industrial equipment, permitted as referential use of a trademark.