Bridgeport spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Bridgeport spindles and motor spindles — the American manufacturer founded in 1938, whose Series I turret milling machine became a fixture of machine shops worldwide.
Bridgeport, the American turret milling icon since 1938
TLDR: Bridgeport Machine Tool Company (Bridgeport, Connecticut, founded in 1938 by Rudolph F. Bannow and Magnus Wahlstrom) is a renowned American manufacturer whose Series I turret mill became a worldwide milling standard, today complemented by modern CNC machining centres such as the XR1000.
Founded in 1938 in Bridgeport, Connecticut, by Rudolph F. Bannow and Magnus Wahlstrom, initially to produce milling machines for use in their own plant, Bridgeport Machine Tool Company has since designed and built versatile, reliable milling machines. Its most emblematic product, the Series I mill, became a fixture of machine shops and manufacturing facilities in the United States and worldwide, to the point that one can be found in most workshops.
A range of R-8 taper spindles, from manual milling to the CNC machining centre
TLDR: Bridgeport Series I milling machines use an R-8 taper spindle, infinitely variable from 60 to 4,200 rpm, with a 2 hp motor and 125 mm of quill travel, while the manufacturer's modern CNC machining centres use motor spindles suited to precision production.
Bridgeport Series I turret milling machines use an R-8 taper spindle — an interface proprietary to the manufacturer, comparable in shape to a Schaublin-type collet — with a 2 hp motor and infinitely variable speed from 60 to 4,200 rpm, for 125 mm of quill travel. The sensitive spindle, allowing fine manual control of tool feed, is a particularly appreciated feature of these machines, similar to what is found on Deckel mills. On the modern CNC machining centres, motor spindles take over.
Bridgeport spindles covered (non-exhaustive list)
- R-8 taper spindles, Series I turret mills, 60 to 4,200 rpm
- Sensitive spindles with fine manual feed control
- Motor spindles of CNC machining centres, XR1000 range
- Spindles of knee mills, all generations
- Spindles working with R8/MT adapters for Morse taper tooling
Interfaces and specifications
The Bridgeport spindles and motor spindles we repair mainly use an R-8 taper on Series I turret mills, with infinitely variable rotation speeds from 60 to 4,200 rpm, and motor spindle configurations on modern CNC machining centres.
Our expertise on your Bridgeport spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your Bridgeport spindles, with the same rigour as for the other brands in our portfolio.
On-site customer service
- Diagnostics and service directly on your machine, in your production workshop, to limit downtime on your manufacturing line
Full diagnostics
- Inspection of clearances, balancing, bearing condition, sealing and the sensitive spindle, with a detailed technical report
Preventive and corrective maintenance
- Maintenance programme tailored to the production rates of general engineering, together with corrective action in the event of a breakdown
Overhaul and refurbishment
- Grinding, bearing replacement, sealing refurbishment and rotation testing in the workshop, restoring the manufacturer's original tolerances
Why choose Brochexpress for your Bridgeport spindles and motor spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in R-8 taper spindles and the sensitive spindles of Series I mills
- 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 48h
- Workshop repair: around 20 working days depending on parts availability
- 12-month warranty on all our repairs
Frequently asked questions
Do you repair the R-8 taper spindles of Series I milling machines?
Yes, we work on these spindles, whatever the age of the machine.
Do you work on sensitive spindles with fine manual control?
Yes, we diagnose and repair these spindles, a feature much appreciated on Bridgeport mills.
What is the average lead time for a full overhaul?
Allow around 20 working days in the workshop, depending on the condition of the spindle and the availability of parts (bearings, seals, specific components).
Do you work on the motor spindles of modern CNC machining centres in the XR1000 range?
Yes, we diagnose and repair these spindles, whatever the power configured.
Do you offer a preventive maintenance contract for a fleet of Bridgeport machines?
Yes, we draw up preventive maintenance programmes tailored to your production pace.
A reliable partner for your industrial performance
Whether it is an emergency on-site intervention, a full workshop overhaul or a preventive maintenance programme, Brochexpress brings its expertise to your production. As an independent workshop, we work across all Bridgeport spindles and motor spindles — turret milling machines and CNC machining centres — with the responsiveness and rigour demanded by the most exacting industrial environments.
Our teams are at your disposal from our sites in Beaurepaire (France) and Lussery-Villars (Switzerland) for a study of your needs, a diagnosis or a personalised quotation.
Request a quoteRelated services
Bridgeport® is a registered trademark of Bridgeport Machine Tool Company. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of Bridgeport Machine Tool Company. Our business covers independent repair and maintenance of industrial equipment, permitted under the principle of referential trademark use (EU Trademark Directive 2015/2436 / French Intellectual Property Code, art. L.713-6).