Klingelnberg spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Klingelnberg spindles and motor spindles — the German benchmark manufacturer in spiral bevel gear cutting and grinding, historically the competing method to Gleason.
Klingelnberg, the German benchmark method for spiral bevel gears
TLDR: Klingelnberg (Germany) is, together with Gleason, one of the two major world manufacturers whose spiral bevel gear cutting methods shape the industry, with conical hobbing machines, grinders (WNC 80) and automatic lapping machines (LKR 400).
Spiral bevel gear cutting is historically tied to two main manufacturers, Gleason and Klingelnberg, whose competing methods directly influence the geometry of the tooth flanks produced. Klingelnberg developed a conical hob cutting process, distinct from the Gleason method, as well as precision grinders for finishing helical bevel gears, such as the WNC 80, a CNC machine fitted with a twin wheel head carrying two grinding wheel spindles for cup wheels. The manufacturer also offers automatic bevel gear lapping machines, such as the LKR 400, together with compact high-precision models such as the G 60, dedicated to small and medium bevel gears and covering both soft cutting and hard finishing.
A range of grinding wheel spindles and workpiece spindles for bevel grinding
TLDR: Klingelnberg grinders use a twin wheel head with two grinding wheel spindles (convex flank and concave flank), with an ISO 40 workpiece spindle taper, wheel speeds reaching 2,700 rpm and an eccentric motion specific to the manufacturer.
On the WNC 80 grinder, the twin wheel head carries two separate grinding wheel spindles, one for grinding the convex flank, the other for the concave flank, with an eccentric motion characteristic of the brand: depending on the number of eccentric revolutions set, the wheel continuously approaches and withdraws from the workpiece, giving the grinding oil time to reach the grinding zones and so minimising the risk of overheating. The workpiece spindle taper is an ISO 40 interface on common configurations, with wheel rotation speeds adjustable up to 2,700 rpm and a grinding spindle axis swivel range of 0° to 15°. An integrated dressing unit allows tool profiling inside the machine itself.
Klingelnberg spindles covered (non-exhaustive list)
- Twin grinding wheel spindles (convex/concave flank), WNC grinders
- Workpiece spindles in ISO 40 interface
- Tool spindles for conical hobbing machines
- Spindles of automatic bevel gear lapping machines, LKR series
- Spindles of compact high-precision grinders, G series
Interfaces and specifications
The Klingelnberg spindles we repair mainly use an ISO 40 workpiece spindle, with twin grinding wheel spindles reaching speeds of up to 2,700 rpm — exact specifications to be confirmed on quotation according to the reference of your machine.
Our expertise on your Klingelnberg spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your Klingelnberg 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 gear cutting and grinding line
Full diagnostics
- Inspection of clearances, balancing, bearing condition, sealing and the eccentric motion system, with a detailed technical report
Preventive and corrective maintenance
- Maintenance programme tailored to the precision requirements of spiral bevel gear grinding, 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 Klingelnberg spindles and motor spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in twin grinding wheel spindles and the eccentric motion specific to Klingelnberg
- 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 twin grinding wheel spindles of WNC grinders (convex/concave flank)?
Yes, we work on both spindles, taking into account the eccentric motion specific to the manufacturer.
Do you work on workpiece spindles in ISO 40 interface?
Yes, we diagnose and repair these spindles, whatever the machine configuration.
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 spindles of automatic lapping machines in the LKR series?
Yes, we diagnose and repair these spindles, whatever the age of the machine.
Do you offer a preventive maintenance contract for a fleet of Klingelnberg 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 Klingelnberg spindles and motor spindles — machines for cutting and grinding spiral bevel gears — 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.
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Klingelnberg® is a registered trademark of the Klingelnberg group. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of the Klingelnberg group. 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).