Custom Gears & Splines Made to Drawing

Production programme

On our turning and gear-cutting machines we produce:

• CNC-turned parts up to 500 mm turning diameter+

  On the Seiler SLZ 570 with Heidenhain control, workpieces up to 500 kg between centres. Conventionally we turn up to 600 mm diameter and 1800 mm length.
• Gears, straight and helical cut+

  Internal and external, up to 500 mm diameter and module 8. Helical teeth run quieter and carry more load but generate axial forces – which variant fits is settled from the installation and the bearing arrangement.
• Special tooth profiles to drawing or sample+

  Including profiles for which no standard tooling exists – we then have the matching tool made as a special. Your job does not fail at our tool cabinet.
• Sprockets up to 500 mm diameter+

  Including valve-train sprockets for classic engines, where original parts disappeared long ago. Made from a sample, with correct pitch and tooth form so the chain runs cleanly.
• Splined shafts and spline profiles+

  Internal keyways slotted or broached up to 32 mm width and 200 mm length. The operation most workshops have to buy in – here the machine stands in our own shop.
• Gearbox shafts up to 800 mm length+

  Straight or helical cut, machined from a single billet and heat-treated. For racing gearboxes with ground teeth and a measurement report on request.
• Replacement parts for discontinued gearbox components+

  Also from manufacturers other than Porsche. When a gear or shaft has been out of production for decades, the old part is the pattern – measured, drawn, made new.

We keep an extensive stock of standard tooling plus a large number of special tools from the automotive industry. If a profile is missing, we have the matching tool made as a special – your job does not fail at the tool cabinet.

From old part to drawing to new part

The most common case: only the worn or broken original still exists. We measure the sample, determine module, pressure angle and corrections, create the CAD drawing in DWG/DXF format and machine the new part – one point of contact from the first measurement to the ready-to-install component.

Machining to your drawing

Restorers, workshops and machine builders use us as their extended workbench:

• Turning, milling and drilling to drawing+

  When your own capacity is short or the part is too large for your machines. Deadlines are committed, not estimated.
• Keyway slotting and broaching up to 32 mm width+

  Key seats, keyways and internal profiles in hubs, gears, pulleys and flanges. Single pieces too, even though broaching is otherwise a series process.
• TIG welding of steel, stainless steel and aluminium+

  Clean and low-distortion, so the part can still be machined to size afterwards. Typical jobs are cracked brackets and housing sections on classic cars.
• Laser-cut parts and surface finishing+

  water blasting and magnesium pickling in our own workshop; plating, powder coating and painting organised with proven partners – all from one source. On restored cars the faithful original appearance usually matters more than gloss; we match the finish to that.

Quality you can measure

Gear quality is not a promise, it is a measured value. Ground gear teeth are produced with tolerances down to the region of 0.0025 mm – with a measurement report for the part on request.