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// Gears & gearboxes

Helical Gears

NDE Clarke Pitchline offers a comprehensive precision cut and ground gear range and can gear hob up to 1200 mm diameter with a maximum face width of 500 mm. We can also gear hob spur gears and both single and double helical gears (also referred to as herringbone gears). Maximum pitch 18 module or 1.411 DP.

We have a comprehensive range of hobs suitable for either DIN or BS standard gears. All our vertical gear hobbing machines have crowning attachments and we have a wide range of cams available.

Helical Gears up to 1000mm dia can be supplied with or without Heat Treatment. Gear grinding is available for an ultra accurate finish for special applications that require excellent vibration, noise and efficiency characteristics.


Internal Gears

NDE Clarke Pitchline offer a comprehensive internal gear range and are able to gear shape internal and external gears and splines up to 1000 mm diameter and up to 200 mm face width and up to 10 mod pitch.

Our machines offer a wide range of different raiser blocks so we can accommodate components with a maximum height of 500 mm. We carry a huge range of shaper cutters in DIN and BS designs.


Spur Gears

We can offer Spur Gears up to 1000mm dia External and 1000mm Internal using Hobbing or Gear Shaping processes. Crowning is also available.

We offer a ‘cut only’ sub-contract service where we cut spur gears using customers free issue material or we can supply complete – from design of the gear, through ISO 9001-2015 assured manufacturing, to delivery.

NDE Clarke Pitchline has a highly flexible gear cutting, hobbing and shaping capacity and can cater for one off specials, infrequent batch quantities right up to full scale production volumes of single or multiple sub-contract machining operations. Allied to a rigorous internal ISO 9001:2008 quality system, this gives our customers maximum capability from one supplier.

NDE Clarke Pitchline has an extensive catalogue of gear shapers and hobs, tooling and fixtures that have been developed over the 45 years of precision gear cutting experience and can work with a wide range of standard alloys such as EN8, EN9, 817M40, EN24T, 080m40, 070m55, 34CrNiMo6 as well as Inconel, phosphur bronze, AISI410, AISI4145, 835M30, EN30B, STST 17-4PH, SS316L, 832M13, EN36C, AISI9310 (AMS6260).


Pinion Gears

High precision gear cut and ground pinion gears are also manufactured at our manufacturing plant in Coventry, UK. Other special detailing such as keyways, drilled and tapped holes and milled features can be incorporated with all operations being machined ‘in-house’.

Specialist Gearboxes

Design, engineering and manufacture of specialist gearboxes such as epicyclic speed increasing gearboxes, high capacity in line helical reduction gearboxes, extruder gearboxes and bespoke small run gearboxes designed to suit numerous applications.

Get in touch to see what we can do for you.