Liebherr Gear tools

Leibherr Gear tools  Gear tool product range
Liebherr offers a comprehensive range of gear tools, many years of experience in gear manufacturing and maximum product quality. We are a reliable partner offering innovative development and best tool performance. Our product range is in demand by customers all over the world. Liebherr offers not only tool calculations, design and manufacture for all customers but also outstanding after-sales services, including sharpening and coating of gear tools and also
reconditioning of CBN grinding tools in our in-house electroplating shop.Tools Servíces
Shaping cutters Sharpening and coating
Wafer cutters Reconditioning of CBN grinding tools
Solid wafer cutters Software
Rolling dies Component and contract manufacture
Rolling racks
Shaving cutters
Rack type cutters
Rolling deburring discs
Rolling chamfering discs
Calibration tools
Gauges
CBN grinding tools
Customized grinding tools
shaping cuters We can look back on 50 years of experience in the design, Shape, designs and coatings are adapted and customised
development and manufacturing of gear tools at our plants in accordance with the gearing requirements. in Ettlingen and Turin. Through this continuity and ongoing development, our customers have access to the extensive Various hub, disc and shank type cutters are available technical knowledge of our specialists. in particular, this from our stock for different modules and pressure angles. also includes developing solutions and special designs for They can be delivered at short notice for standardised all types of gears that can be manufactured by shaping reference profiles such as DIN 3972, DIN 5480, DIN 5482
processes in involute or non-involute profiles. and DIN 8197.
Shaping cutters are available as disc, hub, shank and If required, semi-finished disc type shaping cutters are internal toothed hub types. PM materials and in special available, from which we can manufacture express shapcases high quality hard metals are used. ing cutters for special gearing tasks at very short notice. The express shaping cutters can generally be delivered within 10 business days.
Wafer cuters solid wafer cuters The wafer cutter is a coated one waytool, which represents Solid wafer cutters are used when a constant gear work the optimum tool status comparable to a spur toothed piece profile is required and thereby reducing the usable
shaping cutter. The thin, coated wafer disc is clamped in tool height. Solid wafer cutters are available for any kind a special wafer holder and mounted on the shaping cutter of spur or helical toothed gears with an optimum coating holder of the shaping machine like a shaping cutter. for each application. The solid wafer cutter has the same advantages as the wafer even when used with smaller
Advantages: batch size. No changes in the gear profile as a result of wear factured with different toothed sectors for up- and/or
Very easy machine adjustment reduced setup time down-stroke shaping processes. Fully coated tools always in use
Machine adjustment after wafer change not required
during one series of workpieces Shaving cuters Rack type cuters
shaving cutters are available for all standard gear-shaving Liebherr supplies all kind of rough-cutting and finishing processes in hobbed, preground or fully ground quality. rack type cutters that are required for manufacturing gears on suitable shaping machines.
The following types and limit ranges are available:
Module to This includes:
Helix angle up to 45 Standard and helical rack type cutters
Max. tool diameter 305 mm HKR rack type cutters
Max. tool width 65 mm Stepped rack type cutters
slotting: straight or spiral, also available with positive single-tooth rack type cutters front rake angle. Backing plates
Root shape: milled or drilled Grinding diagrams for optimum sharpening of the tools are optionally available
Rolling deburring discs Rolling chamfering discs
Rolling deburring discs are used for creating chamfers on Flexible rolling chamfering discs are used with the same the teeth at both faces of the gear. Rolling deburring discs workpiece gearing parameters and different tooth widths are available with an additional smoothing disc to minimise They can be supplied in sets or with holders for a specifíc waste on the faces of the gear workpieces. tooth width. Different chamfering types such as: As with the rolling deburring discs, the chamfers on the parallel teeth at both faces of the gears can be parallel,  comma-shaped or shaped or parallel with chamfers at the root of the teeth. parallel with chamfers at the root of the teeth are also available with face-bevelled workpieces. The The rolling chamfering discs can be designed for wet or tools are supplied already presetted and can be used for dry machining. An additional coating extends the already chamfering gears with the same gearing parameters and long tool life even further. the same tooth width, if there is no risk of collision with the workpiece contour.
Economical use of tools is guaranteed with the option of reversing the rolling deburring discs. When the wear limit of the rolling deburring discs is reached, the discs can be reversed and set up again in avery short time to re-use the tool Calibration tools Roling racks Calibration tools are specially designed for calibration of Rolling racks are manufactured for special customer resynchro sleeves for the automotive industry. High accuquirements and are generally used for the manufactureracy in matching the individual tool discs to form a block of splines. tool enables calibration of the synchro sleeves by broaching within very fine tolerances. Rolling racks are available up to the following maximum values:
The calibration tools are supplied preset as block tools module 1,6
and can be used for synchro sleeves with the same tooth length 1500 mm geometry. The use of special powder-metallurgical steels width 350 mm guarantees maximum tool 1ife. height 90 mm
Roliing dies Gauges Rolling dies are generally used for manufacturing conical Gauges are manufactured up to quality 3 as per spline, such as for synchro sleeves with broached internal and are supplied with an inspection certificate. spline. They can be used as síngle rolling die, single rolling die in a dual model and as set of two rolling dies. Rolling The following gauge types are available:
dies can have one or multiple flanks depending on the Master gears
requirements. The rolling dies are available with hobbed Plug gauge
or ground teeth dependíng on the required gear quality. Ring gauge
Subject to special manufacturing guidelines, our rolling Plug and ring gauges can be supplied as Go and No Go
dies have the longest possible tool life. gauges.