Used Hobbing Machine for sale (64,949)

Condition: good (used), Year of construction: 1991, weight of the machine ca. ca. 6 t The design of the basic machine is characterised by the following features: Godeub Amfspfx Aqisbr - horizontal position of the workpiece spindle; vertical position of the milling spindle or milling head of the milling head - The workpiece is held between the workpiece headstock (left) and the tailstock (right). - the radial slide is mounted on the base (X-axis) - the axial slide moves on the radial slide (Z-axis) - the shift milling head is equipped with an automatic angle adjustment (A-axis); the shift slide (Y-axis) moves diagonally to the workpiece diameter - CNC controlled - IBH control - loading device - Many accessories Technical data: - largest milling module with hobs according to DIN 8002: 4.5 mm - largest milling module for high-performance milling: 3.0 mm - Number of teeth: 2 - 999 - max. workpiece diameter for manual loading: 200 mm - max. workpiece diameter for automatic loading: 150 mm - maximum workpiece length: 400 mm - largest / smallest milling cutter diameter: 102/40 mm - maximum cutter length: 230 mm - largest / smallest milling arbor diameter (standard): 32/16 mm - Axial slide path = largest milling length Z-axis: 300 mm - Radial slide path X-axis: 140 mm - Milling cutter shift path Y-axis: 100 mm - Milling stock path W-axis: 420 mm - Swivelling angle of shift milling head (left/right) A-axis: 50°/60° Milling coordinates: - Z-axis: 100 - 400 mm - X-axis: 1ß0 - 150 mm - Y-axis (end face of milling spindle): 50 - 230 mm - W-axis (face of tailstock spindle): 165 - 585 mm - Milling cutter speed range standard B-axis: 0 - 1500 rpm - Workpiece speed C-axis: 0 - 350 rpm Feed speeds: - X-axis: 3500 mm/min - Z-axis: 3500 mm/min - Y-axis: 4000 mm/min - W-axis: 5500 mm/min - V-axis (gantry loader): 80000 mm/min

Condition: used, Year of construction: 2007, x-travel 900 mm y-travel 300 mm z-travel 1000 mm control Siemens 840D max. workpiece dia. 1600 mm max. module 20 mm tip circle diameter 350 mm weight of the machine ca. 33500 kg dimensions of the machine ca. 10,53 x 6,38 x 4,68 m Technical details: Gsdowzypujpfx Aqisbr - x-travel: 900 mm - y-travel: 300 mm - z-travel: 1000 mm - Control system: Siemens Sinumerik 840D - Workpiece diameter - max.: 1600 mm - Module - max.: 20 mm - Head circle diameter: 350 mm - Milling spindle diameter: 375 mm - Total power consumption: 80 kVa - Machine weight approx.: 33500 kg - Space requirement approx.: 10.530 x 6.375 x 4.680 m Feed rate: - X-axis 1 to 3000 mm/min - Y-axis 1 to 3000 mm/min - Z-axis 1 to 4000 mm/min Spindle speeds in 1/min: - Tool 26 to 265 - Workpiece table 0 to 8 Equipment/accessories: - Motor milling head M 2 - Milling mandrels - Oil cooler - Technical documentation

Condition: ready for operation (used), Year of construction: 2008, functionality: fully functional, GP300 CNC gear hobbing machine, WET AND DRY MACHINING available as required. Both options are freely selectable. Gjdpfx Asxqn Tqoqisbr Siemens 840D Solution Line, 5-axis system, suitable for shaft and disc-type workpieces. Max. Ø300 mm, max. module 6, swivel range ±45°, axial travel 440 mm, hobbing power 15 kW, HSK-B80, table Ø300 mm, direct drive, speed 90–900 rpm. High precision, digital drive technology (Sinamics S120), automatic head positioning 0.001°, linear guides, safety retraction, temperature compensation, full enclosure.

Condition: excellent (used), Mikron Gear Hobbing Machine A33/0 – for Module 0.5 to 2.5 – rarely used Manufacturer: Mikron Model: A33/0 – Gear Hobbing Machine (vertical) Version: Base machine with standard milling head Condition: used, very good condition, machine has been rarely operated Color: green Technical Data Max. workpiece diameter: approx. 80 mm Max. hobbing length: approx. 150 mm Module range: approx. 0.5 – 2.5 Ideal for small gears in the module range 0.5 – 1.0 Main drive: 3 kW Electrical connection: 3 x 380 V AC, 50 Hz Total power consumption: approx. 9.5 kVA Dimensions & Weight L x W x H: approx. 1,450 x 1,380 x 2,080 mm Godpfjx A D Izox Aqijbr Weight: approx. 2,200 kg Special Features Very well-suited for manufacturing small gears (module 0.5 – 1.0) Machine was rarely used in production, therefore minimal wear Availability / Service Detailed photos and operating video available upon request Quotation including price, delivery terms, and lead time possible Subject to prior sale and errors.

Year of construction: 1984, condition: ready for operation (used), A Pfauter vertical CNC gear hobbing machine is available. Modules min./max.: 1/3, max. workpiece diameter: 150mm, max. tooth width: 150mm, milling head tilt: +/-45°, milling cutter axis-table axis distance: 10mm-160mm, table diameter: 160mm, table bore: 63mm. Tool holder: SK40, max. cutter diameter: 130mm, max. cutter length: 220mm, speed: 600rpm, feed: 1500mm/min, tangential path: 170mm, rapid traverse: 3m/min. Machine dimensions X/Y/Z: approx. 4000mm/3000mm/2500mm, weight: approx. 6500kg. On-site inspection is possible. Gbedpfowkih Esx Aqier

Condition: used, Year of construction: 1987, max. wheel diameter 4400 mm gear width 645 mm max. module 35 Control Siemens main drive motor 37 kW table diameter 2500 mm ical angle +/- 30 ° workpiece weight 40000 kg total power requirement 142 kVA weight of the machine ca. 75 t Partial overhaul 2006 5 controlled axes a, c, x, y, z Max. gear outer diameter 3000 mm Max. outer diameter for internal gears 3560 mm Max. module with hobs 30 Max. module with internal form cutters 18 Min. gear diameter 900 mm Axial feed travel 1800 mm Largest axial slide travel 1800 mm The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop Gedpfxsyqt S Ho Aqisbr If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: ready for operation (used), LIEBHERR - LORENZ S800 / Gear Hobbing Machine - Well-maintained machine with extensive accessories - 1x pallet / change gears - 1x pallet / hobs - 1x pallet / arbors - DOCUMENTATION - Max. workpiece length with tailstock 600 mm - Max. workpiece length with retracted tailstock 800 mm - Max. traverse of milling slide 360 mm - Maximum pitch cut on largest workpiece 5 PI / in standard range 8 PI - Spindle taper – milling spindle MK 5 - Milling arbors 22 / 27 / 32 / 40 mm - Max. milling diameter 186 mm - Max. milling cutter length 170 mm - Max. cutter shift 80 mm - Milling speeds 40 – 220 rpm - Infinitely variable feed rates / horizontal - Infinitely variable feed rates / vertical - Infinitely variable feed rates / tangential - Clamping table without coolant trough 550 mm - Clamping table bore 100 mm - Arbor taper MK 5 Gsdpfeyl Slhjx Aqisbr Dimensions (LxWxH): 3.6 x 1.8 x 1.9 meters / Weight: 5,000 kg Errors and omissions excepted.

Condition: like new (used), functionality: fully functional, workpiece weight (max.): 3 kg, feed length X-axis: 100 mm, feed length Y-axis: 100 mm, feed length Z-axis: 200 mm, workpiece diameter (max.): 180 mm, milling length: 200 mm, overall weight: 5,000 kg, rotational speed (max.): 3,000 rpm, rotational speed (min.): 400 rpm, tool diameter: 80 mm, Equipment: documentation/manual, rotational speed infinitely variable, This machine is completely dismantled and rebuilt from the ground up. During the overhaul, it undergoes comprehensive modernization with state-of-the-art technology and the latest premium-quality components. Following refurbishment, the machine is presented in a technical and visual condition equivalent to new – reliable, high-performance, and future-proof. Gsdpfx Asx Af A Hoqijbr The equipment and configuration can be tailored individually to your requirements, ensuring maximum productivity in your production environment.

Condition: used, functionality: fully functional, Maximum working diameter: 2100 mm Table size: 1800 mm Minimum diameter: 200 mm Gsdpfx Asylprfoqiobr Maximum number of teeth: 45 Max. module: 20 Weight: 40 tons

Condition: refurbished (used), functionality: fully functional, Universal Profile Hobbing and Thread Milling Machine ZFWVG 250x5000 / S7 • Thread milling • Gear hobbing • Longitudinal milling Max. workpiece diameter over saddle: 250 mm Max. workpiece diameter over bed guideway: 500 mm Spindle bore: 102 mm Tailstock quill travel: 100 mm Main motor: 4.0 kW Cross-feed motor (X-axis): 4.3 kW Longitudinal feed motor (Z-axis): 3.8 kW Electrical configuration Operating voltage: 400 V Control voltage: 24 V Frequency: 50 Hz Programmable logic control (PLC) for fixed machine functions Total connected load: 9.5 kW Milling length: 5,000 mm Space requirements: Length: 7,000 mm Width: 2,500 mm Height: 1,600 mm Net weight: 6,700 kg Standard accessories: • Standard thread milling attachment ApG • Max. milling diameter: 150 mm • Spindle taper: Morse 3 • Max. module for hobbing: Module 3 • Min./max. number of teeth for hobbing: 4–50 Gjdpfx Ajw Hquxjqisbr Options: • Hobbing attachment ApFW Hobbing of parallel and helical profiles up to module 7 Max. milling diameter: 150 mm Spindle taper: Morse 4 • Heavy-duty thread milling attachment ApGS Hobbing of parallel and helical profiles up to module 5 Max. milling diameter: 150 mm Spindle taper: Morse 4

Condition: ready for operation (used), Gear hobbing machine type FD320, FD500 and FD 800 Cugir Godecrd Nmjpfx Aqisbr Maximum module 6 to 10 mm Max. working diameter 320 to 800 mm

Condition: ready for operation (used), Year of construction: 1970, Gear hobber ZFWZ 6300x40 Manufacturer: WMW-MODUL Model: ZFWZ 6300x40/1 Year of manufacture: 1970 Max. workpiece diameter: 7100 mm Gbodpfx Aexln Iwsqier Gear width: 1500 mm Max. module: 45 Table diameter: 5300 mm Cutter diameter x width: 400x500 mm Max. helical angle: 45 degrees Hob diameter: 500 mm Hob speeds: 9–63 rpm Total power requirement: 47 kW Machine weight: 160 tons Equipped with standard hobbing head, tangential hobbing head, internal milling head, change gears, supports. Video available.

Condition: used, Year of construction: 2007, max. wheel diameter 380 mm gear width 540 mm max. module 7 Control SINUMERIK 840 D Axial travel 600 mm table diameter 317 mm table speeds 100 U/min milling head -swivable + / - 35 Grad milling spindle drive 27,00 kW milling spindle speeds (infinitely variable) 1500 U/min diameter of hob 160 mm cutter length max. 330 mm cutter speeds max. 3000 1/min hob dia. - max. 160 mm Gbjdpfx Aoyt Rvhjqisr swarf cutter lenght - max. 330 mm tangential travel max. 300 mm 10.000 mm/min tangential speed max. 3000 mm/min 7.500 mm/min oil volume 100 l coolant capacity 780 l Counterholder movement 540 mm total power requirement 50,00 kW weight of the machine ca. 16,00 t dimensions of the machine ca. 6,00 x 4,50 x H3,50 m for the following processes: axial hobbing, individual part milling, Worm wheel milling, roofing, deburring; NC tailstock

Condition: used, Year of construction: 2008, grinding diameter 160 mm dist. between centers 645 mm centre height 320 mm control SIN 840D turning speeds 27.000 U/min x-axis 550 mm y-axis 235 mm z-axis 300 mm A - axis 360 ° C-axis 270 ° Gbedpfexxbzdsx Aqijr total power requirement 20 kW

Condition: good (used), Year of construction: 2003, functionality: fully functional, workpiece weight (max.): 12,000 kg, feed length Y-axis: 300 mm, feed length Z-axis: 1,080 mm, table diameter: 1,200 mm, feed rate X-axis: 3 m/min, feed rate Y-axis: 500 m/min, feed rate Z-axis: 3 m/min, input current: 195 A, workpiece diameter (max.): 1,600 mm, milling spindle length: 450 mm, table bore: 400 mm, spindle speed (min.): 250 rpm, overall weight: 51,000 kg, power: 115 kW (156.36 HP), Equipment: documentation/manual, Liebherr high-performance gear hobbing machine LC1502 in good condition Controller Liebherr LH90 V4, Bosch Rexroth drives Extensive accessories such as BHG, cooling unit for lubrication and coolant, extractor, cutter arbors, various software packages/limit value extensions, and complete documentation. We can also assist with setup and commissioning up to production, depending on effort! Gsdjwqm A Tjpfx Aqisbr

Condition: ready for operation (used), functionality: unexamined, Gear hobbing machine – Celta model C4, with a cutter diameter of 480 mm, maximum workpiece diameter of 550 mm, and maximum module of 8. Total power: 9 kW, estimated weight: 4500 kg. Gbsdpfozbzygsx Aqier

Condition: excellent (used), Year of construction: 1980, Horizontal gear hobbing and threading machine for gears, splined shafts, worm screws, threads, and pinions up to 5 meters in length, complete with 3 milling heads models APFW, APGS, APG, set of gears, various steadies, and indexing device. Gedpfxjyba Rwe Aqijbr

Condition: used, functionality: fully functional, table diameter: 430 mm, The price is for both machines – only sold as a set. Make: STAEHELY SH 500 Accessories: change gears, arbors, and one machine with tangential milling head (see photos)!!!!! Table diameter = 430 mm Max. gear diameter = 500 mm Gedpfxoxfub De Aqiobr Gear width = 240 mm Module = 6

Condition: ready for operation (used), Horizontal gear hobbing machine with master hob, Precimo model HR 3-ND-15. Maximum workpiece diameter: 250 mm. Maximum module: 7. Maximum diameter for module 7: 135 mm. Maximum diameter 250 mm for module 5. Maximum hobbing length: 335 mm. Minimum number of teeth to cut: z6. Maximum distance between centers: 735 mm. Maximum hob speed: 435 rpm. Estimated weight: 3500 kg. Gbedsy Swl Uopfx Aqior

Condition: used, functionality: fully functional, wheel width: 800 mm, module 1-6 diameter max 600mm digital reading Complete machine with documentation, tool holders, change gears,... Gjdpfx Aqjxhck Sjisbr

Condition: ready for operation (used), Year of construction: 1977, functionality: fully functional, workpiece weight (max.): 2,000 kg, thread length: 3,000 mm, Ø400, LENGTH 3000 mm, MODULE 8-10, HELICAL AND STRAIGHT GEAR CUTTING. Godpjzkrgbjfx Aqiobr

Condition: used, Manufacturer: WMW Type: ZFW-Z 160x3 Gear hobbing machine Max workpiece diameter: ca. 160 mm Max modul: 3 Operated manual and semi-automatic Structure: Sturdy, precision-engineed machine designed for high accurance in gear production For limited period 10000 Euro Gbjdpfx Aqeyy N Hyoior for 1x WMW gear hobbing machine 2x WMW UPW25 thread rolling machines!!!!! Just for limited period 2x WMW UPW25 1x WMW gear hobbing machine All for just 10.000 Euro !!!!!

Condition: ready for operation (used), Year of construction: 1989, operating hours: 2,100 h, functionality: fully functional, thread length: 880 mm, feed length X-axis: 1,000 mm, feed length Z-axis: 100 mm, feed rate X-axis: 1 m/min, feed rate Y-axis: 5 m/min, position of the milling head: Horizontal, swivelling, center height: 1,060 mm, type of input current: AC, power of feed motor: 4,000 W, milling spindle length: 200 mm, spindle bore: 90 mm, spindle speed (max.): 400 rpm, spindle speed (min.): 25 rpm, mandrel length: 200 mm, collet bore: 90 mm, clamping length: 880 mm, workpiece diameter (max.): 500 mm, Thread Milling and Gear Hobbing Machine MSZ 5A352ПФ2 The MSZ model 5A352ПФ2 is a universal thread milling and gear hobbing machine, designed for machining splines, worms, and cylindrical gears by milling and hobbing processes. Manufactured in 1984, the machine is intended for industrial applications requiring reliable performance, versatility, and repeatable accuracy. The machine is suitable for workpieces with a maximum length of 1000 mm and a maximum diameter of 500 mm. The maximum machining (spline/thread) length is 880 mm, and the machine supports gear cutting up to module 8, covering a wide range of thread and gear machining tasks. Helix and thread angles up to 30° can be machined, allowing flexible use in mechanical engineering and transmission manufacturing. The milling and hobbing spindle features a 90 mm spindle bore and supports cutting tools with a maximum hob diameter of 160 mm and a maximum hob length of 200 mm. The spindle operates in a speed range of 25 to 400 rpm, providing suitable cutting conditions for different materials and tool diameters. The main drive motor offers multiple power and speed stages (5 / 6.3 / 10 kW at 750 / 1000 / 1500 rpm). The machine is equipped with stepless longitudinal and radial feeds, with longitudinal feed rates from 2 to 100 mm/min and radial feed rates from 2 to 50 mm/min, enabling precise control during machining operations. The milling head is horizontal and swivelling, and the machine allows accurate synchronization for thread milling and gear hobbing operations. With overall dimensions of approximately 3100 × 2270 × 2100 mm (up to 3540 × 2515 × 2100 mm with auxiliary equipment) and a total weight of about 7890–8500 kg, the 5A352ПФ2 features a rigid, heavy-duty construction that ensures excellent stability and vibration damping. The machine operates on three-phase AC power (380 V, 50 Hz) and is equipped with a PU F5007 control system. Condition: *Used machine *Ready for operation *Fully functional *Operating hours: approx. 2,100 h Scope of delivery: *Complete set of change gears Gsdpfx Asx Unpvsqisbr *Technical passport (Russian) *Operating manual (Russian) Typical applications: *Thread milling *Gear hobbing (spur gears, worms) *Machining of transmission components *General mechanical engineering *Repair and small- to medium-series production

Condition: ready for operation (used), Year of construction: 1966, operating hours: 10,000 h, functionality: fully functional, workpiece weight (max.): 3,000 kg, wheel width: 400 mm, feed length X-axis: 483 mm, feed length Y-axis: 381 mm, feed length Z-axis: 521 mm, rotary table diameter: 740 mm, table diameter: 740 mm, total length: 4,500 mm, wheel diameter: 1,000 mm, gear diameter: 1,000 mm, total height: 2,450 mm, total width: 2,450 mm, input frequency: 50 Hz, workpiece diameter (max.): 1,000 mm, type of input current: three-phase, spindle speed (max.): 200 rpm, table bore: 89 mm, spindle speed (min.): 50 rpm, grinding spindle motor power: 7,500 W, overall weight: 8,000 kg, rotational speed (max.): 200 rpm, rotational speed (min.): 50 rpm, table load: 3,000 kg, helix angle: 45 °, Equipment: documentation/manual, rotational speed infinitely variable, Machine Description — Churchill U 3615 Gear Hobbing Machine The Churchill U 3615 is a heavy-duty gear hobbing machine designed for accurate and reliable cutting of spur and helical gears in industrial production environments. Built with a rigid cast-iron structure, the machine ensures excellent stability, low vibration, and consistent machining quality during continuous operation. The machine is capable of cutting gears with a maximum diameter of 1,000 mm without tailstock and 863.6 mm with tailstock, and supports workpieces weighing up to 3,000 kg. A maximum gear face width of 400 mm and a maximum module of 10 allow machining of medium to large-sized gears. The rotary table has a diameter of 740 mm, is equipped with six T-slots, and features a table bore of 89 mm, providing secure and precise workpiece clamping. The machine supports helical gear cutting up to ±45°, expanding its application range. Gjdjx Itfiepfx Aqijbr The hobbing spindle accepts tools up to 180 mm in diameter and 240 mm in length. Spindle speed is infinitely variable from 50 to 200 rpm, allowing optimal cutting conditions for different materials and gear geometries. Feed movements are controlled via P.I.V. variable drives, offering smooth and precise adjustment of vertical, horizontal, and tangential feeds, as well as intermittent and continuous hob shifting. The machine is powered by a 7.5 kW main motor and operates on three-phase power at 50 Hz. With overall dimensions of approximately 4,500 × 2,450 × 2,450 mm (L × W × H) and a total weight of around 8,000 kg, the Churchill U 3615 is a solid and dependable solution for heavy-duty gear manufacturing. Manufactured in 1966, this machine is fully functional, ready for operation, and supplied with a full set of change gears, technical passport, and operator’s manual, making it well suited for workshops seeking a proven and durable gear hobbing solution. Overall, the Churchill U/PH 3615 offers: -Heavy-duty, industrial-grade build quality -Large part capacity and flexible travel ranges -Adjustable spindle speeds and feed rates -Reliable operation for continuous gear production

Condition: ready for operation (used), Year of construction: 1986, operating hours: 1,200 h, functionality: fully functional, total height: 1,520 mm, total length: 2,580 mm, total width: 1,440 mm, workpiece weight (max.): 200 kg, spindle speed (max.): 2,600 rpm, spindle speed (min.): 1,500 rpm, feed length X-axis: 2,120 mm, feed length Y-axis: 250 mm, feed length Z-axis: 150 mm, type of input current: AC, grinding wheel diameter: 250 mm, overall weight: 3,730 kg, grinding length: 280 mm, rotational speed (min.): 1,500 rpm, rotational speed (max.): 2,600 rpm, center height in crank: 115 mm, center height: 115 mm, collet bore: 55 mm, grinding spindle speed: 2,600 rpm, feed rate X-axis: 12 m/min, pivoting range: 45 °, travel distance X-axis: 2,120 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 150 mm, center width: 280 mm, grinding spindle motor power: 3,000 W, table length: 2,800 mm, table width: 250 mm, power: 6.5 kW (8.84 HP), height adjustment type: mechanical, workpiece diameter (max.): 235 mm, grinding diameter: 250 mm, input frequency: 50 Hz, disc diameter: 250 mm, input voltage: 380 V, space requirement width: 1,440 mm, space requirement length: 2,580 mm, space requirement height: 1,520 mm, grinding wheel speed: 2,100 rpm, distance table to spindle center: 362 mm, tool diameter: 235 mm, workpiece length between centers: 280 mm, distance between centers: 280 mm, Hob Sharpening Machine 33C (ZZS) 3A662 (Gear hobbing cutter grinding machine) The 33C (ZZS) model 3A662 is a specialized hob sharpening machine designed for precise sharpening and regrinding of gear hobs and gear cutting tools. Manufactured by 33C (Soviet Union), this machine is intended for industrial tool rooms and gear manufacturing facilities requiring reliable accuracy and repeatable grinding quality. Gbsdpfxex Nprbj Aqier The machine is suitable for sharpening hobs with a maximum diameter of 235 mm and a maximum length of 280 mm. It supports hobs with 4 to 30 flutes and allows grinding of straight and helical flutes with a helix angle range from 0° to 45°, covering a wide range of gear cutting applications. The grinding spindle is designed for grinding wheels with diameters from 200 to 250 mm. Spindle speed is adjusted via step pulleys and offers four speed stages: 1500 / 1900 / 2100 / 2600 rpm, ensuring flexibility for different tool sizes and materials. The machine is equipped with a dividing mechanism and supplied with a complete set of change gears, allowing accurate indexing during the sharpening process. A hydraulically driven table provides smooth longitudinal movement and stable grinding conditions. With overall dimensions of approximately 2580 × 1440 × 1520 mm and a machine weight of about 3730 kg, the 3A662 features a rigid and robust construction, providing excellent vibration damping and long-term operational stability. The machine operates on three-phase AC power (380 V / 50 Hz) and is supplied with original factory documentation. Key Features: *Specialized hob sharpening machine *Max. hob diameter: 235 mm *Max. hob length: 280 mm *Number of flutes: 4 – 30 *Helix angle range: 0° – 45° *Grinding wheel diameter: 200 – 250 mm *Grinding spindle speeds: 1500 / 1900 / 2100 / 2600 rpm *Hydraulically driven table *Dividing mechanism with full set of change gears *Rigid industrial construction (approx. 3730 kg) *Original technical passport and manual (Russian) Typical Applications: *Sharpening and regrinding of gear hobs *Maintenance of gear cutting tools *Tool room operations in gear manufacturing *Repair and refurbishment of worn hobs *Small- and medium-series gear production support