Jones & Shipman Precision Limited
Farmington, CT 06032
Jun 08, 2009 Holroyd Gear and Thread Grinder, model GTG2, offers precision grinding of helical/spur gears in diameters up to 350 mm. System enables users to grind small batches of gears to DIN and AGMA quality standards. On-board intelligence includes 3D scanning as well as stress prediction software which allows machine to optimize gear design. Machine can also produce master gears, precision prototyping, and timing gears for use in aerospace applications.

Mitsubishi Heavy Industries America
Leetonia, OH 44431
Feb 04, 2009 Used to grind internally toothed ring gears, ZI20A optimizes grinding speed (sliding velocity) via barrel-shaped and multi-threaded grinding wheel, made of cubic boron nitride (cBN), attached to main spindle. This method enables grinding by high-speed rotation of multi-threaded type grinder wheel. Rotation synchronous control technology achieves grinding speeds through spindle rotations: 15,000 rpm for main spindle that rotates grinding wheel and 6,000 rpm for work-piece spindle.

Gleason Corp.
Rochester, NY 14692 2970
Dec 23, 2008 Providing hard finish grinding of cylindrical gears, Genesis® 160TWG Threaded Wheel Grinder features high-speed, cam-driven double grip loader to maximize floor-to-floor times. It also integrates stock dividing sensor into grinding head that automates stock dividing using machine's NC motions. For high volumes, diamond-plated master dressing system integrates into clamping fixture and CNC Dressing Unit with single-flank dressing tool is available to maximize flexibility.

Mitsubishi Heavy Industries America
Leetonia, OH 44431
Dec 03, 2008 Able to process workpieces with ODs up to 150 mm, SE15A gear shaping machine employs counterbalancing shafts that reduce vibration and noise for stable machining at max speed of 2,000 spindle strokes/min. Gear hobbing machine, GE25A, is equipped with gear-tooth chamfering device and achieves cycle time of 40 sec. It can machine workpieces with up to 250 mm ODs at speeds of 250 m/min. Both machines come with software for setting conditions and graphic display of operating status.

Reishauer Corp.
Elgin, IL 60123 1205
May 02, 2008 RZ 303C Precision Gear Grinding Machine includes gearless planetary drives, acoustic sensing for alignment of dressing diamonds, and LNS low noise shifting. Main column carries grinding spindle, and slide rotates 180º in total - it rotates 90º to facilitate wheel change and another 90º to perform wheel dressing operations. Onboard loading system transports unground parts into high-production Gear Grinder. Parts can be organized in stacks of steel or plastic baskets.

Reishauer Corp.
Elgin, IL 60123 1205
May 02, 2008 Model RZ 1000 features gearless planetary drive and workspindle with deviation of less than 0.3 arc-sec peak to peak. C1 axis that houses grinding spindle and all of its related axes rotates 180° to allow wheel change and manual or automatic loading of workspindle. Base is constructed of stainless steel, while tailstock, workspindle assembly, and tool holding axes are made of cast iron. Controlled by HMI software, 12-axis machine also includes touch trigger probe.

Gleason Corp.
Rochester, NY 14692 2970
Apr 01, 2008 Employing carbide substrates and coatings, OPTI-CUT(TM) Series is designed for gear gashing, shaping, and hobbing. Wear is accommodated by indexing inserts to new cutting edge, with 4 edges available before insert needs to be replaced. For secure clamping, insert screw clamping system uses angled clamping screws rather than screws that clamp at right angles to insert. Cutters are suited for industries where large cylindrical gears are used including mining and power generation.

Gleason Corp.
Rochester, NY 14692 2970
Oct 12, 2007 Available for internal or external rough or finish gashing, as well as shaping and hobbing, Opti-Cut(TM) Gear Cutting Tools are suitable for larger gears, particularly for wind energy, truck, tractor, and power generation markets. With replaceable indexable inserts, tool life, surface finish, and part accuracy are consistent.

Gleason Corp.
Rochester, NY 14692 2970
Feb 27, 2007 Featuring direct-drive spindles and Siemens CNC controls, threaded wheel Model 300TWG grinds cylindrical gears up to 300 mm diameter. It can be equipped with diamond-plated master dressing gear system that can rapidly dress multi-start grinding wheel, regardless of number of starts, making it suited for high volume production environments. Optional high-speed, 2-station ring loader with spin-dry station is available.

Gleason Corp.
Rochester, NY 14692 2970
Sep 18, 2006 Based on single-piece frame cast from polymer composite material, Genesis(TM) 130H can be installed and re-located with no special lifting equipment. Direct-drive spindle motors eliminate need for mechanical adjustments, while cam-driven double gripper loader enables part load/unload times of 2 sec. Work area is isolated from machine frame to minimize thermal expansion from contact with hot chips. Stainless steel cutting chamber with steep inclination ensures that chips fall clear of work area.

Drake Mfg. Services
Warren, OH 44485 1147
Sep 12, 2006 Equipped with menu-driven control featuring Gear Smart(TM) programming, 5-axis Model GS:G² allows part changeovers in 15 min or less. It can grind from Mod 0.5 to 8 from 25-250 mm pitch diameter to AGMA 12 specification. Machine includes CNC contour diamond roll dressing, constant surface speed as wheel wears, infinitely variable wheel and work speeds selectable for roughing and finishing, and CNC controlled helix and work rotation.

Niagara Gear Corp.
Buffalo, NY 14217 2513
Nov 08, 2004 Gleason® 245TWG Threaded Wheel Grinder maintains critical size requirements on consistent basis, but also enables hard finishing using metal removal rates. Thermal compensation via sensors throughout process ensures accuracy and part-to-part consistency. Direct-drive grinding spindle offers speeds in excess of 60 m/sec. In addition to savage grinding, machine can grind gear segments, gears with intermittent teeth, and pump gears having low numbers of teeth.

Reishauer Corp.
Elgin, IL 60123 1205
Sep 28, 2004 Series RZ150 incorporates 2 direct-drive work spindles, acoustic sensing for alignment of dressing diamonds, and automatic fine balancing of wheel on grinding spindle. Multi-spindle column that carries work spindles and dressing spindle rotates 180º to facilitate automatic loading of workpieces. Low Noise Shifting directs movement of machine during grinding to produce random surface texture in micro-range, preventing discrete excitations of ground gear when running with its mate.

Gleason Corp.
Rochester, NY 14692 2970
Sep 23, 2004 Model 245TWG High Speed Threaded Wheel Grinder uses direct-drive spindles on grinding and work spindles, allowing higher grinding wheel speeds and elimination of gears, belts, and other mechanical drivetrain components. Gleason master dressing gear system can dress multi-start grinding wheels, and for small lot production machine can be equipped with conventional CNC dressing unit. Machine also features automated carousel loading.

Gleason Corp.
Rochester, NY 14692 2970
Sep 23, 2004 With capacity for gears up to 100 mm in diameter, Model P 90 employs direct-drive spindles for hob head and work spindle. Fully integrated gantry loader system, with buffer storage, adapts easily to different part types. Designed for dry hobbing, unit can also cut wet or dry with carbide and high-speed steel hobs. Machine has 3.5 sq m footprint and uses Siemens CNC controller. It can also be used for worm milling and can be arranged for grinding special profiles.

Drake Mfg. Services
Warren, OH 44485 1147
Sep 21, 2004 Built on mineral-filled cast polymer base, 6-axis GS:G2 produces gears from 1–12 in. dia, employs near net-shaped or hobbed gears, and requires 15 min of setup. Machine requires users to install proper tooling and enter part form, dress, and grind parameters into control in order to start-up new jobs, while menu-driven screens and Gear Smart™ Programming facilitate operation. Product features dual wheel machining and infinitely variable wheel speeds and feeds.

Drake Mfg. Services
Warren, OH 44485 1147
Sep 21, 2004 Able to handle workpiece diameters from 6–36 in., GS:H machines accept operator-entered workpiece and material parameters and GearSmart software calculates feeds and speeds. Products utilize Fanuc control, million-count encoders on all axes, servo-driven hob, and direct-drive linear axes. Pre-loaded ground ball screws provide consistent tooth spacing, and CNC provides data storage for hob life management, part definition, hob geometry, and process data.

Koepfer America, L.L.C.
South Elgin, IL 60177 1162
Jul 13, 2004 Model 300 provides max pitch of 4.0 mm with max workpiece diameter of 195 mm, and max workpiece length of 500 mm when manually loading. With automatic loading, max workpiece diameter is 140 mm and max workpiece length is 300 mm. Machine includes direct-drive digital work and cutter spindles, as well as composite epoxy bed, which ensures high static, dynamic, and thermal stability. Optional CNC-controlled gantry automation system is available.

Koepfer America, L.L.C.
South Elgin, IL 60177 1162
Jul 12, 2004 KOEPFER KAPP KX120 is equipped with BWO 900 CNC control for hard-finishing operations of gears and shafts. Able to accomplish all gear-cutting applications, machine employs direct-drive 12,000 rpm grinding head and KAPP CBN-plated, 80 mm OD, multi-thread grinding worms. Delivering continuous grinding process, it is available with automation system for loading and unloading components in production environment.

Reishauer Corp.
Elgin, IL 60123 1205
Jun 17, 2004 Utilizing continuous generating method, RZ150 High-Performance Gear Grinding Machine incorporates 2 direct drive work spindles and acoustic sensing for alignment of dressing diamonds. It also features automatic fine balancing of wheel on grinding spindle and LNS (low noise shifting). Multi-spindle column that carries work spindles and dressing spindle rotates 180º to facilitate automatic loading of workpieces. It also houses diamond roll to perform wheel dressing activities.