GNH
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Catalog excerpts

GNH - 1

GNR Giant Portable Hone For large diameter work on deep bores, production honing, or parts with limited access for stone adjustment in diameters larger than 254mm (10") CUSTOM TOOLING PORTABLE TOOLING STANDARD TOOLING STANDARD MANDRELS Additional Hone Heads Extend the Diameter Range GNR-1010 Remote-Feed Giant Hone assembled with honing stones. Will hone bores up to 304mm (12") long as shown. Order additional drive shafts for longer bores. All giant hones require 2 sets of W47 or WY51 stones to load the hone. (See Tables on page 146 for Stone sets for GNR Hones.) The remote feed permits the operator to expand the stones at any time while the honing head is running in the bore, as well as when the hone is stopped. The operator controls the amount of stone expansion and the honing pressure by braking the feed wheel while the hone is turning. The remote feed also permits the operator to quickly retract the stones and remove the hone from the bore when the hone is stopped. MACHINE ACCESSORIES Drive Source Drive motors of 2.2-3.7KW (3 to 5 HP) provide adequate torque to turn the hone. These hones may be driven by a rigidly mounted power source such as a radial drill press or a large lathe; 29 mm (1-1/8") chuck capacity is required. Remote-Feed Giant Hones are equipped with two universal joints which allow the honing head to align itself with the workpiece. Recommended RPM: To establish optimum RPM for your application, divide 1200 by bore diameter in inches. EX: 1,200÷10=120 (RPM). Or, divide 30,000 by bore diameter in mm. EX: 30,000÷254=118 (RPM). FILTERS HONING FLUIDS & COOLANTS Remote-Feed Giant Hones Diameter Range mm in 254-381 381-508 508-711 711-914 914-1118 1118-1321 1321-1524 + Special Order - Contact Customer Service Giant Hone Head GNR-920 Remote-Feed Giant Drive Unit Additional Hone Heads Diameter to be Honed mm inches 254-381 381-508 508-711 711-914 914-1118 1118-1321 1321-1524 Part Number for Shipping Weight Giant Hone Head** kg lbs. GNR-1025 GNR-1525 GNR-2025 GNR-2825 GNR-3625+ GNR-4425+ GNR-5225+ ** These Hone Heads can be converted to complete Giant Hones at any time by purchasing GNR-920 Remote-Feed Giant Drive Unit. + Special Order - Contact Customer Service Drive Shaft Extensions To Order: Select the correct Giant Hone, drive shaft extension (for bore length 304 mm [12"] or longer and universal joint, if needed). TECHNICAL DATA A complete Remote-Feed Giant Hone consists of a GNR-920 RemoteFeed Giant Drive Unit and a Giant Hone Head, as illustrated. The GNR-920 Remote-Feed Giant Drive Unit can be used with other Giant Hone Heads to extend the diameter range. Select additional Hone Heads as needed from the table below. Giant Hones will handle bore lengths up to 305mm (12") without Drive Shaft Extensions. When Extensions are necessary, they can be used one at a time or in multiples, making it possible to hone practically any bore length. All Drive Shaft Extensions are installed between the hone head and the feed wheel as illustrated above. The feed wheel remains outside the bore being honed, accessible for stone expansion. Drive Shaft Extensions Extension Length mm in Part Number

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