Download the September/October 2004 Issue in PDF format - Gear ...

More documents

Recommendations

Info

SPIRAL BEVEL GEARS (Transmissions) Spiral & Straight Bevel Gear Manufacturing. Commercial to aircraft quality gearing. Spur, helical, splined shafts, internal & external, shaved & ground gears. Spiral bevel grinding. Midwest Transmissions & Reducers. ISO compliant & AS 9100 compliant. MIDWEST GEAR & TOOL, INC. 12024 E. Nine Mile Road Warren, MI 48089 rosscr@attglobal.net CONTACT: CRAIG D. ROSS (586) 754-8923 FAX (586) 754-8926 Clarification The article “The Gearless Hydrostroke,” from the July/August 2004 issue of Gear Technology, included the statement: “To date, CNC guide technology hasn’t allowed shapers to be used for high production. The technology can’t produce helical gears at a rate as high as a dedicated mechanical system.” The statement should have read: “In some cases, CNC guide technology hasn’t allowed shapers to be used for high production. Some CNC guided shapers can’t produce helical gears at a rate as high as a dedicated mechanical system.” A number of manufacturers produce CNC guided gear shapers for high production environments. We apologize for any confusion the statement may have created. —The Editors LETTERS TO THE EDITOR Dear Editors: Thank you for another issue full of interest. I would like to comment on the paragraphs under the heading “Falk: A Gear Company” from the article on The Falk Corp. (pp. 9–13 in the July/August 2004 issue). I disagree that the electric motor led to the rise of gear driven machinery at this time (the 1890s). The AC motor was introduced as a machine drive in 1887, but it was very slow to catch on. By 1909 in well over 100 gear machines, only four were available with an electric motor—one each in France and England and two in the U.S.A. The gear market was going through a dramatic increase, firstly for chainless bicycle bevel gears, secondly for a variety of road and rail transport gears and third for helical and herringbone gears for steam turbines, electric trams and locomotives. The herringbone patent mentioned in the article was, I deduce, for the special “Wüst” tooth form, as the herringbone gear was included in James White’s “Century of Inventions” in 1821. The Wüst helical hobbing machine was made by C.E. Wüst of Zurich, Switzerland. Whereas other machines were cutting herringbone gears by the two-piece method, this was the first one-piece herringbone hobber. The cuts were staggered so the hob runs into space. It had a very large capacity, was beltdriven and, I suspect, took a great amount of skill to operate. Yours truly, William P. Crosher (Editor’s note: Mr. Crosher, a consultant working with Flender Graffenstaden, is also a historian of the gear industry. He is currently writing a book on gearing that includes many historical details like the ones above.) Do you have comments on a recent issue of Gear Technology? Do you have valuable information to add to any of the subjects we’ve discussed? Please send your letters and comments to: Gear Technology P.O. Box 1426 Elk Grove Village, IL 60007 USA Fax: (847) 437-6618 E-mail: wrs@geartechnology.com 10 SEPTEMBER/OCTOBER 2004 • GEAR TECHNOLOGY • www.geartechnology.com • www.powertransmission.com
Quality Spiral Bevel Tools A/W Systems Co. is your quality alternative manufacturing source of spiral gear roughing and finishing cutters and bodies. We can also manufacture new spiral cutter bodies in diameters of 5" through 12" at present. A/W can also supply roughing and finishing cutters for most 5"–12" diameter bodies. Whether it’s service or manufacturing, consider us as an alternative source for cutters and bodies. You’ll be in for a pleasant surprise. Royal Oak, MI 48067 Tel: (248) 544-3852 • Fax: (248) 544-3922 Come See Us At Booth #7218–IMTS 2004.
Page 1 and 2: GEAR TECHNOLOGY SEPTEMBER/OCTOBER 2
Page 3 and 4: IMTS ‘04 BOOTH #B-6902 new Lean M
Page 5 and 6: KAPP TECHNOLOGIES The best is now a
Page 7 and 8: No matter how you need your gears m
Page 9: THE We know that you are inundated
Page 15 and 16: Pack your bags for a fun-filled wee
Page 18 and 19: Dura-Bar Plus is a new engineered i
Page 20 and 21: IMTS COVERAGE Gleason 245TWG Thread
Page 22 and 23: IMTS COVERAGE A New Heavy-Duty Hobb
Page 24 and 25: Why Grinding… …when you can Fä
Page 26 and 27: Your quality needs keep growing—
Page 28 and 29: IMTS COVERAGE Hangsterfer’s Labor
Page 30 and 31: KAPP TECHNOLOGIES The best will be
Page 32 and 33: IMTS COVERAGE Kapp Technologies 287
Page 34 and 35: IMTS COVERAGE Hangsterfer’s Offer
Page 36 and 37: IMTS COVERAGE SureFire: Bijur’s N
Page 38 and 39: IMTS COVERAGE Workholding Pratt Bur
Page 40 and 41: IMTS SHOWSTOPPERS A/W Systems Booth
Page 42 and 43: IMTS SHOWSTOPPERS ADVERTISING SECTI
Page 44 and 45: IMTS SHOWSTOPPERS Dura-Bar CERATIZI
Page 46 and 47: Surface Damage Caused by Gear Profi
Page 48 and 49: For the evaluation of the grinding
Page 50 and 51: If axial advance speeds of v f = 60
Page 52 and 53: METALCASTELLO ITAL ALY • Spur & H
Page 54 and 55: nificantly higher compared to the g
Page 56 and 57: High Speed Steel Properties: Differ
Page 58 and 59: High Speed Steel Properties: Differ
Page 60 and 61: Conversation with Joe Franklin, AGM
Page 62 and 63:
AGMA’s Training School for Gear M
Page 64 and 65:
AGMA Strategic Objectives: • Cont
Page 66 and 67:
Simulation of Hobbing for Analysis
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
TECHNICAL CALENDAR September 8-14
Page 74 and 75:
YK5120 CNC GEAR SHAPING MACHINE ( 2
Page 76 and 77:
PRODUCT NEWS New Flat Honing Machin
Page 78 and 79:
CLASSIFIEDS WEBSITES www.gearmotion
Page 80 and 81:
SERVICE Inspection/ Correction Data
Page 82 and 83:
ADDENDUM Gear Greenbacks Imagine th
Page 84:
The Gearless Gear Shaper The shape
show all

Download the September/October 2004 Issue in PDF format - Gear ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?