Reduction_Gears_v1 - Reduction Gears v1 Maritime...

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Unformatted text preview: Reduction Gears v1.doc-8/17/2004 Maritime Professional Studies KP100 Introduction to Marine Engineering (IME) Segment Course Handout I. Topic Name: Reduction Gears II. Reference(s) Text: Ship Knowledge A Modern Encyclopedia Pages: N/A III. Topic Objectives A. Identify four major types of gears B. Identify the terms that are used to differentiate between the gears in a two-piece gear set C. State the purpose for a reduction gear COURSE HANDOUT: Reduction Gears Reduction Gears v1.doc-8/17/2004 2 IV. Topic Terminology • articulated • bearing, journal • bevel gear • bull gear • casing • double helical • double helical gear • double input • double reduction • gage (aka gauge) • gas turbine • gear • gear, bevel • gear, helical • gear, spur • gear, worm • helical gear • jacking gear • L.O. (or LO) • locked train • lube oil • lubricating oil • motive force • pinion • prime mover • quill shaft • radial motion • reduction gear • spur gear • steam turbine • worm gear COURSE HANDOUT: Reduction Gears Reduction Gears v1.doc-8/17/2004 3 V. Topic Materials & Information A. Major types of gears 1. Bevel a. The width of each gear tooth is tapered; i.e. one end of each gear tooth is thinner then the opposite end b. The gear teeth are NOT equidistant from the shaft c. Excellent for connecting shafts that are NOT parallel to each other d. Frequently used to connect shafts when one shaft is vertical and the other shaft is horizontal 2. Helical a. The teeth are parallel to each other b. Each end of the teeth are equidistant from the shaft c. The teeth are angled relative to the surface of the gear and therefore are NOT perpendicular to the ends of the gear d. Excellent torque capability 3. Spur a. The teeth are parallel to each other b. All teeth are parallel to the shaft c. The teeth are perpendicular to the ends of the gear d. Very common type of general purpose gear e. Least expensive gear type 4. Worm...
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This note was uploaded on 04/30/2008 for the course KP 100 taught by Professor Lenord during the Fall '06 term at United States Merchant Marine Academy.

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Reduction_Gears_v1 - Reduction Gears v1 Maritime...

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