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herringbone gears

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Published: 01 September 2005
Fig. 11 A typical one-piece herringbone gear. The opposed helixes permit multiple-tooth engagement and eliminate end thrust. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
... including prehardening processes, through hardening, and case hardening processes. bevel gears face gears gear design heat treating helical gears herringbone gears hypoid gears internal gears spiroid gears spur gears worm gears GEARS are machine elements that transmit rotary motion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250089
EISBN: 978-1-62708-345-4
... milling can also be used for cutting teeth in spur or helical gears and is often used for cutting coarse-pitch teeth in herringbone gears. Fig. 2 Relation of cutter and workpiece when milling teeth in a spur gear In practice, gear milling is usually confined to one-of-a-kind replacement...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420001
EISBN: 978-1-62708-452-9
..., a herringbone gear will be obtained. The advantage to the double-helical and/or herringbone gears is that the side thrust common to the single helix has been eliminated. Fig. 1-2. Helical gear and pinion. Internal Gear Both the spur gear set and the helical gear set may be designed so...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
... ( Ref 2 ): Not economical in low- and medium-quantity production Not normally suitable for production of worn gears, herringbone gears, and helical gears with helix angle exceeding 35° because of various pressing and tooling considerations In view of the press capacities required...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360121
EISBN: 978-1-62708-435-2
... The parameters for gearbox selection include: Helical gears should have a total contact ratio of not less than 2.0; double helical or herringbone is preferred. It is mandatory to use helical gears for speeds greater than 1220 m/min (4000 ft/min). Some designers are inclined to use spur gears for low-speed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250249
EISBN: 978-1-62708-345-4
... gear types (spur, helical, bevel, herringbone, etc.). These processes are used when gear teeth require high hardness, but size or configuration does not lend itself to carburizing and quenching the entire part. Both processes may also be used when the maximum contact and bending strength achieved...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250311
EISBN: 978-1-62708-345-4
... Abstract Mechanical tests are performed to evaluate the durability of gears under load. The chapter first discusses the processes involved in the computations of stress for test parameters of gear. Next, the chapter reviews the four areas of specimen characterization of a test program, namely...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... Abstract This chapter reviews the knowledge of the field of gear tribology and is intended for both gear designers and gear operators. Gear tooth failure modes are discussed with emphasis on lubrication-related failures. The chapter is concerned with gear tooth failures that are influenced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200007
EISBN: 978-1-62708-354-6
... 200 Striker Assembly 400 181 Draft Gear (Cast Steel Parts) 400 181 Rear Stop and Center Filler 436 198 Total 16,178 7,338 Figure 2-1 schematically shows a number of important railroad parts and assemblies. The side frame and the coupler are the only components normally...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270025
EISBN: 978-1-62708-301-0
... surface of a ductile material failed under tensile load. Source: Ref 3 Fast, unstable crack propagation may sometimes be manifested as a series of chevron marks or herringbone pattern on the fracture surface ( Fig. 4.2 ). The apexes of these chevrons point to the origin of fracture. Fig. 4.2...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630081
EISBN: 978-1-62708-270-9
...). These terms, brittle and ductile , are opposites, like black and white. For many parts it is desirable to have metal properties that are predominantly hard, strong, and wear resistant, accepting the accompanying brittleness. Examples are gear teeth, antifriction bearings, and various types of cutting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... THE TERMS ductile and brittle are opposites, like the colors black and white. For many parts, it is desirable to have metal properties that are predominantly hard, strong, and wear resistant, accepting the accompanying brittleness. Examples are gear teeth, antifriction bearings, and various types...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900251
EISBN: 978-1-62708-358-4
... of feathery (austenite plus M 6 C and MC carbides), herringbone (austenite plus M 6 C carbides), and blocky (austenite plus MC carbides) interdendritic eutectic morphologies in an as-cast M2 high-speed steel ( Ref 7 ). Fig. 14-4 Feathery, herringbone, and MC eutectics in M2 high-speed steel. (a) Light...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390173
EISBN: 978-1-62708-459-8
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060429
EISBN: 978-1-62708-261-7
...) that look like nested as to cause simultaneous absorption of carbon letters V ; sometimes called a herringbone and nitrogen by the surface and, by diffusion, pattern. The points of the chevrons can be create a concentration gradient. traced back to the fracture origin. Chromel. (1) A 90Ni-10Cr alloy used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400245
EISBN: 978-1-62708-258-7
... the surface luster of a metal by chemical treatment. chevron pattern. A fractographic pattern of radial marks (shear ledges) that look like nested letters V ; sometimes called a herringbone pattern. Chevron patterns are typically found on brittle fracture surfaces in parts whose widths are considerably...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7