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herringbone gears

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Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002145
EISBN: 978-1-62708-188-7
...Abstract Abstract This article discusses the different classes of gears, namely, spur, helical, herringbone, crossed-axes helical, worm, internal, rack, bevel, or face-type. It describes the methods used to cut the teeth of gears other than bevel gears: milling, broaching, shear cutting...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... gears, helical gears generate axial thrust, which causes slight loss of power and requires thrust bearings. Fig. 2 Sections of a helical gear (a) and a helical rack (b). Herringbone Gears Herringbone gears ( Fig. 3a ), sometimes called double helical gears, are used to transmit motion...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006114
EISBN: 978-1-62708-175-7
... the Strength of Helical and Herringbone Gear Teeth,” AGMA 221.02, American Gear Manufacturers' Association , 1965 12. “AGMA Standard for Rating the Strength of Straight Bevel and Zero Bevel Gear Teeth” , AGMA 222.02, American Gear Manufacturers' Association , 1964 13. “AGMA Standard...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
... and as linear actuators. Figure 3 shows a large industrial reducer with a pair of double helical gears. (These are sometimes colloquially called herringbone gears if there is no gap between the helixes.) The photo is of the intermediate shaft gear and pinion and the low-speed gear. With the helixes...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003327
EISBN: 978-1-62708-176-4
... Factors for Determining the Pitting Resistance and Bending Strength of Spur, Helical, and Herringbone Gear Teeth,” AGMA 908-B89 (R1995), American Gear Manufacturers Association , 1995 Specimen Results Specimen Results Test Equipment Test Procedure Specimen Results Scoring...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005867
EISBN: 978-1-62708-167-2
... 0.77–0.83 0.1–0.2 <0.25 <0.25 0.1–0.25 <0.3 <0.04 <0.04 Source: Ref 26 Gear blank fabrication methods and induction considerations Table 1 Gear blank fabrication methods and induction considerations Materials Applications Considerations Forged blanks...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002166
EISBN: 978-1-62708-188-7
... the grinding wheel if the voltage drops for any reason. In addition to making carbide form tools, electrical discharge grinding is used to grind carbide in shapes such as lamination dies, crushing rolls, and tools of other kinds. It is also used for grinding other hard materials such as gear racks...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005802
EISBN: 978-1-62708-165-8
... 13.050 16.9 37.2 925 760–1015 30–40 845 150 58–63 Herringbone gear 4820 19.1 0.75 283.2 11.150 16.3 36 925 1145–1525 45–60 845 150 55–61 Shifter rail 1141 25.4 1.0 25.4 1.0 0.9 1 7 8 885 (b) 455–660 18–26 885 165 45–50 Spiral bevel gear 4620 25.4...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... often shows some evidence of ductility, such as a shear lip or a herringbone pattern emanating from the zone of slow cracking. Fig. 3 Aluminum alloy 7079-T6 aircraft landing-gear actuator beam fractured because of stress-corrosion cracking (a) Portion of a broken aircraft landing-gear actuator...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... contain easily identifiable regions of crack initiation, slow crack propagation and final rupture (see Fig. 3 ). Final rupture usually occurs by tensile overload. Thus, the area of final fracture often shows some evidence of ductility, such as a shear lip or a herringbone pattern emanating from the zone...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000621
EISBN: 978-1-62708-181-8
... Fig. 1004 An aluminum alloy 7075-T736 aircraft main landing gear forging, similar to that described in Fig. 1002 and 1003 , which was shot peened on its inner-diameter surface to enhance fatigue resistance. The shot-peened part withstood cycles far beyond the number required for acceptance...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005987
EISBN: 978-1-62708-168-9
...Mechanical properties of conventional gear alloys versus Ferrium alloys Table 10 Mechanical properties of conventional gear alloys versus Ferrium alloys Alloy Yield strength Ultimate tensile strength Core hardness, HRC Elongation, % Fracture toughness Surface hardness, HRC MPa...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001472
EISBN: 978-1-62708-173-3
.... Elongated porosity occurs in a herringbone pattern ( Fig. 1d ) Wormhole porosity: Characterized by elongated voids with a definite wormlike shape and texture ( Fig. 2 ) Fig. 1 Types of gas porosity commonly found in weld metal. (a) Uniformly scattered porosity. (b) Cluster porosity. (c) Linear...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... of the infrequently encountered term “intragranular” to describe transgranular features is discouraged due to its similarity in pronunciation to intergranular. All brittle fracture mechanisms can exhibit chevron or herringbone patterns that indicate the fracture origin and direction of rapid fracture progression...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... chevron or herringbone patterns, which indicate the fracture origin and direction of rapid fracture progression. Ductile cracking by MVC cannot have a herringbone pattern, although a macroscale radial pattern and chevrons can occur from MVC. River lines on a macroscopic scale may be revealed in glassy...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.9781627081672
EISBN: 978-1-62708-167-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... of a threaded connection, a set screw, or a keyway, can influence failure. It is also important if power is transmitted to or taken from the shaft by gears, splines, belts, chains, or torque converters. Manufacturing Records Manufacturing records may indicate when the part was made and the material...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003457
EISBN: 978-1-62708-195-5
... Engine uncontained failure damage Fuselage, body fairing, lower wing panels, horizontal stabilizer leading edge Tire separation Trailing edge flaps, lower wing to body fairings, landing gear doors, fixed wing panels Foreign object damage on ground Hail damage Radome, engine inlet cowls...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
... by torsional fatigue. (a) Shear groove designed to protect gear mechanism from sudden overload. Dimensions are in inches. (b) Star-shaped pattern on a fracture surface of the shaft. (c) Longitudinal and transverse shear cracks on the surface of the shear groove, which resulted from high peak loads caused...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.9781627081658
EISBN: 978-1-62708-165-8