1-20 of 21 Search Results for

spiral bevel gears

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001501
EISBN: 978-1-62708-221-1
... Abstract A spiral bevel gear and pinion set that showed "excessive wear on the pinion teeth" was submitted for analysis. This gear set was the primary drive unit for the differential and axle shafts of an exceptionally-large front-end loader in the experimental stages of development...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001496
EISBN: 978-1-62708-231-0
... Abstract A failed spiral gear and pinion set made from 4320H Ni-Cr-Mo alloy steel operating in a high-speed electric traction motor gear unit driving a rapid transit train were submitted for analysis. The pinion was intact, but the gear had broken into two sections that resulted when two...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001500
EISBN: 978-1-62708-221-1
... Abstract A ‘worn-out’ spiral bevel gear and pinion set was submitted for examination and evaluation. This was a spiral bevel drive set with the gear attached to a differential. The assembled unit was driving a new, large, experimental farm tractor in normal plowing and tilling operations...
Image
Published: 01 June 2019
Fig. 1 Carburized 4817 steel spiral bevel gear. The gear broke from fatigue at acute-angle intersections of mounting holes and tooth-root fillets as a result of through hardening. Dimensions given in inches More
Image
Published: 01 January 2002
Fig. 48 Carburized 4817 steel spiral bevel gear. The gear broke from fatigue at acute-angle intersections of mounting holes and tooth-root fillets as a result of through hardening. Dimensions given in inches More
Image
Published: 01 January 2002
Fig. 17 Spiral bevel gear tooth. Tooth-bending fatigue with origin at the apex of the drilled bolt hole, which terminated just below the root radius. 0.5× More
Image
Published: 01 January 2002
Fig. 27 Spiral bevel gear teeth. Original pitting low on the active profile gives initiation to a fast and extensive progression of spalling over the top face and down the back profile. This is often called the cyclone effect. 0.25× More
Image
Published: 01 January 2002
Fig. 32 Spiral bevel gear and pinion set that sheared in the reverse direction. The pinion came to a sudden and complete stop at the instant of primary failure of the unit, allowing the gear to shear the contacting teeth and to continue rotating over the failed area. 0.4× More
Image
Published: 01 January 2002
Fig. 35 Case crushing at midprofile of a spiral bevel gear tooth. Progression is from the subcase area into the core and outward to the surface. More
Image
Published: 01 January 2002
Fig. 36 Spiral bevel gear teeth showing contact wear. Insert A shows a tooth area exhibiting no wear. Insert B shows abrasive wear clearly cutting away 3.2 mm ( 1 8 in.) of the surface without damage to underlying material. More
Image
Published: 01 January 2002
Fig. 42 Spiral bevel gear tooth. Internal rupture is lifting the entire top of a tooth. More
Image
Published: 01 December 1992
Fig. 1 Carburized AISI 19310 spiral bevel gear with two fractured teeth. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048261
EISBN: 978-1-62708-225-9
... Abstract The gear of a spiral bevel gear set broke into three pieces after about two years of service. The gear (made of 4817 steel) broke along the root of a tooth intersected by three of the six 22-mm diam holes used to mount the gear to a hub. Fatigue progression for about 6.4 mm...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001497
EISBN: 978-1-62708-221-1
... Abstract A spiral bevel gear set in the differential housing of a large front-end loader moving coal in a storage area failed in service. The machine had operated approximately 1500 h. Although the failure involved only the pinion teeth, magnetic particle inspection was performed on each part...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001077
EISBN: 978-1-62708-214-3
... Abstract The failure of a spiral bevel gear from the transmission of a helicopter was discovered when the transmission was removed after an in-flight incident. Two adjacent teeth from the carburized AISI 9310 steel gear were found to have undergone fatigue failure. Internal initiation occurred...
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
..., the set is called a miter gear set. Any change in the number of teeth will change speed as well as direction. Fig. 6 Four types of bevel gears. See text for discussion. Fig. 7 Angles and terminology for straight bevel gears. Spiral Bevel Gears Spiral bevel gears ( Fig. 6b ) have...
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
... Abstract This article first reviews variations within the most common types of gears, namely spur, helical, worm, and straight and spiral bevel. It then provides information on gear tooth contact and gear metallurgy. This is followed by sections describing the important points of gear...
Image
Published: 01 January 2002
Fig. 9 Lines of contact on a stepped spur gear. The heavy line on a tooth face of each gear section represents the instantaneous line of contact for that section. This offset-contact pattern is typical for helical, spiral bevel, and hypoid gears. More
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
...-scanning, and scratch tests. After a discussion on gear scuffing, information on the material-dependent adhesive wear and factors preventing adhesive wear is provided. adhesive wear coefficient of friction galling metal sliding contacts scoring scuffing seizure scratch tests twist compression...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... resulting from rotation of the bearing ultimately leads to the initiation of fatigue cracks, and fragments of metal become detached to produce the effect described as pitting or flaking. This type of failure is similar to that found on the flanks of gear teeth. In addition to load, the pitting or flaking...