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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001790
EISBN: 978-1-62708-241-9
... Abstract The failure of a high-speed pinion shaft from a marine diesel engine was investigated. The shaft, which had been in service for more than 30 years, failed shortly after the bearings were replaced. Examination of the shaft revealed cyclic fatigue, with a substantial distribution...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001799
EISBN: 978-1-62708-241-9
... Abstract A high-speed pinion gear shaft, part of a system that compresses natural gas, was analyzed to determine why it failed. An abnormal wear pattern was observed on the shaft surface beneath the inner race of the support bearings. Material from the shaft had transferred to the bearing races...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001498
EISBN: 978-1-62708-218-1
... Abstract One end of an axle shaft containing the integral spur pinion was submitted for examination, along with the report of a tooth pitting failure. The spur pinion, integral to the axle shaft, operated in a medium-size, off-highway truck at an open-pit mine, for “a relatively short time...
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Published: 01 January 2002
Fig. 40 Example of pinion shaft distortion due to furnace loading More
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Published: 01 January 2002
Fig. 15 Fatigue-fracture surface and keyway of a broken 1030 steel pinion shaft. More
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Published: 01 June 2019
Fig. 1 Fatigue-fracture surface and keyway of a broken 1030 steel pinion shaft. More
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Published: 01 December 2019
Fig. 1 High-speed pinion shaft assembly in the as-received condition More
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Published: 01 December 2019
Fig. 12 Stitched micrograph of pinion shaft at section showing an axial crack More
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Published: 01 December 2019
Fig. 13 Etched micrograph of pinion shaft showing ( a ) a diametrical crack and ( b ) boxed region in ( a ) at high magnification More
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Published: 01 January 2002
Fig. 39 Distortion of JIS SCM 440 (0.4% C, 1.05% Cr, 0.22% Mo) steel pinion shafts after oil quenching from 850 °C (1560 °F) while vertically suspended and tempering at 600 °C (1110 °F) More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048073
EISBN: 978-1-62708-224-2
... Abstract A drum pinion shaft (1030 steel) which was part of the hoisting gear of a crane (capacity 18,140-kg) operating in a blooming mill failed while lifting a 9070 kg load. Chatter marks, rough-machining marks, and sharp corner radii were revealed in the keyway which extended into a shoulder...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001254
EISBN: 978-1-62708-225-9
... Abstract The specified elongation of 10% could not be achieved in several hollow pinion gear shafts made of cast Cr-Mo steel GS 35 Cr-Mo 5 3 that were heat treated to a strength of 90 kp/sq mm. The steel was melted in a basic 3 ton arc furnace and deoxidized in the furnace and in the pan...
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Published: 01 December 2019
Fig. 2 Technical drawing of the reverse shaft, on which a pinion gear and jawed coupling are secured with multiple splines. The shaft has an outer diameter of 15 mm and root diameter of 12 mm at spline tooth More
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Published: 30 August 2021
Fig. 36 Fatigue-fracture surface and keyway of a broken grade 1030 steel pinion shaft More
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.design.c9001551
EISBN: 978-1-62708-233-4
... Abstract A multi-million dollar, four-color printing press used to produce a major weekly magazine was breaking pinions (shouldered shafts) on rolls. The cause of fracture was cyclic fatigue. Steel quality and heat treatment met expected standards. The pinion fracture showed multiple origins...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... for backward movement of the ATV. The shaft assembly consists of a pinion gear and a multijawed coupling that are secured to the shaft with multispline teeth, rather than a single key. This assembly provides the capability for power transmission. With a straight-sided profile, the root of the spline tooth also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0009190
EISBN: 978-1-62708-225-9
... Abstract In an industrial application, 24 speed-increaser gearboxes were used to transmit 258 kW (346 hp) and increase speed from 55 to 375 rev/min. The gears were parallel shaft, single helical, carburized, and ground. The splash lubrication system used a mineral oil without antiscuff...
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
... 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 running in opposite directions, the axial thrust loads should balance each other...
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 Bevel gears transmit rotary motion between nonparallel shafts that are usually at 90° to each other. Straight Bevel Gears Straight bevel gears ( Fig. 6a ) have straight teeth that, if extended inward, would intersect at the intersection of gear and pinion axes. Thus, the action between...