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tractor drive assemblies

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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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0048596
EISBN: 978-1-62708-221-1
... by the tightening of the nuts during assembly (by the farmer) of the bolt and hub to the axle, cyclic tension and release from supporting the weight of the tractor as the wheels turned, and a somewhat random tension in the leading leg of the U-bolt caused by driving the axle and wheels. Superposition...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... resistance can be improved by changing to a material with higher strength and endurance limit, as shown in the following example. Example 2: Fatigue Fracture of Modified 1035 Steel Cap Screws The drive-line assembly shown in Fig. 7(a) failed during vehicle testing. The vehicle had traveled 9022 km...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... raisers and unfavorable shear planes. Source: Ref 7 Example 2: Fatigue Fracture of Modified 1035 Steel Cap Screws The drive-line assembly shown in Fig. 6(a) failed during vehicle testing. The vehicle had traveled 9022 km (5606 miles) before the failure occurred. Both the intact and fractured...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001633
EISBN: 978-1-62708-221-1
... on the crane. Corrosion EDS SEM 65-45-12 Fatigue fracture Introduction A large mobile harbor crane commissioned in the early 1990s operated for more than ten years. Operations included lifting containers off ships and tractor-trailer transportation vehicles. Generally, the crane operates...
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
... misalignment that is either introduced at assembly or caused by deflection of supporting members in service, from mismatch of mating parts, and from careless handling in which the shaft is nicked, gouged, or scratched. To a lesser degree, shafts can fracture from misapplication of material. Such fractures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... involve the interaction of various materials in an assembly or with the environment. An articulated tractor and low-loading trailer was being driven through some hilly country in Missouri after delivery of a bulldozer to a construction site. The driver noticed that his rear trailer brakes had started...
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
... forged shafts are made. Generally, these stress concentrators are internal discontinuities, such as pipe, segregation, porosity, shrinkage, and nonmetallic inclusions. Fractures also result from bearing misalignment that is either introduced at assembly or caused by deflection of supporting members...
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 Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006815
EISBN: 978-1-62708-329-4
... for each candidate. The results of the conceptual design step are multiple schematics of how components or modules may be configured and an overall general arrangement showing bearing locations, sealing components, rotors, case configurations, and other important components and assemblies. During...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... to go through 10,000+ kg (22,000+ lb) of resin, so careful material and rheological characterization with each shipment is recommended to monitor for lot-to-lot variations. Equipment Overview All extruders use common equipment, including the drive motor, hopper, barrel, screw(s), and the die...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
..., many of the common causes of failures of castings occur from one or more aspects of design, materials selection, casting imperfections, faulty processing, improper assembly, or service conditions not initially anticipated. Some casting imperfections have no effect on the function or the service life...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
.... However, many of the common causes of failures of castings occur from one or more aspects of design, materials selection, casting imperfections, faulty processing, improper assembly, or service conditions not initially anticipated. Some casting imperfections have no effect on the function or the service...