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bearing sleeve

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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.c9001846
EISBN: 978-1-62708-241-9
... Abstract The main shaft in a locomotive turbocharger fractured along with an associated bearing sleeve. Visual and fractographic examination revealed that the shaft fractured at a sharp-edged groove between two journals of different cross-sectional area. The dominant failure mechanism was low...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001847
EISBN: 978-1-62708-241-9
... Abstract An investigation was conducted to determine what caused a bearing sleeve in a locomotive turbocharger to fail. The sleeve, which is made of nitrided 38CrMoAl steel, fractured at the transition fillet between the cylinder and plate. Visual examination revealed significant wear on the...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0091897
EISBN: 978-1-62708-236-5
... occurred, requiring the collar, spacer sleeve, seal, roller bearing, and lock washer to be replaced. The shaft was made of 4140 steel, heat treated to a hardness of 20 to 26 HRC. The seal, bearing, and lock washer were commercial components. Investigation (visual inspection, 4.5x images, x-ray diffraction...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... photographs of the primary hardware of interest in the investigation: ( a ) beveled gear, ( b ) sleeve, ( c ) outer race, ( d ) inner race, ( e ) rolling elements, ( f ) generic schematic of assembly All 17 bearing balls were recovered, most exhibiting deformation confined primarily to one...
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
... Abstract Rolling-element bearings use rolling elements interposed between two raceways, and relative motion is permitted by the rotation of these elements. This article presents an overview of bearing materials, bearing-load ratings, and an examination of failed bearings. Rolling-element...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
... the magnitude of the applied tensile stresses. The depth of cracking depends on the depth of copper penetration. Thus, if the elements present in the friction-bearing sleeve are observed in the prior-austenite grain boundaries in failed axles, it can be safely concluded that the axle was intact and...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... fretting wear. fretting wear impact fretting mechanical components normal load residual stress rolling-element bearings slip surface finish vibration frequency FRETTING is a wear phenomenon that occurs between two mating surfaces; initially, it is adhesive in nature, and vibration or...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... fretting wear, with an emphasis on steel, are reviewed in this article. This review is followed by several examples of failures related to fretting wear. Common sites for fretting are in joints that are bolted, keyed, pinned, press fitted, or riveted; in oscillating bearings, splines, and press fits on...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... keyways on shafts) or insufficient radii (e.g., on shafts at bearing journals). Other examples include unanticipated residual stresses associated with heat treating configurations designed with complex geometries, or assembly stresses from configurations that contain unwanted interference. Inappropriate...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
... components Sleeve bearing Seal Coupling Shaft Pinion/ball/turning gear Casing Rotor Impeller Shroud Piston Diaphragm Wheel Blades; foil, root, shroud Labyrinth Thrust bearing Pivoted pad bearing Roller/ball bearing Cross-head piston Cylinder Crankshaft Performing an effective RCA requires an...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0046252
EISBN: 978-1-62708-229-7
... International , 2002 , p 641 – 649 10.31399/asm.hb.v11.a0003540 Visual examination indicated that the bellows unit nearest the turbine contained the most cracking; therefore, only this bellow section was selected for analysis. The bellows were split in half, the reflector sleeve was removed, and the...
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
... optimizing selection of shaft material and heat treatment, consideration should be given to the sliding (sleeve) bearing and seal material and its compatibility with the shaft. Very often, the high-wear area of a shaft may be chromium plated or may be covered with a sleeve that can be discarded and replaced...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... plasticized with trioctyl trimellitate (TOTM). A reference sample of the tubing, which had performed well in service, was also available for testing. A number of plastic sleeves used in an automotive application cracked after assembly but prior to installation into the mating components. The sleeves...
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
... alleviated to some extent by the development of several special sleeve/ fastener combinations. The extreme temperature changes experienced by aircraft can cause differential thermal expansion and contraction of composites and their fasteners, thus altering clamp-up loads. Therefore, all new joint designs...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... very rough and completely unacceptable to the customer. The machine manufacturer suggested that the problem might be due to bearings or gearing within the chamfer head. Test data proved that this was not the case. During the 900 rpm cutting operation, a vibration spectrum was taken on the machine...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001099
EISBN: 978-1-62708-214-3
... continuously for about 1000 h since its original installation, at which time it experienced a bearing failure due to inadequate lubrication. This occurrence was unrelated to the failure under discussion, but required disassembly of the impeller and diffusion vane components. In this compressor, eight cap...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001783
EISBN: 978-1-62708-241-9
... may play into the problem. This case study is no different than the many others that occur on a daily basis. Initially the crimping mechanism system utilized hardened steel round sleeve rollers to guide the indenter. The problem was that after some time the rollers were prone to cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001504
EISBN: 978-1-62708-217-4
... about 40 mm (1.57 in). The crank lever of a similar aircraft was found with a 75 mm (2.95 in) long crack ( Fig. 3 ). This part was also made from 300M steel, heat treated to a UTS in the 1930–2000 MPa (280–290 ksi) range and shot peened. The bearing surfaces were chromium plated and the non-bearing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... low, and/or if some measure of shock loading was involved. When dealing with failures of crankshafts or other shafts, it is generally desirable to ascertain the conditions of the bearings and whether any misalignment existed, either within the machine concerned or between the driving and driven...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1