1-20 of 42 Search Results for

self-lubricating bearings

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.mech.c9001485
EISBN: 978-1-62708-225-9
... of deterioration, Figure 1 depicts the onset of pitting on one track of the outer race of a large spherical roller, self-aligning bearing, and Figure 2 shows a similar race of another bearing of the same type in which flaking led to the complete destruction of both running tracks. Fig. 1 Onset...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
... because the self-lubricating properties of that Cu alloy. Section C gave the primary information to understand failure mode. In fact, as visible in Figure 6 , it was discovered that the bushing had “copied” the shaft profile, creating a “hook” in correspondance to the groove that is machined...
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
... in self-loading (radial binding) of the bearing [ 2 ], as illustrated in the schematic diagram Fig. 16 and caused metal-to-metal contact resulting in adhesive wear or seizing [ 3 ]. Due to relative movement at high speed of the shaft the adhering regions broke, and particles/debris from the shaft were...
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
... other; axial displacement between inner and outer rings while under load Axial smear marks on spherical raceway of self-aligning bearings Angular movements of shaft while bearings are stationary under load Axial smear marks on spherical raceway of self-aligning thrust bearings Radial movement...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001831
EISBN: 978-1-62708-241-9
... on the contact surface between the roller and the outer ring. Actually, such debris would help in increasing the extent of wear in return; in other words, it was a self-circulation process. Then, under the interaction between dry friction and impact from the roller on the outer ring, stresses were generated...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... of self-aligning bearings Angular movements of shaft while bearings are stationary under load Axial smear marks on spherical raceway of self-aligning thrust bearings Radial movement in unloaded bearings; improper mounting; inefficient lubrication; faulty manufacture of parts adjacent to bearing...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006806
EISBN: 978-1-62708-329-4
... bearings. In addition to thick- and thin-walled metallic bearings, polymers (nylon, acetal, phenolics) are used as bearing materials. The polymers have self-lubricating properties; therefore, the coefficient of friction in polymer bearings is much lower compared to that of metallic bearings...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001363
EISBN: 978-1-62708-215-0
... stop of the tunnel was activated. By that time, the rotor had reached speeds beyond the structural limits of the blade retention straps and quickly self-destructed. One blade tore loose and pierced the top of the test section. Because of the imbalance created, the remaining rotor and mast assembly...
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
... related to 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...
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
... Fig. 1 Example of fretting and related visible imprint on the main bearing shell. Adapted from Ref 10 . Reprinted with permission from MAN Energy Solutions Fig. 2 Fatigue crack generated by fretting damage in a rivet hole and fastened assemblies. Bottom two images reprinted from...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
... of cleaner steels and greater precision in the manufacture of bearings, most of the surface and subsurface stress risers listed in Fig. 2 have been addressed. Nevertheless, the demand to operate rolling-element bearings in harsh tribological environments of lubrication, load, contamination, and temperature...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... reinforced polymers unidirectional FRP composites wear performance REINFORCED POLYMERS are used extensively in applications where resistance to adhesive and abrasive wear failure is important for materials selection. Polymers form a special class of materials because of their self-lubricity, which...
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
... by mechanically upsetting one end. Blind Fasteners Blind fasteners are usually multiple-piece devices that can be installed in a joint that is accessible from only one side. When a blind fastener is being installed, a self-contained mechanism, an explosive, or other device forms an upset...
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
... micrograph of typical intergranular fracture shown in the box in (b). Original magnification: 3600× Fig. 13 Cadmium-plated alloy steel self-retaining bolts that fractured because of hydrogen damage. (a) Fractured and unused intact bolt. (b) Fractured bolt; brittle fracture surface is indicated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
.... , A Comparison of the Cavitation Erosion Resistance of TiNi Alloys, SUS304 Stainless Steel and Ni-Based Self-Fluxing Alloy , Wear , Vol 244 , 2000 , p 85 35. Rao B.C.S. and Buckley D.H. , Characterisation of Erosion of Metallic Materials under Cavitation Attack in a Mineral Oil , ASLE...
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
.... A freely rotating bore requires a good lubrication film, or seizing and galling may result. The bore used as a bearing outer race must be as hard as any standard bearing surface and is subject to all conditions of rolling contact, such as fatigue, pitting, spalling, and galling. The bore that is press fit...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... corrosion reactions. When the materials are subjected to wear, the passive film can be damaged, leading to increased corrosion. Although repassivation could repair the film, continued wear can suppress such self-repairing. Wear-caused plastic deformation makes materials more anodic. Wear removes material...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... that crack growth rate in SMIE is controlled by thermally activated surface self diffusion of embrittler atoms over adsorbed layers on the crack faces. Therefore, rate and time to failure are strongly temperature dependent. Occurrence of SMIE and LMIE Metal-induced embrittlement exhibits another...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
... severe than LME because the ratecontrolling process for SMIE, viz. surface self-diffusion of embrittling atoms from their source to the crack tip, is much slower than the rate-controlling step for LME, viz. capillary flow of liquid metal to the crack tip (or possibly adsorption at the crack tip) [ 18...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
... with decreasing stress and a minimum stress for failure (i.e., a threshold). It has been proposed that crack growth rate in SMIE is controlled by thermally activated surface self-diffusion of embrittler atoms over adsorbed layers on the crack faces. Therefore, rate and time to failure are strongly temperature...