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Bearing journals

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Published: 01 December 2004
Fig. 3.11 Variety of parts, including automotive pistons, metallurgically bonded diesel engine pistons, compressor pistons, cylindrical and journal bearings, anodes, and cookware, produced by the low-pressure casting process More
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Published: 30 April 2021
Fig. 5.26 Tests commonly used for adhesive wear studies; (a) reciprocating pin-on-flat, (b) continuous pin-on-disk, (c) block-on-ring, (d) journal bearing, (e) ball-on-disk traction test, (f) galling tests More
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360083
EISBN: 978-1-62708-435-2
... Many reference marks Usually modulated by running speed of bad gear Resonance Dominant frequency … … Drops off sharply with changes in speed Journal bearing (sleeve bearing) loose in housing Subharmonics of shaft rpm, exactly ½ or ⅓ of rpm … … Looseness may only develop at operating...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360127
EISBN: 978-1-62708-435-2
... to bear, necessitating a redesign. The ensuing development project was carried out in two phases. Throughout the first phase, design emphasis was placed on equal load sharing among the planet gears. In the second phase, the design was modified to limit dynamic lift of the ring gear and an in-situ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
... are ever increasing with the rising horsepower ratings of engines used in automobiles, tractors, and other vehicles. The most stringent demands are placed on the journal and bearing surface. Journals are the parts of the rotating shaft that turn within the bearings. Before the advent of induction...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... phenolics have been successfully used for decades for massive journal bearings on steel mill rollers. As another example, certain grades of polyamides (nylons) have been the gold standard for plain bearings (bushings) on small shafts that operate the many mechanical devices on an automobile. They do...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360001
EISBN: 978-1-62708-435-2
.... It presents five types of gear tooth geometry errors. The chapter also focuses on gear quality inspection and on bearing-induced vibrations. bearing-induced vibrations gear tooth geometry errors gearbox design gearboxes gears quality inspection vibration analysis vibration reduction...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.9781627084352
EISBN: 978-1-62708-435-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900219
EISBN: 978-1-62708-350-8
... conditions in respect of the crankshaft journals are such that while good wear resistance is required, a high indentation resistance is not essential. A prime requirement exists for a good fatigue resistance. Following consultation with BOC Ltd., Leyland Vehicles Ltd. decided to initiate a program...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... analyzed the wood bearings and concluded that the Egyptians had a wheel lubricant with a complex additive package. Thus, the concept of applying substances to rubbing surfaces dates back thousands of years and continues today (2021) with the same objective: lowering friction between rubbing surfaces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050001
EISBN: 978-1-62708-311-9
... to melt metals. Induction heat treating came into prominence in the 1930s, when high-frequency motor-generator sets were developed and used for the induction hardening of crankshaft journals and bearings. In 1938, Caterpillar installed a power supply for induction hardening track links, and by 1943...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180029
EISBN: 978-1-62708-256-3
... dense chrome plating on AISI 52100 carbon steel bearings without a 190 °C (375 °F) bake to remove the hydrogen absorbed during the plating process has been used in commercial applications with great success when replacing nonplated AISI 52100 carbon steel bearings. Inexpensive AISI 52100 carbon steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130417
EISBN: 978-1-62708-284-6
..., since, by a well-chosen technology of heating and cooling or quenching, a hardened surface layer and a refined core can be ensured. Thus, the required wear resistance of the machine component at a certain location as well as the required load-bearing capacity of the component can be created...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170457
EISBN: 978-1-62708-297-6
..., thrust washers, cam followers, and similar parts. Leaded tin bronze bearings resist pounding, but should be used against hardened journals (300 to 400 HB min.), and only in applications where reliable lubrication is assured. Aluminum (Cu-Al) Bronzes (C60800 to C64210) Aluminum (Cu-Al) bronzes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300121
EISBN: 978-1-62708-323-2
... versus the motor bearings); some have this plus a commutator/brush tribosystem. However, an internal combustion engine for a vehicle can contain a hundred or more tribosystems, all of which are subject to friction and wear concerns. Therefore, advantages of electric vehicles propelled by one to four...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
... application of this novel press is illustrated in forming bearing sleeves. Conventionally, such sleeves are formed starting with a U-bent preform, using a two-step process ( Fig. 11.25 ). The preform is first formed to a round cross section (U-O-bending) and then coined. During U-O-bending, the sharp edges...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300001
EISBN: 978-1-62708-323-2
... (they made the oil and grease), petroleum engineers (they found the oil), physicists (they modeled the lubricants), and the mechanical engineers who dealt with bearings, gears and mechanism design, and the fluid mechanics of lubrication. The engineering material community consisted of metallurgists...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040076
EISBN: 978-1-62708-428-4
... coatings are used in aerospace, automotive, marine, and heavy industry applications. The coating is sufficiently porous to operate under lubrication and can be impregnated with oil after spraying. Molybdenum based coatings are used on journal and bearing shafts, piston rings, valves, cylinder rods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040319
EISBN: 978-1-62708-300-3
... Schematic representation of the orbital forging process [ Oudot et al., 2001 ] Recently, orbital forming has been used by various bearing and axle manufacturers for the assembly of spindle drives (NSK Bearings, Japan). At the ERC/NSM at Ohio State University, orbital forging simulations using DEFORM...