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surface contact bearings

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270097
EISBN: 978-1-62708-301-0
..., investigators concluded that excessive clearance allowed the outer bearing races to rotate, thus removing material from adjacent contact surfaces and accelerating the buildup of metal particles in the engine oil. The chapter recommends several design changes to remedy the problem. aircraft bearings oil...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630189
EISBN: 978-1-62708-270-9
... of the wear track formed by the mating roller, which was 5 in. in diameter Fig. 1 (a) Sketch of counterformal, or convex, surfaces in contact; examples are gear teeth and roller or needle bearings rolling on a shaft, in an inner raceway, or on a flat surface. (b) Sketch of conformal surfaces, where...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610461
EISBN: 978-1-62708-303-4
.... Source: Ref 4 Fig. 15 (a) Sketch of counterformal, or convex, surfaces in contact; examples are gear teeth and roller or needle bearings rolling on a shaft, an inner raceway, or a flat surface. (b) Sketch of conformal surfaces, where a convex surface is in contact with a concave surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300013
EISBN: 978-1-62708-323-2
... in a ball bearing experiences pure rolling. There is elastic (or plastic) deformation in a portion of the contact, and deformation means movement or slip occurs. This slip produces the lines of travel that are evident on the raceway of any used ball bearing. Thus, the F d surface deformation component...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2
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
... the rolling element bearing radially. The last illustration, Fig. 5.13(f) , shows the cantilever on scanning probe microscope. Loads (forces) can be in nanonewtons. When a surface is scanned by the contacting tip, the cantilever holding the tip will deflect and this deflection is related to the force...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... decisions. It covers practical issues associated with rolling friction, the use of lubricants, and the tribology of metal, ceramic, and polymer surfaces in contact. It also discusses the nature of rolling friction and provides helpful design guidelines. References References 1. “ Friction...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300301
EISBN: 978-1-62708-323-2
... plastic plain bearings (bushings) Fig. 11.19 Types of composite fabrics used in fabric-lined plain bearings. Some are woven with a synthetic fluorine-containing resin as one member (warp or woof). Fig. 11.20 Formation of Schallamach waves when rubber slides on a smooth surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300227
EISBN: 978-1-62708-323-2
... of friction (μ k ) of various stainless steel couples wear tested in a thrust bearing type of contact. (e.g., Fig. 9.8 ) Fig. 9.8 Schematic of a thrust-washer configuration for friction and wear testing Fig. 9.9 A typical galling test specimen. One revolution of a ½-inch diameter flat...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... Oil film separating two rubbing surfaces. D is the composite roughness of two mating surfaces Fig. 4.28 Oil film separation in (a) a plain bearing at rest, and (b) at sufficient operating speed; P, load Fig. 4.29 Scuffing on the rolling surface of a roller cam Fig. 4.30...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... in <xref ref-type="bibr" rid="t51250257-ref1">Ref 1</xref> Table 2 Gear failure modes proposed by Alban in Ref 1 Failure mode Type of failure Fatigue Tooth bending, surface contact (pitting or spalling), rolling contact, thermal fatigue Impact Tooth bending, tooth shear, tooth chipping, case crushing, torsional shear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780259
EISBN: 978-1-62708-281-5
... it ( Ref 4 ). In applications such as bearings and gears, low friction is desirable, whereas high friction is required in materials used in brakes, clutches, and road surfaces. In each case, constant, reproducible, and predictable friction behavior is essential. Wear, along with corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... extrusions. One is a simulated billet where the extrusion speed was predicted by the modified model ( Ref 14 ); the other is an actual billet where the temperature was measured by a digital contact thermometer on the exit surface of the extrusion as soon as it left the die bearing. Results show...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260001
EISBN: 978-1-62708-336-2
... A A + m 2 k A R2 A A where A A is the apparent area of contact for the entire bearing surface, and m 1 has been set equal to unity to reflect sticking friction. In the case of complete adhesion (sticking friction) on the die bearing, m 2 = 1; accordingly...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... on a conveyor roller Fig. 14.12 Damage from rubbing contact on an air bearing hemisphere Fig. 14.13 Free-spinning stone model of planet Earth supported by a hydrostatic (water) bearing Fig. 14.8 Breakaway coefficient of friction in an inclined plane test (ASTM International G214...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
... on failures caused by erosion is available in the article “Liquid Impact Erosion” in Failure Analysis and Prevention , Volume 11 of ASM Handbook . Fretting Corrosion Fretting corrosion is a combined wear and corrosion process in which material is removed from contacting surfaces when motion between...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300421
EISBN: 978-1-62708-323-2
... not intuitive what happens to system friction when there are changes in, for example, speed, load, and surface texture. Tests with accurate simulation should provide the answers to the effects of system changes. For example, in a turbocharger application where a steel-against-steel couple operates...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250293
EISBN: 978-1-62708-345-4
...-tooth geometric accuracy, and both must be under good control by those designing, making, or inspecting gears. Gear Tooth Contact The way in which tooth surfaces of properly aligned gears make contact with each other is responsible for the heavy loads that gears are able to carry. In theory, gear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770051
EISBN: 978-1-62708-337-9
... Absorbed energy, kg · mm/mm 2 Impact toughness kg · m/cm 2 Residual stress at Surface k g/mm 2 Fatigue life, 10 3 cycles 160 Few carbides 148.5 8.50 1.3 –25.6 ... Large quantity network 144.5 8.81 0.9 +4.4 ... Large quantity spheroidal 155.7 9.62 1.3 –8.9 ... 190 Few...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... at an angle and then slide across the surface. Source: Ref 1 Fig. 2 Scanning electron microscope image of an area of abrasive wear on a soft, low-carbon-steel shaft bearing component, showing classic features of material “cutting” action (100×). Fig. 10 Scanning electron microscope image...