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Wear And Sliding Friction Properties Of Nickel Alloys Suited For Cages Of High Temperature Rolling Contact Bearings
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Book Synopsis Wear and Sliding Friction Properties of Nickel Alloys Suited for Cages of High-temperature Rolling-contact Bearings by : Robert L. Johnson
Download or read book Wear and Sliding Friction Properties of Nickel Alloys Suited for Cages of High-temperature Rolling-contact Bearings written by Robert L. Johnson and published by . This book was released on 1952 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wear and sliding friction properties of a number of nickel alloys operating against hardened SAE 52100 steel were studied. The alloys were cast beryllium nickel, heat-treated beryllium nickel, cast Inconel, Nimonic 80, Inconel X, Refractalloy 26, and Discaloy. Some of the allows studied may be useful as material for cages of rolling-contact bearings that operate at high speeds with temperatures above 600 degrees F in projected aircraft turbine engines or for bearings that operate in corrosive mediums. Desirable operating properties and the absence of extreme mass welding of all the materials could be associated with the development of the sliding surfaces of a naturally formed film of nickel oxide. On the basis of wear and friction properties, cast Inconel performed very well in these experiments and compares favorably with nodular iron. Nimonic 80 also showed promise as a possible cage material.
Book Synopsis Technical Note - National Advisory Committee for Aeronautics by : United States. National Advisory Committee for Aeronautics
Download or read book Technical Note - National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1955 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wear and Sliding Friction Properties of Nickel Alloys Suited for Gages of High-temperature Rolling-contact Bearings by : Robert L. Johnson
Download or read book Wear and Sliding Friction Properties of Nickel Alloys Suited for Gages of High-temperature Rolling-contact Bearings written by Robert L. Johnson and published by . This book was released on 1952 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wear and sliding friction properties of a number of nickel alloys operating against hardened SAE 52100 steel were studied. These alloys include "L" nickel, wrought monel, cast monel, cast modified "H" monel, cast "S" monel, Invar, Ni-Resist 3, and Nichrome V. Some of the alloys studied may be useful as possible case material for high-temperature, high-speed bearings for aircraft turbines or for bearings to operate in corrosive media. Desirable operating properties of all the materials could be associated with the development on the rider surface of a naturally formed film of nickel oxide. On the basis of wear and friction properties, Ni-Resist 3, modified "H" monel, and Invar were the best materials studied in this investigation although they did not perform as well as nodular iron. "L" nickel performed well with light loads but was not effective at higher loads when the sufrace film broke down.
Book Synopsis Research Abstracts by : United States. National Advisory Committee for Aeronautics
Download or read book Research Abstracts written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1951 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Technical Reports by :
Download or read book Bibliography of Technical Reports written by and published by . This book was released on 1952 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Friction, Wear, and Surface Damage of Metals as Affected by Solid Surface Films by : Edmond E. Bisson
Download or read book Friction, Wear, and Surface Damage of Metals as Affected by Solid Surface Films written by Edmond E. Bisson and published by . This book was released on 1955 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: As predicted by friction theory, experiments showed that friction and surface damage of metals can be reduced by solid surface films. The ability of materials to form surface films that prevent welding was a very important factor in wear studies of dry and boundary lubricated surfaces. Films of graphitic carbon on cast irons, NiO on nickel alloys, and FeO and Fe3O4 on ferrous materials were found to be beneficial. Abrasive films such as Fe2O3 on MoO3 were definitely detrimental. It appears that the importance of oxide films to friction and wear processes has not been fully appreciated.
Book Synopsis Effect of Bronze and Nodular Iron Cage Materials on Cage Slip and Other Performance Characteristics of 75-millimeter-bore Cylindrical-roller Bearings at DN Values of 2,000,000 by : William J. Anderson
Download or read book Effect of Bronze and Nodular Iron Cage Materials on Cage Slip and Other Performance Characteristics of 75-millimeter-bore Cylindrical-roller Bearings at DN Values of 2,000,000 written by William J. Anderson and published by . This book was released on 1953 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation to determine the relative merits of bronze and nodular iron as cage materials for cylindrical-roller bearings was conducted using four identical 75-millimeter-bore outer-race-riding cage-type cylindrical-roller bearings (tow with bronze cages and two with nodular iron cages). The test bearings were operated over a range of DN values (product of bearing bore in mm and shaft speed in rpm) from 300,00 to 2,100,000, oil flows from 2 to 8 pounds per minute, and loads from 7 to 1613 pounds.
Book Synopsis Comparison of Operating Characteristics of Four Experimental and Two Conventional 75-millimeter-bore Cylindrical-roller Bearings at High Speeds by : William J. Anderson
Download or read book Comparison of Operating Characteristics of Four Experimental and Two Conventional 75-millimeter-bore Cylindrical-roller Bearings at High Speeds written by William J. Anderson and published by . This book was released on 1953 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of four experimental and two conventional 75-millimeter-bore (size 215) cylindrical-roller bearings was conducted over a range of DN values (product of bearing bore in mm and shaft speed in rpm) from 300,000 to 2,300,000, radial loads from 7 to 1613 pounds, and oil flows from 2 to 8 pounds per minute with a single-jet circulatory oil feed. The four experimental bearings were equipped with outer-race-riding cages and inner-race-guided rollers. One conventional bearing was equipped with an outer-race-riding cage and outer-race-guided rollers, while the second conventional bearings was equipped with an inner-race-riding cage and inner-race-guided rollers. Each of the six test bearings was equipped with a different design cage made of nodular iron.
Book Synopsis Index of NACA Technical Publications by : United States. National Advisory Committee for Aeronautics
Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1953 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1953 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note written by and published by . This book was released on 1952 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Selected Listing of NASA Scientific and Technical Reports for ... by :
Download or read book A Selected Listing of NASA Scientific and Technical Reports for ... written by and published by . This book was released on 1949 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Bearing Technology by : E. E. Bisson
Download or read book Advanced Bearing Technology written by E. E. Bisson and published by . This book was released on 1964 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report by : United States. National Advisory Committee for Aeronautics
Download or read book Report written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1956 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of the Use of Freon-12 as a Wind-tunnel Testing Medium by : Albert E. Von Doenhoff
Download or read book Studies of the Use of Freon-12 as a Wind-tunnel Testing Medium written by Albert E. Von Doenhoff and published by . This book was released on 1953 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of studies relating to the use of Freon-12 as a substitute medium for air in aerodynamic testing have been made. The use of Freon-12 instead of air makes possible large savings in wind-tunnel drive power. Because of the fact that the ratio of specific heats is approximately 1.13 for Freon-12 as compared with 1.4 for air, some differences exist between data obtained in Freon-12 and air. Methods for predicting aerodynamic characteristics of bodies in air from data obtained in Freon-12, however, have been developed from the concept of similarity of the streamline pattern. These methods, derived from consideration of two-dimensional flows, provide substantial agreement in all cases for which comparative data are available. These data consist of measurements throughout a range of Mach number from approximately 0.4 to 1.2 of pressure distributions and hinge moments on swept and unswept wings having aspect ratios ranging from 4.0 to 9.0, including cases where a substantial part of the wing was stalled.
Book Synopsis NACA-University Conference on Aerodynamics, Construction, and Propulsion by : United States. National Advisory Committee for Aeronautics
Download or read book NACA-University Conference on Aerodynamics, Construction, and Propulsion written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hovering Flight Tests of a Four-engine-transport Vertical Take-off Airplane Model Utilizing a Large Flap and Extensible Vanes for Redirecting the Propeller Slipstream by : Louis P. Tosti
Download or read book Hovering Flight Tests of a Four-engine-transport Vertical Take-off Airplane Model Utilizing a Large Flap and Extensible Vanes for Redirecting the Propeller Slipstream written by Louis P. Tosti and published by . This book was released on 1955 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the take-off, landing, and hovering-flight characteristics of a four-engine-transport, vertical take-off airplane has been conducted with a remotely controlled free-flight model. The model had four propellers distributed along the wing with thrust axes parallel to the fuselage axis. In order to produce direct lift for hovering flight, the propeller slipstream was deflected downward about 70 degrees by a full-span 65-percent-chord flap deflected 90 degrees and eight extensible vanes arranged above the wing in a cascade relation.
