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Turbulence in a tilting-pad thrust bearing
LITERATURE AND CURRENT EVENTS
522
Swayne. Plastics Technology, \-. L, Apr. 1956, p. .?*I-zrj, 23n. Properties of these resins that make them advantageous for bearing applications. Graphs, tables. (To be continued.) Zytel and Teflon Resins as Bearing Materials. II. PlasticsTrrhnologj,, 1’. 2, iVay 19.56, p, 3~4.319, 323. Basic properties of Zytel nylon: testing program on lubricated ZyteI bearings. Graphs, diagram, photograph, iables. 14 ref. Etfect of Combustion-Resistant Hydraulic Fluids on Ball-Bearing Fatigue Life. H. V. t‘ordiano, E. I’. Co&ran, Jr., and R. J. W’olfe. .4SME, TrawactioPzs, V. 7X, July 1956, p. $39-993; disc., 17.994-996. Phosphate ester, phosphate ester-base, and water-glycol-base combustion-resistant fluids and a petroleum oil were investigated to determine relative effects when used as flood lubricants, on the life of angular-contact ball bearings. Solid-Film Lubricants. Ralph E. t‘rump. Product En@wering, v. 27, Feb. 19.56, p. zoo-205. New lubricants offer high load-carryingcapacIty of boundary lubricants, frictional propperties of light oil and are relatively independent of temperature from -100 to 1000 OF; rincipal limitations are lack of heat dissipationcapacityand flushingaction. Diagrams, graphs, photographs, table. 7 ref. Solid Lubricant for Parts Working Under Conditions of Dry Friction. (in Russian) I’. E. D’iachenko, 0. E. Kestner, and L. A. C‘hatpnian. Izvesliin akademii lzauk SSSR, otdelenir fekhnicheskikh. nauk, rg.55, no. 12, L)ec., p. Lt8- 130. Coefficients of friction in relation to various coatings and films on chrome bronze. Comparison of MoS, with other solid lubricants. Graph, photographs. diagram. r ref. Pure Molybdenum Disulphide. Its Properties and Uses in the Sheet Metal Industry. Ii. Peter Jost. Sheet Metal Industries, V. 33, no. 354, Oct. t956, p. 679-690, 697. Occurrence and manufacture; structure and properties; particle size: bonding and impregnation; bearing areas; use in plastics, sintered metals, and rubber; practical applications. 1.3. Pro(rssl~g
Lwbrica,zts
Silicones in Metalworking. Sleei, v. 138, I&r. j, r956, p. I,ists 151 uses f(lr s‘ilicones in tion, and maintenance, and of the more important ones.
92-96. design, producdiscusses a few Photographs.
VOL. f
~1957/58)
How to Sefect Machine Tool Lubricants. C. H. Gillette. Iuon .4ge, v. ~77, Mar. 22, 1956, p. 75-78. Plan for reducing and simplifying lube requirements in the plant. Table, graphs, photograph.
Turbulence in a Tilting-Pad Thrust Bearing. Stanley Xbramovitz. il.SME, Transactions, v. 78, Jan. 1956, p. 7-t t. I:sing water as a lubricant, experiments were made with snch a bearing, and it was found that the friction torqne increased abnormally when the rubbing speed exceeded what appeared to be a critical value. Photographs, diagrams, tabie, graph. .+ ref. Behavior of Air in the Hydrostatic Lubrication of Loaded Spherical Bearings. T. L. Corey, C. M. Tyler, Jr., H. H. Rowand, Jr., and E. M. Kipp. .4S,WZIE,Transactions, x-. 78. July 1956, p. 893-898. Data relating the load-bearing capacity of air films of various thicknesses and operating at different pressures and rates of flow for 2, 4, and Gin. spherical-type bearings. Experimental Apparatus and Methods for the Development of Oscillatory Plain Bearings and Lubricants for Airframe Applications in the Temperature Range of -90 to 1500’ F. W. A. Glaeser, C. M. Allen, and S. L. Fawcett.
Butt& Memorial Institute, Special Repovt fov Wvight .4iv Development Center Contract No. AF 33(600)-31922, Mar. 1956, ro pp. (TJro61 B3re) A pendulum screening apparatus, a bearingevaluation machine, and a hot-clearance measurement apparatus are proposed for the experiments. LXagrams. Some Dynamic
Properties of 0%Film Journal Bearings With Reference to the Wnbalance Vibration of Rotors. A. C. Hagg and G. 0. Sankey. Journal of
.4pplied Mechanirs, s. 23, June 1956, pi 302306. Oil films have an important role in the unbalance-vibration behavior of rotor systems, particularly the vibration magnification at resonance. Ijiagrams, graphs. IO ref. Investigations Into the Accuracy of BallBearing Components. h. Kohaut. Engineers’ Digest, V. t 7, Jan. 19.56, p, 9-t t. (From Wevkstattstechnik u+td Ma.xlzinrnhaw, v. 4.5, no. $0, Oct. 1955, p. gro5’3.) ;\n interference microscope was used for accurate surface investigation of balls. Lfefects due to shape, assembly, and corrosion are discussed. Photographs, micrographs.
522
Swayne. Plastics Technology, \-. L, Apr. 1956, p. .?*I-zrj, 23n. Properties of these resins that make them advantageous for bearing applications. Graphs, tables. (To be continued.) Zytel and Teflon Resins as Bearing Materials. II. PlasticsTrrhnologj,, 1’. 2, iVay 19.56, p, 3~4.319, 323. Basic properties of Zytel nylon: testing program on lubricated ZyteI bearings. Graphs, diagram, photograph, iables. 14 ref. Etfect of Combustion-Resistant Hydraulic Fluids on Ball-Bearing Fatigue Life. H. V. t‘ordiano, E. I’. Co&ran, Jr., and R. J. W’olfe. .4SME, TrawactioPzs, V. 7X, July 1956, p. $39-993; disc., 17.994-996. Phosphate ester, phosphate ester-base, and water-glycol-base combustion-resistant fluids and a petroleum oil were investigated to determine relative effects when used as flood lubricants, on the life of angular-contact ball bearings. Solid-Film Lubricants. Ralph E. t‘rump. Product En@wering, v. 27, Feb. 19.56, p. zoo-205. New lubricants offer high load-carryingcapacIty of boundary lubricants, frictional propperties of light oil and are relatively independent of temperature from -100 to 1000 OF; rincipal limitations are lack of heat dissipationcapacityand flushingaction. Diagrams, graphs, photographs, table. 7 ref. Solid Lubricant for Parts Working Under Conditions of Dry Friction. (in Russian) I’. E. D’iachenko, 0. E. Kestner, and L. A. C‘hatpnian. Izvesliin akademii lzauk SSSR, otdelenir fekhnicheskikh. nauk, rg.55, no. 12, L)ec., p. Lt8- 130. Coefficients of friction in relation to various coatings and films on chrome bronze. Comparison of MoS, with other solid lubricants. Graph, photographs. diagram. r ref. Pure Molybdenum Disulphide. Its Properties and Uses in the Sheet Metal Industry. Ii. Peter Jost. Sheet Metal Industries, V. 33, no. 354, Oct. t956, p. 679-690, 697. Occurrence and manufacture; structure and properties; particle size: bonding and impregnation; bearing areas; use in plastics, sintered metals, and rubber; practical applications. 1.3. Pro(rssl~g
Lwbrica,zts
Silicones in Metalworking. Sleei, v. 138, I&r. j, r956, p. I,ists 151 uses f(lr s‘ilicones in tion, and maintenance, and of the more important ones.
92-96. design, producdiscusses a few Photographs.
VOL. f
~1957/58)
How to Sefect Machine Tool Lubricants. C. H. Gillette. Iuon .4ge, v. ~77, Mar. 22, 1956, p. 75-78. Plan for reducing and simplifying lube requirements in the plant. Table, graphs, photograph.
Turbulence in a Tilting-Pad Thrust Bearing. Stanley Xbramovitz. il.SME, Transactions, v. 78, Jan. 1956, p. 7-t t. I:sing water as a lubricant, experiments were made with snch a bearing, and it was found that the friction torqne increased abnormally when the rubbing speed exceeded what appeared to be a critical value. Photographs, diagrams, tabie, graph. .+ ref. Behavior of Air in the Hydrostatic Lubrication of Loaded Spherical Bearings. T. L. Corey, C. M. Tyler, Jr., H. H. Rowand, Jr., and E. M. Kipp. .4S,WZIE,Transactions, x-. 78. July 1956, p. 893-898. Data relating the load-bearing capacity of air films of various thicknesses and operating at different pressures and rates of flow for 2, 4, and Gin. spherical-type bearings. Experimental Apparatus and Methods for the Development of Oscillatory Plain Bearings and Lubricants for Airframe Applications in the Temperature Range of -90 to 1500’ F. W. A. Glaeser, C. M. Allen, and S. L. Fawcett.
Butt& Memorial Institute, Special Repovt fov Wvight .4iv Development Center Contract No. AF 33(600)-31922, Mar. 1956, ro pp. (TJro61 B3re) A pendulum screening apparatus, a bearingevaluation machine, and a hot-clearance measurement apparatus are proposed for the experiments. LXagrams. Some Dynamic
Properties of 0%Film Journal Bearings With Reference to the Wnbalance Vibration of Rotors. A. C. Hagg and G. 0. Sankey. Journal of
.4pplied Mechanirs, s. 23, June 1956, pi 302306. Oil films have an important role in the unbalance-vibration behavior of rotor systems, particularly the vibration magnification at resonance. Ijiagrams, graphs. IO ref. Investigations Into the Accuracy of BallBearing Components. h. Kohaut. Engineers’ Digest, V. t 7, Jan. 19.56, p, 9-t t. (From Wevkstattstechnik u+td Ma.xlzinrnhaw, v. 4.5, no. $0, Oct. 1955, p. gro5’3.) ;\n interference microscope was used for accurate surface investigation of balls. Lfefects due to shape, assembly, and corrosion are discussed. Photographs, micrographs.