Last edited by Kazilar
Tuesday, November 24, 2020 | History

3 edition of Effect of two synthetic lubricants on life of AISI 9310 spur gears found in the catalog.

Effect of two synthetic lubricants on life of AISI 9310 spur gears

Effect of two synthetic lubricants on life of AISI 9310 spur gears

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  • 29 Currently reading

Published by National Aeronautics and Space Administration, US Army Aviation Systems Command, For sale by the National Technical information Service in [Washington, DC], [St. Louis, Mo.], [Springfield, Va .
Written in English

    Subjects:
  • Gearing, Spur.,
  • Synthetic lubricants.

  • Edition Notes

    StatementDennis P. Townsend and John Shimski.
    SeriesNASA technical memorandum -- 104352., AVSCOM technical report -- 91-C-011., AVSCOM technical report -- 91-C-11.
    ContributionsShimski, John T., United States. Army Aviation Systems Command., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15359088M

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Effect of two synthetic lubricants on life of AISI 9310 spur gears Download PDF EPUB FB2

Spur-gear fatigue tests were conducted with two lubricants using a single lot of consumable-electrode vacuum-melted (CVM) AISI spur gears. The gears were case carburized and hardened to Rockwell C The gear pitch diameter was cm.

The lot of gears was divided into two groups, each of which was tested with a different : Dennis P. Townsend and John Shimski. Scibbe et al. implemented gear tests trying to reveal the effects of lubricant with extreme-pressure (EP) additives on surface fatigue life of spur gears made of AISI The fatigue life of gears with EP lubricants presented 10–50% enhancement compared to gears Cited by: 7.

The purpose of the present investigation was to compare the surface fatigue lives of coated and uncoated gears using accelerated life tests. The test gears used were manufactured in one lot from a single heat of consumable-electrode, vacuum-melted (CVM) AISI steel.

The gears were case-carburized and ground to aerospace quality. The surface pitting fatigue life of the pitch AISI noninvolute gear was approximately equal to the surface pitting fatigue life of an 8-pitch, tooth AISI gear at the same load, but at a considerably higher maximum Hertz stress.

46 Worm Gears - Higher Energy Efficiency and. Spur-gear fatigue tests were conducted with two lubricants using a single lot of consumable-electrode vacuum-melted (CVM) AISI spur gears. The gears were case carburized and hardened to.

Lubrication and cooling for high speed gears [microform] / Dennis P. Townsend National Aeronautics and Space Administration ; For sale by the National Technical Information Service [Washington, D.C.]: [Springfield, Va Australian/Harvard Citation. Townsend, Dennis P. & United States. National Aeronautics and Space Administration.

This paper presents the effects of minimum quantity lubrication (MQL) by vegetable oil-based cutting fluid on the turning performance of low alloy steel AISI as compared to completely dry and wet machining in terms of chip–tool interface temperature, chip formation mode, tool wear and surface roughness.

The results indicate: (1) synthetic polybutene HYVIS gives the longest rolling-contact fatigue life to AISI steel balls among all the mineral and synthetic oils studied in the present. Effect of two synthetic lubricants on life of AISI 9310 spur gears book tests were conducted at three different loads with three groups of cm, pitch diameter spur gears made of vacuum arc remelted AISI steel.

Life was found to vary inversely with load to. Surface pitting fatigue life tests were conducted with seven lubricants, using AISI spur gears. The test lubricants can be classified as synthetic polyol-esters with various viscosities and. The effect of different oil viscosities is not considered yet in DIN [1].

Figure Influence of ratio on overall efficiency of worm gears (driving worm, flank form ZI, lubrication with mineral oil) according to [13] Altogether, a good correspondence between the calculated values and the experimentally gained overall gearbox efficiencies.

Rolling contact fatigue (RCF) tests were conducted on AISI E steel balls lubricated with Cu nanofluids prepared using SAE 5 W synthetic oils as base fluids. Functionalized Cu nanoparticles were blended to % by weight concentration in the base fluids obtained from two. SAE-AISI steel is an alloy steel formulated for primary forming into wrought products.

is the designation in both the SAE and AISI systems for this material. is the EN numeric designation. And G is the UNS number. It has the highest base cost among SAE-AISI wrought steels. Effects of lubrication on the performance of high speed spur gears An experimental analysis was conducted to determine power loss and gear noise of high speed spur gears with long addendum under various conditions of load, speed, and oil jet pressure for into mesh lubrication.

Power losses were calculated from temperature measurements of lubricating oil, gears, gear box, and oil flow rate. (1) MTF (Manual Transmission Fluid) As a manual automotive transmission employs spur gears associated with relatively mild operating conditions (Helical Gear* is used in real applications) and operates with relatively minor intensity at high speed/low loading, API GL-3 or 4 as specified in the API Gear Oil classification is typically used.

However, the Super Nitralloy gears with tip relief had lives equal to the AISI M gears without tip relief. The difference in lives were not statistically significant. All gears failed by classical pitting fatigue at the pitch circle.

However, the AISI M gears with tip relief failed by tooth fracture. Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI Spur Gears (January/February ) Gear surface fatigue endurance tests were conducted on two groups of 10 gear s each of carburized and hardened AlSI spur gear s manufactured from the same heat of material.

Note: There are some older design engines of the two-stroke (trunk-piston) type with rpm of above 4. TYPES OF LUBRICANT FOR LARGE DIESEL ENGINES AND THEIR REQUIREMENTS Different physical properties and performance levels are required for different lubricants depending on the applications.

A discussion on oil degradation is, therefore. Alloy Steel (also known as AISI steel) is a low alloy steel composed primarily of nickel and chromium.

It shows high hardenability, high core hardness and high fatigue strength. also possesses solid ductility, weldability, and machinability properties, and is an excellent metal for use in heavy-duty machinery, case hardened components, and gears.

Stress-life relationship, 38, 91 Sulfide inclusions, 75 Surface roughness, Structural effects, 97 Testers (test rigs), fatigue AOL (Admiralty Oil Laboratory), Ball-rod, Caterpillar rolling contact fatigue (RCF), Cylinder-to-ball, Cylinder-to-cylinder, Five-ball, 6, “Synthetic Gear Oil Selection,”) showed synthetic lubricants make gears more efficient than mineral oils.

A polyglycol showed the highest efficiency: 18% more than the high performing mineral oil. SHC gear oil also made the best gears % more efficient.

The performance of synthetic lubricants in food grade applications in. 58 Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI Spur Gears (January/February ) Gear surface fatigue endurance tests were conducted on two groups of 10 gears each of carburized and hardened AlSI spur gears manufactured from the same heat of material.

59 Big Gears Better and Faster (January/February. based lubricants. Synthetic lubricants are recommended for severe duty applications and in cold climates. It is important to use the lubricants that meet the current specifi cations set forth by Dana.

Look for the appropriate approval code on the container. Drive Axle - Dana Specifi cation: SHAES Rev C Drive Axle - Dana Specifi cation. AISI alloy steel can be readily formed by conventional procedures as this steel has good ductility even in the tempered and quenched condition.

Machinability. AISI alloy steel can be machined by conventional methods and good results are obtained when this alloy steel is machined in the tempered or annealed condition. Heat Treatment. SYNTHETIC LUBRICANTS (TABLES 5A & 5B) — Synthetic lubricants of the polyalphaolefin (PAO) type are recommended for cold climate operation, high temperature applications, extended temperature range (all season) operation and/or extended lubricant change intervals.

The proper viscosity grade of synthetic lubricant is given in Table 3. This new book provides a comprehensive overview of various lubrication aspects of a typical powertrain system including the engine, transmission, driveline, chassis, and other components.

The manual addresses major issues and current development status of automotive lubricant test methods. Topics. AISI 1xxx: AISI 2xxx: AISI 3xxx: AISI 4xxx: AISI 5xxx: AISI 6xxx: AISI 8xxx: AISI 9xxx * For other AISI or Non-AISI, please use the search function above or check Grades. ASTM Steels: Specific Alloy Steel: General Information: Resources: Bibliography.

Major news, innovation and real-life applications for pumps and ancillary equipment. DesignPart How OEM's can make their parts better, faster, and more efficient. The demands placed upon power train lubricants have become increasingly severe with advances in automotive equipment design.

Higher operating temperatures, speeds and gear/bearing loads are stressing the capabilities of current mineral oil powertrain lubricants. Gear lubricants based on synthetic fl. AISI alloy steel is a low carbon nickel-chromium-molybdenum case-hardening steel, with good strength and toughness properties.

It shows high hardenability. Hydraulics lubricants Lubricants for reducing gears n Specifications: DIN Part 3 = CLP group NF-ISO category CKD Latest generation synthetic based oil developed imposes a requiring specification book to which Total products answer completely.

Synthetic lubricants (synlubes)—formulated products consisting of synthetic base stocks plus additives—have physical and chemical properties that are generally superior to those of conventional mineral oil–based lubricants. Bearings, hydraulic fluids, gears, and greases Two-cycle engine oils Compressor oils Gear and.

AISI ,H,94B15,94B15H Steel plate,Supplier. AISIAISI H Steel plate, AISI 94B15,AISI 94B15H Supplier. Unitedsteel Carbon Plate Factory are specialized in producing and exporting ,H,94B15,94B15H.

AISI-SAE Standard Carbon Steel plates, low alloy and high strength steel plate,heavy plate and wide,heavy plate,which is a large steel plate supplier mill at United. The surface pitting fatigue life of the pitch AISI noninvolute gear was approximately equal to the surface pitting fatigue life of an 8-pitch, tooth AISI gear at the same load, but at a considerably higher maximum Hertz stress.

In this study, thermal properties of AISI low-alloyed steel were analysed. The ring gearbox made of AISI was divided into eight sections.

Two diametrically opposing sections were selected and marked as C1 and C2, to compare the ring thermal properties in various spaces. Fig. 1 presents schematic description of the above process.

Synthesized passenger car engine oils have shown a wide range of performance benefits in automotive gasoline engines. These oils also satisfy the additional demands of small diesel engines used in passenger cars and light-duty vehicles.

This includes the severe requirements of turbocharged passenger. aisi Origin: Remark: 0 Click: Technical specification of SAE /AISI /UNS system standard alloy structural steel AISI data sheet, SAE Chemical compositions,UNS G Mechanical properties from Steelmaking, ESR melted, Blooming, Hot forging,Hot rolling,Heat treatment, Straightening, % Ultrasonic test.

• The camshaft and gear train. In this area, the oil is stressed by extreme pressures, either in gears or between rollers and cams. Here, Anti-Wear and Extreme Pressure properties are needed. • The fuel injection system to serve as a fuel/lubricant barrier.

The key property required here is the Fuel / Lubricating Oil Compatibility. The surface pitting fatigue life of the pitch AISI noninvolute gear was approximately equal to the surface pitting fatigue life of an 8-pitch, tooth AISI gear at the same load, but at a considerably higher maximum Hertz stress.

PM Design Winners Announced at Powdermet (June/July ). This edition of AISI S is dedicated to Roger L. Brockenbrough, P.E., who served as chairman of the AISI Committee on Specifications from to Roger led the development of the first unified ASD and LRFD steel design specification, as well as the first.

DESCRIBED here are the detailed characteristics of two series of synthetic lubricants, one essentially insoluble and the other soluble in water at room lubricants are synthesized from natural or other hydrocarbon gases as raw s of laboratory and field tests indicate.The designation API GL-5 denotes lubricants intended for gears, particularly hypoid gears, in axles operating under various combinations of high-speed/shock load and low-speed/high-torque conditions.

The performance specifications for API GL-5 are defined in the most recent version of ASTM D Frictional requirements for.Lubricants for gear systems are used in diverse types of gear designs, ranging from simple parallel spur gears to bevel gears (straight or helical), worm gears and hypoid gears.

Industrial gear systems, which blends, based on mineral oils, synthetic oils (e.g. poly α-olefins, esters, poly-glycols), to vegetable oils.