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gcr15 ball bearing viscosity experiment

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  • Experiment 6: Viscosity (Stoke’s Law) - GitHub Pages

    2016-1-24 · Experiment 6: Viscosity (Stoke’s Law) Objective Calculate the viscosity of glycerin. Apparatus Graduated glass cylinder (50cm long) Steel ball-bearings Conical Flask Stopwatch Micrometer Digital Balance Magnet attached to a string Procedure The viscosity of a liquid can be measured using a viscometer. A viscometer consists of a graduated ...

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  • TAP 209- 2: Ball bearings falling through a viscous medium

    ISSN 1 CN41 0-01014-83/7T6H2 B轴ea承rin g 22 0 0 1 1 5 5 年2 期 ,No .2 39 -42,52 GCr15 轴承钢滑动摩擦性能试验 苏冰,张硕,杨伯原 (河南科技大学 机电工程学院,河南 洛阳 471003) 摘要:利用往复式摩擦磨损试验机对 GCr15 钢盘 /GCr15 钢球和 GCr15 钢盘 /Si3 N4 陶瓷球进行了不同工况下的 滑动摩擦试验 ...

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  • Core practical 4: Use a falling-ball method to determine ...

    2012-12-11 · Viscosity Experiment 3 METHOD. 3 Method. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. Time of displacement through a measured distance of 23.4cm was determined using a video captured at 240 frames per second.

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  • Tribological Performance Studies of Waterborne ...

    2021-3-26 · The tribological experiment results show that after adding ... In the test, a GCr15 bearing steel ball (diameter: 6 mm) was used as the friction counterpair, the friction load was 3 N, the running speed was 220 t/min, the reciprocating distance was 5 mm, and the friction time was 30 min. ... viscosity and solid content of the emulsion samples ...

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  • Volume 140 Issue 5 | J. Tribol. | ASME Digital Collection

    The Varying Compliance Resonance in a Ball Bearing Rotor System Affected by Different Ball Numbers and Rotor Eccentricities ... Experimental Study on Tribological Properties of Graphite-MoS 2 Coating on GCr15. F. M. Meng, Z. T. Cui ... , Shear stress , Spin (Aerodynamics) , Spinning (Textile) , Viscosity , Temperature . Friction and Wear System ...

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  • Tribological Performance of Silahydrocarbons Used as

    All tribological performance tests were performed under the load of 392 N with a rotating speed of 1450 rpm at 25°C for 30 min. The steel balls (diameter 12.7 mm, hardness HRC 59 to 61) were made of GCr15 bearing steel (SAE 52100).

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  • Surface & Coatings Technology - nuaa.edu.cn

    2018-6-15 · terface material was bearing steel ball (GCr15) with an average hard-ness of HRC 60 and a diameter of 3mm. The friction unit was rotated at a speed of 300rpm for 30min. The COF of the AlN/AlSi10Mg speci-mens was recorded during the wear tests and, the wear volume (V)of the tested specimens was calculated dependent on V=M loss/ρ, where M

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  • Bao Yu Song | Scientific.Net

    The working life of deep groove ball bearings lubricated by MoS 2 solid lubricant was tested in 5×10-4 Pa vacuum. The surface observation and analysis for the damage condition of the failed bearings were also conducted. ... Friction coefficients of component pairs of material GCr15-GCr15 were tested in different environments on the tester. The ...

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  • Preparation of tungsten disulfide motor oil and its ...

    2008-6-12 · four-ball machine, and the worn spots and friction coefficient were tested under 392 N, 1 450 r/min and 30 min. The kinematic viscosities of the three kinds of motor oil were measured at 40 ℃and 100 ℃ by GB265 kinematic viscosity tester, and then their viscosity …

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  • How To Find The Density Of A Steel Ball Bearing

    2020-4-10 · A Steel Ball Bearing Has A Radius Of 585 Mm And A . A steel ball bearing has a radius of 5.85 mm and a density of 7.75 g/cm 3.If the ball bearing contains 0.25% carbon (by mass) and that the percent natural abundance of 13 c is 1.108%, how many 13 c atoms are present in the ball bearing?. Chat Online + Gcr15 Steel Bearing 11 Mm Balls High ...

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  • Performance Deterioration Analysis of the Used Gear Oil

    2016-2-19 · In the present paper, we have investigated the tribological properties and microstructure of the used gear oil theoretically and experimentally. The deterioration process of the in-service gear lubricant oils was also discussed. The viscosity and microstructure of oils running different mileages were analyzed by viscometer and Fourier Transform Infrared Spectroscopy (FTIR), respectively.

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  • Laboratory Three Roller Mill - hospitalisationdedemain.fr

    2015-12-3 · 2.1.2 物相分析 图2给出了PTFE以及不同质量分数莫来石填充的PTFE复合材料的XRD谱。可以看出, 纯PTFE样品在17.9°、31.4°和36.5°存在3个主要的衍射峰, 通过与标准卡片进行对照, 证实为纯PTFE的特征衍射峰。填充莫来石以后, 在复合材料的XRD谱中的16.4°、25.9°和26.2°等处发现了莫来石的特征衍射峰, 与标准 ...

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  • Tribological Performance Studies of Waterborne ...

    2021-3-26 · The tribological experiment results show that after adding ... In the test, a GCr15 bearing steel ball (diameter: 6 mm) was used as the friction counterpair, the friction load was 3 N, the running speed was 220 t/min, the reciprocating distance was 5 mm, and the friction time was 30 min. ... viscosity and solid content of the emulsion samples ...

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  • Bifunctional hairy silica nanoparticles as high ...

    2016-3-3 · The viscosity of the BHSN-PAO lubricant ... was tested using a four-ball tribometer. GCr15 steel bearing balls with a diameter of 12.7 mm were ultrasonically cleaned with ethanol prior to the test ...

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  • Bifunctional hairy silica nanoparticles as high ...

    2016-3-3 · GCr15 steel bearing balls with a diameter of 12.7 mm were ultrasonically cleaned with ethanol prior to the test. All of the tests were performed at room temperature under a load of 390 N and a rotating speed of 1450 r/min for 30 min, and the coefficient of friction …

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  • Tribological characteristic and mechanism analysis of ...

    And GCr15 bearing steel (SAE 52100 steel) balls with a diameter of 12.7 mm and hardness of HRc 64-66 were used to assemble the frictional pair. The wear scar diameters of the three lower balls were measured using an optical microscope with a charge-coupled device (CCD) sensor, which connects with a computer, and the friction coefficients were ...

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  • Effect of metallurgical defect and phase transition on ...

    The counter material was GCr15 bearing steel ball with a diameter of 3 mm and a mean hardness of HRC60, using a test load of 3 N. The friction unit was rotated at a speed of 560 rpm for 15 min, with the rotation radius of 2 mm. The coefficient of friction (COF) of …

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  • Tribological Performance of Silahydrocarbons Used as

    All tribological performance tests were performed under the load of 392 N with a rotating speed of 1450 rpm at 25°C for 30 min. The steel balls (diameter 12.7 mm, hardness HRC 59 to 61) were made of GCr15 bearing steel (SAE 52100).

    Get Price
  • Effect of Texture Shape on Texture’s Frictional Response

    counter ball is 4 mm, and the counter ball is set as a rigid body. The reason for choosing GCr15 for the grinding ball is its high hardness and excellent wear resistance. Material properties include elastic modulus E = 208 GPa, material density ρ = 7810 kg/m3 and Poisson’s ratio v = 0.3.

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  • PREPARATION OF A NEW ORGANIC HETEROCYCLIC

    2012-8-26 · Entity one-way bearing GCr15 bearing steel, after heat treatment the hardness of HRC61-65, bearing the small size and high load carrying capacity, with enough space for storage of grease, may have long come lubrication interval.

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  • Friction and wear properties of ZrO /SiO composite ...

    2020-6-2 · Preparation of new organic heterocyclic lubricating material […] the steel/steel friction pair 181 2. Experiments 2.1. Experimental materials O-aminobenzoic acid is …

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  • Bifunctional hairy silica nanoparticles as high ...

    2016-3-3 · The viscosity of the BHSN-PAO lubricant ... was tested using a four-ball tribometer. GCr15 steel bearing balls with a diameter of 12.7 mm were ultrasonically cleaned with ethanol prior to the test ...

    Get Price
  • Tribological characteristic and mechanism analysis of ...

    And GCr15 bearing steel (SAE 52100 steel) balls with a diameter of 12.7 mm and hardness of HRc 64-66 were used to assemble the frictional pair. The wear scar diameters of the three lower balls were measured using an optical microscope with a charge-coupled device (CCD) sensor, which connects with a computer, and the friction coefficients were ...

    Get Price
  • Search, page 658 - SAE International

    2019-7-11 · The tribological properties of GCr15 bearing steel under different lubrication conditions were tested on a ball-on-disk tribometer. The three-dimensional profile of disk’s worn surfaces and the scanning electron microscope (SEM) micrographs of corresponding steel balls …

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  • Investigation of the tribological behaviour of cermets ...

    2019-12-20 · The wear area of the YN6X ball was the smallest, which was attributed to a relatively high hardness (vickers hardness 1607.2 HV1) compared to the TiCN ball (vickers hardness 752.9 HV1). Moreover, the small wear area was also related to the corrosion resistance of the YN6X ball itself.

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  • Experimental Study on the Stribeck Curve of EHL

    There is an Open Access version for this licensed article that can be read free of charge and without license restrictions. The content of the Open Access version may differ from

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  • PREPARATION OF A NEW ORGANIC HETEROCYCLIC

    2020-6-2 · Preparation of new organic heterocyclic lubricating material […] the steel/steel friction pair 181 2. Experiments 2.1. Experimental materials O-aminobenzoic acid is …

    Get Price
  • In Situ Study of Structure–Activity Relationship

    2020-6-23 · Encouragingly, a lot of research studies have demonstrated that two-dimensional (2D) nanosheets applied as an additive in oils show preferable friction-reducing and wear resistance performance. However, the current issue was that an elusive way could be adopted to probe the structure–activity relationship between the structure and tribological properties of bulk layered …

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  • Density Table of Metals and Alloys (Iron, Steel, Brass ...

    The table below lists out the density values of common metals and alloys, including iron, carbon steel, steel wire, alloy steel, bearing steel, stainless steel, copper, brass, bronze, aluminum, magnesium, nickel, zinc, lead etc. Hope it is of help to you.

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  • Heat Transfer1 | Bearing (Mechanical) | Hard Disk Drive

    2015-11-23 · Heat Transfer1 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. a

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  • PREPARATION OF A NEW ORGANIC HETEROCYCLIC

    And GCr15 bearing steel (SAE 52100 steel) balls with a diameter of 12.7 mm and hardness of HRc 64-66 were used to assemble the frictional pair. The wear scar diameters of the three lower balls were measured using an optical microscope with a charge-coupled device (CCD) sensor, which connects with a computer, and the friction coefficients were ...

    Get Price
  • Friction and wear properties of ZrO /SiO composite ...

    2012-8-26 · Entity one-way bearing GCr15 bearing steel, after heat treatment the hardness of HRC61-65, bearing the small size and high load carrying capacity, with enough space for storage of grease, may have long come lubrication interval.

    Get Price