نتایج جستجو برای: grease lubrication
تعداد نتایج: 7089 فیلتر نتایج به سال:
Abstract NiMo-5%TiC, NiMo-15%TiC, and NiMo-25%TiC coatings were prepared on GCr15 steel by laser cladding (LC). The microstructure the phases of obtained analyzed using ultra-depth-of-field microscopy (UDFM) X-ray diffraction (XRD), respectively. A ball-on-disk wear test was used to analyze friction-wear performance substrate NiMo-TiC under grease-lubrication condition. results show that grain ...
Effect of start-stop motion on contact replenishment in a grease lubricated deep groove ball bearing
The impact of start-stops on the thickness lubricating films in Elasto-Hydrodynamic Lubrication (EHL) contacts grease lubricated rolling bearings is different from that oil bearings. This paper shows film drops to zero quickly due absence hydrodynamic effects during a stop. It increases an unexpected large value when bearing stopped for long time and started up again, although this only lasts v...
Greased bearings in electric motors (EMs) are subject to a wide range of operational requirements and corresponding micro-environments. Consequently, greases must function effectively these conditions. Here, the tribological performance four market-available EM was characterized by measuring friction wear silicon nitride sliding on hardened 52100 steel. The evaluated had similar viscosity grade...
The grease gun injury is an uncommon injury to the orbit. However, high-pressure injection of grease, oil, or paint is frequently reported in injuries of the hand and usually affects the fingers or palm, which require complicated surgical and medical care. Two cases of grease gun injury to the orbit are reported: one, a catastrophic injury, and the other resulting in satisfactory recovery after...
To measure the effects of dietary fat on feedlot performance and carcass characteristics, and on beef appearance, moisture binding, shelf life, palatability, and fatty acid content, 126 crossbred beef steers (321.1 +/- 0.57 kg of BW) were allotted to a randomized complete block (3) design with a 3 x 2 + 1 factorial arrangement of dietary treatments. The main effects were level of yellow grease ...
The grease matrix was originally introduced as a microcrystal-carrier for serial femtosecond crystallography and has been expanded to applications for various types of proteins, including membrane proteins. However, the grease-based matrix has limited application for oil-sensitive proteins. Here we introduce a grease-free, water-based hyaluronic acid matrix. Applications for proteinase K and ly...
Abstract A series of ring compression tests using BS970:708M40 alloy steel samples were studied. These conducted a 2-factor soak-temperature variable, namely 1030 °C and 1300 °C, 4-factor lubricant variable consisting unlubricated samples, synthetic water-based, graphite molybdenum disulphide viscous grease. The agents all applied to the tool/billet interface. Process variables such as blow for...
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