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Alternative Industrial Biolubricants
Published in Jitendra Kumar Katiyar, Alessandro Ruggiero, T.V.V.L.N. Rao, J. Paulo Davim, Industrial Tribology, 2023
A lubricant is a material that is used to minimize surface friction and wear. Lubricants can be in the form of a liquid, solid, gas, or a combination of all three states. The primary function of industrial lubricants is to spread a fluid layer over solid surfaces. They are also involved in maintaining morphological structure, thermoregulation, and waste disposal.
Lubricating Bearings and Other Machine Elements
Published in Heinz P. Bloch, Kenneth E. Bannister, Practical Lubrication for Industrial Facilities, 2020
Heinz P. Bloch, Kenneth E. Bannister
As shown in this text, a wide selection of greases and oils is available for the lubrication of rolling bearings, and there are also solid lubricants, e.g., for extreme temperature conditions. The actual choice of lubricant depends primarily on the operating conditions, i.e., the temperature range and speeds as well as the influence of the surroundings. The most favorable operating temperatures will be obtained when the bearing is supplied with the minimum quantity of lubricant needed to provide reliable lubrication. However, when the lubricant has additional tasks, such as sealing or the removal of heat, larger quantities are required.
Lubrication of Mechanical Components in Electrical Equipment
Published in Bella H. Chudnovsky, Lubrication of Electrical and Mechanical Components in Electric Power Equipment, 2019
There are three major types of the lubricants: oils (fluid lubricants), greases (soft substances), and solid lubricants. Oils covers a broad class of fluid lubricants, each of which has particular physical properties and characteristics.
Preparation and Tribological Behaviors of Modified Rice Husk Carbon/MoS2 Composite Particles as a Functional Additive in Polyethylene Glycol
Published in Tribology Transactions, 2022
Enzhu Hu, Enhao Su, Yanjie Chen, Ayush Subedi, Jianping Wang, Kunhong Hu, Xianguo Hu, Lixia Tang
Depletion of energy during operation and maintenance of equipment has aroused wide public concern with the development of human society and science. About 40% of the world's energy is consumed by friction and wear on machinery (1). The wear of mechanical parts will lead to failure and damage of mechanical equipment, ultimately reducing the working life. As is well known, 75% of equipment parts are damaged by wear all over the world. Lubricants not only effectively reduce the friction and wear of equipment, but also extend the working life of the equipment. Moreover, lubrication reduces energy consumption. Lubricant additives have great significance in saving energy and improving the operating duration of mechanical equipment. Due to this, lubrication additives have attracted scientists’ attention.
Critical analysis of in vitro stability testing of spinal implants and proposal for standardization
Published in Expert Review of Medical Devices, 2022
Zoltán Csernátony, Sándor Manó, Zsolt Tiba, Géza Husi, Zoltán Jónás, Tímea Váradi, Loránd Csámer, Ágnes Éva Kovács
Lubrication is one of the key aspects of tribology. A lubricant is usually used to keep a distance between two solid materials, consequently preventing direct mechanical contact with each other. The lower the lubricity, the greater the wear of the examined material. The lubricity of a substance cannot be measured directly, moreover it is significantly influenced by other factors such as the shape, microgeometry and extent of the surfaces, viscosity and density of the lubricant, and temperature and pressure [5]. Lubricants can play a key role in the instability of assembled spinal implants in human bodies. Posterior spinal implants are composed of different pedicle screws and hooks, which are connected to two longitudinal rods. Spinal implants mounted on rods are subjected to significant strain after the correction of deformities, and this is compensated by the clamping force of the set screws securing the implant parts together. In the surgical field, both the loosening of the securing set screws and the sliding of the implants on the rods are facilitated by the undesired lubricity of the environment [6] and can be associated with implant failures due to set-screw loosening [7].
Optimization of the lubricating oil inventory policy applied in a mining company
Published in International Journal of Mining, Reclamation and Environment, 2021
Sena Senses, Onur Golbasi, Ismail S. Bakal
Lubrication is the process of control of friction, heat transfer caused by abrasion, wear and tear between moving surfaces in contact to ensure that the large machinery and heavy-duty equipment can perform adequately. The supporting substances that provide better performance with a longer life are the lubricants. They can address various industrial machinery issues, so they are critical for the machinery industry’s progression. There are four main types of industrial lubricants, which are fluid lubricants (oils), semi-solid lubricants (greases), solid lubricants (dry lubricants), and synthetic lubricants (pastes). The most common types of industrial lubricants are oils and greases. Oil lubricants are mostly used in moving parts such as hinges, bearings, tool maintenance, and sharpening blades, or hydraulic mechanisms such as brakes, excavators, and pumps. On the other hand, greases can be used when lubricants are required to stick to surfaces for a long time and stay put. They can also be used as barriers to protect the parts from extreme heat, rust, and corrosion by sealing out the containments such as water and dust. They are generally used in gears, bearings, chains, and linkages. An improper lubrication inventory policy and lubrication application schedule in a machine-intensive sector, such as mining, may cause catastrophic issues in working systems’ functionality, resulting in a massive production loss.