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Lubricants also have a lower coefficient of friction than the plastic material of the gears, reducing the work lost to friction and heat generation. At indoor temperature, the material shows an excellent resistance to thinned mineral acids, organic acids, bases, and salt solutions. When it comes to the thermal stability of a lubricant, you will want to consider both ends of the spectrum.
Contact Lubricants - Invented by Electrolube - Electrical Contact Lubricants - Invented by Electrolube - Electrical
They undergo rigorous testing for toxicity and are indispensable for the smooth operation of devices like auto-injectors and surgical robotic arms, where precision is paramount. Our natural-coloured and/or transparent plastic tube PA 12PHL is printed black and the black plastic tube PA 12HL is printed white. If you don’t want to leave it to chance, then you can opt to get a lubricant that can provide a compatibility chart where you can check for the material of your plastic gear. They help us to identify popular products and understand your browsing habits so we can display relevant adverts to you. However, some traditional lubrication formulations are not plastic-compatible and can weaken or degrade the plastic part.
Rigid additives like molybdenum and graphite can pierce and weaken a plastic part; however, PTFE additives, even after having the same rigidness, can be very advantageous in some instances by providing dry lubrication.
SPG35SL Electrolube, Grease, Plastics, Special | Farnell UK
Given what we know about how important the suitability of a lubricant to plastic gears is in determining its performance, what are the characteristics that you should be on the lookout for?They offer excellent compatibility with most plastics, good aging resistance, and superior long-term lubrication in a temperature range of -51 – 150°C. High viscosity oils – those with ISO VG of 100 or more – are less likely to penetrate, crack, or otherwise adversely affect plastic materials.
Lubricant For Plastics | MOLYKOTE® Specialty Lubricants - DuPont
However, this really only becomes an issue if a lubricant needs to be placed between two surfaces with such characteristics. Formulated with rust inhibitors to provide corrosion protection, oxidation inhibitors to ensure long life in storage conditions, as well as being water resistant and thermally stable. Esters and polyglycols are generally incompatible with plastic, although there are exceptions based on the type of plastic material. Even worse, some compounds can start breaking down completely outside of their prescribed temperature range.This means that contact between the lubricant and the gear will not cause the gear to deteriorate prematurely, which can make pits or cracks on the surface of the gear over a long time. However, the chemical composition of plastic gears means that engineers and designers need to be careful about the type of compounds that come in contact with them. Sometimes additives can cause an undesirable or unintended reaction between the lubricant and the plastic. If you choose to use grease for lubrication, the choice of thickener adds another layer of complexity to determining which product is suitable for your needs. The use of lubricants appropriate for plastic is a good place to start for anybody relying on plastic gears, bearings, and other moving parts.
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