Grease lubrication gear couplings

Author: Foshan Electrical and Mechanical center

Toothed couplings have double, single head tooth, jaw, spring-chip, disc springs, Oldham-type and other types of roller chain. Because of the different types, some with lubricating oil, and some are lubricated with grease. Steel rolling mill Oldham coupling means universal coupling, this coupling is an indispensable component rolling equipment, working conditions extremely harsh. Semi-circular copper coupling slider will work in severe shock load and extreme pressure (skew angle link is often greater than 120), and therefore, flat and circular surface of the slider will have serious wear and tear. Furthermore, the entire coupling but also by dust, iron scale, the passage of moisture and high temperatures dip. Obviously, in such harsh working conditions, maintain good lubrication is very important. Rolling mill slider coupling with grease, there are extreme pressure lithium grease (including semi-fluid extreme pressure grease), graphite, calcium-based grease and grease calender. Where there are special requirements, you should use the appropriate special grease. In tandem rolling mill spindle coupling, typically using a sliding type and gear type, there is commonality in lubrication, the use of lithium grease or. MOS, as the main body of the anti-friction agents, friction-reducing effect can be obtained. Meanwhile, in order to improve the adhesion of the grease coupling, nip resistance, Timken OK value, the amount of iron powder to reduce friction, and to improve the workability and prolong the life of the gear, it can also be used a special calcium-based grease.

In addition, the flexible and tooth couplings, some with grease lubrication. That is, when the coupling operation, can be obtained due to squeeze grease lubrication. The assembly is coated with grease to ensure there is enough internal lubrication. Grease with high-speed device, it is necessary to ensure that oil soap does not separate under the action of centrifugal force, otherwise the oil spill couplings reduce the lubricating effect. Efficiency also requires more, namely to have heat resistance, cold resistance and have a certain time and at low temperatures. Spring piece coupling lubrication, most application grease. When assembled, the grease must be filled between the gate sheet, wrap it really drain fat. Work to regularly check, additional grease is generally used extreme pressure lithium grease.

Pin couplings and flexible couplings chain, are generally using extreme pressure lithium grease. Universal primary coupling is lubricated with grease, in the case of downtime, but also often add fat, generally require good water resistance, strong adhesion properties of grease products.