Chain Conveyor Drive Parts

Selection of lubricants and lubrication system

To reduce friction power losses and wear intensity of friction surfaces, as well as to prevent them from jamming, gouging, corrosion and better heat removal, the friction surfaces of the parts must have reliable lubrication.

A crankcase system is widely used to lubricate the gears. Oil is poured into the reduction gear case so that wheel rims are immersed in it. When rotating, the wheels entrain the oil, spraying it inside the body. Oil enters the inner walls of the housing, from where it flows into its lower part. Inside the housing, a suspension of oil particles is formed in the air, which covers the surface of the parts located inside the housing.

The principle for assigning oil grade is as follows: the higher the circumferential speed of the wheel, the lower the viscosity of the oil and the higher the contact pressure in the engagement, the greater the viscosity of the oil. Therefore, the required viscosity of the oil is determined depending on the contact voltage and the circumferential speed of the wheels.

Contact voltages (from printout).

As per Table 11.1 [2 c. 173] kinematic viscosity is selected.

As per Table 11.2 [2 c. 173] oil grade I-T-S-320 is selected.

Lubricate bearings with the same oil. Since we have a crankcase lubrication system, they are lubricated by spraying.