Q1:What is the role of the main bearing of the ball mill?

A:The function of the main bearing of the ball mill is to set the dynamic pressure oil wedge in the oil chamber of the static pressure bearing, which can float the shaft with static pressure at rest and produce a lot of dynamic pressure when rotating. It has the characteristics of static pressure and dynamic pressure, so that the bearing capacity and vibration resistance can be further improved.
Characteristics of dynamic and static bearing:
High precision: the oil film has a strong homogenization effect, which can effectively reduce the influence of machining errors on the motion accuracy.
High stiffness: The oil film has a very strong stiffness, often much higher than the bending strength of the spindle itself.
Long life: pure liquid lubrication, theoretically unlimited life, if the design is reasonable oil supply normal use for decades without wear.
High bearing capacity: static pressure, static and static pressure support can be competent for high-power full-load cutting of various machine tools, and can withstand the impact of external forces.
Good vibration resistance: the oil film has a strong vibration absorption force, which can weaken the influence of external vibration.

Q2:Why do bearings use lubricant?

A: 1. Lubrication: When the shaft rotates, an oil film is formed between the shaft and the dynamic and static part of the bearing to prevent static and static friction.

2. cooling effect: the shaft works at high temperature, the temperature of the bearing is also very high, and the lubricating oil takes away part of the heat when flowing through the bearing to cool the bearing. 3. cleaning effect: bearing long-term work will produce fine powder, lubricating oil will take away part of the powder, so as not to destroy the oil film.

Q3:What is the role of the bearing sleeve?

(1) Bearing sleeve is widely used in light load easy to disassemble places. There are many bearings in the assembly and disassembly will encounter difficulties, especially in the box internal bearing assembly is limited by conditions, the application of bearing sleeve can solve the assembly and disassembly problems.
(2) The bearing sleeve can be adjusted tightly, so that the processing accuracy of many boxes can be relaxed, and the efficiency of the box processing can be greatly improved.
(3) The installation of the bearing sleeve also overcomes the axial movement of the bearing.
So the bearing sleeve is widely used, but there are also some shortcomings, the accuracy of the bearing sleeve directly affects the radial runout of the shaft.

Q4:What is the function of the clutch release bearing?

Clutch release bearing is a kind of push bearing, its function is to push the pressure plate or drive disk to the direction of the clutch cover when the clutch pedal is pressed down, that is to say, when the clutch pedal is pressed down, the separation lever is bent to overcome the pressure plate spring thrust to complete the clutch separation work. The clutch separation lever rotates with the pressure plate, while the operating mechanism linked with the clutch pedal cannot rotate. In order to adapt to the different motion conditions between the two, thrust bearings are used to reduce friction and wear.