Maintenance Skills for NSK Double Row Deep Groove Ball Bearing Friction
The function of the double row deep groove ball bearing is to make the stationary ring and the rotating ring of the NSK bearing are respectively fixed with the stationary part (usually the bearing seat) and the rotating part (usually the shaft) of the mounting part, thereby realizing the rotating state. The underlying load transfer and the basic task of defining the position of the motion system relative to the stationary system.
On the shaft and in the housing, NSK bearings require their position to be fixed in three directions: radial, axial and tangential. The radial and tangential positioning is achieved by the tight fit of the double row deep groove ball bearing ring. The axial positioning is only used in a few cases; the axial limit parts, such as the end cover and the retaining ring, are generally used. The axial position is limited to the range of the play.
The double-row deep groove ball bearing prevents the adhesion and boundary lubrication when the shaft diameter is in direct contact with the bearing bush. The material factors that affect the frictional compatibility of the friction pair are:
(1) The degree of difficulty in forming an alloy by metallurgical materials.
(2) Affinity of materials and lubricants.
(3) The friction factor of the auxiliary material in the non-lubricated state.
(4) The microstructure of the material.
(5) Thermal conductivity of the material.
(6) The size of the surface energy of the material and the characteristics of the oxide film.
The high-pressure oil is injected into the bearing through the nozzle by the oil pump, and the oil injected into the NSK bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at a high speed, the rolling elements and the cage also form a gas flow at a relatively high rotational speed, and it is difficult to send the lubricating oil to the NSK bearing by a general lubrication method. At this time, the lubricating oil must be used by the high-pressure injection method. Spray into double row deep groove ball bearings, the position of the nozzle should be placed between the inner ring and the center of the cage.
On the shaft and in the housing, NSK bearings require their position to be fixed in three directions: radial, axial and tangential. The radial and tangential positioning is achieved by the tight fit of the double row deep groove ball bearing ring. The axial positioning is only used in a few cases; the axial limit parts, such as the end cover and the retaining ring, are generally used. The axial position is limited to the range of the play.
The double-row deep groove ball bearing prevents the adhesion and boundary lubrication when the shaft diameter is in direct contact with the bearing bush. The material factors that affect the frictional compatibility of the friction pair are:
(1) The degree of difficulty in forming an alloy by metallurgical materials.
(2) Affinity of materials and lubricants.
(3) The friction factor of the auxiliary material in the non-lubricated state.
(4) The microstructure of the material.
(5) Thermal conductivity of the material.
(6) The size of the surface energy of the material and the characteristics of the oxide film.
The high-pressure oil is injected into the bearing through the nozzle by the oil pump, and the oil injected into the NSK bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at a high speed, the rolling elements and the cage also form a gas flow at a relatively high rotational speed, and it is difficult to send the lubricating oil to the NSK bearing by a general lubrication method. At this time, the lubricating oil must be used by the high-pressure injection method. Spray into double row deep groove ball bearings, the position of the nozzle should be placed between the inner ring and the center of the cage.
For more information and purchase please visit: https://www.supplyforever.com
评论
发表评论