Matters Needing Attention In The Application Of Ina Outer Spherical Bearing
Matters Needing Attention In The Application Of Ina Outer Spherical Bearing
2021年12月9日
Types Of Ceramic Bearings
Types Of Ceramic Bearings
2021年12月9日

Japan NSK Develops Grease Sealed Bearings With Low Torque

In order to face the problem of controlling the throttle motor of automobile intake and exhaust and EGR (exhaust gas recirculation system) motor;

 

Japan Seiko NSK imported bearings have developed low torque grease sealed bearings

Because the lubricating grease can enter the conveying surface when the shear force is weak; Therefore, there is a large amount of grease on the ball and track surface The grease newly developed by Japan Seiko must have strong shear force when entering the transportation surface; Therefore, the amount of grease on the ball and track surface is enough

Japan NSK Develops Grease Sealed Bearings With Low Torque
 
After this new method, the initial torque can be stabilized in a short time;

Reduce the running in rotation time by 70% than before; In addition, the safe torque ratio has been reduced by 30% (when used at 100 ℃); It has also completed the same or higher sintering life as the previous grease. General; To reduce torque; They are run in and rotated when the motor is assembled; To reduce the initial resistance of lubricating grease and reduce the viscosity of base oil components But; The key problem of this method is not only the running in rotation consumption time; And after reducing the viscosity of base oil; The service life will be shortened when used at high temperature

 

Therefore; Japan Seiko reduces grease resistance by adding nano particles in grease thus; Compare with the original; Not only can it stabilize the torque faster; And the bearing can last longer even at high temperature Adding ceramic particles in grease; Thus, the components in the base oil are connected like a chain; This makes the grease more functional Detailed material designation and particle size were not released