Why is the starting resistance of plain bearings high?
Their production mechanism and effect are differentAn object (such as wheel) on another object surface for rolling without sliding when (pure rolling), due to the two objects in the contact part of the compression deformation of block rolling, called "rolling friction." is generally used to measure the rolling friction resistance moment, the size and the force of the nature, objects the shape of the surface and rolling the weight of the object.
The rolling friction is actually a block rolling torque. When an object is rolling in the non smooth plane, if not by force or torque, its movement will gradually slow down, until still. Because objects and plane contact deformation. The object by gravity into the bearing surface, but also by the compression and deformation of the object itself, when the object is rolling forward, bearing surface uplift at the contact front, so the elastic object does not point to the axis and move forward.
It is this. Force produces an anti torque that prevents an object from rolling, which is called rolling frictionWhen the object is rolling, the contact surface is changing all the time. The rolling friction force of the object is essentially static friction. The softer the contact surface, the greater the shape change, the greater the resistance torque, the greater the rolling friction
