Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年8月14日星期三
The use of cross roller bearing characteristics
1, with excellent rotational accuracy
Crossed roller Backing bearings internal structure of the roller at 90 ° to each other are arranged perpendicular to the cross, with spacing between the roller cage or spacers to prevent tilting cargo roller mill roller between the police, effectively preventing the rotation torque increase.
2, the operation simplifies installation
Is divided into two parts of outer or inner ring, rollers and loading the holder after being fixed together, so that the installation operation is very simple.
3, bear large axial and radial loads
Because roller at 90 ° to the V-shaped groove raceway via a spacer retainer is arranged perpendicular to each other, this design makes cross roller bearings can withstand greater radial load, axial load and moment load and all the direction of the load.
4, significant savings in installation space
Cross roller bearing outer ring size is minimal miniaturization, especially thin structure is close to the limit of small size, and high rigidity.Raceways and rollers on the line contact structure provides maximum rotational accuracy, high stability and greater tilt stiffness.
Preload adjustable design extends bearing life, the maximum extent possible to increase the rigidity and provides a minimal beat.
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