In order to adapt to various purposes, the roller screws provide a variety of standardized products. The circulation method of the ball is circulating duct, circulator, and end cover. Preparatory methods include positioning pre -pressure (dual nuts, position pre -pressure method), and fixed pressure pre -pressure. You can choose an appropriate type according to your use. The screws have high-precision grinding precision roller screws (accuracy is divided into 7 levels from CO-C10) and cold-rolled beads bearing (accuracy is divided into 3 from C-C10 3 from C-C10 3 of high-precision cold-rolled processing. There are only a few levels that can be done).
Based on the technology of accumulated products accumulated for many years, the rolling bead screws are managed from materials, heat foreignics, manufacturing, inspection to shipments, and they are managed by rigorous product protection systems, so they have high faith.
(1) Double -push a free way? The end of the screw is fixed. The fixed end bearing is also inherited with axial force and radial force. This supporting method is used for short screws with small strokes.
(2) Double push a way? One end of the screw is fixed to the other end. The fixed end bearing is also inherited with axial force and radial force? The support of the support is only to withstand the radial force? And the axial floating can be used to avoid or reduce the bending of the screw due to self -weight. At the same time, the heating deformation of the silk bar can be extended freely to one end.
The screw bearing is a bearing for the screws, which is a sharp -linked angle contact bearing. It has a greater contact angle than the general angle contact bearing and can withstand greater axial force. Because the screws are mainly axial forces, most of them are supported by thrust bearing. Under the same size conditions, the stiffness of the thrust ball bearings bearing is more than double the axial stiffness of the heart -pushing thrust bearing and the cone roller bearings; the rolling roller bearing rigidity is more than doubled than the thrust sphere bearing. When the bearing load is small, it is not necessary to use the stubborn thrust bearing without thrusting the ball bearings, which can reduce the number of bearing.
Factors that should be considered when selection of silk strokes:
1. Determine the diameter with load
2. Determine the length of the rumor bearing in actual needs
3. Determine the accuracy
4. Consider the guidance and installation capacity
5. Determine the formation of the wire bar bearing nut in installing conditions and dimensional structures
6. Choose to determine the installation method (end)
7. Determine the wire bar bearing guide at the straight line speed and rotation speed