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Linear slide roller bearing rail block RUS series

23 Published by admin Nov 13,2024

  Linear roller bearing rail block RUS series is a type of rolling or sliding bearing used for linear motion, characterized by low friction, reliable structure, strong load-bearing capacity, high precision for long-distance operation, and long service life. They are commonly used in various industrial machinery and equipment such as machine tools, punch presses, and printers. The suspension frame of medium and low-speed maglev vehicles is composed of multiple modules with the same basic structure assembled. When the maglev train passes through a curve, the suspension frame module will fit into a curve according to the line shape, resulting in different lateral displacements of the modules at different positions relative to the vehicle body, with the end modules experiencing lateral displacements exceeding 300mm. Considering that the air springs commonly used in locomotives and vehicles are not sufficient to provide such a large displacement, linear bearings with high displacement technology characteristics are installed between the vehicle body and the suspension frame to meet the curve requirements of medium and low-speed maglev vehicles.
roller bearing rail block
  The structural dimension design of linear roller bearing rail block RUS series mainly considers the length dimension of linear guide rails. When passing through a curve, the slider moves left and right relative to the linear guide. Based on the fitting analysis results of the minimum radius curve in the previous section, the length of the linear guide should meet the maximum lateral displacement requirement of the slider's left and right movement, and reserve a certain safety margin. The safety margin reserved for linear guides is greater than 30 mm, meeting the safety requirements for linear bearings sliding left and right.
roller bearing rail rus
  (1) Strength verification of linear roller bearing rail block RUS series
When calculating the strength of the slider, select the linear bearing slider on the middle sliding table with the highest force as the calculation object, apply fixed constraints on the slider positioning hole, and apply a load on the interaction surface between the slider and the guide rail. When calculating the strength of the guide rail, the linear bearing guide rail of the middle sliding table is selected as the calculation object, fixed constraints are applied to the positioning holes of the guide rail, and a load is applied on the interaction surface between the guide rail and the two sliders.
  (2) Strength verification of connectors
The linear bearing connectors mainly include M10 bolts that connect the slider and slide table, as well as M8 bolts that connect the guide rail and the vehicle body bottom plate. By applying pre tightening force to the bolts, the joint surface of the connected body does not undergo relative displacement when subjected to lateral loads.

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