Vr1 Vr2 Vr3 Vr4 Vr6 Vr9 Vr12 Vr15 Cage Guideways Cross Roller Linear Guide Rail

[Dongguan Zhaosong Precision Machinery] supplies a variety of linear guide, cross guide, ball screws, all kinds of bearings, cages and slide and other non-standard customized series of machine tool guide transmission accessories.

Principle of operation of VR series cross roller guideway:

Crossed rollers use rows of rollers arranged in 90-degree intersection as the rolling body between two V-type guide bars. Roller between the two guide rails, along the guide rail of the two 90 degrees of the guiding surface rolling forward, so as to realize the rolling friction in the line contact state.
Crossed roller guide is also called crossed roller guide. (Wired travel guides that use balls as rolling elements are called crossed ball guides)

Crossed roller guide performance characteristics:

a.[Limited stroke linear motion]: Because the roller relative to the guide rail to the guide rail running speed of 1/2 for movement, if there is no limit, to reach a certain stroke, the roller and its cage will be out of the guide rail, the movement is a limited stroke linear motion.
b.[Can withstand multi-directional load and torque]: Spaced cross-arrangement of rollers, no matter which direction the load comes from, always have half of the rollers can be used to carry, therefore, can withstand multi-directional load and torque. Thus, the load carrying capacity is positively correlated with the number of rollers.
c.[Preload can be adjusted at any time]: The degree of preload of the motion mechanism can be changed at any time by adjusting the lateral compression device of the guide bar.
d.[High rigidity movement]: The cross roller and the guideway are in linear contact with each other, and the roller itself has a * rigidity performance. At the same time, by adjusting the degree of preload and selecting more rollers, high rigidity operation can be realized.
e.[Friction resistance is small smooth running]: The roller and the guide rail to maintain rolling friction, which makes the friction resistance coefficient can be as small as 1 ‰ or even higher. Due to the simple shape of the roller and guideway surface structure, it is easier to obtain * precision in the process, so it is easier to obtain the characteristics of smooth and stable operation than other guiding methods.
f.[Small start-up force] Long fatigue life and precision life, especially suitable for short-stroke fast back-and-forth movement.
g.[High linear accuracy and fast response] Suitable for fine adjustment of sub-micron or even higher resolution.
 

Typical application examples:

a.Requirements for very smooth movement, smooth occasions: such as spark machines, wire cutting, three-dimensional coordinate measuring machine, projector, etc..
b. Small stroke, high-frequency fast back and forth movement of the occasion: such as semiconductor bonding machine, solid crystal machine, component testing, spring machine, etc..
c.Requirements for precision, micro-adjustment of the occasion: such as photoelectric device assembly with precision displacement table, communication optical devices, fiber optic to the whole operating table.
d.Continuous work, high reliability, long life occasions: such as winding machine, SMD machine, dispensing machine, resistance and capacitance production line, LED production.

Cross roller guide rail model and specifications:
V2 series, V3 series, V4 series, V6 series, V9 series, V12 series, V15 series, V18 series