LINEAR GUIDE TRH-V

Features of TBI MOTION Linear Guide
■ 1-1-1 High Accuracy
Linear Guide has little friction, only a small driving force is needed to move the load. Low friction helps the temperature rising effect to stay low. Thus, the friction is decreased and the accuracy can be maintained for a long period than tradition slide system.
■ 1-1-2 High Rigidity
The design of Linear Guide features an equal load rating in all directions that provide sufficient rigidity load in all directions, self-aligning capability to absorb installation-error. Moreover, a sufficient preload can be achieved to increase rigidity and makes it suitable for any kind of installation.
■ 1-1-3 Easy for Maintenance
Compared with high-skill required scrapping process of traditional slide system, the Linear Guide can offer high precision even if the mounting surface is machined by milling or grinding. Moreover, the interchangeability of Linear Guide gives a convenience for installation and future maintenance.
■ 1-1-4 High Speed
Linear Guide block, rail and ball apply by contact point of rolling system. Due to the characteristic of low friction, the required driving force is much lower than that in other systems, thus the power consumption is low. Moreover the temperature rising effect is lower even under high speed operation.
■ 1-1-5 High Mechanical Efficiency without Clearance

Low Assembly, Standard Type
With rolling system, the friction is reduced during operating, TRH-V series only needs low driving force to operate. The exclusive contact design gives TRH-V the ability to balance load rating in all direction by itself, increasing accuracy and service life.

Drawing	Characteristics, Performance
	● Two trains of balls. ● In a Gothic-arch groove, each ball contacts the raceway at four points 45°- 45°. ● It has constant contact point between ball and arc groove. ● Rigidity has high stability. ● Two-row design is able to perform an equal load rating in four directions.
	● Four trains of balls. ● The circular-arc groove has two contact points at 45°- 45°(DF)-Four-Row Design features an equal load rating in all four directions with high rigidity. ● Four-row design is able to perform an equal load rating in four directions. ● Self-Aligning to absorb installation-error.
	● Four trains of balls. ● The circular-arc groove has two contact points at 45°- 45° (DB). ● Four-Row Design features an equal load rating in all four directions with high rigidity. ● Low friction promotes smooth operating condition.
	● Four trains of balls. ● In the Gothic-arch groove, each ball contacts the raceway at two points 45°- 45°, Light preload, two contact points, Heavy preload, four contact points. ● Compared with traditional DB type, it has higher rigidity.

The Contract table of four-row design with equal load rating and two-row Gothic design.

As shown in the diagram, the difference between inner surface circumference(πd1)and outer surface circumference(πd2)which is the contact point of ball, it is the slip that will occur while the ball rolling, this is called differential slip.. if the differential slip is larger, the ball will rotate while rolling, increasing the friction coefficient and friction resistance. Under the condition with preload and loading, due to the two point of contact the difference between d1 and d2 is little, the differential slip is little as well, the smoothness of rolling can be achieved and thus increase efficiency