SHS SSR SHW HSR SR HRW JR HSR-M1 SR-M1 HSR-M2 Linear Motion THK

With the Caged Ball LM Guide, the use of a ball cage allows lines of evenly spaced balls to circulate eliminating friction between the balls. In addition, grease held in a space between the ball circulation path and the ball cage (grease pocket) is applied on the contact surface between each ball and the ball cage as the ball rotates, forming an oil film on the ball surface. As a result, the oil film is not easily broken.

• The absence of friction between balls, together with increased grease retention, achieves long service life and long-term maintenance-free (lubrication-free) operation.
• The absence of ball-to-ball collision achieves low noise and reduced running sound.
• The absence of friction between balls enables low heat generation and high speed operation.
• The circulation of rows of evenly arranged balls ensures smooth movement.
• The absence of friction between balls allows high grease retention and low dust generation.

Grease pockets along the entire length of the ball circulation components keep balls lubricated for long-term maintenance-free operation.

● Data on Long Service Life and Long-Term Maintenance-Free Operation

Use of a ball cage eliminates friction between balls and increases grease retention to achieve long service life and long-term maintenance-free operation.

Operating conditions
Speed	:	60 m/min
Stroke	:	350 mm
Acceleration	:	9.8 m/s2
Orientation	:	horizontal
Load	:	Caged Ball LM Guide	:	11.1 kN
		Full-Ball type	:	9.8 kN

Ball cages eliminate the sound of collision between the balls, allowing for low-noise operation.

● Noise Level Data

Since the ball circulation path inside the LM block is made of resin, metallic noise between balls and the LM block is eliminated. In addition, use of a ball cage eliminates metallic noise of ball-to-ball collision, allowing a low noise level to be maintained even at high speed.

Ball cages eliminate friction between balls to eliminate heat generation and allow high-speed operation.

● High-Speed Durability Test Data

Since use of a ball cage eliminates friction between balls, it enables low heat generation and high-speed operation.

Held in place by the ball cage, balls remain evenly spaced as they circulate.
Keeping balls from falling out of alignment prevents sudden spikes in friction and provides stable motion.

● Rolling Resistance Data

Use of a ball cage allows the balls to be uniformly aligned and prevents a line of balls from meandering as they enter the LM block. This enables smooth and stable motion, minimizes fluctuations in rolling resistance, and ensures high accuracy in any mounting orientation.

● Low Dust Generation Data

In addition to eliminating friction between balls, using resin for the through holes also eliminates metallic contact. Furthermore, the Caged Ball LM Guide has a high level of grease retention and minimizes spattering of grease, thus achieving superbly low dust generation..