Cross Roller Ring provides precise rotary motion.

Press Release Summary:

Featuring one-piece outer and inner ring construction with mounting holes on both rings, Type RU requires no precise housing preparation or special fixturing. Sizes range from 20-350 mm ID and 70-540 mm OD with roller pitch circle diameters from 41.5-445.4 mm. Applications range from industrial robots to video arcade machines such as virtual skiing games.

Original Press Release:

Exclusively From THK, The Type RU Cross Roller Ring Cuts Overall Costs By Up To 50%

Schaumburg, IL - (June 27, 2006) A THK original design, the Type RU Cross Roller Ring's unique configuration results in an overall costs savings of up to 50%. Featuring mounting holes on both rings, the Type RU requires reduced parts and labor.

The simple design of the Type RU consists of one-piece outer and inner ring construction, and requires no precise housing preparation or special fixturing. The THK engineered design allows for easy installation with either inside or outside ring. The Type RU's extremely rigid construction ensures highly accurate and ultra-smooth motion.

Application examples using the Type RU range from industrial robots to video arcade machines (virtual skiing game). Installed in robot joints, the Type RU achieves incredibly precise rotary motion, allowing for reliable operation. In the arcade game example, the Type RU provides smooth and true-to-life turning motion.

The Type RU is available in a range of sizes, from 20mm to 350 mm inner diameter and 70mm to 540mm outer diameter. Roller pitch circle diameters range from 41.5mm to 445.4mm.

THK manufacturers the widest range of linear motion products including conventional LM guides, ball screws, mechanical actuators and ball splines and more. All THK products have been designed and manufactured to meet the strictest requirements. THK's experienced Global Engineering Team can provide customized linear motion solutions with our standard linear motion products as well as our mechatronics products for your most demanding applications.

To learn more, log on to or contact THK America, Inc., 200 E. Commerce Dr., Schaumburg, IL 60173, Phone: (847) 310-1111, Fax: (847) 310-1182, e-mail:

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