- Backlash (Deterioration of Stopping Accuracy)
- Noise and vibration due to teeth rattling
- Wear and dust generation in the meshing area
A combination of a high-performance rack having a linear trochoidal tooth profile or a high-performance ring having a curved profile, and a pinion with a roller pin that rolls along the teeth, realizing rotational-to-linear motion by complete rolling.
It allows for Zero-Backlash, high-precision positioning, and light motion performance.
The TCG Roller Pinion has a structure in which both rollers are supported by needle bearings to ensure smooth rolling.
The grease sealed in the bearing also removes the need for grease maintenance.
The shaft is frictionally fastened to the roller pinion via tightening the attached fastener, eliminating backlash at the fastened section.
Zero-Backlash
Trochoidal profiled tooth enables us to make a plurality of mutual teeth mesh at one time. The teeth always mesh via two or three portions and eliminate backlash when rotated in one or another direction.
Furthermore, since the roller of Roller pinion has a mechanism that rotates independently, it can be applied the preload (the pinion is pressed against the rack / ring), and it operates smoothly even when there is no backlash (clearance).
Low noise
Rollers smoothly mesh with the optimized trochoidal tooth surface so as to avoid rattling noise, tooth striking noise and rotating noise from being induced together.
Low dust
Due to the smooth rotation, the structure dispenses with a least amount of heat and dust generated and cope with a clean room operation.
No need to maintenance for Lubricating grease
TCG series is Maintenance-free untill the rated life is achieved by applying grease only for the first time.
*Proven by our evaluation test.
(Please note that the grease life is affected by various conditions such as the usage environment.)
Clean room
Extendable with use of the connection jig “CJ”.
*We have the achievement of up to 74m.
Capable of high speed driving of 180 m/min or more.
Combination of
Cam Rack and Ball Reducer with Roller Pinion
The circular arc ring has been realized by the precision processing.Ring diameter up to tens of meters can be realized by combining the circular arc rings or can use only the necessary degrees.
Cam Ring is realized
large-diameter and large-hollow by segmentation.
