Compact ball screw with ball retainer "SDA"【THK】
Compact and high-speed compatible! Supports high-speed use at 5000 min⁻¹ (maximum DN value of 130,000)! Achieves slim nut with a new circulation method!
The newly developed end cap and R piece achieve an ideal ball circulation structure and significant compactness. The adoption of a ball retainer eliminates collisions and mutual friction between the balls, improving grease retention as well. As a result, it operates with low noise, minimal torque variation, and achieves long-term maintenance-free performance.
basic information
[Features] ○ Supports high-speed use at 5000 min⁻¹ (maximum DN value of 130,000) ○ Slim nut with a new circulation method ○ Low noise and long-term maintenance-free ○ Low torque variation
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Detailed information
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Supports high-speed use at 5000 min⁻¹ (maximum DN value of 130,000).
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Slim nut with a new circulation method Achieves an ideal ball circulation structure and significant compactness with newly developed end caps and R-pieces. (Compared to THK's conventional return pipe method, a maximum compactness of 30% in outer diameter.)
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Low noise and long-term maintenance-free By adopting a ball retainer, low noise and long-term maintenance-free operation is achieved. The use of an integrated end cap with a labyrinth seal minimizes the gap with the screw shaft, improving grease sealing performance. There is no collision noise between the balls, resulting in good sound quality and further reduction of noise.
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Low torque variation Due to the absence of collisions and mutual friction between the balls, thanks to the ball retainer, torque variation is minimal, allowing for smooth and stable operation.
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Since our establishment in 1987, we have provided various FA equipment tailored to our customers' needs. Now, as a member of the THK group, the world's leading manufacturer of linear motion systems, we have 18 sales locations across Japan, responding quickly and accurately to our customers' requests.