Achieved a DN value of 210,000 (realizing a maximum feed speed of 200 m/min).
The SBK type high-speed ball screw with ball retainers is a large lead ball screw designed to eliminate collisions and mutual friction between balls, thereby improving grease retention. As a result, it achieves low noise, high speed, and long-term maintenance-free operation. Furthermore, the ideal circulation structure that scoops the balls in the tangential direction (see Figure 2) enables high-speed use at a DN value of 210,000. (*DN value = ball center diameter × revolutions per minute)
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basic information
● Excellent High Speed The circulation structure, which allows the balls to be scooped up in the tangential direction by the end cap, enables usage at a DN value of 210,000 and achieves high-speed feeding of 200 m/min. ● Excellent Sliding Performance The ball retainer eliminates mutual friction between the balls, reducing torque fluctuations, resulting in smooth and stable operation. ● Long-term Maintenance-Free The formation of grease pockets has improved grease retention, achieving long-term maintenance-free operation. ● Low Noise and Good Sound Quality The ball retainer eliminates collision noise between the balls. Furthermore, the circulation structure that scoops the balls up in the tangential direction also resolves collision noise caused by the circulation of the balls, achieving low noise levels.
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Applications/Examples of results
Work machine drive unit, robot transport cart
Company information
THK pioneered the "rolling" of linear motion components in machines in 1972 and developed the "linear motion system." The development of this "linear motion system" has led to increased precision, speed, labor-saving, and improved efficiency in machinery, enabling energy-efficient equipment design. All of THK's technology is focused on providing greater lightness and precision to the "movement" of various mechanisms, bringing numerous innovations to the world. 【THK's Main Product Areas】 1. Mechanical Component Parts: - Development, manufacturing, and sales of LM guides, ball splines, ball screws, electric actuators, etc. 2. Mechatronics Related Products: - Precision XY stages, linear motor actuators, etc. 3. Automotive Parts: - Link balls, rod ends, etc. 4. Robotics: - Pick and place robots "PPR," transport robots "SIGNAS," service robots "SEED-Solutions" (including display robots and temperature measurement robots), etc. 5. Seismic Isolation: - Seismic isolation tables TSD, seismic isolation modules TGS.