The Taiwan Shangyin Silent Heavy Load Ball Linear Guideway HIWIN relies on a four row single arc teeth touch design, and is developed as a high-performance linear slide rail to improve rigidity. The QH collection ball linear instruction manual rail geared up with a patented synchronous coupling with oil storage function utilizing SynchMotion know-how can effectively lower time noise, improve operation smoothness, lifespan, and lubrication efficiency. The QH sequence ball linear guide rail using SynchMotion expertise has a wider differ of purposes and is more compatible for high-tech industries with excessive speed, tranquility, and low engine demand.QHH15CA featuresQH series silent heavy-duty linear guide rail model letter represents explanation: QH represents high organization silent number, entrance H represents sq. number, back C represents regular slider, H represents prolonged slider.