The Taiwan Shangyin Silent Heavy Load Ball Linear Guideway HIWIN is based on a four row single arc teeth contact design, and is advanced as a high-performance linear slide rail to enhance rigidity. The QH series ball linear instruction manual rail geared up with a patented synchronous coupling with oil garage function utilizing SynchMotion expertise can efficiently reduce time noise, upgrade operation smoothness, lifespan, and lubrication efficiency. The QH sequence ball linear guide rail using SynchMotion know-how has a much wider differ of applications and is more compatible for high-tech industries with high speed, tranquility, and occasional engine demand.QHH30CA FeaturesThe QH series silent heavy-duty ball linear guide HIWIN self-lubricating design would not require oil patent. The synchronous coupling within the middle is designed with an oil garage space, which can delivery the lubrication desires of the metallic balls during operation. When passing during the directional rotation part, the lubricating oil can be evenly added to the oil garage space, continuing to flippantly lubricate the metallic balls. Therefore, the frequency of lubricating oil supplementation could be efficiently reduced.