Metric independent brushless servos are not only smart in structures, but also performance. This product was designed to optimize heat dissipation for excellent cooling performance and operate reliably under high temperature. As well as make servo motors run at a higher rate and output larger torque. Powerful multi-pole brushless motor making it more powerful, more durable, and more effective. Integrated gear box is easier to mount and maintain. The gear was designed to be replaceable which will save users budget greatly and save time. Dual ball bearings and metal/aluminum allow (Titanium Plating surface)/stainless steel gear train. Make these servos respond more rapidly and quickly, as well as more smooth.