2.2KW ER20 Square Air Cooled Spindle Motor with 2.2KW Inverter / VFD Kits +13PCS ER20 for CNC Milling Machine ,Efficient Performance

1. Adopting precision steel ball retainer, the rotation precision is higher, which ensures the rotation precision of the electric spindle during high-speed grinding. 2. Fan cooling, no water pipe, direct connection, more convenient. 3. The spindle is lubricated with 200 degree high temperature grease. 4. The body is made of greased stainless steel to keep the body clean and not easy to rust. 5. 24,000 ultra-high speed rotation per minute, running smoothly, running sound is only 50-60 decibels, low noise. Note: The default setting of the spindle is 400HZ.