Main USES：this series of machine tools is mainly used for groove grinding of Self-aligning roller bearing.1, CNC ac servo control system (PLC or CNC system), color screen display, "man-machine dialogue" and with fault self-diagnosis function.Equipped with electronic pulse handwheel.2. Adopt cross guide rail.3. The work-piece feed pallet and grinding wheel running pallet are driven by servo motor.4. External cylindrical cutting grinding of grinding wheel.5, electromagnetic centerless fixture, remote control control demagnetization controller, in the operation panel to adjust the size of the magnetic force.6. The workpiece shaft adopts sleeve Works spindle，Frequency control of motor spee。