This frame size 57mm bldc motor a built-in drive controller board so it is easily used without an extra driver/controller.
Specifications:
Part Number: 57BL135-IE
Rated Voltage: 24VDC
No-load Speed: 3500RPM
Rated Torque: 0.42Nm
Rated Speed: 2500RPM
Rated Current: 6.0A
Rated Power: 110W
Motor Length: 135mm
Shaft Diameter: Φ8mm
Shaft Length: 25mm