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: 57BL115-IE
Rated Voltage: 24VDC
No-load Speed: 4000RPM
Rated Torque: 0.32Nm
Rated Speed: 3000RPM
Rated Current: 5.5A
Rated Power: 100W
Motor Length: 115mm
Shaft Diameter: Φ8mm
Shaft Length: 25mm