GE A06B-0853-B395#3000 Spindle Motor

Technical Specifications and Mechanical Design

This AC spindle motor provides rotary power for CNC machine tool spindles. The GE A06B-0853-B395#3000 delivers high torque across a wide speed range. You can mount this unit directly onto gearboxes or belt-driven spindle assemblies. Its fully enclosed housing protects internal windings from coolants and debris. The motor weighs approximately 18.5 kilograms. Its dimensions measure 36 cm in height, 22 cm in width, and 28 cm in depth.

Parameter	Specification
Brand	GE Fanuc Automation
Model	A06B-0853-B395#3000
Category	AC Spindle Motor / Main Drive Motor
Weight	18.5 kg
Height	36 cm
Width	22 cm
Depth	28 cm
Rated Output Power	7.5 kW (10 HP)
Rated Torque	48 Nm
Maximum Speed	6000 RPM
Rated Speed	1500 RPM
Number of Poles	4
Insulation Class	F (155°C)
Enclosure Type	Totally enclosed non-ventilated (TENV)
Energy Storage	None (rotational inertia only)
Component Count	Stator, rotor, 2 bearings, 1 encoder, 1 fan

Winding Configuration and Thermal Performance

The stator carries three-phase copper windings with class F insulation. This insulation withstands temperatures up to 155°C continuously. An internal thermistor monitors winding temperature in real time. The motor will signal an overheat warning before any damage occurs. The GE A06B-0853-B395#3000 includes a built-in centrifugal cooling fan. This fan moves air across the outer housing during operation. Consequently, the motor maintains safe temperatures even at low speeds.

Feedback System and Speed Control

A built-in pulse coder provides precise rotor position feedback. This encoder outputs 1024 pulses per revolution for accurate speed control. The motor connects directly to a compatible FANUC spindle amplifier. A single multi-conductor cable carries both power and feedback signals. The encoder draws its operating power from the amplifier unit. Therefore, the GE A06B-0853-B395#3000 requires no separate battery or external power source. You must use shielded cables for all encoder connections. This practice prevents electrical noise from corrupting position data.

Installation and Mechanical Interface

The motor shaft includes a standard keyway for pulley or coupling mounting. Two threaded holes on the face accept lifting eyebolts for safe handling. You must align the motor base carefully with the driven equipment. Misalignment will cause premature bearing failure and vibration. The unit operates reliably in ambient temperatures from 0°C to 40°C. Proper ventilation around the cooling fan ensures maximum thermal performance.