Motor ratings and feedback — what they mean for the axis
The 1FL6052-2AF21-0MA1: Rated power is 1.5 kW at 3000 rpm with a continuous torque of 4.78 Nm — this is the thermal limit for S1 duty; the motor holds that torque indefinitely at rated speed without tripping the winding overtemperature, provided the ambient stays within the IP65 enclosure rating. The absolute encoder is single-turn 21-bit, meaning it resolves 2,097,152 positions per revolution and retains the absolute position on power loss within one shaft revolution — no homing cycle needed after a power cycle unless the load moves the shaft beyond one turn while unpowered. Shaft height is 50 mm with a feather key and tolerance N — the keyway is cut to ISO fit tolerance N, which is a normal sliding fit for the key in the shaft slot, so the mating hub keyway should be cut to the corresponding ISO fit to avoid backlash or binding.
IP65 and oil seal — where this motor runs
Degree of protection IP65 means the motor body is dust-tight and protected against low-pressure water jets from any direction — suitable for washdown areas in food processing, machine-tool coolant splash, or outdoor cabinets provided the cable gland is also rated IP65. The fitting oil seal at the shaft exit prevents coolant or cutting fluid from wicking along the shaft into the front bearing — a common failure point on unprotected servo motors in machining centres.