Product Description:

The RBE-03011-A00 is a frameless brushless rotary motor kit produced by Kollmorgen in the RBE Rotary Motors series. It is meant for direct integration into mechanical assemblies such as gimbals, indexing tables, and semiconductor tools, supplying electromagnetic torque without the bulk of a housed motor. In an automation axis, this rotor-stator pair provides smooth rotation while allowing the assembly to use bearings, feedback devices, and housing elements suited to the machine.

During steady-state operation, the kit can deliver a continuous stall torque of 5.06 N-m with only 7.30 A of phase current. At the rated operating point, it turns at 2230 rpm and outputs 832 W of mechanical power. Torque per ampere is reflected by its 0.725 N-m/A sensitivity, enabling predictable closed-loop current control. Low cogging torque of 0.140 N-m helps minimize speed ripple in precision processes, while a phase resistance of 1.23 Ohm affects voltage requirements for the selected drive. The thermal path from the winding to the mounting flange has a resistance of 1.32 °C/W, allowing temperature calculations for forced-air or conduction cooling.

When the axis must accelerate or overcome transient loads, the motor can reach a peak torque of 32.2 N-m and safely spin up to 8300 rpm without mechanical damage. Dynamic voltage feedback is governed by a back-electromotive-force constant of 75.9 V/KRPM, so the servo drive must be sized for regenerated energy at high speed. The phase inductance is 3.3 mH, providing sufficient electrical smoothing to keep current ripple low. A motor constant of 0.653 N-m/√W links thermal input to torque output, and the 12-pole design improves torque density while keeping the fundamental electrical frequency moderate. With a rotor inertia of 4.80 × 10⁻⁴ kg·m² and an overall frameless weight of 2.43 kg, the kit is suitable for light moving axes that demand fast response.