XSM115-58-504-M-2AA Kollmorgen
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The Kollmorgen XSM115-58-504-M-2AA is a servo motor from the XSM Centurion Servo Motors series with a frame size of 115 and an 8-pole count. It delivers a motor speed of 5000 RPM with a torque output of 58 in-lb. This motor has a 24 Volt brake and multiturn feedback, and is rated for 460 Volts with a dielectric rating of 2350 VAC.
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Product Description:
The XSM115-58-504-M-2AA is a permanent-magnet servo motor produced by Kollmorgen for the XSM Centurion Servo Motors series. It belongs to the Centurion product group and is sized for mid-frame machinery where precise velocity and position control are needed. In automated cells, the motor couples directly to gearboxes, ball screws, or timing pulleys, translating drive commands into tightly regulated shaft motion for pick-and-place stations, indexing tables, and coordinated multi-axis lines.
The motor is equipped with a 24-volt brake that clamps the shaft whenever control power is removed, preventing load drift on vertical axes. A dielectric strength of 2350 VAC insulates the windings from the laminated core and housing, allowing the stator to withstand high voltages and surge events on the plant floor. Its frame size is designated as 115, providing a square flange pattern that fits standard IEC mountings without adapters. Integrated multi-turn feedback reports the absolute shaft position over multiple revolutions, eliminating homing sequences after a power loss. The rated shaft speed reaches 5000 rpm, providing sufficient mechanical margin for servo loops that demand high traverse rates while remaining below critical vibration points.
An 8-pole rotor increases torque density and lowers the electrical frequency requirements for the associated drive. Continuous stall torque is rated at 58 in-lb, allowing the motor to hold fixtures or maintain web tension without active cooling. The motor has a torque constant of 0.83 Nm/A, so drive sizing can be calculated directly from application load data. Dynamic performance is supported by a phase inductance of 13 mH, which filters current ripple and contributes to smooth motion at low speeds. A winding resistance of 2.4 Ω, a voltage constant of 100 V/krpm, and a nominal bus rating of 460 V align the motor with common industrial inverters. The smooth shaft has no keyway, simplifying installation with clamping hubs while minimizing stress concentrations.
