Motor specs that decide the fit
The BEH18MM2023CA6D is a 2 kW servo motor from the Lexium 18 family, delivering 2000 rpm nominal speed and 9.55 Nm continuous stall torque at 380 V three-phase supply. Peak stall torque reaches 28.65 Nm, and the maximum mechanical speed is 3000 rpm — useful for short-duration acceleration or overspeed moves within the drive's limits. Feedback comes from a 23-bit optic multi-turn encoder, giving 8,388,608 counts per revolution absolute position — no homing cycle needed after power loss on multi-turn applications.
Mounting and environmental fit
The 130 mm Asian standard flange with four mounting holes and a 22 mm shaft with parallel key matches common mounting patterns for this frame size — check the pilot diameter and bolt circle against your existing bracket. Overall dimensions: 168.6 mm width, 130 mm height, 174.5 mm depth — the motor is compact for its power class but the depth includes the connector protrusion; measure clearance in the enclosure before committing. Air-cooled with no separate blower — ensure adequate airflow around the motor body in the installation, especially if mounted in a confined space or near heat sources.
Electrical parameters for drive matching
Continuous stall current is 5.84 A, maximum permanent current is 17.51 A at 2 kW — the drive must supply at least this peak current for short-term overloads without tripping. Torque constant is 1.635 Nm/A at 40 °C, and back EMF constant is 110.11 V/krpm — these let the drive calculate actual torque from current and predict bus voltage rise at high speed. The motor has 10 poles, so electrical frequency at 2000 rpm is about 167 Hz — the drive's current loop bandwidth must handle this without phase lag. Maximum axial force is 196 N, maximum radial force is 686 N — stay within these limits when coupling to the load; overhung loads from belt drives or heavy pulleys can exceed the radial rating.