Product Description:

The M-105-A-22-B3S is a brushless rotary motor produced by Kollmorgen and assigned to the M Goldline Servo Motors series. It drives closed-loop axes in packaging, material handling, and small robot joints where repeatable positioning is critical. The unit converts drive current into commanded angular motion through a permanent-magnet rotor. Bayonet connectors simplify cable attachment and help maintain shielding continuity at the connection point. Its sealed housing allows placement near cutting fluids and washdown zones without additional covers, and an internal brake helps hold gravity-loaded shafts during power loss.

The motor provides a continuous stall torque of 1.55 N-m while the winding draws a steady 3 Arms. During acceleration, it can reach a peak stall torque of 4.38 N-m when the current rises momentarily to 9 Arms. This combination gives the matched servo drive room for short bursts of acceleration while maintaining stable thermal behavior in normal operation. Speed-related voltage feedback is produced with a back-EMF constant of 31 Vrms/kRPM, and torque production per ampere follows a constant of 0.512 N-m/Arms. A direct-current resistance of 5.3 Ohms limits steady-state current, and the rotor's electrical behavior is influenced by a 0.000338 kg·m² inertia together with an added brake inertia of 0.00000247 kg·m².

The spring-applied brake delivers 2.3 N-m of holding torque, uses a 24 VDC release signal, and increases the overall length by 38.9 mm. Environmental protection is provided by an IP67 seal set that blocks dust ingress and withstands temporary water immersion. The winding inductance of 28.1 mH works with the drive's current loop to damp switching harmonics, and the bayonet connector helps preserve shielding at the cable interface. The sealed interface also reduces the chance of contamination reaching internal motor components during routine machine cleanup.