Product Description:

The 00-01202-071 is a flat-armature DC motor built by Kollmorgen for the ServoDisc Pancake DC Motors series. Its disc-style rotor shortens the axial length while lowering inertia, making the unit suitable for semiconductor handlers, optical scanners, and other automation axes that demand a fast torque rise in minimal space. The frameless configuration allows the rotor to be clamped directly to the driven member, eliminating couplings and keeping the overall height low. A printed copper coil on a glass-epoxy substrate further reduces inductance, supporting high current slew rates in servo loops.

The motor delivers a continuous output of 128 oz-in at 25 °C when the stator remains within normal ambient limits. At that load, it draws 8.8 A, which the drive electronics must accommodate without excessive voltage sag. Mechanical power reaches 284 W when the shaft runs at 3000 rpm with a bus voltage of 43.4 V. Internal copper losses are affected by a terminal resistance of 0.750 Ω, while a back EMF gradient of 11.55 V/krpm provides a signal that varies linearly with speed. If the ambient temperature rises to 40 °C, the continuous rating decreases to 114 oz-in because the winding has less thermal margin. Stall torque is 122 oz-in, indicating the available torque when the rotor is stationary. The motor produces no cogging torque, which supports smooth low-speed positioning, and its 5.50-inch by 2.10-inch housing fits into shallow machine cavities.

For short bursts, the rotor can generate 1316 oz-in of peak torque, allowing rapid acceleration or fast indexing without exceeding short-term thermal limits. The maximum speed reaches 6000 rpm, providing substantial speed overhead above the nominal operating point. Each ampere of motor current contributes 15.63 oz-in/A of torque, allowing current-mode drives to estimate shaft load from commanded amperage. Despite these high dynamic values, the assembly weighs only 8.0 lb, easing integration on moving carriages or gantry axes and reducing the load carried by the supporting structure. The absence of cogging helps the rotor move smoothly through small position changes. The high torque constant also supports responsive velocity regulation across the motor’s operating range.