Product Description:

Kollmorgen manufactures the D101A-93-1215-001, a rotary motor in the DDR Direct Drive Motors series. The unit is intended for mounting directly to the driven load, eliminating couplings and gear trains in pick-and-place tables, indexing rings, and other automation axes that demand high stiffness and zero backlash. A straight-through bore with face coupling allows services or mechanical shafts to pass through the rotor, while the frameless layout and single-bearing arrangement reduce overall envelope depth in compact machinery.

The motor delivers a continuous torque of 40.7 N-m at 40 °C, allowing steady operation under thermal equilibrium. During short-duty bursts, it can reach a top speed of 300 rpm and withstand a peak torque of 129 N-m for fast acceleration. An axial compression rating of 5300 kg protects the bearing system when the load is clamped against the motor face. Motion smoothness is aided by a rotor inertia of 0.0693 kg-m², balancing responsiveness with load matching. Position feedback is provided by a resolver; its ±135 arc-second accuracy and ±2.4 arc-second repeatability support fine interpolation. The motor uses an 11.19 in outside-diameter frame with a short rotor stack, and the single bearing supports that layout while the shaft’s straight-bore profile simplifies coupling to large-diameter tooling.

An environmental seal of IP65 prevents dust ingress and water jets from reaching internal windings, letting the motor work in washdown cells or cutting fluid environments. Total mass is 31.5 kg, which contributes to thermal capacity and helps damp vibration when the motor is bolted to machine frames. The resolver generates a digital position word of 134,217,728 counts/rev, supplying the drive with very fine position resolution for precise low-speed movement. At standstill, static friction adds 3.5 N-m to the available holding torque, which helps support vertical axes without an external brake.