Product Description:

The 9FGHDT DC motor is produced by Kollmorgen within the ServoDisc Pancake DC Motors series. This flat-profile motor uses ironless disc armature technology to deliver quick acceleration in installations where axial space is limited. In automated machinery, it operates as a direct-drive actuator, converting controller-supplied current into continuous rotary motion for precision indexing tables, semiconductor handlers, and other compact motion axes. Its thin package allows mounting close to loads, reducing gearbox requirements and improving system stiffness.

The motor body has a diameter of 4.750 in and a basic length of 2.88 in, so it fits shallow enclosures while still providing a shaft diameter of 0.375 in for coupling to gears or pulleys. The unit has a mass of 3.40 lb, allowing lightweight payload integration on moving carriages. The rotor and bearings can sustain up to 80 lb of axial thrust without exceeding their design limits. Four mounting holes are positioned on a 4.330 in bolt circle, and the face is offset by only 0.75 in from the reference surface. Each mounting hole has a tapped depth of 0.344 in. An optional gearhead adds 1.500 in to the overall stack length.

The shaft bearings support a radial load of up to 70 lb, accommodating belt tension or pinion overhang acting perpendicular to the shaft axis. Dynamic responsiveness results from a rotor inertia of only 0.0082 oz-in-sec², enabling rapid speed changes with modest drive current. The attachment threads are No. 8-32 UNC-2B, matching standard machine screws for panel installation. Power connections use 18 AWG leads, while the built-in tachometer uses lighter 22 AWG wire pairs to preserve signal integrity. The output shaft includes a flat that is 0.03 in deep and 0.688 in long, simplifying clamp-style coupling alignment and helping prevent slippage during torque reversals.