Data Sheet

RB-Sct-540
7:1 Unlimited Rotation Servo Power Gearbox
The 7:1 Unlimited Rotation Servo Power Gearbox provides unlimited rotation and extreme torque. The
gearbox frame is machined from high-strength 6061-T6 aluminum for superior strength and durability.
The hardened stainless steel output shaft is supported by dual ABEC-5 precision ball bearings that
allow extremely smooth operation with load bearing capabilities of up to 200lbs. The hollow output
shaft (.290'' center bore) allows wires to pass through the center axis. The brass hitec pinion gear
meshes to a high-grade 7075 aluminum 32 pitch hub gear which is fastened to the output shaft of the
gearbox with a 3/8'' clamping hub. The brass hitec pinion gear meshes to a high-grade 7075 aluminum
32 pitch hub gear which is fastened to the output shaft of the gearbox with a 3/8'' clamping hub. The .
770'' clamping hub has 6-32 tapped holes which allow easy attachment of various components. The
gearbox can be mounted using the top-mount tabs which are ¼'' thick and have .140'' thru-holes (allows
a #6 screw to be used).
Note: The kit, when assembled, will allow for unlimited (continuous) rotation out of the final shaft.
The assembled unit will operate in open loop form and not have any positioning feedback. The PWM
signal received from the servo controller will determine the servo’s speed and direction rather than
position. If you are not comfortable soldering and handling delicate parts, we would suggest purchasing
a fully assembled Servo Power Gearbox.