SPG785A1 Schematics
1 inch bore tube gearbox on base
1 inch bore tube gearbox with wires running through tube
tube gearbox mounted to channel
(2) 1 inch bore tube gearboxes on base
Tube Gearbox Under
Tube Gearbox on side

 

1,281 oz-in.

 

0.87 sec/60° (3.8:1 ratio)

 Build Your Power Servo

Price:

 $119.98 w/Servo

Part:

 SPG785A1-5

Status:

 

Servo:

 

Ratio:

 

Kit:

 

Qty:

 

* We highly recommend purchasing this unit assembled by our factory.

Introducing the all new patented SPG785A1-5 Servo Power Tube Gearbox. A stock HS-785HB servo can rotate 3.5 turns (1.75 turns left or right from center) or 1260° total. When you install the HS-785HB servo into this tube gearbox, the total amount of rotation is decreased but the power and accuracy is increased. Position feedback remains since the internal potentiometer is not removed. Trading total rotation for power and precision is what this gearbox is all about. Simply choose the gear ratio you need (see chart for ratio specs) along with the amount of rotation your application requires. The lower the gear ratio, the more precision and power you will have but with less rotation. The SPG785A1-5 can handle tremendous side loads with the dual ABEC-5 precision ball bearing supported 1” aluminum hollow shaft. The shaft is hollow to allow wires from cameras, sensors or other devices to not tangle during multi-turn rotations. The frame of the SPG785A1-5 is machined from 6061-T6 aluminum (anodized) and offers our 0.770” hub pattern inline with the output shaft. Patented.

Patented

 SPG785A1-5 Servo

Rotation

Weight
(No Servo)

4.8V Power
(ounce-inch)

6.0V Power
(ounce-inch)

4.8V Speed
(sec/60°)

6.0V Speed
(sec/60°)

HS-785HB (3.8:1 ratio)

332°

9.4 oz.

581.4

695.4

1.06 sec.

.874 sec.

HS-785HB (7:1 ratio)

180°

9.5 oz.

1,071

1,281

1.96 sec.

1.61 sec.

The hub gear utilizes the 1.50” pattern.

The framework utilizes the 0.770” pattern.

Tube Gearbox with Can
Tube Gearbox sideview
ServoCity video - click to play
Closed Loop - Click here to learn more

 The shaft is hollow to allow wires from cameras, sensors or other devices to not tangle during multi-turn rotations.

770 pattern
1.50 pattern
Tube and Bottom Mount Gearbox
Tube Gearbox with End Cap

Want to attach this gearbox to a another gearbox? Use an Aluminum End Cap (sold separately).

End Cap

2 gearboxes attached by tubing and clamp hubs
1 inch bore tube gearbox with channel and tubing
tube gearbox mounted to channel 2

Use the aluminum end cap to attach the gearbox directly to our channel.

Shown mounted to the aluminum Round Base A.

When used with tubing you can easily feed the wires through the tubes for a clean structure.

Copyright 1999-2013 Robotzone, LLC. - All Rights Reserved
ServoCity is a registered trademark of Robotzone, LLC.

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SPG785A1-5 Servo Gearbox
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