SPG785A-5.0 Servo Gearbox

1,573 oz-in.

0.46 sec/60° (2:1 ratio)

SPG785A-5.0	Rotation	Weight (w/Servo)	4.8V Power (ounce-inch)	6.0V Power (ounce-inch)	4.8V Speed (sec/60°)	6.0V Speed (sec/60°)
HS-785HB (2:1 ratio)	630°	7.1 oz.	306	366	.57 sec.	.46 sec.
HS-785HB (3:1 ratio)	420°	7.1 oz.	459	549	.84 sec.	.69 sec.
HS-785HB (4:1 ratio)	315°	7.1 oz.	612	732	1.12 sec.	.92 sec.
HS-785HB (5:1 ratio)	252°	7.1 oz.	765	915	1.40 sec.	1.15 sec.
HS-785HB (8.6:1 ratio)	146°	8.7 oz.	1,315	1,573	2.40 sec.	1.97 sec.

Build Your Power Servo

Price:

Starting at $99.98 w/Servo

Part:

SPG785A-5

Status:

Servo:

Ratio:

Kit:

Qty:

* We highly recommend purchasing this unit assembled by our factory. If you are not accustomed to using a soldering iron or handling delicate parts, please order this product assembled ready to plug into your receiver or servo controller. It is money well spent. Thanks

Introducing the all new patented SPG785A-5.0 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 SPG785A-5.0 can handle tremendous side loads with the dual ABEC-5 precision ball bearing supported hardened 3/8” stainless steel hollow shaft. The shaft is hollow with a .290” inner diameter to allow wires from cameras, sensors or other devices to not tangle during multi-turn rotations. The frame of the SPG785A-4.5 is machined from 6061-T6 aluminum (anodized) and offers our hub pattern inline with the output shaft. Easily mount various attachments to the aluminum hub with four 5-40 tapped holes. Patented.

Attached to an SPG785-BM gearbox

Hollow shaft to pass cables through

Hubs can easily mount to the pivot point as shown (hub not included)

SPT785A-5.0 showing hollow shaft on SPG785A-BM

SPT785A-5.0 with SPG78A-BM & tube upright

Shown above with optional
Nylon / Metal 5:1 Ratio

Servo driven pan/tilt systems are excellent for point and shoot video and still photo applications. High-resolution shots expose a slight stepping motion which is the nature of all hobby servos.