SPG400A-CM straight side (200px)
Servo Power Gearbox (250px)
Gearbox with 3 pcs of channel 2
SPG400A-CM top (120px)

Power Servo Kit

Price:

 $59.99

Part:

 SPG400A-CM

Status:

Out of Stock Button 

Ratio:

 

Qty:

 

 

 SPG400A-CM

Maximum Rotation

Weight
(No Servo)

4.8V Power
(ounce-inch)

6.0V Power
(ounce-inch)

4.8V Speed
(sec/60°)

6.0V Speed
(sec/60°)

(2:1 ratio)

180°

3.2 oz.

-servo-

-servo-

-servo-

-servo-

(3:1 ratio)

180°

3.2 oz.

-servo-

-servo-

-servo-

-servo-

(3.8:1 ratio)

180°

3.2 oz.

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-servo-

-servo-

-servo-

(5:1 ratio)

180°

3.2 oz.

-servo-

-servo-

-servo-

-servo-

(7:1 ratio)

180°

3.3 oz.

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Extreme torque from a standard size servo....easily done with the SPG400A-CM Channel Mount Servo Power Gearbox Kit. This device increases the stated torque of your servo by adding another set of final drive gears. By incorporating threaded side mounts you can now easily attach these servo gearboxes to numerous ServoCity products including tubing and channel; making it easier than ever to incorporate a servo power gearbox into a custom pan & tilt, mechanical device, or robotic structure. Utilizing an external potentiometer on the final output shaft the original amount of rotation from the servo remains. The structure is machined from high-strength 6061-T6 anodized aluminum. The hardened 1/2” stainless steel final output shaft is supported by dual ABEC-5 precision ball bearings that not only allow extremely smooth operation but can also support up to 200 pounds of vertical and horizontal load.  The main spur gear is bolted to the drive hub so that all power transfer is direct without the possibility of slipping. With five optional gear ratios, you are sure to find the right combination of torque and speed for your project. Gear ratios can easily be changed if you need to vary the torque or speed.  The SPG400a-CM kit will come with full assembly instructions. Servo not included. Patented.
Note:
The SPG400A-CM kit, when assembled, will allow the final shaft to rotate approximately 90 degrees using a Hitec digital servo with stock programming. To increase the rotation (when using a digital servo) you can use a Hitec servo programmer to re-program the endpoints. Maximum achievable rotation is approximately 180 degrees. If you are not comfortable soldering and handling delicate parts, we would suggest purchasing a fully assembled Servo Power Gearbox.

To figure the torque output use the following formula:
Power Gearbox Torque = Servo Torque x Gear Ratio
Example: An HS-425BB servo that produces 57 in-oz of torque at 6V matched with a 5:1 ratio.

57 X 5 = 285 in-oz in the Servo Power Gearbox

To figure the speed output use the following formula:
Power Gearbox Speed = Servo Speed x Gear Ratio
Example: An HS-425BB servo that goes 60° in .16 seconds at 6V matched with a 5:1 ratio.
.16 X 5 = 60° in .80 seconds in the Servo Power Gearbox

(Shown with optional 7:1 metal gears, servo not included)

Want to try a different gear ratio on your Servo Power Gearbox?

The 3.75” channel piece is the perfect length for the gearbox.
(not included)

Utilizes a .770” hub pattern.

770 pattern
Channel Mount Gearbox pic 2
Gearbox with 3 pcs of channel1
SPG400A-CM side1
Channel Gearbox 3D Drawings
575120 Schematics
Channel gearbox 10
Channel gearbox 8
SPG400A-CM in channel (150px)
Patented
SPG400A-CM bottom (150px)
Channel with gearboxes
Channel gearbox 12
Channel with gearbox
Gearbox in angle channel1

Mounts easily into our aluminum channel using
6-32 screws.

Robotic arm with channel gearboxes
Gearbox on channel end with base1

These gearboxes make it easy to construct robotic arms and other servo powered structures with our channel!

The .770” hub pattern on the output shaft allows for endless attachment possibilities!

585506 - on channel mount gearbox
hub adaptor on gearbox
585506 - on channel mount gearbox 3

A .770 x .770 adaptor comes included with the gearbox and makes it easy to attach other ServoCity components.

Shown with a 90° single angle channel bracket (short)

Ratio

Servo Gear

Servo Gear
 Part Number

Hub Gear

Hub Gear
Part Number

2:1

32T

615290

64T

615194

3:1

24T

615286

72T

615198

3.8:1

20T

615282

76T

615202

5:1

16T

615278

80T

615206

7:1

12T

615274

84T

615210

Actobotics Logo - page

DREAM. DESIGN. BUILD. REPEAT.

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Fig. 9

Fig. 10

Closed Loop - Click here to learn more

Copyright 1999-2014 Robotzone, LLC. - All Rights Reserved
ServoCity is a registered trademark of Robotzone, LLC.

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SPG400A-CM Servo Gearbox
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