SPG645A-BM-CR Continuous Rotation

(Shown with optional 5:1 metal gears)

Shown with 6” ABS Disc

Shown with DDT560 Tilt System

Shown with DDT500 Tilt System

Given a 1500usec PWM, rotation will stop. Any signal between 1505usec to 1100usec or 1495usec- to 900usec will make the servo rotate variable rpm to the PWM signal. IE: A signal closest to 1500usec, the servo will rotated slowly. A signal further from 1500usec the servo will rotate faster.

Four 5-40 tapped holes in the mounting hub allows for various attachments.

Longer shafts can easily be used

Dual precision ball bearings support the 3/8” shaft from the top and the bottom.

Shown with SPT400A and 13.5:1 ratio

Build Your Power Servo
Price:	Starting at $91.48 w/Servo
Part:	SPG645A-BM-CR
Status:
Servo:
Ratio:
Kit:
Qty:

1,795 oz-in. of torque and unlimited rotation from a standard $31.99 servo....easily done with the all new SPG645A-BM-CR (Bottom Mount) Servo Power Gearbox. The all new structure is machined from high-strength 6061-T6 aluminum. The hardened 3/8” stainless steel final 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 shaft is hollow (.290” hole) to allow wires to pass through. With six optional gear ratios, you are sure to find the right combination of power and speed for your project although the gear ratios can easily be changed. Mounting various attachments is simple with the four 5-40 tapped holes in the aluminum clamp hub. Mounting tabs are .125” thick. Build your own custom SPG645A-BM-CR by choosing the ratio you need in assembled or kit form (full instructions included). Patented

* 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

SPG645A-BM-CR	Maximum Rotation	Weight (with Servo)	4.8V Power (ounce-inch)	6.0V Power (ounce-inch)	4.8V Speed (sec/60°)	6.0V Speed (sec/60°)
HS-645MG (2:1 ratio)	Unlimited	11.2 oz.	214	266	.48 sec.	.40 sec.
HS-645MG (3:1 ratio)	Unlimited	11.2 oz.	321	399	.72 sec.	.60 sec.
HS-645MG (4:1 ratio)	Unlimited	11.2 oz.	428	532	.96 sec.	.80 sec.
HS-645MG (5:1 ratio)	Unlimited	11.2 oz.	535	665	1.20 sec.	1.00 sec.
HS-645MG (8.6:1 ratio)	Unlimited	12.6 oz.	920	1,143	2.06 sec.	1.72 sec.
HS-645MG (13.5:1 ratio)	Unlimited	15.5 oz.	1,444	1,795	3.24 sec.	2.70 sec.