Could this unit control a stepper motor used on a heavy duty telescope mount for star tracking? It would push/pull approx. 30 lbs.

This is a motor, not a controller. It is on or off. Not a stepper motor.

What attaches to the turning part?

The output shaft of these motors are a 6mm D-shaped shaft with a threaded hole. Unfortunately, I don't know the specification for the threaded hole in the shaft Instead, I used a small aluminum hub, also available here on Amazon: https://www.amazon.com/gp/product/B00B887FX8/ref=ppx_yo_dt_b_asin_title_o04_s03?ie=UTF8&psc=1 That hub comes as a set of 2, with set-screws, and a small Allen wrench, but no other hardware. For that hub, I needed to get some #4-40 machine screws. I used 3/8" machine screws for the thickness of the material I mounted to the hub so that the screws would not protrude through the hub and into the motor mount. There are other 6mm hubs available that should work just as well. However, I selected the one listed above because of positive reviews, and in particular, info indicating that this hub uses 2 set screws which makes it more secure. That info was accurate. And I've found that hub fits and works perfectly for my application. I hope this helped.

What is the ratio of input to output? I'm looking for 30:1 or 60:1

This motor has 1:40 ratio and 1:65 ratio. The 1:40 ratio is 210rpm and 1:65 ratio is 90rpm.

Is there a template available to build a mount?

Lowes has some metal L-brackets that fit the bolt pattern perfectly. Coupled with 3mm screws from Lowes, it mounts easily.

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Bringsmart JGY-370 DC Worm Gear Motor 12 Volt High Torque Mini Turbine Worm 6-24V Reducer Electric Motor Self-locking for Toys (JGY-370 12V 10rpm)

Product ID: 324091579

Details

Brand
Bringsmart
Horsepower
12 Horsepower
Model name
gear
Speed
10 RPM
Voltage
12 Volts

🔋12V rated voltage

⏱️10 RPM rated speed

⚙️22.5 kg·cm torque

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฿2194

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Description

⚙️ Unlock precision power with the JGY-370 – where torque meets control!

SELF LOCKING SAFETY - Innovative self-locking mechanism holds position without power, preventing unwanted movement and enhancing stability.
POWERFUL HIGH TORQUE - Delivers a robust 22.5 kg·cm torque for demanding DIY projects and precision control.
OPTIMIZED SPEED CONTROL - Smooth 10 RPM rated speed ensures reliable, consistent performance for model building and robotics.
VERSATILE VOLTAGE RANGE - Operates efficiently at 12V DC, compatible with a wide range of power sources for flexible applications.
COMPACT DURABLE DESIGN - Metal and steel construction in a sleek 2.5 cm cube form factor fits seamlessly into tight spaces with lasting durability.

The Bringsmart JGY-370 DC Worm Gear Motor is a compact, high-torque 12V electric motor featuring a self-locking worm gear design. With a rated speed of 10 RPM and torque of 22.5 kg·cm, it offers reliable, stable performance ideal for toys, model building, and DIY projects requiring precise motion control. Its durable metal construction and efficient power consumption make it a top choice for professionals and hobbyists alike.

Specifications

ASIN	B078JHVJYL
ASIN	B078JHVJYL
Best Sellers Rank	#93,732 in Toys ( See Top 100 in Toys ) #72 in Model Building Motors
Brand Name	Bringsmart
Customer Reviews	4.5 4.5 out of 5 stars (265)
Customer reviews	4.5 4.5 out of 5 stars (265)
Date First Available	1 February 2018
Horsepower	12 Horsepower
Is Discontinued By Manufacturer	No
Item Dimensions W x H	25W x 25H millimeters
Item Weight	169 Grams
Item model number	JGY-370
Manufacturer	Hugwit Company
Manufacturer	Hugwit Company
Material Type	metal, paper, steel, Paper Steel
Model	JGY-370
Model Name	gear
Part Number	JGY-370
Product Dimensions	2.5 x 2.5 x 2.5 cm; 169 g
Speed	10 RPM
UPC	608651617815
Voltage	12 Volts

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