What type of shaft does this have? What types of couplings can be used with it?

The shaft on the one I just bought is 14mm dia x 30mm long and has a 5mm keyway and key.

How many rpm is this motor?

This is a stepping motor. The shafts of these motors "step" through discrete positions under the control of a stepping motor drive. The 'drive' is an electronic assembly that receives digital input signals to control the speed and direction of motor steps. So, shaft speed is not a fixed value, as it might be with an AC induction motor. Maximum available shaft speed is affected by details of the load that's connected to the motor. Take a look at the Wikipedia article "stepper motor".

What is the max rpm ?

It's complicated; there isn't a single answer to this question. These motors are a very good solution for motion and position control, but max RPM is highly dependent upon the connected load, and to some extent also upon the drive electronics. See the Wikipedia "stepper motor" article as a good starting point for understanding these kinds of motors.

Where is the data sheet for this motor? The wiring diagram doesn’t even show +\- - how did anyone even hook this up?

There are two sets of coils in the slipper motor. Two wires for each set. You can short the wires and see if the motor feels hard to turn. If so that would be one set.

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Nema 34 Stepper Motor 6A 12Nm (1700 oz-in) 156mm Length for CNC Router Mill Lathe

Product ID: 64212368

Details

Brand
Horsepower
0.8 hp
Material
Copper
Speed
50000 rpm
Voltage
48 volts 500

📏156mm compact length

🔋6.2A rated current

⚙️12Nm holding torque

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Description

⚙️ Unleash CNC mastery with torque that means business!

BUILT TO ENDURE - Operates reliably from -20°C to +50°C, perfect for demanding environments
CURRENT CHAMPION - 6.2A rated current ensures consistent, powerful motor drive
COMPACT YET MIGHTY - Sleek 156mm length fits seamlessly into your high-performance setups
POWERHOUSE PRECISION - Delivers a robust 12Nm (1700 oz-in) torque for flawless CNC control
PRECISION ENGINEERING - 1.8° step angle with 5% accuracy for ultra-smooth, exact movements

The Nema 34 Stepper Motor by HobbyUnlimited offers a commanding 12Nm holding torque and a compact 156mm frame, powered by a 6.2A current rating. Engineered for precision with a 1.8° step angle and 5% accuracy, it excels in CNC routers, mills, and lathes. Built to perform reliably across a wide temperature range, this motor is the go-to choice for professionals demanding power and precision in their machining projects.

Specifications

ASIN	B077XHBTZ9
Best Sellers Rank	#629,305 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #697 in Electrical Motor Controls
Brand Name	HobbyUnlimited
Customer Reviews	4.4 4.4 out of 5 stars (25)
Horsepower	0.8 hp
Item Weight	5.2 kg
Manufacturer	HobbyUnlimited
Material Type	Copper
Speed	50000 rpm
UPC	636824685705
Voltage	48 volts, 500 volts

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216822CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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