what is the shaft length?

I`m not 100% sure but should be round 19mm

Is this a bipolar stepper?

Yes, you will a good stepper driver to run them

what maximum temperature could this stepper reach without causing damage to the stepper?

I do not know I have had them hot enough that you did not want to put your hands on them for every long and they are still running

Hi guys, i have two questions: what is the rpm of this motor and can i use that in a robot?

I mean, steppers in general don’t have a high rpm. Possibly gear it to fit your needs? You set the rpm via the stepper and controller. You can use anything for everything. How well it works, and if it’s logical, is up to you. If not, a regular dc motor and encoder would work better. Good results require hard work and trial and error. Good luck!

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Nema 23 Stepper Motor 2.8A 1.9Nm (269oz.in) 76mm Length with 8mm Diameter of Shaft for CNC Mill Lathe Route(8mm Shaft)

Product ID: 269517943

Details

Brand
Item weight
1.03 Kilograms
Material
Copper
Product dimensions
6.4W x 7.6H
Voltage
36 Volts

📏76mm compact length

🔩8mm precision shaft

⚙️1.9Nm torque power

416.13 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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416.13 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Description

⚡️ Power your precision projects with the Nema 23 – where strength meets sleek!

DURABLE 8 MM SHAFT - Engineered with a sturdy 8mm diameter shaft for reliable, vibration-free motion control.
PREMIUM COPPER BUILD - Crafted with high-quality copper for superior heat dissipation and long-lasting durability.
OPTIMIZED VOLTAGE RANGE - Supports 24-50VDC with recommended 3.5A+ drivers for consistent, high-speed responsiveness.
POWERFUL PRECISION TORQUE - Delivers a robust 1.9Nm (269oz.in) torque for smooth, high-accuracy CNC operations.
COMPACT EFFICIENT DESIGN - At just 76mm length, fits seamlessly into tight machine builds without compromising performance.

The HobbyUnlimited Nema 23 Stepper Motor offers a potent 1.9Nm torque and a compact 76mm frame, featuring an 8mm shaft designed for CNC mills, lathes, and routers. Built with premium copper and optimized for 24-50VDC operation, it ensures reliable, high-precision motion control for professional-grade machining.

Specifications

ASIN	B07Y81FF3V
Brand	HobbyUnlimited
Brand Name	HobbyUnlimited
Item Dimensions W x H	6.4W x 7.6H centimeters
Item Weight	1.03 Kilograms
Item weight	1.03 Kilograms
Manufacturer	HobbyUnlimited
Material	Copper
Material Type	Copper
Product dimensions	6.4W x 7.6H centimeters
Speed	1.9 RPM
Voltage	36 Volts

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TrustScore 4.5 | 7,300+ reviews

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