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!

Nema 23 Stepper Motor 2 8a 1 9nm 269oz In

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Description

⚡️ Power your CNC projects with precision and reliability!

DURABLE BUILD - Copper windings and quality materials guarantee long-lasting performance
COMPACT EFFICIENT - Sleek 76mm length fits seamlessly into tight machine builds
PRECISION POWERHOUSE - Delivers a robust 1.9Nm (269oz.in) holding torque for flawless CNC control
SMOOTH MOTION CONTROL - 1.8° step angle with 5% accuracy ensures ultra-precise positioning
OPTIMIZED COMPATIBILITY - Ideal for 24-50VDC drivers with 3.5A+ current for maximum efficiency

The Nema 23 Stepper Motor offers a powerful 1.9Nm torque and precise 1.8° step angle in a compact 76mm frame with an 8mm shaft, engineered for professional-grade CNC mills, lathes, and routers. Designed for durability and smooth operation, it supports 24-50VDC drivers with 3.5A+ current, making it a top choice for millennial makers demanding performance and reliability.

Specifications

ASIN	B07Y81FF3V
Best Sellers Rank	#413,162 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #355 in Electrical Motor Controls
Brand	HobbyUnlimited
Brand Name	HobbyUnlimited
Customer Reviews	4.8 out of 5 stars 99 Reviews
Item Dimensions W x H	2.5"W x 3"H
Item Weight	1.03 Kilograms
Manufacturer	HobbyUnlimited
Material	Copper
Material Type	Copper
Product Dimensions	2.5"W x 3"H
Voltage	36 Volts

Reviews

R**L

19.11.2019

K**D

9.02.2025

D**T

27.03.2020

D**O

20.11.2023

M**R

3.03.2024

J**.

31.12.2023

M**N

9.10.2018

A**J

13.10.2019

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