? on specs for stepper motors

Robotics
1

Hello,

I would like to know about the difference in capabilities between the "Stepper Motor with Cable

ROB-09238" and the “Small Stepper Motor ROB-10551”. The spec sheets don’t seem to parallel completely, so it’s challenging to understand their contrasting capabilities (if any).

Background: I’m a non-engineer running a store for an engineering department, we carry both of these motors, I’m trying to determine whether we actually need to carry both.

Posting the most pertinent specs…

ROB-10551

Current : 400mA

Resistance: 34 Ω ±10% (product page)

DC Resistance 4Ω/phase±10%(25℃) (spec sheet)

2-Phase Rated Voltage : 12V Rated

In-traction Torque : 100 g/cm

ROB-09238

CURRENT 0.33A (330mA)

INDUCTANCE 46 20% Mh (Assuming 46Ω)

Winding resistance: 32.6 Ω (product page)

RESISTANCE: 34 ±10% (spec sheet)

Rated Voltage : 12V

Winding inductance: 48 mH

Maximum Detent Torque: 0.016 N.M

Total friction (kg.m/s): 4 Kg.m/s

Holding Torque : 2.3kg*cm

Any insights would be appreciated!

2

The more expensive one (09238) is more capable in just about every way they are used (higher precision, stronger, more/standard mounting holes) - I can’t say whether you should carry one or both, but perhaps feedback from folks and/or the curriculum can help shape that

Here’s a good info article on the basic differences found in stepper motors https://learn.adafruit.com/all-about-st … pper-motor

3

Thanks much! I appreciate it!