Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: holmeswatson on February 18, 2014, 06:18:00 AM

Title: Wheels for stepper motors 28BYJ-48
Post by: holmeswatson on February 18, 2014, 06:18:00 AM

Hello,

I'm looking for a set of wheels for the motors on my robot (stepper motors 28BYJ-48) Datasheet:http://robocraft.ru/files/datasheet/28BYJ-48.pdf (http://robocraft.ru/files/datasheet/28BYJ-48.pdf)

I can't seem to find any product codes for the wheels I've found on ebay http://www.ebay.co.uk/itm/2-Two-50mm-Wheels-Stepper-Motor-Arduino-Smart-Robot-Car-5mm-Shaft-/181161705138?pt=UK_Computing_Other_Computing_Networking&hash=item2a2e143eb2 (http://www.ebay.co.uk/itm/2-Two-50mm-Wheels-Stepper-Motor-Arduino-Smart-Robot-Car-5mm-Shaft-/181161705138?pt=UK_Computing_Other_Computing_Networking&hash=item2a2e143eb2) maybe because they said they're made specially for them.

I'm looking for them wholesale, as may produce the robot.

Any help or direction is appreciated
Thanks

Title: Re: Wheels for stepper motors 28BYJ-48
Post by: waltr on February 18, 2014, 10:00:54 AM

Contact the seller directly and ask about samples and wholesale pricing.

Title: Re: Wheels for stepper motors 28BYJ-48
Post by: knossos on February 18, 2014, 11:56:10 AM

You can find their contact information here (http://4tronix.co.uk/store/index.php?rt=content/contact) and the wheels you want here (http://4tronix.co.uk/store/index.php?rt=product/product&path=66&product_id=176) to contact them as per Waltr's suggestion.

Title: Re: Wheels for stepper motors 28BYJ-48
Post by: jwatte on February 18, 2014, 12:03:25 PM

Also, if you're trying to sell a robot, you should know that stepper motors are typically not the most robust for robot locomotion. An equal power brushed DC gearmotor with a motor or wheel rotation sensor is likely to cost the same or less, and be more robust.

Title: Re: Wheels for stepper motors 28BYJ-48
Post by: holmeswatson on February 19, 2014, 03:42:28 AM

Thanks for your help. Does anyone know of any other wheels with the same size shaft connector? As the wheels I listed will be a little too dear even in bulk. Does anyone know any good websites with a large range of wheels that trade in wholesale/bulk?

Thanks again

Title: Re: Wheels for stepper motors 28BYJ-48
Post by: knossos on February 19, 2014, 08:26:00 AM

Would these wheels (http://www.pololu.com/product/186) work?  At a price of USD $2.80 per wheel for 50 wheels you probably won't be able to find much cheaper.  They have a slightly nicer wheel (http://www.pololu.com/product/982) for USD $3.25.  Prices are per wheel not per pair.

Title: Re: Wheels for stepper motors 28BYJ-48
Post by: holmeswatson on February 20, 2014, 06:01:05 AM

Thanks knossos, will look into those  :)