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#25 Drive Sprocket - 1/4" and 5/16" Bores

#25 Drive Sprocket - 1/4" and 5/16" Bores

$10.95 USD
$10.95 USD
Sale Sold out
Title
These sprockets are great for adding to the shaft of a motor to make something move. The drive sprocket will pair with a #25 roller chain.

For the best resolution of motion, you will want the fewest number of teeth. This will cause a slower motion, but with higher precision, and this is the drive sprocket that fits 1/4" shafts with the fewest number of teeth. The number of teeth on this drive sprocket is (9) nine. There are two set screws that hold the drive sprocket in place and these are #10 UNC (Unified national coarse) thread type.


The bore (Inside Diameter) is 1/4" so this drive sprocket will fit most NEMA 23 or 24 motors. The pitch from tooth to tooth is 1/4" (.25 inches). Multiply the pitch with the number of teeth to get the pitch diameter (the distance it will travel with one turn.

The sprocket has only 9 teeth with .25" pitch for a total of 2.25 inches of travel in one turn of the motor. That's 1422.222 steps per inch with 1/16 microstepping and the standard 200 steps per revolution.

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Instructions

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Step 1
Basic information on sprockets and roller chain. This video explains the uses of drive sprockets and idler sprocket and goes into some details of the geometry of the sprockets, how they work and various configuration that can be used with sprockets and roller chain. Information on calculating the steps per inch is also explained.

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    The CO2 laser tubes that we sell have an output light wavelength of 10500 nm (nanometer). Our goggles provide protection for this wavelength of light.

  • Received the bluechick today. Inventory shows I am missing 1/4" bearing #339 and 4 each 1/4" set screws #360-10536. What do I do to get them replaced? Thanks. Lml

    You need to either call us or email us, and provide the name you used when you ordered, so that we can find your order, as well as what parts you are missing.

  • Hello - I am having trouble understanding the instructions for the wiring of the Blacktooth CNC machine, especially the last sentence in instruction 2. Is there a circuit diagram somewhere? Another part of the instructions refers to a wiring diagram at the "end of the instructions". I can't seem to find this. Hope you can help...cheers

    You can find the wiring diagrams for the blackTooth on step 105 and 106 on the list of instructions on the blackTooth page. Step 105 pertains to the parallel breakout board and step 106 pertains to the USB interface board. Additional Information: wire size

  • I need a 3/8" ID Drive Sprocket (9 teeth) --> However all that is shown as available is a 1/4" ID Drive Sprocket (9 teeth)

    If you are referring to ANSI #25 specification (1/4" Pitch), we can offer 3/8" bore sprockets with a minimum of 12 teeth. If this is a part that you would like, please let us know by calling the number at the very top of the page. Additional Information: Additional Information: Additional Information: