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4050-Series Sprockets
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4050-Series Sprockets

4050 series engineer class sprocket is used for a wide verity of chain sizes. These sizes include RS4050 and SS1265R size chains. These sprockets are typically supplied as cast material but we can also supply them as steel for longer operation. The below chart shows the standard tooth counts as well as dimensions for each size. To get a quote on the sprocket or chain please contact us or fill out the below request form and we will be happy to assist you.


Sprocket Size Tooth Count Pitch Diameter Style Hub Diameter (d) (L) Pin Style















Requesting 4050-Series Sprockets

To get a quote on 4050-Series Sprocket simply fill out the request for quote from and someone from our customer service team will contact you. Please note that if you don't see the sprocket size you need above send us an email or give us a call.


Company Name:
Contact Name:
Email Address:
Phone Number:
Sprocket Size:
Chain Size:
Tooth Count:
Hub Type (A-plate, B-Hub, C-Hub, other):
Length Thru Bore:
Bore Size/ Type (plain, finished w/ key-way & set screws, or other):
Preferred Material (steel, cast, or other):
Quantity Needed:

Additional Information or Notes:


Please enter the following code into the box provided:
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Frequently Asked Questions

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  • All our products are subject to quality control.

    Our warranty provides a guarantee against manufacturer defects.

    The guarantee covers any manufacturing, design, or material defect. Please notify us within 2 months of noticing any defects.

    It does not cover blows, improper use, or other issues that are not attributable to a manufacturer defects.

  • Yes, we offer full and partial refunds.

    Please enquire for more information about our Refund policy.

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