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Split Roller Chain Sprockets
Split sprockets are quickly becoming more and more popular due to their ease in installation and removal. The majority of our split roller chain sprockets are manufactured in the USA out of our main office and machine facility in central Florida. Some of the benefits that USA Roller Chain and Sprockets offers is our snap-reaction machining lead-time, quality workmanship. Plus, all of our roller chain sprockets feature hardened teeth under 30 tooth count, black oxide coating, and high-quality steel metallurgy for extended performance and durability. Additionally, our split sprockets are machined to have smooth hub edges and no projecting bolts or ears that can be dangerous in operation. We also make split 81X sprockets, welded steel chain sprockets, wastewater sprockets, and many more Engineer Class Sprocket types. Be sure to check out our machine shop at www.usamachineshop.com or come by for a visit/ tour. We ship split roller chain sprockets all around the world and offer express services within the United States for down situations. To get a quote simply give us a call at (407) 347-3519 or email sales@usarollerchain.com and we'll be happy to assist you, we also have a submit form at the bottom of the page for easier requesting.
Please note: If you are emailing us or calling have the following information ready; chain size, tooth count, bore size, hub type (B or C), along with any special modifications or needs on your sprocket.
Split Sprocket Cost Saving
To decide if the split sprocket option is right for you all we need to do is some simple math.Formula:
Split sprocket cost= SP
solid sprocket cost= SL
Labor hours to replace sprocket= LA
Labor cost per hour=LR
LA X LR X 2 + SP= Toal Installed Cost
LA X LR X 2 + SL= Toal Installed Cost
*Multiply by 2 for instal and uninstall*
Example:
The average salary for maintenance crew workers ranges from $16.50/ hr up to $23/ hr. The average labor burden (taxes + benefits) is about 25%, this means our actual direct cost to the company now ranges from $20.63/ hr up to $28.75/ hr. For simplification purposes in our example, we will use the median labor rate of $24/ hr.
The average cost increase of a split sprocket ranges between $90 and $170 for machine work, materials, and hardware. We'll use a median cost of $130.
We will use a solid sprocket/ base sprocket cost of $20 and 4 hours of time to replace or install a solid sprocket and 1/4 hour for a split sprocket. The solid sprocket install time can vary widely depending on what all the install and uninstall entails.
Solid Sprocket: 4-hours X $24 X 2 + $20=$212 total sprocket + maintance cost
Split Sprocket: 0.25 hours X $24 X 2 + $130 + $20=$162 total sprocket + maintance cost
The Diffirence/ Benifits: A $$ amount savings of $50 per sprocket overall and the added benifit of hassle-free maintance, making everyines job easier.
Split Roller Chain Sprocket Types
The two types of split roller chain sprockets are B-hub and C-hub. B-hub sprockets have a hub on one side and are the most common split sprocket configuration. C-hub sprockets have hubs on both sizes, these are more common in larger diameters and for extreme duty applications.
Split Roller Chain Sprocket Manufacturing
The first step for making a split sprocket is to create the bore size (if required).The second step is keying the sprocket, then putting a set-screw or two into it.
Thirdly the sprocket is then machine split into two pieces
Lastly the bolt places and bolts get installed into the sprocket so it can be split and put back into a solid piece.
Split Hubs For Roller Chain Sprockets
In a lot of cases, a split sprocket cost can be decreased with a split hub for roller chain sprockets. This option also makes it easier for a do it yourself type of circumstance which can save you even more on the up-front costs. The S350 - S1000 hubs are made in a way that matches the hubs on our normal split sprockets so like our split sprockets these hubs when assembled have no dangerous projecting bolts or ears. Use the charts below to designate the appropriate split hub needed for your sprocket.Note: B-hub sprockets need one hub and C-hub sprockets need two.
S350 - S1000 Split Hubs:
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Maximum Bore
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Hub Diameter
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Hub Length
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Min. #35 Sprocket Teeth
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Min. #41 Sprocket Teeth
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Min. #40 Sprocket Teeth
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Min. #50 Sprocket Teeth
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Min. #60 Sprocket Teeth
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Min. #80 Sprocket Teeth
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Min. #100 Sprocket Teeth
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Min. #120 Sprocket Teeth
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Min. #140 Sprocket Teeth
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Min. #160 Sprocket Teeth
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Min. #180 Sprocket Teeth
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Min. #200 Sprocket Teeth
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Min. #240 Sprocket Teeth
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1.562" | 3.50" | 2.620" | 37 | 28 | 28 | 24 | 20 | 16 | 14 | 12 | 11 |
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2.062" | 4.00" | 2.620" | 42 | 32 | 32 | 26 | 22 | 17 | 15 | 13 | 12 | 11 |
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2.250" | 4.25" | 2.620" | 44 | 33 | 33 | 28 | 24 | 19 | 16 | 14 | 12 | 11 |
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2.437" | 4.50" | 2.620" | 46 | 35 | 35 | 29 | 25 | 19 | 17 | 14 | 13 | 12 | 11 |
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2.625" | 5.00" | 2.870" |
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38 | 38 | 31 | 27 | 21 | 18 | 15 | 14 | 12 | 12 |
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2.625" | 5.50" | 3.250" |
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34 | 29 | 22 | 19 | 16 | 15 | 13 | 12 | 11 | 10 |
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3.250" | 6.00" | 3.250" |
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36 | 31 | 24 | 20 | 17 | 16 | 14 | 13 | 12 | 11 |
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3.250" | 6.50" | 3.750" |
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33 | 26 | 21 | 18 | 16 | 15 | 14 | 13 | 11 |
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3.625" | 7.00" | 4.250" |
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35 | 27 | 23 | 19 | 17 | 16 | 14 | 13 | 12 |
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4.250" | 8.00" | 4.750" |
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30 | 25 | 21 | 19 | 17 | 16 | 15 | 13 |
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5.125" | 9.00" | 5.250" |
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27 | 24 | 21 | 19 | 17 | 16 | 14 |
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6.000" | 10.00" | 5.250" |
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26 | 23 | 21 | 19 | 18 | 15 |
S1 - S8 Split Hubs:
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Bore Range
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Hub Diameter
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Hub Length
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Bolt Size
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Weight (LBS)
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0.75" - 1.5" | 3.125" | 1" | 3/8" X 2-1/4" | 1.8 |
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1.375" - 2.25" | 4.375" | 1.25" | 1/2" X 3" | 4.1 |
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2" - 3" | 6" | 1.375" | 5/8" X 4-1/2" | 8.4 |
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2.75" - 4" | 7.625" | 1.5" | 3/4" X 5-1/2" | 14.4 |
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3.75" - 5" | 9.25" | 2" | 1" X 6" | 27.8 |
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4.75" - 6" | 10.25" | 2.25" | 1" X 6" | 35.4 |
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5.75" - 7" | 12.5" | 2.5" | 1" X 7" | 64.4 |
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6.25" - 8" | 14.5" | 3" | 1" X 8" | 98.5 |
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Bore Range
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#40
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#50
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#60
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#80
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#100
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#120
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#140
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#160
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#180
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#200
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#240
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| S-1 | 0.75" - 1.5" | 28 | 23 | 20 | 16 |
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| S-2 | 1.375" - 2.25" | 38 | 30 | 26 | 20 | 17 | 15 | 14 |
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| S-3 | 2" - 3" | 46 | 37 | 32 | 25 | 20 | 18 | 16 | 15 | 14 |
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| S-4 | 2.75" - 4" |
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48 | 40 | 30 | 25 | 21 | 19 | 17 | 16 | 15 | 12 |
| S-5 | 3.75" - 5" |
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30 | 25 | 22 | 20 | 18 | 17 | 14 |
| S-6 | 4.75" - 6" |
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32 | 27 | 24 | 22 | 19 | 18 | 15 |
| S-7 | 5.75" - 7" |
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32 | 28 | 25 | 22 | 21 | 18 |
| S-8 | 6.25" - 8" |
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28 | 25 | 23 | 20 |
S1B - S6B Split Hubs:
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Bore Range
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Hub Diameter
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Bolt Size
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Weight (LBS)
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0.75" - 1.5" | 3.125" | 3/8" X 2-1/4" | 1.8 |
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1.375" - 2.25" | 4.375" | 1/2" X 3" | 4 |
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2" - 3" | 6" | 5/8" X 4-1/2" | 8.4 |
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2.75" - 4" | 7.625" | 3/4" X 5-1/2" | 14.4 |
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3.75" - 5" | 9.25" | 1" X 6" | 27.7 |
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4.75" - 6" | 10.25" | 1" X 6-1/2" | 35.4 |
To get a quote on split roller chain sprockets fill out the request for quote form and someone from our customer service team will contact you.
Frequently Asked Questions
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If your order is less than $300, no problem! Please give us a call at 407-347-3519 or email Sales@usarollerchain.com, and we will be happy to assist you!
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USA Roller Chain utilizes an extensive network of vendors and warehouses to ensure you get your items quickly! Our primary roller chain warehouse is located in Clermont, FL, but we have warehouses located all across the United States. Your order will be shipped from the closest warehouse to you that has your requested product in stock. This speeds up transit times and saves you money on shipping! If you have any questions about where an item will ship from, please CONTACT US
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In-stock items are typically shipped out in 1-3 business days.Made-to-order item lead times vary from 1-2 days up to 14-20+ weeks, depending on the product. If you need your items urgently, please let us know, and we will do our best to meet your required delivery date! If you have any questions, please CONTACT US
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If you are having an issue with your order, please CONTACT US as soon as possible so we can resolve it for you.
Most in-stock items can be returned within 30 days of the shipment date. MTO or Custom orders are not eligible for a return or refund. For a detailed explanation of our return policies, please click here.
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Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.