Behind the part quantity a suffix of “H” is added if the teeth are hardened from being heat-treated. If the sprocket is certainly a QD or taper bushed design the guts letter for the hub designation is certainly changed to represent therefore.
Standard Sprocket With Finished Bore Example:
Some manufactures will also designate in the part amount if the sprocket is produced from a special material. This designation can be placed in the front of the part amount or behind, if it’s noted.
Bottom Diameter (BD) – This is actually the measurement of the diameter of a circle tangent to the bottoms of the tooth areas.
Caliper Diameter – Since the bottom diameter (BD) of a sprocket with odd number of teeth can’t be measured directly, caliper diameters will be the measurement over the tooth spaces almost opposite.
Pitch Diameter (PD) – The diameter across to the pitch circle which may be the circle followed by the centers of the chain pins as the sprocket revolves in mesh with the chain. PD= PITCH/ SIN(180/nT)
Outside Diameter (OD) The exterior diameter is the measurement from the tip of the sprocket tooth across to the corresponding point directly over the sprocket. It really is comparatively unimportant as the tooth size is not essential to appropriate meshing to with the chain. The outside diameter may vary based on the kind of cutter used. OD=(pitch)(0.6+COT[180/nT])
Hub Diameter (H) – May be the distance over the hub from one side to some other. This diameter should never surpass the calculated diameter of the within of the chain sidebars.
Maximum Sprocket Bore – This dimension is determined by the required hub wall structure thickness for proper strength. The dimensional allowance must be designed for keyway and set screws.
Face Width (T) – Encounter width is limited in its maximum dimension to permit proper clearance to supply for chain engagement and disengagement. The minimal width is limited to provide the correct strength to transport the imposed loads.
Length Thru Bore (L) – The space thru bore must be sufficient to allow a long enough key to withstand the torque transmitted by the shaft. This also steps the stability of the sprocket on the shaft.

ANSI-CERTIFIED ROLLER CHAIN SPROCKETS
Industrial chain sprocket breakages may bring your machinery to a grinding halt. Many machines can’t operate without their drive train sprockets, and replacing them can cost lots of time and money. Additionally, the functionality of a conveyor or drive depends on sprocket-chain conversation. Using the right sprocket is just as important as choosing the right chain. At Ever-power Roller Chain, we offer a wide selection of regular roller chain sprockets at unbeatable prices. Our sprockets are manufactured to execute well under pressure and so are resilient. The roller chain sprockets accessible in our shop include single-strand roller chain sprockets, dual strand sprockets and multi-strand roller chain sprockets. Furthermore, our drive chain sprockets meet both ANSI and ASME requirements.
We’re positive you’ll become happy when you get industrial chain sprockets inside our shop, because they’ll last you quite a long time. If you’re not sure what sprockets will be the ones you need for your machine, please don’t hesitate to provide us a contact. Our knowledgeable staff, superior items, and unbeatable prices will be the reasons for our A+ BBB rating!
One STRAND ROLLER CHAIN SPROCKETS
There are six different standard varieties of sprockets for single strand roller chain. We share a complete line of each type! Our regular solitary strand roller chain sprockets are manufactured with hardened the teeth (for tooth counts under 30), used high quality quality SAE 1045 metal material, and are completed with black-oxide for corrosion level of resistance.
To start shopping simply choose what chain size you are employing with your sprocket. Following select the type needed, lastly select the preferred tooth count and feasible accessories needed, then you are ready to get your sprockets! If at any point you have questions or difficulty finding or picking your sprocket please contact our customer service department and we will be happy to help you.
DOUBLE SINGLE SPROCKETS
Double one sprockets are designed to run two single-strand type roller chains, that’s where the name “double single” came from. Typically these sprockets certainly are a style but both BTB taper bushed and QD style is available from stock. Our double single sprockets are manufactured with hardened teeth and have a dark oxide coating for excellent performance and hook corrosion resistance. Share sizes of double one sprockets range between ANSI #40 – #160 but additional sizes can be manufactured upon request. We can also supply quick reaction custom re-bores and MTO specialized double single sprockets due to our quick response in-house machine shop. Something important to note is that even though these sprockets are double sprockets they will not double-strand roller chain. The charts below show the in-stock double single sprocket sizes and also have clickable links to the product pages themselves.
ROLLER CHAIN SPROCKET NOMENCLATURE
Different sprocket manufactures make use of different “conditions” or nomenclature to describe their sprockets. Though, throughout the general background of roller chain sprockets almost every produce utilizes four different types of sprockets and has used the same nomenclature for them.
STANDARD SPROCKET STYLES
Style A, also known as A-Plate or simply “plate sprocket” is a flat sprocket plate-wheel with no hubs that extrude on either side.
Style B, also known as B-Hub sprockets is a sprocket with a hub that extrudes using one side.
Style C, also known as C-Hub sprockets is definitely a sprocket with a hub that extrudes on both sides.
Design D, is a sprocket with a detachable bolt-on hub mounted on a plate.
MULTI-STRAND ROLLER CHAIN SPROCKETS
Multi strand roller chain sprockets begins with a prefix except when past 4-strands. We supply single through twelve (12) strand roller chain sprockets in the four standard styles and also several other styles upon request.
D – Dual Roller Chain Sprockets/ Duplex Sprockets
E – Triple Roller Chain Sprockets/ Triplex Sprockets
F – Four Strand Sprockets/ Quadruple Sprockets
DS – Double Solitary (these sprockets are created to run two single-strands of roller chain part parallel to one another)
COMMON SPROCKET STYLES
QD design sprockets, also referred to as “quick detachable” utilize a tapered bushing that is bolted into the bore that is machined in the sprocket. When the bushing is usually inserted into the sprocket is compresses onto the shaft, which provides a tight grip.
Taper Bushed sprockets, commonly designated with TL, BTL, CTL, TB, BTB, or CTB is another design of interchangeable bushed sprockets that provides a positive grip on the driven shaft.
Shear Pin sprockets use a shear pin type hub that is bolted to a sprocket to provide an overload device. If the torque ranking is exceeded the shear gadget disengages the sprocket from the drive.
Split type roller chain sprockets are produced for quick installation with out disruption of the shaft and alignment.
SPROCKET PART NUMBER NOMENCLATURE
When identifying a sprocket with a part quantity, standardly the chain pitch will be written first, then the hub style or code, and accompanied by the number of teeth the sprocket has. If the sprocket is usually multi strand there will most often be a letter prefix at the start of the part amount.