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 center letter for the hub designation is usually changed to represent therefore.
Standard Sprocket With Finished Bore Example:
Some manufactures may also designate in the part quantity if the sprocket is manufactured from a particular material. This designation could be placed in leading of the part number or behind, if it is noted.
Bottom Diameter (BD) – This is the measurement of the diameter of a circle tangent to the bottoms of the tooth spaces.
Caliper Diameter – Because the bottom level diameter (BD) of a sprocket with odd amount of teeth can’t be measured directly, caliper diameters will be the measurement across the tooth spaces nearly opposite.
Pitch Diameter (PD) – The diameter across to the pitch circle which may be the circle followed by the centers of the chain pins because the sprocket revolves in mesh with the chain. PD= PITCH/ SIN(180/nT)
Outside Diameter (OD) The exterior diameter may be the measurement from the end of the sprocket tooth across to the corresponding stage directly across the sprocket. It is comparatively unimportant as the tooth size is not vital to correct meshing to with the chain. The exterior diameter may vary depending on the kind of cutter utilized. OD=(pitch)(0.6+COT[180/nT])
Hub Diameter (H) – Is the distance over the hub in one side to some other. This diameter must not 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 should be made for keyway and arranged screws.
Face Width (T) – Face width is bound in its optimum dimension to permit proper clearance to provide for chain engagement and disengagement. The minimal width is limited to provide the correct strength to carry the imposed loads.
Length Thru Bore (L) – The length thru bore must be sufficient to allow an extended enough essential to withstand the torque transmitted by the shaft. This also measures the stability of the sprocket on the shaft.

ANSI-CERTIFIED ROLLER CHAIN SPROCKETS
Industrial chain sprocket breakages can bring your machinery to a grinding halt. Many devices can’t operate without their drive teach sprockets, and replacing them can cost a lot of time and cash. Additionally, the performance of a conveyor or drive depends on sprocket-chain conversation. Using the right sprocket is simply as important as selecting the most appropriate chain. At Ever-power Roller Chain, we provide 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 for sale 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 criteria.
We’re positive you’ll end up being happy when you get industrial chain sprockets in our shop, because they’ll last you a long time. If you’re not sure what sprockets are the ones you will need for your machine, please don’t hesitate to give us a contact. Our knowledgeable staff, superior products, and unbeatable prices will be the known reasons for our A+ BBB ranking!
One STRAND ROLLER CHAIN SPROCKETS
There are six different standard styles of sprockets for single strand roller chain. We stock a complete type of each type! Our standard solitary strand roller chain sprockets are manufactured with hardened tooth (for tooth counts under 30), used superior quality SAE 1045 steel material, and are completed with black-oxide for corrosion level of resistance.
To start out shopping simply select what chain size you are using with your sprocket. Following select the type needed, lastly select the preferred tooth count and possible accessories needed, you then are ready to get your sprockets! If at any point you have questions or problems finding or selecting your sprocket please contact our customer support department and we will be happy to help you.
DOUBLE SINGLE SPROCKETS
Double single sprockets are made to operate two single-strand type roller chains, that’s where the name “dual single” came from. Typically these sprockets are A style but both BTB taper bushed and QD style is available from stock. Our double one sprockets are produced with hardened teeth and have a dark oxide coating for superior performance and hook corrosion resistance. Stock sizes of double single sprockets range from ANSI #40 – #160 but additional sizes can be manufactured upon ask for. We can also supply quick response custom re-bores and MTO specialty double single sprockets because of our quick reaction in-house machine store. Something important to note is that even though these sprockets are double sprockets they’ll 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, through the entire general history of roller chain sprockets nearly every manufacture utilizes four various kinds of sprockets and has adopted the same nomenclature for them.
STANDARD SPROCKET STYLES
Style A, also known as A-Plate or simply “plate sprocket” is definitely a flat sprocket plate-wheel without hubs that extrude on either side.
Style B, also referred to as B-Hub sprockets is a sprocket with a hub that extrudes using one side.
Style C, also referred to as C-Hub sprockets is a sprocket with a hub that extrudes on both sides.
Style D, is a sprocket with a detachable bolt-on hub attached to a plate.
MULTI-STRAND ROLLER CHAIN SPROCKETS
Multi strand roller chain sprockets begins with a prefix except when previous 4-strands. We supply single through twelve (12) strand roller chain sprockets in the four regular styles as well as various other styles upon request.
D – Dual Roller Chain Sprockets/ Duplex Sprockets
Electronic – Triple Roller Chain Sprockets/ Triplex Sprockets
F – Four Strand Sprockets/ Quadruple Sprockets
DS – Double One (these sprockets are made to operate two single-strands of roller chain aspect parallel to each other)
COMMON SPROCKET STYLES
QD design sprockets, also called “quick detachable” use a tapered bushing that’s bolted into the bore that is machined in the sprocket. When the bushing is usually inserted in to 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 style of interchangeable bushed sprockets that delivers a positive hold on the driven shaft.
Shear Pin sprockets use a shear pin type hub that’s bolted to a sprocket to provide an overload device. If the torque ranking is usually exceeded the shear device 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 amount, standardly the chain pitch will be created first, then the hub design or code, and followed by the number of teeth the sprocket has. If the sprocket can be multi strand there will most often be a letter prefix at the start of the part number.