Behind the part number a suffix of “H” is added if the teeth are hardened from being heat-treated. If the sprocket is usually a QD or taper bushed design the center letter for the hub designation is changed to represent so.
Standard Sprocket With Finished Bore Example:
Some manufactures will also designate in the component number if the sprocket is produced from a particular 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 – Because the bottom level diameter (BD) of a sprocket with odd quantity of teeth cannot 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 is the circle accompanied by the centers of the chain pins since the sprocket revolves in mesh with the chain. PD= PITCH/ SIN(180/nT)
Outdoors 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 duration is not vital to appropriate meshing to with the chain. The exterior diameter may vary based on the type of cutter utilized. 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 must not exceed the calculated diameter of the within of the chain sidebars.
Maximum Sprocket Bore – This dimension depends upon the required hub wall structure thickness for proper power. The dimensional allowance must be designed for keyway and established screws.
Face Width (T) – Encounter width is limited in its optimum dimension to allow proper clearance to supply for chain engagement and disengagement. The minimum width is limited to provide the proper strength to carry the imposed loads.
Size Thru Bore (L) – The distance thru bore must be sufficient to allow a long enough important to withstand the torque transmitted by the shaft. This also actions the balance of the sprocket on the shaft.

ANSI-CERTIFIED ROLLER CHAIN SPROCKETS
Industrial chain sprocket breakages can bring your machinery to a grinding halt. Many machines can’t operate without their drive teach sprockets, and replacing them can cost lots of time and cash. Additionally, the overall performance of a conveyor or drive depends upon sprocket-chain interaction. Using the right sprocket is just as important as choosing the right chain. At Ever-power Roller Chain, we provide a wide selection of regular roller chain sprockets at unbeatable prices. Our sprockets are manufactured to perform well under pressure and so are resilient. The roller chain sprockets for sale in our store include single-strand roller chain sprockets, double strand sprockets and multi-strand roller chain sprockets. Furthermore, our drive chain sprockets meet up with both ANSI and ASME requirements.
We’re positive you’ll end up being happy when you get industrial chain sprockets in 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 give us a contact. Our knowledgeable staff, superior items, and unbeatable prices will be the reasons for our A+ BBB rating!
Solitary STRAND ROLLER CHAIN SPROCKETS
There are six different standard styles of sprockets for single strand roller chain. We stock a complete line of each type! Our regular one strand roller chain sprockets are manufactured with hardened the teeth (for tooth counts under 30), used premium quality SAE 1045 steel material, and are finished with black-oxide for corrosion resistance.
To start shopping simply select what chain size you are using with your sprocket. Next select the type needed, finally select the preferred tooth count and possible accessories needed, then you are ready to get your sprockets! If at any stage you have questions or difficulty finding or selecting your sprocket please get in touch with our customer service department and we will be happy to help you.
DOUBLE SINGLE SPROCKETS
Double one sprockets are made to run two single-strand type roller chains, this is where the name “double single” came from. Typically these sprockets are A design but both BTB taper bushed and QD style is available from stock. Our double solitary sprockets are manufactured with hardened teeth and have a black oxide coating for superior performance and a slight corrosion resistance. Stock sizes of double solitary sprockets range from ANSI #40 – #160 but additional sizes could be manufactured upon ask for. We can also supply quick reaction custom re-bores and MTO specialty double single sprockets because of our quick reaction in-house machine shop. Something vital that you note is that even though these sprockets are double sprockets they’ll not double-strand roller chain. The charts below display the in-stock double solitary sprocket sizes and also have clickable links to the product pages themselves.
ROLLER CHAIN SPROCKET NOMENCLATURE
Different sprocket manufactures make use of different “terms” or nomenclature to spell it out their sprockets. Though, throughout the general history of roller chain sprockets almost every manufacture utilizes four different types of sprockets and has used the same nomenclature for them.
STANDARD SPROCKET STYLES
Style A, also called A-Plate or just “plate sprocket” is definitely a set sprocket plate-wheel without hubs that extrude upon either side.
Style B, also referred to as B-Hub sprockets is a sprocket with a hub that extrudes on one side.
Style C, also known as C-Hub sprockets can be 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 will start with a prefix except when past 4-strands. We supply single through twelve (12) strand roller chain sprockets in the four regular styles in addition to several 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 created to run two single-strands of roller chain part parallel to each other)
COMMON SPROCKET STYLES
QD design sprockets, also known as “quick detachable” utilize a tapered bushing that is bolted in to the bore that is machined in the sprocket. When the bushing is inserted into the sprocket is definitely compresses onto the shaft, which gives 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 make use of a shear pin type hub that’s bolted to a sprocket to supply an overload device. If the torque ranking is definitely exceeded the shear device disengages the sprocket from the drive.
Split type roller chain sprockets are produced for quick installation with no disruption of the shaft and alignment.
SPROCKET PART NUMBER NOMENCLATURE
When identifying a sprocket with a component quantity, standardly the chain pitch will be written first, then the hub design or code, and accompanied by the number of teeth the sprocket has. If the sprocket is definitely multi strand there will most often be a letter prefix at the beginning of the part number.