Behind the part number a suffix of “H” is added if the teeth are hardened from being heat-treated. If the sprocket is definitely a QD or taper bushed style the center letter for the hub designation is usually changed to represent so.
Standard Sprocket With Finished Bore Example:
Some manufactures may also designate in the part quantity if the sprocket is produced from a special material. This designation can be placed in leading of the part quantity 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 can’t be measured directly, caliper diameters are the measurement across the tooth spaces nearly opposite.
Pitch Diameter (PD) – The diameter across to the pitch circle which may be 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 outside diameter is the measurement from the tip of the sprocket tooth across to the corresponding stage directly over the sprocket. It really is comparatively unimportant as the tooth length is not essential 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) – May be the distance across the hub in one side to another. This diameter must not go beyond the calculated diameter of the inside of the chain sidebars.
Optimum Sprocket Bore – This dimension is determined by the required hub wall structure thickness for proper strength. The dimensional allowance should be designed for keyway and established screws.
Face Width (T) – Face width is bound in its maximum dimension to permit proper clearance to provide for chain engagement and disengagement. The minimum width is limited to provide the proper strength to transport the imposed loads.
Duration Thru Bore (L) – The length thru bore must be sufficient to allow a long enough crucial to withstand the torque transmitted by the shaft. This also actions 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 train sprockets, and replacing them can cost lots of time and money. Additionally, the functionality of a conveyor or drive depends on sprocket-chain interaction. Using the right sprocket is just as important as deciding on the best chain. At Ever-power Roller Chain, we provide a wide selection of regular roller chain sprockets at unbeatable prices. Our sprockets are designed to execute well under pressure and so are long lasting. The roller chain sprockets for sale in our store include single-strand roller chain sprockets, dual strand sprockets and multi-strand roller chain sprockets. Furthermore, our drive chain sprockets fulfill both ANSI and ASME specifications.
We’re positive you’ll become happy when you buy industrial chain sprockets inside our shop, because they’ll last you a long time. If you’re uncertain what sprockets are the ones you need for your machine, please don’t hesitate to provide us a call. Our knowledgeable staff, excellent items, and unbeatable prices are the reasons for our A+ BBB ranking!
SINGLE 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 regular solitary strand roller chain sprockets are produced with hardened teeth (for tooth counts under 30), used superior 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 choose the type needed, finally select the desired tooth count and possible accessories needed, then you are ready to obtain your sprockets! If at any point you have queries or problems finding or selecting your sprocket please contact our customer service department and we’ll be happy to help you.
DOUBLE SINGLE SPROCKETS
Double solitary sprockets are designed to run two single-strand type roller chains, this is 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 share. Our double single sprockets are manufactured with hardened teeth and have a black oxide coating for superior performance and a slight corrosion resistance. Stock sizes of double single sprockets range between ANSI #40 – #160 but additional sizes could be manufactured upon request. We can also supply quick reaction 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 dual sprockets they’ll not double-strand roller chain. The charts below show the in-stock dual one sprocket sizes and have clickable links to the merchandise pages themselves.
ROLLER CHAIN SPROCKET NOMENCLATURE
Different sprocket manufactures use different “conditions” or nomenclature to describe 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 referred to as A-Plate or simply “plate sprocket” can be a set sprocket plate-wheel without hubs that extrude upon either side.
Style B, also known as B-Hub sprockets is a sprocket with a hub that extrudes on one side.
Style C, also referred to 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 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 and also several other styles upon request.
D – Dual Roller Chain Sprockets/ Duplex Sprockets
E – Triple Roller Chain Sprockets/ Triplex Sprockets
F – 4 Strand Sprockets/ Quadruple Sprockets
DS – Double Solitary (these sprockets are made to run two single-strands of roller chain part parallel to one another)
COMMON SPROCKET STYLES
QD style sprockets, also known as “quick detachable” utilize a tapered bushing that’s bolted into the bore that is machined in the sprocket. When the bushing is usually inserted into the sprocket is definitely 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 grasp on the driven shaft.
Shear Pin sprockets make use of a shear pin type hub that’s bolted to a sprocket to provide an overload gadget. If the torque ranking is usually 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 component number, standardly the chain pitch will be written first, then your hub design or code, and followed by the number of tooth the sprocket has. If the sprocket is multi strand there will most often be a letter prefix at the beginning of the part amount.