Behind the part number a suffix of “H” is added if one’s teeth are hardened from being heat-treated. If the sprocket is a QD or taper bushed style the center letter for the hub designation is changed to represent so.
Standard Sprocket With Finished Bore Example:
Some manufactures may 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 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 areas.
Caliper Diameter – Since the bottom diameter (BD) of a sprocket with odd number of teeth cannot 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 is the circle accompanied by the centers of the chain pins because the sprocket revolves in mesh with the chain. PD= PITCH/ SIN(180/nT)
Outdoors Diameter (OD) The outside diameter may be the measurement from the tip of the sprocket tooth across to the corresponding point directly across the sprocket. It is comparatively unimportant as the tooth size is not essential to appropriate meshing to with the chain. The exterior diameter may vary based on the kind of cutter utilized. OD=(pitch)(0.6+COT[180/nT])
Hub Diameter (H) – Is the distance across the hub in one side to some other. This diameter should never surpass the calculated diameter of the inside of the chain sidebars.
Optimum Sprocket Bore – This dimension depends upon the required hub wall structure thickness for proper power. The dimensional allowance must be made for keyway and established screws.
Face Width (T) – Encounter width is bound 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 transport the imposed loads.
Size 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 steps 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 changing them can cost lots of time and cash. Additionally, the efficiency of a conveyor or drive depends on sprocket-chain conversation. Using the proper sprocket is simply as important as deciding on the best chain. At Ever-power Roller Chain, we offer a wide selection of standard roller chain sprockets at unbeatable prices. Our sprockets are designed to perform well under pressure and are resilient. The roller chain sprockets for sale in our shop include single-strand roller chain sprockets, double strand sprockets and multi-strand roller chain sprockets. Furthermore, our drive chain sprockets fulfill both ANSI and ASME criteria.
We’re positive you’ll become 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 call. Our knowledgeable staff, superior items, and unbeatable prices are 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 share a complete line of each type! Our regular one strand roller chain sprockets are manufactured with hardened teeth (for tooth counts under 30), used premium quality SAE 1045 metal material, and are completed with black-oxide for corrosion level of resistance.
To start out shopping simply choose what chain size you are employing with your sprocket. Next choose the type needed, lastly select the desired tooth count and possible accessories needed, you then are ready to obtain your sprockets! If at any stage you have queries or trouble finding or selecting your sprocket please contact our customer service department and we’ll be happy to help you.
DOUBLE SINGLE SPROCKETS
Double single sprockets are created to operate two single-strand type roller chains, this is where the name “double single” originated from. Typically these sprockets certainly are a design but both BTB taper bushed and QD style is available from share. Our double single sprockets are manufactured with hardened the teeth and have a black oxide coating for excellent performance and hook corrosion resistance. Share sizes of double single sprockets range between ANSI #40 – #160 but additional sizes could be manufactured upon demand. We can also supply quick reaction custom re-bores and MTO specialty double single sprockets due to our quick reaction in-house machine shop. 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 double single sprocket sizes and also have clickable links to the merchandise pages themselves.
ROLLER CHAIN SPROCKET NOMENCLATURE
Different sprocket manufactures utilize different “terms” or nomenclature to spell it out their sprockets. Though, throughout the 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 usually a set sprocket plate-wheel without hubs that extrude upon either side.
Style B, also called 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 will start with a prefix except when previous 4-strands. We supply single through twelve (12) strand roller chain sprockets in the four regular styles along with 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 One (these sprockets are made to run two single-strands of roller chain side parallel to one another)
COMMON SPROCKET STYLES
QD style sprockets, also referred to as “quick detachable” make use of a tapered bushing that is bolted into the bore that’s machined in the sprocket. When the bushing is inserted in to the sprocket is compresses onto the shaft, which gives 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 use a shear pin type hub that is 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 component number, 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 multi strand there will frequently be considered a letter prefix at the beginning of the part quantity.