Behind the part quantity a suffix of “H” is added if one’s teeth are hardened from being heat-treated. If the sprocket is certainly a QD or taper bushed style the guts letter for the hub designation is definitely changed to represent so.
Standard Sprocket With Finished Bore Example:
Some manufactures will also designate in the part number if the sprocket is manufactured from a special material. This designation could be placed in the front of the part number or behind, if it’s noted.
Bottom Diameter (BD) – This is the measurement of the diameter of a circle tangent to the bottoms of the tooth spaces.
Caliper Diameter – Since the bottom level 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 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 because 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 across the sprocket. It really is comparatively unimportant as the tooth duration is not vital to correct meshing to with the chain. The outside diameter may vary based on the type of cutter used. OD=(pitch)(0.6+COT[180/nT])
Hub Diameter (H) – May be the distance across the hub from one side to another. 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 thickness for proper power. The dimensional allowance must be designed for keyway and arranged screws.
Face Width (T) – Encounter width is bound in its maximum dimension to permit proper clearance to provide 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 an extended enough crucial 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 may bring your machinery to a grinding halt. Many devices can’t operate without their drive train sprockets, and changing them can cost a lot of time and cash. Additionally, the overall performance of a conveyor or drive depends upon sprocket-chain conversation. Using the proper sprocket is simply as important as choosing the right chain. At Ever-power Roller Chain, we provide a wide selection of standard roller chain sprockets at unbeatable prices. Our sprockets are manufactured to execute well under pressure and so are long lasting. 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 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 will be the ones you need for your machine, make sure you don’t hesitate to give us a contact. Our knowledgeable staff, superior items, 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 share a complete line of each type! Our standard single strand roller chain sprockets are produced with hardened tooth (for tooth counts under 30), used superior quality SAE 1045 steel material, and are finished with black-oxide for corrosion resistance.
To start out shopping simply choose what chain size you are using with your sprocket. Next choose the type needed, lastly select the preferred tooth count and possible accessories needed, then you are ready to obtain your sprockets! If at any point you have questions or trouble finding or picking your sprocket please get in touch with our customer support department and we’ll be happy to assist you.
DOUBLE SINGLE SPROCKETS
Double solitary sprockets are made to operate two single-strand type roller chains, this is where the name “double single” originated from. Typically these sprockets are A design but both BTB taper bushed and QD design is available from stock. Our double one sprockets are produced with hardened tooth and have a dark oxide coating for excellent performance and a slight corrosion resistance. Stock sizes of double one sprockets range from ANSI #40 – #160 but additional sizes could be manufactured upon ask for. We can also supply quick response custom re-bores and MTO specialized double single sprockets because of our quick response in-house machine shop. Something vital that you note is that despite the fact that these sprockets are double sprockets they’ll not double-strand roller chain. The charts below show the in-stock dual single sprocket sizes and have clickable links to the merchandise pages themselves.
ROLLER CHAIN SPROCKET NOMENCLATURE
Different sprocket manufactures utilize different “conditions” or nomenclature to describe their sprockets. Though, throughout the general background of roller chain sprockets nearly every manufacture utilizes four various kinds of sprockets and has used the same nomenclature for them.
STANDARD SPROCKET STYLES
Style A, also called A-Plate or just “plate sprocket” is certainly a flat sprocket plate-wheel with no hubs that extrude on 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 definitely 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 past 4-strands. We supply single through twelve (12) strand roller chain sprockets in the four standard styles in addition to various other styles upon request.
D – Double Roller Chain Sprockets/ Duplex Sprockets
Electronic – Triple Roller Chain Sprockets/ Triplex Sprockets
F – 4 Strand Sprockets/ Quadruple Sprockets
DS – Double One (these sprockets are made to run two single-strands of roller chain part parallel to each other)
COMMON SPROCKET STYLES
QD design sprockets, also known as “quick detachable” make use of a tapered bushing that’s bolted into the bore that is machined in the sprocket. When the bushing can be inserted into the sprocket is usually 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 provides 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 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 manufactured for quick installation with no 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 can be multi strand there will most often be considered a letter prefix at the start of the part quantity.