Behind the part number a suffix of "H" is added if the teeth are hardened from being heat-treated. If the sprocket can be a QD or taper bushed design the center letter for the hub designation can be changed to represent therefore.
Regular Sprocket With Finished Bore Example:
Some manufactures will also designate in the part number if the sprocket is manufactured from a particular material. This designation could be placed in leading of the part quantity 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 quantity of teeth cannot be measured directly, caliper diameters are the measurement across the tooth spaces almost 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)
Outdoors Diameter (OD) The outside diameter may be the measurement from the tip of the sprocket tooth across to the corresponding stage directly across the sprocket. It really is comparatively unimportant as the tooth length is not vital to proper meshing to with the chain. The exterior diameter may vary depending on the kind of cutter used. OD=(pitch)(0.6+COT[180/nT])
Hub Diameter (H) - May be 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.
Optimum Sprocket Bore - This dimension depends upon the required hub wall thickness for proper strength. The dimensional allowance should be designed for keyway and set screws.
Face Width (T) - Face width is bound in its optimum dimension to permit proper clearance to provide for chain engagement and disengagement. The minimum width is limited to provide the proper strength to carry the imposed loads.
Length Thru Bore (L) - The length thru bore must be sufficient to allow an extended enough key 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 machines can’t operate without their drive train sprockets, and changing them can cost a lot of time and cash. Additionally, the functionality of a conveyor or drive depends on sprocket-chain interaction. Using the proper sprocket is just as important as choosing the right chain. At Ever-power Roller Chain, we offer a wide selection of regular roller chain sprockets at unbeatable prices. Our sprockets are designed to perform well under pressure and are long lasting. The roller chain sprockets accessible in our shop include single-strand roller chain sprockets, double strand sprockets and multi-strand roller chain sprockets. Furthermore, our drive chain sprockets satisfy both ANSI and ASME criteria.
We’re positive you’ll become happy when you buy 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 provide us a contact. Our knowledgeable staff, excellent items, and unbeatable prices will be the reasons for our A+ BBB rating!
Solitary STRAND ROLLER CHAIN SPROCKETS
There are six different standard varieties of sprockets for single strand roller chain. We share a complete line of each type! Our regular single strand roller chain sprockets are produced with hardened teeth (for tooth counts under 30), used high quality quality SAE 1045 metal material, and are finished with black-oxide for corrosion resistance.
To start shopping simply choose what chain size you are employing with your sprocket. Following 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 questions or problems finding or selecting your sprocket please get in touch with 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, that's where the name "dual single" originated from. Typically these sprockets certainly are a design but both BTB taper bushed and QD style is available from share. Our double one sprockets are manufactured with hardened teeth and have a dark oxide coating for superior performance and a slight corrosion resistance. Share sizes of double single sprockets range between ANSI #40 - #160 but additional sizes can be manufactured upon ask for. We are able to also supply quick response custom re-bores and MTO specialized double single sprockets due to our quick response in-house machine store. Something important to note is that despite the fact that these sprockets are double sprockets they will not double-strand roller chain. The charts below show the in-stock double solitary sprocket sizes and also have clickable links to the product 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 almost every produce utilizes four different types of sprockets and has used the same nomenclature for them.
STANDARD SPROCKET STYLES
Style A, also called A-Plate or simply "plate sprocket" can be 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 using one side.
Style C, also called C-Hub sprockets can be a sprocket with a hub that extrudes on both sides.
Style D, is a sprocket with a detachable bolt-on hub mounted on 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 in addition to many other styles upon request.
D - Double Roller Chain Sprockets/ Duplex Sprockets
Electronic - Triple Roller Chain Sprockets/ Triplex Sprockets
F - Four Strand Sprockets/ Quadruple Sprockets
DS - Double Single (these sprockets are created to operate two single-strands of roller chain side parallel to one another)
COMMON SPROCKET STYLES
QD design sprockets, also known as "quick detachable" utilize a tapered bushing that's bolted in to the bore that's machined in the sprocket. When the bushing is definitely inserted in to 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 delivers 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 certainly exceeded the shear device disengages the sprocket from the drive.
Split type roller chain sprockets are manufactured for quick installation with out 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 style 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 start of the part amount.