Behind the part number a suffix of “H” is added if one’s teeth are hardened from being heat-treated. If the sprocket can be a QD or taper bushed design the guts letter for the hub designation is changed to represent so.
Regular Sprocket With Finished Bore Example:
Some manufactures may also designate in the component number if the sprocket is produced from a special material. This designation could be placed in the front 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 – Since the bottom diameter (BD) of a sprocket with odd number 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 is the circle accompanied by the centers of the chain pins as 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 point directly over the sprocket. It is comparatively unimportant as the tooth duration is not essential to appropriate 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 over the hub from 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 thickness for proper power. The dimensional allowance must be made for keyway and set screws.
Face Width (T) – Encounter width is limited in its maximum dimension to allow proper clearance to supply for chain engagement and disengagement. The minimal width is bound to provide the proper strength to transport the imposed loads.
Duration 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 procedures 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 train sprockets, and changing them can cost a lot of time and money. Additionally, the functionality of a conveyor or drive depends on sprocket-chain interaction. Using the proper 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 manufactured to perform well under pressure and are long lasting. The roller chain sprockets accessible in our store 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 specifications.
We’re positive you’ll end up being happy when you get industrial chain sprockets inside our store, because they’ll last you a long time. If you’re uncertain what sprockets are the ones you will need for your machine, make sure you don’t hesitate to give us a contact. Our knowledgeable staff, excellent products, and unbeatable prices are the known reasons for our A+ BBB rating!
SINGLE STRAND ROLLER CHAIN SPROCKETS
There are six different standard varieties of sprockets for single strand roller chain. We stock a complete line of each type! Our regular single strand roller chain sprockets are produced with hardened tooth (for tooth counts under 30), used high quality quality SAE 1045 metal material, and are finished 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 feasible accessories needed, then you are ready to get your sprockets! If at any stage you have questions or difficulty finding or picking your sprocket please get in touch with our customer service department and we will be happy to assist you.
DOUBLE SINGLE SPROCKETS
Double one sprockets are designed to run 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 design is available from stock. Our double solitary sprockets are produced with hardened the teeth and have a black oxide coating for excellent performance and hook corrosion resistance. Share sizes of double one sprockets range between ANSI #40 – #160 but additional sizes could be manufactured upon request. We are able to also supply quick reaction custom re-bores and MTO specialty double single sprockets due to our quick response in-house machine shop. Something vital that you note is that despite the fact that these sprockets are double sprockets they will not double-strand roller chain. The charts below display the in-stock double solitary sprocket sizes and 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 background of roller chain sprockets almost every produce utilizes four different types of sprockets and has followed the same nomenclature for them.
STANDARD SPROCKET STYLES
Style A, also referred to as A-Plate or just “plate sprocket” is usually a set sprocket plate-wheel with no hubs that extrude on either side.
Style B, also known as B-Hub sprockets is a sprocket with a hub that extrudes on one side.
Style C, also known as C-Hub sprockets is definitely 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 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 many other styles upon request.
D – Double Roller Chain Sprockets/ Duplex Sprockets
E – 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 part parallel to each other)
COMMON SPROCKET STYLES
QD design sprockets, also known as “quick detachable” make use of a tapered bushing that is bolted in to the bore that’s machined in the sprocket. When the bushing is inserted into the sprocket is certainly 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 grip on the driven shaft.
Shear Pin sprockets make use of a shear pin type hub that is bolted to a sprocket to supply an overload gadget. If the torque rating is exceeded the shear gadget disengages the sprocket from the drive.
Split type roller chain sprockets are manufactured for quick installation without 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 the teeth the sprocket has. If the sprocket is usually multi strand there will frequently be considered a letter prefix at the beginning of the part quantity.