China Free Design Custom Industrial Transmission Gear Reducer Conveyor Parts Transmission Conveyor Ware Parts Sharp Top Roller Chains C12b C16b C16A factory

Merchandise Description


Chain No. P h H L
mm mm mm mm
C12B-9571 19.05 thirteen. 21. 19.05
C12B-940 19.05 thirteen.2 22.three 19.seventy five
C16B-1160 25.forty ten.5 27.5 twenty five.forty
C16B-1161 25.40 ten.5 27.five 25.40
C16A-1160 25.forty 18. 29.five 25.forty


Roller chain or bush roller chain is the type of chain travel most generally utilized for transmission of mechanical power on many types of domestic, industrial and agricultural equipment, such as conveyors, wire- and tube-drawing equipment, printing presses, vehicles, motorcycles, and bicycles. It is made up of a series of short cylindrical rollers held together by aspect links. It is driven by a toothed wheel referred to as a sprocket. It is a simple, reputable, and successful means of energy transmission.


Two various sizes of roller chain, showing construction.
There are two varieties of backlinks alternating in the bush roller chain. The first type is inner back links, having two inner plates held together by two sleeves or bushings CZPT which rotate two rollers. Interior back links alternate with the second sort, the outer back links, consisting of two outer plates held jointly by pins passing through the bushings of the internal backlinks. The “bushingless” roller chain is similar in operation however not in building as an alternative of different bushings or sleeves keeping the inner plates collectively, the plate has a tube stamped into it protruding from the hole which serves the very same goal. This has the advantage of removing one particular step in assembly of the chain.

The roller chain design and style reduces friction when compared to simpler patterns, ensuing in larger effectiveness and significantly less wear. The first electricity transmission chain varieties lacked rollers and bushings, with each the internal and outer plates held by pins which right contacted the sprocket enamel nonetheless this configuration exhibited incredibly fast use of equally the sprocket enamel, and the plates exactly where they pivoted on the pins. This problem was partly solved by the advancement of bushed chains, with the pins holding the outer plates passing via bushings or sleeves connecting the inner plates. This distributed the dress in more than a greater spot nonetheless the tooth of the sprockets nevertheless wore a lot more swiftly than is appealing, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and presented rolling make contact with with the enamel of the sprockets resulting in excellent resistance to put on of the two sprockets and chain as effectively. There is even really low friction, as long as the chain is sufficiently lubricated. Steady, cleanse, lubrication of roller chains is of main relevance for efficient procedure as well as correct tensioning.


Many driving chains (for case in point, in factory tools, or driving a camshaft inside an interior combustion engine) work in cleanse environments, and as a result the wearing surfaces (that is, the pins and bushings) are secure from precipitation and airborne grit, many even in a sealed environment this kind of as an oil bathtub. Some roller chains are developed to have o-rings created into the space in between the outside the house hyperlink plate and the inside roller website link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano whilst working for Whitney Chain of Hartford, Connecticut. O-rings were provided as a way to improve lubrication to the hyperlinks of energy transmission chains, a service that is vitally crucial to extending their doing work existence. These rubber fixtures type a barrier that holds manufacturing unit applied lubricating grease within the pin and bushing put on places. Even more, the rubber o-rings stop filth and other contaminants from getting into inside the chain linkages, the place such particles would normally lead to substantial wear.[citation necessary]

There are also numerous chains that have to work in soiled problems, and for dimension or operational factors can not be sealed. Illustrations contain chains on farm gear, bicycles, and chain saws. These chains will necessarily have fairly high rates of use, especially when the operators are geared up to take a lot more friction, much less effectiveness, much more sound and a lot more recurrent replacement as they neglect lubrication and adjustment.

Several oil-based lubricants draw in grime and other particles, ultimately forming an abrasive paste that will compound use on chains. This issue can be circumvented by use of a “dry” PTFE spray, which kinds a solid film right after software and repels each particles and humidity.


Chains working at higher speeds similar to individuals on motorcycles must be employed in conjunction with an oil bathtub. For modern bikes this is not achievable, and most motorbike chains operate unprotected. As a result, motorcycle chains are likely to dress in extremely rapidly relative to other applications. They are topic to intense forces and are exposed to rain, dirt, sand and street salt.

Bike chains are component of the generate train to transmit the motor power to the back wheel. Appropriately lubricated chains can reach an performance of ninety eight% or better in the transmission. Unlubricated chains will substantially reduce overall performance and boost chain and sprocket dress in.

Two types of aftermarket lubricants are accessible for bike chains: spray on lubricants and oil drip feed methods.

Spray lubricants may have wax or PTFE. While these lubricants use tack additives to continue to be on the chain they can also draw in grime and sand from the highway and in excess of time make a grinding paste that accelerates part use.
Oil drip feed techniques continually lubricate the chain and use mild oil that does not stick to the chain. Investigation has revealed that oil drip feed programs provide the finest wear protection and finest electricity preserving.

VARIANTS Design and style

Format of a roller chain: 1. Outer plate, 2. Interior plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being utilized for a high put on software (for instance if it is just transmitting movement from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then one of the less complicated kinds of chain could still be utilised. Conversely, the place added sCZPT but the sleek generate of a smaller pitch is required, the chain may be “siamesed” instead of just two rows of plates on the outer sides of the chain, there might be a few (“duplex”), four (“triplex”), or much more rows of plates running parallel, with bushings and rollers amongst every adjacent pair, and the exact same variety of rows of enamel working in parallel on the sprockets to match. Timing chains on automotive engines, for instance, typically have a number of rows of plates called strands.

Roller chain is created in numerous sizes, the most typical American Countrywide Expectations Institute (ANSI) expectations becoming 40, 50, 60, and 80. The 1st digit(s) reveal the pitch of the chain in eighths of an inch, with the final digit getting 0 for regular chain, 1 for light-weight chain, and 5 for bushed chain with no rollers. As a result, a chain with half-inch pitch would be a #40 whilst a #one hundred sixty sprocket would have tooth spaced 2 inches aside, and so on. Metric pitches are expressed in sixteenths of an inch as a result a metric #8 chain (08B-1) would be equivalent to an ANSI #forty. Most roller chain is produced from simple carbon or alloy metal, but stainless steel is employed in foods processing equipment or other places where lubrication is a problem, and nylon or brass are sometimes witnessed for the same cause.

Roller chain is ordinarily hooked up using a master link (also known as a connecting url), which typically has one particular pin held by a horseshoe clip instead than friction in shape, enabling it to be inserted or eliminated with simple resources. Chain with a removable hyperlink or pin is also acknowledged as cottered chain, which allows the duration of the chain to be adjusted. Fifty percent back links (also acknowledged as offsets) are available and are utilised to enhance the size of the chain by a single roller. Riveted roller chain has the grasp link (also recognized as a connecting hyperlink) “riveted” or mashed on the finishes. These pins are made to be durable and are not detachable.


An instance of two ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are utilised in lower- to mid-pace drives at around 600 to 800 toes per minute nonetheless, at increased speeds, close to 2,000 to 3,000 toes for every minute, V-belts are usually utilised because of to put on and sound troubles.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may possibly call for a chain instrument for elimination and installation. A similar but bigger and as a result more robust chain is employed on most bikes although it is often replaced by either a toothed belt or a shaft generate, which supply lower sound amount and much less maintenance needs.
The excellent majority of automobile engines use roller chains to drive the camshaft(s). Quite large overall performance engines often use equipment drive, and starting in the early sixties toothed belts have been used by some makers.
Chains are also utilised in forklifts employing hydraulic rams as a pulley to elevate and reduce the carriage nevertheless, these chains are not deemed roller chains, but are labeled as elevate or leaf chains.
Chainsaw chopping chains superficially resemble roller chains but are much more carefully connected to leaf chains. They are pushed by projecting generate backlinks which also serve to identify the chain on to the bar.

Sea Harrier FA.2 ZA195 front (chilly) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps uncommon use of a pair of motorcycle chains is in the Harrier Leap Jet, in which a chain drive from an air motor is used to rotate the movable engine nozzles, enabling them to be pointed downwards for hovering flight, or to the rear for typical ahead flight, a system known as Thrust vectoring.

The effect of use on a roller chain is to boost the pitch (spacing of the hyperlinks), causing the chain to increase more time. Note that this is because of to wear at the pivoting pins and bushes, not from genuine stretching of the steel (as does happen to some adaptable metal factors such as the hand-brake cable of a motor motor vehicle).
With modern day chains it is uncommon for a chain (other than that of a bicycle) to dress in till it breaks, because a worn chain qualified prospects to the speedy onset of wear on the teeth of the sprockets, with final failure getting the decline of all the tooth on the sprocket. The sprockets (in distinct the more compact of the two) experience a grinding movement that places a characteristic hook form into the driven experience of the teeth. (This impact is produced even worse by a chain improperly tensioned, but is unavoidable no subject what care is taken). The worn enamel (and chain) no longer supplies sleek transmission of power and this may turn out to be evident from the sounds, the vibration or (in auto engines using a timing chain) the variation in ignition timing observed with a timing gentle. Both sprockets and chain ought to be replaced in these cases, because a new chain on worn sprockets will not final long. Nonetheless, in considerably less significant cases it might be possible to help save the bigger of the two sprockets, because it is usually the more compact one particular that suffers the most put on. Only in very light-weight-fat applications this sort of as a bicycle, or in intense circumstances of poor tension, will the chain typically jump off the sprockets.

The lengthening due to use of a chain is calculated by the adhering to formula:

M = the length of a number of links measured

S = the variety of backlinks measured

P = Pitch

In market, it is common to check the motion of the chain tensioner (no matter whether handbook or computerized) or the precise duration of a drive chain (one particular rule of thumb is to exchange a roller chain which has elongated 3% on an adjustable generate or 1.5% on a fixed-middle push). A simpler technique, particularly appropriate for the cycle or motorbike person, is to endeavor to pull the chain away from the more substantial of the two sprockets, although making certain the chain is taut. Any substantial motion (e.g. producing it achievable to see by means of a gap) most likely suggests a chain worn up to and over and above the limit. Sprocket hurt will result if the difficulty is dismissed. Sprocket wear cancels this effect, and might mask chain put on.


The lightweight chain of a bicycle with derailleur gears can snap (or relatively, appear aside at the side-plates, considering that it is standard for the “riveting” to fall short 1st) simply because the pins inside of are not cylindrical, they are barrel-formed. Make contact with among the pin and the bushing is not the typical line, but a point which makes it possible for the chain’s pins to operate its way by means of the bushing, and finally the roller, in the long run creating the chain to snap. This type of development is necessary due to the fact the gear-altering action of this type of transmission demands the chain to equally bend sideways and to twist, but this can arise with the flexibility of these kinds of a narrow chain and reasonably huge cost-free lengths on a bicycle.

Chain failure is considerably much less of a problem on hub-geared techniques (e.g. Bendix 2-pace, Sturmey-Archer AW) considering that the parallel pins have a much larger putting on surface area in contact with the bush. The hub-gear system also makes it possible for complete enclosure, a great support to lubrication and protection from grit.


The most typical evaluate of roller chain’s sCZPT is tensile power. Tensile sCZPT represents how much load a chain can withstand beneath a one-time load ahead of breaking. Just as essential as tensile sCZPT is a chain’s exhaustion power. The vital elements in a chain’s fatigue sCZPT is the high quality of steel employed to manufacture the chain, the warmth therapy of the chain components, the top quality of the pitch gap fabrication of the linkplates, and the sort of shot plus the depth of shot peen coverage on the linkplates. Other aspects can incorporate the thickness of the linkplates and the style (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous generate is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile energy, depending on the variety of grasp backlinks used (push-suit vs. slip-match)[quotation needed]. Roller chains functioning on a continuous generate over and above these thresholds can and generally do fail prematurely through linkplate fatigue failure.

The standard minimal final sCZPT of the ANSI 29.1 metal chain is twelve,500 x (pitch, in inches)two. X-ring and O-Ring chains drastically reduce put on by indicates of internal lubricants, escalating chain lifestyle. The inner lubrication is inserted by signifies of a vacuum when riveting the chain collectively.


Requirements corporations (this sort of as ANSI and ISO) keep expectations for design and style, proportions, and interchangeability of transmission chains. For example, the following Table exhibits data from ANSI normal B29.1-2011 (Precision Energy Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][ten] for added information.

ASME/ANSI B29.1-2011 Roller Chain Regular SizesSizePitchMaximum Roller DiameterMinimum Supreme Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Normal Measurements
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Power Measuring Load
25 .250 in (6.35 mm) .one hundred thirty in (3.thirty mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 .375 in (9.53 mm) .200 in (5.08 mm) 1,760 lb (800 kg) eighteen lb (8.2 kg)
forty one .five hundred in (12.70 mm) .306 in (7.seventy seven mm) 1,500 lb (680 kg) eighteen lb (8.2 kg)
forty .five hundred in (12.70 mm) .312 in (7.92 mm) 3,one hundred twenty five lb (1,417 kg) 31 lb (14 kg)
50 .625 in (fifteen.88 mm) .400 in (10.sixteen mm) 4,880 lb (2,210 kg) forty nine lb (22 kg)
60 .750 in (19.05 mm) .469 in (11.91 mm) seven,030 lb (3,a hundred ninety kg) 70 lb (32 kg)
eighty one.000 in (25.forty mm) .625 in (fifteen.88 mm) twelve,five hundred lb (5,seven-hundred kg) 125 lb (fifty seven kg)
100 one.250 in (31.75 mm) .750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
one hundred twenty 1.500 in (38.ten mm) .875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
a hundred and forty one.750 in (44.45 mm) 1.000 in (twenty five.40 mm) 38,280 lb (seventeen,360 kg) 383 lb (174 kg)
one hundred sixty 2.000 in (50.eighty mm) 1.a hundred twenty five in (28.58 mm) fifty,000 lb (23,000 kg) 500 lb (230 kg)
a hundred and eighty 2.250 in (fifty seven.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
two hundred two.five hundred in (63.50 mm) one.562 in (39.67 mm) 78,a hundred seventy five lb (35,460 kg) 781 lb (354 kg)
240 three.000 in (seventy six.20 mm) 1.875 in (47.sixty three mm) 112,five hundred lb (fifty one,000 kg) one,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same normal, expressed in fractions of an inch (which was element of the considering guiding the selection of desired quantities in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI common
chain quantity
Width (inches)
onefour twoeight twofive oneeight
3eight threeeight threefive 316
1two 48 fourone 14
12 four8 four 5sixteen
58 5eight five three8
34 6eight six 1two
1 eighteight 8 five8

one. The pitch is the length between roller facilities. The width is the length between the url plates (i.e. a bit a lot more than the roller width to permit for clearance).
two. The appropriate-hand digit of the common denotes 0 = regular chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The still left-hand digit denotes the amount of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number subsequent the normal amount denotes double-strand (2), triple-strand (3), and so on. Therefore 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) makes use of narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not have an effect on the load capability. The more sprockets at the rear wheel (traditionally 3-6, today 7-twelve sprockets), the narrower the chain. Chains are bought according to the variety of speeds they are developed to operate with, for illustration, “10 pace chain”. Hub equipment or single pace bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the highest thickness of a sprocket that can be used with the chain.

Usually chains with parallel shaped hyperlinks have an even amount of backlinks, with each and every slender url followed by a broad one. Chains created up with a uniform sort of url, narrow at one particular and wide at the other conclude, can be made with an odd amount of links, which can be an benefit to adapt to a special chainwheel-distance on the other side this sort of a chain tends to be not so strong.

Roller chains created utilizing ISO common are often named as isochains.

WHY Decide on US 

1.     CZPT High quality Assurance Method
two.     Cutting-Edge Laptop-Controlled CNC Machines
three.     Bespoke Remedies from Highly Experienced Specialists 
four.     Customization and OEM Offered for Certain Software
5.     Extensive Stock of Spare Parts and Add-ons
6.     Well-Created Globally Advertising and marketing Network 
7.     Efficient Soon after-Sale Provider Technique


The 219 sets of superior automated creation products provide assures for substantial product top quality. The 167 engineers and professionals with senior specialist titles can style and build products to meet up with the specific demands of customers, and OEM customizations are also available with us. Our seem international provider network can offer buyers with timely after-product sales technical services.

We are not just a maker and supplier, but also an sector expert. We work professional-actively with you to provide expert advice and item suggestions in purchase to conclude up with a most cost powerful solution accessible for your distinct application. The customers we serve throughout the world selection from conclude users to distributors and OEMs. Our OEM replacements can be substituted wherever needed and suitable for each fix and new assemblies.

Like all of our roller chains, our one-strand roller chains are heat dipped to guarantee 100% lubricated elements and warmth taken care of to enhance put on resistance. Our hot dip lubrication technique assures that each one strand roller chain operates at maximum ability and wear existence for as extended as attainable. EP Chain proudly provides extremely tough single chain roller chains for your comfort. Each and every of our solitary-strand roller chains is preloaded throughout the producing approach, effectively minimizing initial elongation right after you acquire your item. You will uncover our solitary-strand roller chains utilized in a selection of applications, this kind of as the foods business or conveyor belts. At EP Chain, we comprehend that downtime can mean missing organization and profits. Our one-strand roller chains are the lacking link your organization wants to hold equipment and day-to-day operations managing easily.

China Free Design Custom Industrial Transmission Gear Reducer Conveyor Parts Transmission Conveyor Ware Parts Sharp Top Roller Chains C12b C16b C16A     factory