China Hot selling Double Pitch Hollow Pin Conveyor Chain Gk1 Great quality

Product Description


ISO Chain No. ANSI P bone d2 d3 L Lc
Chain No.
mm mm mm mm mm mm
C208A C2040 25.40 7.85 3.96 4.1 16.6 18.8
C208AL C2042
C210A C2050 31.75 9.forty five.08 5.1 20.7 23.3
C210AL C2052
C212A C2060 38.ten twelve.57 5.ninety four 6.1 twenty five.9 28.three
C212AL C2062
C212AH C2060H 38.10 12.fifty seven 5.94 29.2 31.6
C212AHL C2062H
C216A C2080 50.eighty 15.seventy five 7.ninety two 36.five
C216AL C2082
C216AH C2080H 50.eighty 15.75 7.92 36.two 39.four
C216AHL C2082H
C220A C2100 63.50 eighteen.90 nine.fifty three forty.four 44.7
C220AL C2102
C220AH C2100H 63.50 18.ninety 9.fifty three 10.1 43.6 46.nine
C220AHL C2102H

The impact of dress in on a roller chain is to increase the pitch (spacing of the backlinks), triggering the chain to grow for a longer time. Note that this is thanks to wear at the pivoting pins and bushes, not from true stretching of the metallic (as does come about to some versatile steel components this sort of as the hand-brake cable of a motor car).
With modern day chains it is unusual for a chain (other than that of a bicycle) to dress in till it breaks, because a worn chain leads to the quick onset of use on the teeth of the sprockets, with supreme failure currently being the loss of all the enamel on the sprocket. The sprockets (in specific the scaled-down of the two) suffer a grinding motion that places a characteristic hook condition into the driven face of the enamel. (This effect is created even worse by a chain improperly tensioned, but is unavoidable no subject what care is taken). The worn enamel (and chain) no longer provides sleek transmission of energy and this could become apparent from the sound, the vibration or (in vehicle engines utilizing a timing chain) the variation in ignition timing noticed with a timing light. The two sprockets and chain should be changed in these instances, given that a new chain on worn sprockets will not final prolonged. Even so, in significantly less serious instances it could be feasible to preserve the more substantial of the two sprockets, considering that it is always the smaller 1 that suffers the most use. Only in very light-bodyweight applications such as a bicycle, or in excessive instances of poor tension, will the chain generally bounce off the sprockets.

The lengthening because of to wear of a chain is calculated by the subsequent formulation:

M = the length of a number of links calculated

S = the amount of backlinks measured

P = Pitch

In market, it is typical to check the movement of the chain tensioner (whether guide or automated) or the precise length of a drive chain (one particular rule of thumb is to substitute a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center push). A simpler strategy, notably appropriate for the cycle or motorbike person, is to attempt to pull the chain absent from the bigger of the two sprockets, while making sure the chain is taut. Any important movement (e.g. generating it attainable to see by means of a gap) probably indicates a chain worn up to and outside of the restrict. Sprocket injury will result if the difficulty is ignored. Sprocket wear cancels this result, and may mask chain wear.


The light-weight chain of a bicycle with derailleur gears can snap (or relatively, arrive aside at the facet-plates, because it is regular for the “riveting” to are unsuccessful 1st) since the pins within are not cylindrical, they are barrel-shaped. Make contact with in between the pin and the bushing is not the typical line, but a point which enables the chain’s pins to function its way through the bushing, and lastly the roller, ultimately causing the chain to snap. This type of design is essential due to the fact the equipment-altering motion of this kind of transmission needs the chain to the two bend sideways and to twist, but this can happen with the adaptability of such a narrow chain and relatively big cost-free lengths on a bicycle.

Chain failure is considerably significantly less of a problem on hub-geared systems (e.g. Bendix 2-speed, Sturmey-Archer AW) because the parallel pins have a much greater donning surface area in get in touch with with the bush. The hub-gear program also makes it possible for complete enclosure, a great help to lubrication and defense from grit.

CHAIN Toughness

The most widespread measure of roller chain’s sCZPT is tensile toughness. Tensile sCZPT represents how significantly load a chain can stand up to under a one-time load ahead of breaking. Just as important as tensile sCZPT is a chain’s fatigue power. The crucial elements in a chain’s exhaustion sCZPT is the good quality of steel utilised to manufacture the chain, the warmth treatment of the chain components, the high quality of the pitch hole fabrication of the linkplates, and the sort of shot additionally the depth of shot peen protection on the linkplates. Other variables can consist of the thickness of the linkplates and the layout (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous travel is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile energy, depending on the sort of master back links employed (press-match vs. slip-in shape)[quotation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely by way of linkplate tiredness failure.

The standard minimum greatest sCZPT of the ANSI 29.1 metal chain is twelve,five hundred x (pitch, in inches)two. X-ring and O-Ring chains tremendously decrease put on by means of interior lubricants, growing chain lifestyle. The interior lubrication is inserted by means of a vacuum when riveting the chain collectively.


Specifications businesses (this sort of as ANSI and ISO) preserve requirements for design and style, proportions, and interchangeability of transmission chains. For illustration, the subsequent Table exhibits data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) designed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for added info.

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

ASME/ANSI B29.1-2011 Roller Chain Standard Dimensions
Dimension Pitch Highest Roller Diameter Bare minimum Greatest Tensile Energy Measuring Load
twenty five .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) .two hundred in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
forty one .five hundred in (12.70 mm) .306 in (7.77 mm) 1,five hundred lb (680 kg) eighteen lb (8.2 kg)
forty .five hundred in (twelve.70 mm) .312 in (7.92 mm) 3,one hundred twenty five lb (1,417 kg) 31 lb (14 kg)
fifty .625 in (15.88 mm) .four hundred in (ten.sixteen mm) four,880 lb (2,210 kg) forty nine lb (22 kg)
sixty .750 in (19.05 mm) .469 in (11.ninety one mm) 7,030 lb (3,one hundred ninety kg) 70 lb (32 kg)
80 1.000 in (twenty five.forty mm) .625 in (15.88 mm) 12,500 lb (5,700 kg) one hundred twenty five lb (fifty seven kg)
one hundred 1.250 in (31.75 mm) .750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) .875 in (22.23 mm) 28,a hundred twenty five lb (twelve,757 kg) 281 lb (127 kg)
a hundred and forty one.750 in (44.forty five mm) 1.000 in (twenty five.forty mm) 38,280 lb (seventeen,360 kg) 383 lb (174 kg)
160 2.000 in (fifty.80 mm) 1.a hundred twenty five in (28.fifty eight mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
one hundred eighty 2.250 in (fifty seven.fifteen mm) one.460 in (37.08 mm) sixty three,280 lb (28,700 kg) 633 lb (287 kg)
two hundred 2.500 in (63.fifty mm) 1.562 in (39.67 mm) seventy eight,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) one.875 in (47.sixty three mm) 112,500 lb (51,000 kg) one,000 lb (450 kg

For mnemonic reasons, below is one more presentation of essential dimensions from the very same normal, expressed in fractions of an inch (which was element of the contemplating guiding the choice of preferred figures in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain quantity
Width (inches)
1four twoeight twofive one8
38 threeeight threefive threesixteen
1two four8 4one one4
onetwo four8 four five16
five8 58 5 three8
three4 six8 6 onetwo
one 8eight eight fiveeight

1. The pitch is the distance between roller centers. The width is the distance between the website link plates (i.e. a bit far more than the roller width to enable for clearance).
2. The appropriate-hand digit of the common denotes 0 = regular chain, 1 = light-weight chain, 5 = rollerless bushing chain.
3. The remaining-hand digit denotes the number of eighths of an inch that make up the pitch.
four. An “H” pursuing the regular variety denotes heavyweight chain. A hyphenated amount pursuing the normal number denotes double-strand (2), triple-strand (3), and so on. As a result 60H-3 denotes number sixty heavyweight triple-strand chain.
 A standard bicycle chain (for derailleur gears) utilizes slender 1⁄2-inch-pitch chain. The width of the chain is variable, and does not have an effect on the load ability. The much more sprockets at the rear wheel (historically 3-6, nowadays 7-twelve sprockets), the narrower the chain. Chains are bought in accordance to the variety of speeds they are designed to perform with, for case in point, “ten pace chain”. Hub gear or single pace bicycles use 1/2″ x 1/8″ chains, exactly where 1/8″ refers to the greatest thickness of a sprocket that can be utilized with the chain.

Typically chains with parallel formed links have an even number of links, with every slim website link adopted by a broad 1. Chains created up with a uniform type of link, slender at one particular and broad at the other end, can be produced with an odd quantity of backlinks, which can be an advantage to adapt to a special chainwheel-distance on the other facet this sort of a chain tends to be not so robust.

Roller chains manufactured using ISO standard are at times known as as isochains.

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one.     CZPT Quality Assurance Program
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3.     Bespoke Remedies from Highly Seasoned Specialists 
4.     Customization and OEM Available for Specific Software
five.     Extensive Stock of Spare Elements and Accessories
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The 219 sets of superior computerized generation products supply ensures for large product high quality. The 167 engineers and technicians with senior expert titles can design and create merchandise to fulfill the specific requires of buyers, and OEM customizations are also offered with us. Our sound global service network can provide clients with timely after-product sales technical services.

We are not just a producer and provider, but also an sector specialist. We operate pro-actively with you to provide expert guidance and item tips in buy to finish up with a most cost successful product offered for your certain application. The clientele we serve worldwide selection from stop users to distributors and OEMs. Our OEM replacements can be substituted anywhere essential and appropriate for equally mend and new assemblies.


Uncover the roller chain at EP, which has a wider midsection plate to support carry heavier loads on conveyor belts, wire rod machines, printing presses and many other industrial purposes. Roller chains are totally interchangeable and pre-lubricated to aid decrease elongation. Decide on single or riveted chains with zinc and aluminum coatings to assist stop rust and chemical corrosion.

China Hot selling Double Pitch Hollow Pin Conveyor Chain Gk1     Great quality