China manufacturer Conveyor Belt Parts Transmission Gearbox China Manufacturer High-Intensity and High Precision and Wear Resistance Motorcycle Chains with Great quality

Solution Description

SMCC are 1 professional  industry rollor chain factory ,  We have stamping, heat treatment method, sorting, synthesis and other innovative generation equipment.The business offers a number of massive precision innovative equipments, mordern techniques for cess and precision devices, so as to insure the excellent high quality of our rollor chains.Our rollor chains are extensively used in bike, blend harvester, metallurgical equipment, mining products, automatic creation line. We are the greatest suppliers of Chinese biggest palletizing robot enterprises. And exchange Japan, ZheJiang exported to Europe, The usa, Asia and other nations and areas.

Basic INFO 
SMCC roller chain is 1 of the most commonly employed and welcome items in the market place. Its constant revolutionary development is appropriate to be the remedies for many situations, common roller chains, bike driving chain, O-ring motorbike chain, higher energy roller chain, conveyor chains, agricultural driving chain, galvanized chain, nickel-plated chain, lubrication-free of charge chain and oilfield chain and many others.

Chain No.
Chain No. Pitch P
Roller diameter
Width among inner plates
Pin diameter
Pin duration Inner plate depth
Plate thickness
Tensile energy
Average tensile power
Weight per meter
Lmax Lcmax
mm mm mm mm kN/lbf kN kg/m
9.525   6 9.five four.5 eighteen.six 20 nine.three 1.85/1.fifty 11.eighty/2653 thirteen.six .sixty one
420 420 7.seventy seven 6.25 three.96 sixteen.1 twelve one.five 16.00/3597 17.six .55
420F3 12.7 seven.77 six.four three.ninety seven 15 sixteen.six 11.eight 1.60/1.45 sixteen.00/3597 17.6 .sixty four
420HF1 seven.77 six.twenty five 3.ninety six seventeen eighteen.four twelve 2.03 sixteen.00/3597 17.six .seventy six
420HT twelve.7 seven.seventy seven six.twenty five three.ninety six seventeen twelve two.03 21.forty/4811 23.five .seventy six
428 428 twelve.7 8.fifty one 7.75 four.forty five eighteen.2 eleven.eight one.six 17.80/4002 19.6 .7
428F1 8.51 seven.94 four.5 18.05 11.eight 1.6 17.15/3855 19.4 .seventy one
428DS twelve.7 eight.fifty one 7.ninety four four.forty five seventeen.9 19.3 12 one.85 18.62/4186 21 .seventy six
428MH 428H 8.51 7.85 four.45 18.eight 19.nine eleven.8 two.03 20.60/4631 23.four .79
428HF1 eight.fifty one 7.eighty five four.forty five seventeen.9 19 eleven.eight one.8 19.fifty/4384 .74
428HSH 8.fifty one 7.75 four.45 twenty 12 2.forty two 27.00/6070 29.4 .89
428HF4 eight.51 7.ninety four 4.five 18.9 twenty.1 11.eight 2.03 twenty.fifty/4609 23.4 .82
428HD 12.7 8.fifty one seven.eighty five 4.forty five eighteen.8 19.nine eleven.8 two.03 20.60/4631 23.4 .eighty five
428F3 12.7 eight.fifty one seven.eighty five 4.forty five eighteen.2 eleven.7 one.6 17.80/4002 19.6 .seventy seven
428F4 twelve.7 8.fifty one seven.eighty five 4.forty five eighteen.2 11.8 1.6 seventeen.80/4002 19.six .72
520 520 fifteen.875 ten.sixteen six.twenty five five.08 17.five 19 fifteen.09 two.03 26.fifty/5957 29.7 .89
520F2 15.875 ten.16 6.35 5.24 seventeen.five 19.05 15.09 2.03 26.fifty/5957 .97
520F3 15.875 10.sixteen 6.forty eight 5.08 seventeen.five 19 fifteen.09 two.03 26.50/5957 29.7 .89
520MH 520MH 15.875 ten.22 6.25 five.twenty five 19 21.2 15.three 2.two thirty.fifty/6857 33.6
520HD fifteen.875 10.16 six.35 5.34 18.six 20 15.09 two.2 35.00/7868 38.five 1.04
525 525 15.875 10.sixteen seven.95 5.08 19.three fifteen.09 two.03 26.fifty/5957 29.7 1.06
525MH 525MH fifteen.875 ten.22 seven.eighty five 5.25 21.2 23.two fifteen.3 two.two thirty.fifty/6857 33.6
525HF1 fifteen.875 10.sixteen seven.95 five.08 20.9 22.three 15.09 2.42 26.50/5957 29.7 one.2
530 530 fifteen.875 10.sixteen 9.4 5.08 22.2 15.09 2.03 26.fifty/5957 29.7 1.06
530SH fifteen.875 10.16 nine.four five.08 22.1 15.09 two.42 32.80/7374 33.five one.24
520F12 fifteen.875 10.16 six.25 five.twenty five seventeen.6 15 2.03 29.43/6615 32.three .98
520HF7 fifteen.875 10.22 seven.eight 5.three 21.35 15.3 2.8/2.42 forty.00/8992 44 one.forty three
630 630 19.05 11.ninety one nine.four 5.ninety four 23 24.eight eighteen two.forty two 35.thirty/7936 38.8

Chain No.



Roller diameter

d1 max

Width amongst
inner plates

b1 min

Pin diameter

d2 max

Pin duration Inner plate

h2 max

Plate thickness


Tensile power


Average tensile


Weight for each
q kg/m
420 OR twelve.700 seven.77 six.25 3.96 sixteen.sixty five seventeen.95 twelve.00 1.fifty sixteen./3599 17.00 .sixty two
420H OR twelve.700 seven.seventy seven 6.twenty five 3.96 18.80 20.ten 12.00 2.03 16./3599 seventeen.00 .74
428HVS 8.fifty one seven.94 four.45 21.70 22.70 twelve.30 two.03 22./4946 23.00 .85
50LD fifteen.875 ten.sixteen nine.53 5.08 23.40 24.sixty 15.09 2.03 22.2/5045 26.50 1.12
520 OR fifteen.875 10.16 six.70 five.30 21.20 22.thirty 15.09 2.20 32./7200 34.00 1.11
520F1 OR 15.875 ten.16 6.25 5.thirty 21.twenty 22.30 fifteen.09 two.20 32./7200 34.00 one.09
520F2 OR 15.875 10.16 nine.sixty five five.30 24.10 twenty five.fifty fifteen.09 2.20 32./7200 34.00 1.21
520V6 15.875 ten.16 six.twenty five five.08 19.80 21.30 15.09 two.03 22.2/5045 26.50 .ninety six
520H OR 15.875 ten.sixteen 6.25 five.24 21.52 22.ninety two fifteen.09 two.forty two 26.5/6571 29.sixty one.26
525 OR fifteen.875 ten.sixteen 7.ninety five five.30 21.fifty 22.90 fifteen.09 two.03 26.5/6571 29.60 1.thirty
525F1 OR fifteen.875 ten.sixteen seven.95 5.thirty 23.10 24.00 fifteen.09 2.20 32./7200 34.00 1.sixteen
520F14 OR 15.875 ten.twenty 6.25 five.09 19.90 fourteen.ninety 1.80 28.4/6391 30.sixty .ninety two
525H OR 15.875 10.16 7.95 5.30 23.10 24.50 15.09 two.42 26.5/6571 29.sixty 1.forty four
530H OR fifteen.875 ten.16 nine.53 5.24 24.eighty 26.twenty 15.09 two.42 29./6524 thirty.00 1.39
630F1 OR 19.050 eleven.ninety one nine.fifty three five.94 25.50 27.30 eighteen.00 2.forty two 31.8/7149 35.00 one.fifty


Chain No.

Chain No.



Bush diameter

d1 max

Width between
inner plates
b1 min
Pin diameter

d2 max

Pin duration


Inner plate
h2 max
Plate thickness

t/T max

Tensile toughness


Regular tensile
Bodyweight for each
q kg/m
25 6.350 3.thirty 3.18 two.31 7.90 six.00 .80 3.5/795 four.6 .fifteen
25H 25H six.350 three.30 3.eighteen two.31 8.90 6.00 one.04 4.8/1091 five.5 .seventeen
25H(E) 6.350 3.30 three.eighteen two.31 eight.90 6.00 1.04 5.8/1304 six.four .eighteen
25HF2 six.350 3.30 three.eighteen 2.31 9.ten 5.eighty 1.2/1.ten five.8/1304 six.four .19
25SHF1 6.350 three.30 3.18 2.01 8.95 5.ninety one.04 four.8/1091 five.five .19
219H 219H 7.774 4.59 five.00 three.01 11.90 seven.40 1.2/1.04 7.3/1641 8. .28
*C219H seven.774 four.59 five.00 three.01 eleven.90 7.40 1.2/1.04 7.3/1641 8. .33
219HT seven.774 4.59 four.60 3.01 twelve.15 seven.55 1.4/1.three 6.6/1483 7.2 .33
219HF2 7.774 4.fifty nine 4.50 3.01 eleven.90 seven.forty one.4/1.three six.6/1483 7.2 .31
219HF1 seven.785 four.sixty 4.50 three.28 13.00 seven.00 two./1.forty 9./2571 9.eight .37
270H 270H eight.500 5.00 4.seventy five three.28 13.fifteen 8.45 1.8/1.forty ten.8/2428 11.nine .forty three

Package deal & Shipping

SMCC Chains is 1 of the most broadly utilised and welcome items in the marketplace. Its steady revolutionary development is ideal to be the solutions for many problems, standard roller chains, bike driving chain, O-ring motorcycle chain, substantial power roller chain, conveyor chains, agricultural driving chain, galvanized chain, nickel-plated chain, lubrication-totally free chain and oilfield chain etc.

Our SMCC chain was made by machinery processing from uncooked supplies to completed products and a total set of good quality tests tools. Mechanical processing products consist of grinding devices, high velocity punching equipment, milling machines, large speed automatic rolling and assembling equipment. Warmth remedy was processed by constant mesh belt conveyor furnace, mesh belt conveyor annealing furnace, advanced central control program of heat treatment method, rotary CZPT for chain component heat treatment method, which guarantee the security and consistency of the key operate of chain elements.
We are the very best suppliers of Chinese greatest palletizing robot enterprises. These products are tough high quality with cost-effective prices, change of Japan chains, ZheJiang chains exported to Europe, The usa, Asia and other international locations and regions.


An instance of 2 ‘ghost’ sprockets tensioning a triplex roller chain method
Roller chains are employed in lower- to mid-speed drives at around 600 to 800 ft for each minute nonetheless, at higher speeds, all around 2,000 to 3,000 feet per moment, V-belts are usually employed thanks to put on and noise troubles.
A bicycle chain is a sort of roller chain. Bicycle chains may have a master website link, or could demand a chain device for elimination and installation. A equivalent but greater and hence more robust chain is employed on most bikes though it is often replaced by both a toothed belt or a shaft drive, which offer you lower noise degree and much less servicing specifications.
The fantastic bulk of vehicle engines use roller chains to push the camshaft(s). Extremely high functionality engines usually use equipment travel, and commencing in the early sixties toothed belts were utilized by some makers.
Chains are also used in forklifts using hydraulic rams as a pulley to CZPT and lower the carriage nonetheless, these chains are not deemed roller chains, but are classified as raise or leaf chains.
Chainsaw reducing chains superficially resemble roller chains but are far more closely associated to leaf chains. They are driven by projecting travel backlinks which also serve to locate the chain on to the bar.

Sea Harrier FA.2 ZA195 entrance (chilly) vector thrust nozzle – the nozzle is rotated by a chain push from an air motor
A maybe uncommon use of a pair of motorbike chains is in the Harrier Bounce Jet, exactly where a chain travel from an air motor is utilized to rotate the movable engine nozzles, making it possible for them to be pointed downwards for hovering flight, or to the rear for standard forward flight, a program known as Thrust vectoring.


The lightweight chain of a bicycle with derailleur gears can snap (or relatively, come aside at the facet-plates, considering that it is typical for the “riveting” to fall short first) because the pins within are not cylindrical, they are barrel-formed. Get in touch with among the pin and the bushing is not the typical line, but a position which permits the chain’s pins to operate its way by means of the bushing, and lastly the roller, eventually causing the chain to snap. This form of design is required because the gear-modifying motion of this kind of transmission requires the chain to equally bend sideways and to twist, but this can occur with the versatility of this sort of a narrow chain and comparatively big free lengths on a bicycle.

Chain failure is much significantly less of a issue on hub-geared programs (e.g. Bendix 2-speed, Sturmey-Archer AW) since the parallel pins have a significantly greater donning area in make contact with with the bush. The hub-gear system also allows full enclosure, a great aid to lubrication and defense from grit.

CHAIN Strength

The most common evaluate of roller chain’s power is tensile energy. Tensile power represents how a lot load a chain can endure under a one-time load ahead of breaking. Just as essential as tensile energy is a chain’s fatigue energy. The critical aspects in a chain’s tiredness toughness is the quality of steel utilised to manufacture the chain, the warmth treatment method of the chain components, the quality of the pitch gap fabrication of the linkplates, and the variety of shot additionally the intensity of shot peen coverage on the linkplates. Other elements can include the thickness of the linkplates and the style (contour) of the linkplates. The rule of thumb for roller chain working on a ongoing travel is for the chain load to not CZPT a mere 1/6 or 1/9 of the chain’s tensile energy, depending on the sort of master back links utilized (press-suit vs. slip-suit)[citation essential]. Roller chains operating on a continuous drive past these thresholds can and generally do are unsuccessful prematurely by way of linkplate exhaustion failure.

The regular least greatest power of the ANSI 29.1 metal chain is twelve,500 x (pitch, in inches)two. X-ring and O-Ring chains greatly lessen use by means of internal lubricants, increasing chain existence. The internal lubrication is inserted by signifies of a vacuum when riveting the chain jointly.


Requirements businesses (this sort of as ANSI and ISO) sustain standards for design and style, dimensions, and interchangeability of transmission chains. For instance, the following Table exhibits info from ANSI normal B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][ten] for extra data.

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

ASME/ANSI B29.1-2011 Roller Chain Standard Dimensions
Measurement Pitch Highest Roller Diameter Least Supreme Tensile Energy Measuring Load
twenty five .250 in (6.35 mm) .a hundred thirty in (3.30 mm) 780 lb (350 kg) eighteen lb (8.2 kg)
35 .375 in (9.fifty three mm) .two hundred in (5.08 mm) one,760 lb (800 kg) 18 lb (8.2 kg)
forty one .five hundred in (twelve.70 mm) .306 in (7.77 mm) 1,500 lb (680 kg) eighteen lb (8.2 kg)
40 .500 in (twelve.70 mm) .312 in (7.92 mm) three,a hundred twenty five lb (1,417 kg) 31 lb (14 kg)
50 .625 in (15.88 mm) .four hundred in (ten.sixteen mm) four,880 lb (2,210 kg) forty nine lb (22 kg)
60 .750 in (19.05 mm) .469 in (11.ninety one mm) seven,030 lb (3,190 kg) 70 lb (32 kg)
eighty one.000 in (25.forty mm) .625 in (15.88 mm) 12,500 lb (5,seven-hundred kg) one hundred twenty five lb (57 kg)
one hundred one.250 in (31.seventy five mm) .750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 one.five hundred in (38.ten mm) .875 in (22.23 mm) 28,a hundred twenty five lb (twelve,757 kg) 281 lb (127 kg)
140 1.750 in (forty four.forty five mm) 1.000 in (twenty five.forty mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 two.000 in (fifty.80 mm) one.a hundred twenty five in (28.fifty eight 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) sixty three,280 lb (28,seven hundred kg) 633 lb (287 kg)
two hundred 2.five hundred in (63.fifty mm) one.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (forty seven.sixty three mm) 112,500 lb (fifty one,000 kg) 1,000 lb (450 kg

For mnemonic functions, beneath is yet another presentation of essential dimensions from the identical standard, expressed in fractions of an inch (which was component of the thinking driving the selection of desired numbers in the ANSI common):

Pitch (inches) Pitch expressed
in eighths
ANSI common
chain variety
Width (inches)
one4 2eight 2five oneeight
threeeight 3eight 3five threesixteen
12 four8 41 14
12 foureight 4 fivesixteen
58 58 five threeeight
34 six8 6 onetwo
one 88 eight 5eight

1. The pitch is the distance between roller centers. The width is the length amongst the url plates (i.e. somewhat far more than the roller width to let for clearance).
two. The correct-hand digit of the normal denotes = typical chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the quantity of eighths of an inch that make up the pitch.
4. An “H” adhering to the normal number denotes heavyweight chain. A hyphenated quantity pursuing the normal variety denotes double-strand (2), triple-strand (3), and so on. As a result 60H-3 denotes quantity sixty heavyweight triple-strand chain.
A common 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 ability. The far more sprockets at the rear wheel (traditionally 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are bought according to the amount of speeds they are designed to function with, for illustration, “ten pace chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, exactly where 1/8″ refers to the optimum thickness of a sprocket that can be utilised with the chain.

Usually chains with parallel formed backlinks have an even number of backlinks, with every slim url adopted by a broad 1.Chains created up with a uniform type of website link, slender at 1 and wide at the other stop, can be manufactured with an odd quantity of back links, which can be an edge to adapt to a specific chainwheel-distance on the other aspect this kind of a chain tends to be not so sturdy.

Roller chains made using ISO standard are sometimes named as isochains.

WHY Choose US

one. Dependable Quality Assurance Method
2. Chopping-Edge Computer-Managed CNC Machines
3. Bespoke Remedies from Highly Seasoned Specialists
four. Customization and OEM Accessible for Particular Application
five. Comprehensive Stock of Spare Parts and Add-ons
six. Effectively-Designed Worldwide Marketing Network
7. Productive Right after-Sale Services Program


The 219 sets of advanced computerized manufacturing gear provide assures for high product quality. The 167 engineers and specialists with senior specialist titles can style and produce items to fulfill the specific needs of customers, and OEM customizations are also available with us. Our seem international provider network can offer consumers with timely soon after-sales complex providers.

We are not just a manufacturer and supplier, but also an sector specialist. We operate professional-actively with you to offer you skilled suggestions and item tips in buy to conclude up with a most cost effective merchandise obtainable for your distinct application. The clients we provide worldwide assortment from finish consumers to distributors and OEMs. Our OEM replacements can be substituted anywhere required and appropriate for the two restore and new assemblies.







The roller chain operates on rotating sprockets related to the motor that drives the chain. In most roller chains, there are two sorts of hyperlinks utilised alternately to make it function. Internal sign up for (also called roller join): The two interior plates are joined together by two sleeves or bushings under the two rollers. Outer ring (also called pin ring): The two outer plates are pinned jointly, by means of the bushing of the interior ring.
No matter whether you are creating from scratch or updating an current undertaking, obtaining the correct size for your roller chain is a essential 1st selection. To precisely measure a roller chain, you require to know the overall width, diameter, and width of the rollers, plate thickness, and height.