High-Performance Double Pitch Transmission Chains for Industrial Use (208A)

• Customization: Available
• Material: Alloy
• Structure: Roller Chain
• Model NO.: 208A A 220B 210B 220A 210A
• Surface Treatment: Polishing
• Chain Size: 208A a 220b 210b 220A 210A
• Feature: Heat Resistant
• Function: Moisture and Acid Against
• Certification: ISO90001, SGS
• Packaging: Wooden Case or Pallet
• Attachment: OEM
• Standard: ISO/DIN/ANSI Standard
• Color: Solid Color
• Warranty: 1 Year
• Transport Package: Carton Cases. Pallet or Wooden Box
• Specification: Customer′s packaging requirements can be customize
• Trademark: SMCC OR NO MARK
• Origin: China
• HS Code: 7315119000
• Production Capacity: 5000000meters/Year
• Package Size: 50.00cm * 40.00cm * 30.00cm
• Package Gross Weight: 20.000kg

Product Description

DIN/IS0 DIN/IS0 Chain No	ANSI ANSI Chain No	Pitch P	Roller diameter   di   maX	Width between inner plates bi min mm	Pin diameter	Pin ength		Inner plate depth	Plate thickness	Tensile strength	Average tensile strength	Weight per me ter
					d2 maX	L maX	Lc aX	h2 aX	t/T aX	Q min	Q0	9
							m			N/lbf	kN	kg/m
208A 208B	2040	25.40 25.40	7.95 8.51	7.85 7.75	3.96 4.45	16.6 16.7	17.8 18.2	12.0	1.50	14.1/3205	16.7	0.42
								11.8	1.60	18.0/4091	19.4	0.45
210A	2050	31.75	10.16	9.40	5.08	20.7	22.2	15.0	2.03	22.2/5045	28.1	0.73
210B		31.75	10.16	965	5.08	19.5	20.9	14.7	1.70	22.4/5091	27.5	0.65
212A	2060	38.10	11.91	12.57	5.94	25.9	27.7	18.0	2.42	31.8/7227	36.8	1.02
212B		38.10	12.07	11.68	5.72	22.5	25.2	16.0	1.85	29.0/6591	32.2	0.76
216A	2080	50.80	15.88	15.75	7.92	32.7	36.5	24.0	3.25	56.7/12886	65.7	1.70
216B		50.80	15.88	17.02	8.28	36.1	39.1	21.0	4.15/31	60.0/13636	72.8	1.75
220A	2100	63.50	19.05	18.90	9.53	40.4	44.7	30.0	4.00	88.5/20114	102.6	2.55
220B		63.50	19.05	19.56	10.19	41.3	45.0	26.4	4.5/3.5	95.0/14773	106.7	2.62
224A	2120	76.20	22.23	25.22	11.10	50.3	54.3	35.7	4.80	127.0/28864	147.3	4.06
224B		76.20	25.40	25.40	14.63	53.4	57.8	33.2	6.0/4.8	160.0/36364	178.0	4.70
228B		88.90	27.94	30.99	15.90	65.1	69.5	36.7	7.5/6.0	200.0/45455	222.0	6.23
232B		101.60	29.21	30.99	17.81	66.0	71.0	42.0	7.0/6.0	250.0/56818	277.5	6.72
208AH	2040H	25.40	7.95	7.85	396	188	19.9	12.0	2.03	14.1/3205	16.7	0.53
210AH	2050H	31.75	10.16	9.40	5.08	22.1	23.8	15.0	2.42	22.2/5045	28.1	0.79
212AH	2060H	38.10	11.91	12.57	5.94	29.2	31.0	18.0	3.25	318/7227	368	1.28
216AH	2080H	50.80	15.88	15.75	7.92	36.2	39.4	24.0	4.00	56.7/12886	70.0	2.17
220AH	2100H	63.50	19.05	18.90	9.53	43.6	47.2	30.0	4.80	88.5/20114	102.6	3.15
224AH	2120H	76.20	22.23	25.22	11.10	53.5	57.5	35.7	5.60	127.0/28864	147.3	4.57

CHAIN STANDARDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard 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][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

 

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

 

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An "H" following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, "10 speed chain". Hub gear or single speed bicycles use 1/2" x 1/8" chains, where 1/8" refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at one and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

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