ASA – American Standard Transmission Chains (ANSI)

Name: Precision Chains Limited
Address: Clee Rd, Dudley, West Midlands, DY2 0YG
Telephone: +44 1384 455 455

American Standard transmission chains, governed by ANSI (American National Standards Institute) standards, are commonly used in North America and other regions with similar mechanical systems. These chains offer a larger pitch size and are designed to handle high loads and power transmission in water treatment operations. Key features include:

Pitch Sizes: ANSI chains generally have larger pitch sizes than BS chains, allowing them to support more substantial loads, making them suitable for large-scale, heavy-duty operations.
Durability: These chains are designed with durability in mind, ensuring they can withstand the intense mechanical forces and challenging conditions in water treatment plants.
Applications: ANSI chains are typically found in North American-style water treatment equipment, where high-load power transmission is required, such as in large grit removal systems, sludge handling, and rotating machinery.

Chains manufactured by Group company John King Chains Limited in England.

American Standard Roller Chains - drawing

	P	D2	D6	F2	H	L	L1
Chain Number	Pitch	Rollers Outside Diameter	Pins Diameter	Over All Pin & Cotter	Sidebars Height	Between Sidebars	Transverse pitch	Tensile Strength	Weight
	[in]	[in]	[in]	[in]	[in]	[in]	[in]	[N]	[kg/m]
25-1*	0.250	0.130	0.090	0.370	0.236	0.125	–	3,892	0.13
25-2*	0.250	0.130	0.090	0.630	0.236	0.125	0.252	7,784	0.24
35-1*	0.375	0.200	0.141	0.560	0.354	0.188	–	9,341	0.31
35-2*	0.375	0.200	0.141	0.960	0.354	0.188	0.399	18,683	0.67
35-3*	0.375	0.200	0.141	1.360	0.354	0.188	0.399	28,024	1.01
40-1	0.500	0.312	0.156	0.720	0.472	0.313	–	17,792	0.61
40-2	0.500	0.312	0.156	1.290	0.472	0.313	0.566	35,584	1.19
40-3	0.500	0.312	0.156	1.850	0.472	0.313	0.566	56,376	1.79
41-1	0.500	0.306	0.141	0.650	0.390	0.250	–	10,675	0.39
50-1	0.625	0.400	0.200	0.890	0.594	0.375	–	29,356	1.01
50-2	0.625	0.400	0.200	1.600	0.594	0.375	0.713	58,713	1.96
50-3	0.625	0.400	0.200	2.310	0.594	0.375	0.713	88,070	2.95
50-4	0.625	0.400	0.200	3.030	0.594	0.375	0.713	117,427	3.93
60-1	0.750	0.469	0.234	1.110	0.709	0.500	–	37,808	1.47
60-2	0.750	0.469	0.234	2.010	0.709	0.500	0.897	75,616	2.9
60-3	0.750	0.469	0.234	2.910	0.709	0.500	0.897	113,424	4.29
60-4	0.750	0.469	0.234	3.810	0.709	0.500	0.897	151,232	5.8
80-1	1.000	0.625	0.312	1.440	0.945	0.625	–	64,446	2.57
80-2	1.000	0.625	0.312	2.590	0.945	0.625	1.153	128,992	5.04
80-3	1.000	0.625	0.312	3.740	0.945	0.625	1.153	193,488	7.47
100-1	1.250	0.750	0.375	1.730	1.181	0.750	–	106,752	3.73
100-2	1.250	0.750	0.375	3.140	1.181	0.750	1.408	213,504	7.31
100-3	1.250	0.750	0.375	4.560	1.181	0.750	1.408	320,256	11.01
120-1	1.500	0.875	0.437	2.140	1.406	1.000	–	151,232	5.49
120-2	1.500	0.875	0.437	3.930	1.406	1.000	1.789	302,464	10.94
120-3	1.500	0.875	0.437	5.720	1.406	1.000	1.789	453,696	16.52
140-1	1.750	1.000	0.500	2.310	1.663	1.000	–	172,400	7.450
140-2	1.750	1.000	0.500	4.240	1.663	1.000	1.924	344,800	14.390
140-3	1.750	1.000	0.500	6.160	1.663	1.000	1.924	517,200	21.320
160-1	2.000	1.125	0.562	2.730	1.899	1.250	–	226,800	9.740
160-2	2.000	1.125	0.562	5.040	1.899	1.250	2.305	453,600	19.120
160-3	2.000	1.125	0.562	7.350	1.899	1.250	2.305	680,400	28.370
180-1	2.250	1.406	0.687	3.150	2.132	1.406	–	280,200	13.510
180-2	2.250	1.406	0.687	5.750	2.132	1.406	2.592	560,500	26.340
200-1	2.500	1.562	0.781	3.440	2.312	1.500	–	353,800	15.880
200-2	2.500	1.562	0.781	6.260	2.312	1.500	2.817	707,600	32.050

* Bush chain

ASA – American Standard Transmission Chains (ANSI)

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