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ANSI Standard Short Pitch Precision Roller Chains

ANSI Standard Roller Chains are manufactured to ISO 606, ANSI B29.1 and DIN 8188. Products are available both in riveted and cottered constructions, and carbon steel and stainless steel (from #35SS to #120SS, AISI 304 or 316) in single and multiple strands. Attachments for short pitch roller chain include SK1, BK1, SK2, BK2, SH1, BH1, SH2, BH2, SD, or according to customers' requirements.

NSI Chain No. Pitch Roller Diameter Width Between Inner Plates Chain Path Depth Transverse Pitch Breaking Load (daN)
Carbon Steel Stainless Steel
in mm Simplex Duplex Triplex Simplex Duplex
25* 1/4 6.35 3.30* 3.10 6.02 6.40 350 720 1080 - -
35* 3/8 9.525 5.08* 4.68 9.05 10.13 790 1580 2370 550 1100
40 1/2 12.70 7.95 7.85 12.07 14.38 1380 2760 4140 960 1930
41 1/2 12.70 7.77 6.25 - - 667 - - - -
50 5/8 15.875 10.16 9.40 15.35 18.11 2180 4360 6540 1520 3050
60 3/4 19.05 11.91 12.57 18.34 22.78 3110 6230 9340 2170 4360
80 1 25.40 15.88 15.75 24.39 29.29 5560 11120 16680 3890 7780
100 1 1/4 31.75 19.05 18.90 30.48 35.76 8670 17350 26020 5940 11880
120 1 1/2 38.10 22.23 25.22 36.55 45.44 12460 24910 37370 9280 18560
140 1 3/4 44.45 25.40 25.22 42.67 48.47 16900 33810 50710 - -
160 2 50.80 28.58 31.55 48.74 58.55 22240 44480 66720 - -
180 2 1/4 57.15 35.71 35.49 54.86 65.84 28130 56260 84390 - -
200 2 1/2 63.50 39.68 37.85 60.93 71.55 34700 69390 104090 - -
240 3 76.20 47.63 47.35 73.13 87.83 50040 100080 150130 - -

1. #25 and #35 are short pitch precision bush chains, sometimes they are respectively referred as 04C and 06C. Relevant standards include ISO 1395, ANSI B29.1M, NFE 26-104, DIN 8154, JIS B1801.

ANSI Standard Roller Chains with Attachments

2. ANSI standard short pitch precision roller chains with various attachments are usually called as Attachment Chains. The following attachments apply to both ANSI and BS/DIN short pitch precision roller chains.

Connecting Links and Offset Links

3. Spring clip type connecting links (CL) are available for all single and multiple strand ANSI standard chain from 80 and below and British standard chain from 16B and below. Cotter type connecting links are available for all single and multiple strand ANSI 80 and above, and British standard 16B and above. An offset link (OL) is a combination of a roller link and a pin link. This link is used where the chain is used when the chain length is an odd number of pitches. It is recommended not to use an offset link whenever possible. Two pitch offset link consists of one offset and one roller link. Pins are press fitted into the link plates and the unit is more suitable for heavy impact load and high speed driving than one pitch offset.

4. Conversion Formula: 1 daN=1.02 kgf, 1 meter=3.2808 feet, 1 kg=2.205 lbs.

For heavy duty series ANSI Roller Chains, please click here. For BS/DIN Standard Short Pitch Precision Roller Chains, please click and visit the relevant page

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