Maryland Metrics offers quality Oil Field Roller Chains manufactured in accordance with ISO 606, ANSI B29.1 and API Spec 7F for the oil and natural gas industries. Products are of made of high quality alloy steel and available in either single strand or multiple strand (up to ten strands). Heavy duty series of Oil Field Roller Chains are also available on request.
| ANSI Chain No. | Pitch | Roller Dia. | Width Between Inner Plates | Pin Dia. | Pin Length | Transverse Pitch | Min. Breaking Load (Simplex) | Endurance Limit Load (Simplex) | Min. Breaking Load (Multi Strand) | |
| in | mm | Q (N) | Q1 (N) | q (N) | ||||||
| 80 | 1 | 25.40 | 15.88 | 15.88 | 7.92 | 37.55 | 29.29 | 55600 | 12260 | N*Q |
| 100 | 1 1/4 | 31.75 | 19.05 | 19.05 | 9.52 | 44.26 | 35.76 | 86880 | 19120 | |
| 120 | 1 1/2 | 38.10 | 22.22 | 25.40 | 11.10 | 55.44 | 45.44 | 125110 | 27460 | |
| 140 | 1 3/4 | 44.45 | 25.40 | 25.40 | 12.70 | 60.55 | 48.87 | 170290 | 37260 | |
| 160 | 2 | 50.80 | 28.57 | 31.75 | 14.27 | 70.00 | 58.55 | 222410 | 49030 | |
| 180 | 2 1/4 | 57.15 | 35.71 | 35.71 | 17.45 | 81.60 | 65.84 | 281490 | 67180 | |
| 200 | 2 1/2 | 63.50 | 39.67 | 38.10 | 19.84 | 88.90 | 71.55 | 347520 | 76490 | |