THC Logo Oil Field Roller Chains - Simplex Duplex and Triplex

Oil Field Chains are used for oil-field drilling and producing operations such as mud pump drives, engine compounds, tubular and casing draw works input, transmission drives, camshafts, low and high drum, rotary countershafts, and rotary tables. These chains are also used in mining, logging and ball mill applications. Safety and reliability is paramount for oil field chains. Only a few highly professional chain manufacturers can offer this product, THC is one of them!

Oil Field Chains: Simplex, Duplex and Triplex

THC brand Oil Field Chains are made of special alloy steel with the latest heat-treatment techniques! The pin surface is carbonized and hardened for superior impact resistance, resulting in greater breaker strength and increased chain wear life compared to ANSI standard chain. Link plates are ball-drifted after heat treatment for greater fatigue strength. This results in a 30% increase in chain life compared to ANSI standard roller chains. Rollers, precisely manufactured, are shot-peened after heat-treatment to give them superior fatigue life and high speed durability. Heavy-Duty Oil Field Chains (with thicker linkplates) are designed for excellent resistance to greater capacity for absorbing shock loads, and are mainly for applications where space and design limitations prohibit the use of a large size roller chain, and yet greater load carrying capacities are needed in oil-field drilling operations. Shepherd's crook type cotter is supplied unless riveted contraction is requested, thus full detachable along its length. Heavy-Duty Oil Field Chains (with thicker link plates) are also available for excellent resistance to heavy loads and help absorb shock.

Oil Field Chains: Simplex, Duplex and Triplex

ANSI Chain # ISO Chain # P d1 b1 d2 h2 t/T Pt L Lc U.T.S. (kN) Wt. (kg/m)
80OFC-1 16A 25.40 15.88 15.75 7.92 24.10 3.18 - 32.60 36.20 55.60 2.76
80OFC-2 29.29 61.90 65.50 111.20 5.45
80OFC-3 91.20 94.80 166.80 8.15
100OFC-1 20A 31.75 19.05 18.90 9.53 30.10 3.96 - 39.60 43.60 86.84 4.15
100OFC-2 35.76 75.40 79.40 173.88 8.20
100OFC-3 111.20 115.20 260.52 12.23
120OFC-1 24A 38.10 22.23 25.22 11.10 36.10 4.75 - 49.90 54.10 125.10 6.05
120OFC-2 45.44 95.30 99.50 250.20 11.99
120OFC-3 140.80 145.00 375.30 17.93
140OFC-1 28A 44.45 25.40 25.22 12.70 42.10 5.56 - 53.70 58.40 170.27 7.99
140OFC-2 48.87 102.60 107.30 340.54 15.44
140OFC-3 151.90 156.10 510.81 23.09
160OFC-1 32A 50.80 28.58 31.55 14.27 48.10 6.35 - 63.90 69.00 222.40 10.33
160OFC-2 58.55 122.50 127.60 444.80 20.50
160OFC-3 181.00 186.10 667.20 30.67
200OFC-1 40A 63.50 39.68 37.85 19.85 60.00 7.92 - 77.90 84.50 347.41 17.05
200OFC-2 71.55 149.50 156.10 695.00 33.83
200OFC-3 221.00 227.60 1,042.50 50.63
240OFC-1 48A 76.20 47.63 47.35 23.81 72.39 9.52 - 95.10 102.20 500.40 24.93
240OFC-2 87.83 183.00 194.10 1,000.80 49.54
240OFC-3 270.80 277.90 1,501.20 74.16

Certified documents of technical data and materials on request.

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