THC Logo ANSI Standard Short Pitch Heavy Duty Roller Chains

ANSI Standard Short Pitch Heavy Duty Roller Chains are built in the same techniques as ANSI Standard Roller Chain (ISO 606A, ANSI B29.1M and DIN 8188) but with next thicker link plates providing increased fatigue resistance for those drives subjected to heavy shock loads, multiple stops/starts or reversing as found in mining, quarrying, rock drilling, forestry and construction machinery.

THC Chain # DIN Chain # P d1 b1 d2 t/T h2 Pt L Lc U.T.S. (kN) Wt. (kg/m)
40H-1 08AH 12.70 7.92 7.85 3.96 2.00 12.00 - 18.50 19.40 13.80 0.82
50H-1 10AH 15.875 10.16 9.40 5.08 2.40 15.00 - 22.10 24.20 21.80 1.30
60H-1 12AH 19.05 11.91 12.57 5.94 3.20 18.00 - 28.50 30.70 31.10 1.87
60H-2 26.10 54.60 56.80 62.30 3.71
60H-3 80.70 82.90 93.40 5.54
80H-1 16AH 25.40 15.88 15.75 7.92 4.00 23.50 - 35.90 38.40 55.60 3.10
80H-2 32.59 68.50 71.00 111.20 6.10
80H-3 101.10 103.60 166.80 9.10
100H-1 20AH 31.75 19.05 18.90 9.52 4.90 30.00 - 42.80 46.30 86.70 4.64
100H-2 39.09 81.90 85.40 173.50 9.14
100H-3 121.00 124.50 260.20 13.64
120H-1 24AH 38.10 22.23 25.22 11.10 5.60 35.80 - 53.60 56.90 124.60 6.50
120H-2 48.87 102.50 105.80 249.10 12.80
120H-3 151.40 154.70 373.70 19.10
140H-1 28AH 44.45 25.40 25.22 12.70 6.40 41.50 - 56.60 60.60 169.00 8.30
140H-2 52.20 108.80 112.80 338.10 16.30
140H-3 161.00 165.00 507.10 24.30
160H-1 32AH 50.80 28.58 31.55 14.27 7.50 48.00 - 67.30 71.00 222.40 11.07
160H-2 61.90 129.20 132.90 444.80 21.97
160H-3 191.10 194.80 667.20 32.87
180H-1 36AH 57.15 35.71 35.48 17.46 8.00 54.00 - 75.90 80.30 280.20 14.90
180H-2 69.16 145.00 149.40 560.40 29.56
180H-3 214.20 218.60 840.60 44.22
200H-1 40AH 63.50 39.68 37.85 19.84 9.60 59.60 - 85.80 90.10 347.00 20.00
200H-2 78.31 164.10 168.40 693.90 39.50
200H-3 242.40 246.70 1,040.90 59.00
240H-1 48AH 76.20 47.63 47.35 23.80 12.80 71.50 - 108.00 112.80 500.40 30.00
240H-2 101.22 209.20 214.00 1,000.80 59.50
240H-3 310.40 315.20 1,501.30 89.00

Heavy Duty Roller Chains are not necessarily stronger than the corresponding ANSI Standard Roller Chains. Single strand heavy duty roller chains can operate on standard sprockets, however, all multiple strand chains require special sprockets to accommodate the difference of dimensional changes in the transverse pitch (the distance between roller center lines). Proper lubrication of the chain drive in severe operating conditions is highly recommended.


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