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Heavy Series Quick Reference Guide
Solid Bushings | Solid Rollers | Through-Hardened Pins | High Grade Alloy Steel | Single Strand Runs | On Standard Sprockets

HKK Heavy series roller chains have increased link plate thickness to provide greater capacity without fatigue failure. Link plate thickness is that of the next larger size chain. The letter “H” following the number signifies the chain is of the Heavy series. Unlike many other brands, HKK single strand Heavy chains are manufactured with solid bushings, solid rollers and through-hardened pins. Multiple strand Heavy series chains are also available.

Heavy_Series_Roller_Chains_1  Heavy_Series_Roller_Chains_2

HKK
Chain
No. (1)
Pitch Roller Pin Plate Overall Width Transverse
Pitch
Maximum
Allowable
Load (lbs) (29)
Average
Ultimate
Strength (lbs) (30)
Average
Weight Per Foot (lbs)
Dia. Width Dia. Height Thickness
A (3)B (6)W (7)D (8)H (10)T (14)L1 (19)L2 (20)G (27)Riveted (31)Cottered (32)
HKK 35H* 3/8 0.200 3/16 0.141 0.354 0.060 0.256 0.295 - 670 2,850 0.28 -
HKK 40H* 1/2 0.312 5/16 0.156 0.457 0.080 0.366 0.414 - 1,030 4,300 0.55 -
HKK 50HHKK 50-2H 5/8 0.400 3/8 0.200 0.5710.571 0.094 0.4330.819 0.4960.882 -0.772 1,6202,400 8,15016,300 0.841.58 --
HKK 60HHKK 60-2H 3/4 0.469 1/2 0.234 0.6890.689 0.125 0.5651.077 0.6441.606 -1.028 2,0003,400 12,30024,600 1.212.41 --
HKK 80HHKK 80-2H 1 0.625 5/8 0.312 0.9210.921 0.156 0.6991.346 0.8171.461 -1.283 3,4005,800 20,20040,400 1.893.72 1.963.87
HKK 100HHKK 100-2H 1 - 1/4 0.750 3/4 0.375 1.1541.154 0.187 0.8311.606 0.9691.740 -1.539 5,2008,800 30,80061,600 2.785.51 2.835.62
HKK 120HHKK 120-2H 1 - 1/2 0.875 1 0.437 1.3821.382 0.219 1.0362.010 1.2082.167 -1.925 7,00012,000 41,80083,600 3.927.77 4.007.93
HKK 140HHKK 140-2H 1 - 3/4 1.000 1 0.500 1.6101.610 0.250 1.1222.155 1.3042.337 -2.055 9,20015,700 54,200108,400 5.6511.15 5.7611.37
HKK 160HHKK 160-2H 2 1.125 1 - 1/4 0.562 1.8391.839 0.281 1.3332.555 1.5342.760 -2.437 12,30020,900 68,700137,400 7.3014.25 7.5214.67
HKK 180HHKK 180-2H 2 - 1/4 1.406 1 - 13/32 0.687 2.0672.067 0.312 1.4902.844 1.7233.071 -2.700 13,40022,800 83,700167,400 10.2020.20 10.5020.60
HKK 200HHKK 200-2H 2 - 1/2 1.562 1 - 1/2 0.781 2.3542.354 0.375 1.6663.212 2.0043.552 -3.083 17,70028,400 117,000234,000 12.0023.65 12.3624.12
Dimensions in inches & pounds

*- Case Hardened Pin

Specifications