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Allied-Locke "H" Class Mill Chain is an extremely strong, serviceable chain originally designed for heavy drives and transfer conveyor purposes in the forest products industry. It is also appropriate for many other industrial applications, especially for moderate duty in abrasive atmospheres.

The direction of travel for "H" Class Mill Chain is determined by the application. If used in a conveyor application, the direction should be with the open end first. If used as a drive chain, the closed end, or the end with the barrel, should be first.

Dimensions are given in inches.
H78 Plain Chain
Cottered Dimensions<!--H Class Cottered-->
Unit of Measure
Items H78 Plain Chain
H60
"H" Class Mill Chain
H78 Plain Chain
H74
"H" Class Mill Chain
H78 Plain Chain
H78
"H" Class Mill Chain
H78 Plain Chain
H79
"H" Class Mill Chain
H78 Plain Chain
H82
"H" Class Mill Chain
Pitch N/A 2.308 N/A 2.609 N/A 2.609 N/A 2.609 N/A 3.075
Diameter of Pin (E) N/A 0.312 N/A 0.375 N/A 0.500 N/A 0.500 N/A 0.562
Height of Sidebar (H) N/A 0.75 N/A 1.00 N/A 1.12 N/A 1.12 N/A 1.25
Diameter of Barrel (H) N/A 0.75 N/A 0.88 N/A 0.88 N/A 0.88 N/A 1.22
Max. Allowable Sprocket Face (A) N/A 0.75 N/A 1.00 N/A 1.12 N/A 1.12 N/A 1.25
Bearing Length (X) N/A 1.50 N/A 1.66 N/A 1.88 N/A 1.88 N/A 2.12
Max. Recommended Working Load N/A 1,560 lb N/A 1,850 lb N/A 2,810 lb N/A 2,810 lb N/A 3,580 lb
Overall Width - Cottered (C2) N/A 2.62 N/A 3.12 N/A 3.31 N/A 3.31 N/A 3.88
Overall Width - Riveted (C1) N/A 2.62 N/A 2.88 N/A 3.19 N/A 3.19 N/A 3.88
Head of Pin to Center Line (J) N/A 1.25 N/A 1.50 N/A 1.56 N/A 1.56 N/A 1.88
End of Pin to Center Line - Cottered (K) N/A 1.38 N/A 1.62 N/A 1.62 N/A 1.62 N/A 2.00
End of Pin to Center Line - Riveted (L) N/A 1.38 N/A 1.62 N/A 1.62 N/A 1.62 N/A 2.00
Avg. Ultimate Strength N/A 9,450 lb N/A 13,500 lb N/A 22,200 lb N/A 24,300 lb N/A 27,000 lb
Links per 10' N/A 52 N/A 46 N/A 46 N/A 46 N/A 39
Weight per ft. N/A 2.1 lb N/A 3.0 lb N/A 4.2 lb N/A 4.8 lb N/A 5.5 lb
Links N/A All Numbers Moline Promal
Pins N/A All Numbers Carbon Steel, Heat-Treated
Attachment Available N/A H2 K1 N/A F4 N/A A1 F4 F8 G19 H1 H2 K1 K2 N/A N/A K2
Note N/A Available in riveted and cottered construction.
Applications Served N/A conveyors forest products high-temperature industrial ovens produce washdown sugar harvesting water treatment