Double Flex Chain rotates on two planes, making it an ideal choice for a wide variety of applications. The pin bearing surfaces and selected sliding surfaces are induction hardened for extended wear life.
The Double Flex Chain offers a large sliding area to decrease shear on the chain and the sliding surface because design allows maximum flexibility for both horizontal and vertical movement.
This versatility allows compact layouts and economical cost. The mechanically designed cupped shape of the outer link plates of DF-3500 and DF-3910 eases side flex movement and protects rivet ends. This feature also prevents pin wear at the ends. DF-3498 offers flexibility with straight outer link plates.
The drawings shown are examples of just a few double flex chain styles. Many additional styles and configurations are available on a made-to-order basis. Sprockets are also available — split, solid, or bronze bushed.
Indicates this chain is normally stocked. All others are made-to-order.
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Item #

Center Bar Pitch

Side Bar Pitch

W - Inside Link Width

T - Sidebar Thickness

H - Sidebar Height

Average Tensile Strength

Maximum Allowable Load

DF-3498 N/A 1.750 in N/A 2.500 in N/A 0.640 in N/A 0.310 in N/A 1.400 in N/A 50000 lb N/A 4000 lb
DF-3500 N/A 2.500 in N/A 3.000 in N/A 0.630 in N/A 0.250 in N/A 1.250 in N/A 48000 lb N/A 4000 lb
DF-3910 N/A 3.000 in N/A 3.000 in N/A 0.630 in N/A 0.250 in N/A 1.250 in N/A 48000 lb N/A 4000 lb
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