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Dayton 6HJ79 flange coupling kit 1.75 in 56C cast iron with hardware

Dayton

Dayton 6HJ79 Flange Coupling Kit 1.75 in 56C

SKU CH-T0B3-Q7TJR

Connects a 56C NEMA frame motor to a Dayton worm reducer with a 1.75 in center distance using cast iron flanges and included hardware

  • Designed for 56C NEMA frame motors
  • Worm center distance 1.75 in for precise alignment
  • Cast iron flex coupling handles high torque loads
  • Includes mounting hardware for quick installation
  • Keyway dimensions 3/32 in depth by 3/16 in width match standard shafts

Dayton 6HJ79 Flange Coupling Kit

This Dayton 6HJ79 Flange Coupling Kit connects a 56C NEMA frame motor to a Dayton indirect-drive right-angle speed reducer. It is intended for maintenance teams and OEM assemblers who need a direct replacement coupling for worm-center-distance equipment. The kit includes all mounting hardware required for installation.

1.75 in Worm Center Distance Capacity

The coupling is rated for a 1.75 in worm center distance and fits both motor and reducer bores of 5/8 in with 3/16 in keyway width and 3/32 in keyway depth. It handles the torque transmitted through this frame size and center distance. Applications requiring a different center distance or larger bore diameters will need a different coupling kit.

Cast Iron Flex Coupling Build

The flex coupling is made from cast iron, providing rigidity and wear resistance in power-transmission service. Both hubs share the same bore and keyway dimensions, simplifying alignment during assembly. Mounting hardware is supplied in the kit, so no separate fastener sourcing is needed. California Proposition 65 warnings apply for cancer and reproductive harm.

Highlights

  • Designed for 56C NEMA frame motors
  • Worm center distance 1.75 in for precise alignment
  • Cast iron flex coupling handles high torque loads
  • Includes mounting hardware for quick installation
  • Keyway dimensions 3/32 in depth by 3/16 in width match standard shafts

Specifications

No published specifications for this item yet.

Questions about this item

Will the 56C motor frame and 5/8 in bore match the reducer I already have?

The kit is built for a 56C NEMA frame motor and both the motor and reducer couplings use a 5/8 in bore with 3/16 in keyway width and 3/32 in keyway depth.

How can I confirm the coupling is aligned correctly after installation?

Check that the motor and reducer shafts sit flush in the 5/8 in bores, the keys engage the 3/16 in keyways, and the cast iron flex element turns freely without binding.

Does the kit include the mounting bolts or do I need to order them separately?

The supplier description states the kit includes mounting hardware, so the required bolts are supplied in the box.

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