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Carbon steel rigid coupling, one-piece, 1.74 in clearance, 2280 in-lb torque

Dayton

Dayton 3ZN60 Rigid Steel Coupling 1.74 in Clearance 2280 in-lb Torque

SKU CH-FPEF-AH63G MPN 3ZN60

Rigid steel coupling joins two 1.74 in clearance shafts with 2280 in-lb torque capacity at up to 4000 RPM

  • TypeDrain Components
  • Rigid carbon-steel construction resists deformation under load
  • 2 280 in-lb torque capacity handles heavy-duty power transmission
  • 74 in clearance fits compact shaft arrangements
  • 4 000 RPM rating supports high-speed operation
  • One-piece design eliminates backlash and simplifies installation

Rigid Steel Coupling 2280 in-lb

The Dayton 3ZN60 is a one-piece carbon steel coupling designed for power transmission between shafts. It accepts round keyed bores of 1 7/8 in and 2 7/8 in with matching keyways. The unit is rated for a maximum torque of 2,280 in-lb and speeds up to 4,000 RPM.

Build Integration 1.74 in Clearance

This coupling requires a 1.74 in clearance diameter and fits within a 1 5/8 in outside diameter. Its 2 1/2 in overall length defines the axial space needed between connected equipment. The rigid one-piece construction eliminates backlash and maintains precise alignment without flexible elements.

Suited For Fixed Alignment Shafts

Ideal for connecting shafts in industrial drives where zero backlash and high torque capacity are required. Not suitable for applications needing misalignment compensation, vibration damping, or axial movement absorption. Buyers requiring flexible or jaw-type couplings should consider alternative designs.

Highlights

  • Rigid carbon-steel construction resists deformation under load
  • 2 280 in-lb torque capacity handles heavy-duty power transmission
  • 74 in clearance fits compact shaft arrangements
  • 4 000 RPM rating supports high-speed operation
  • One-piece design eliminates backlash and simplifies installation

Specifications

TypeDrain Components
BrandDayton
Model3ZN60

Questions about this item

What is the maximum torque the 3ZN60 coupling can transmit before failure?

The carbon-steel rigid coupling is rated for a maximum torque of 2,280 in-lb.

How hot or loud does the coupling get when running continuously at 4,000 RPM?

As a solid one-piece steel component it generates no noise of its own and its temperature follows the shafts it connects.

Which shaft sizes and keyway dimensions must already match for this coupling to fit?

It requires two round keyed bores of 1 7/8 in and 2 7/8 in with keyways 3/32 in deep by 3/16 in and 3/16 in wide respectively.

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