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Steel keyless bushing, oil-dipped finish, single nut locking assembly

Fenner Drives

Fenner Drives 6202320UP Keyless Bushing 1 1/4in Shaft 2in OD

SKU CH-S32H-1A15M

Keyless bushing for 1 1/4 in shaft with 2 in outside diameter transmits up to 500 ft-lb torque

  • Keyless locking eliminates keyway machining for 1 1/4 in shaft
  • Single-nut design simplifies installation and removal on 2 in OD
  • Transmits up to 500 ft-lb torque without keys
  • Hub contact pressure rated at 800 psi for secure grip
  • Oil-dipped steel finish protects against corrosion in harsh environments

Keyless Bushing for 1 1/4in Shaft

The Fenner Drives 6202320UP is a steel single-nut locking assembly designed to secure a 1 1/4 inch shaft within a 2 inch outside diameter hub. It transmits up to 500 ft-lb of torque while generating 7,800 psi hub contact pressure. The oil-dipped finish protects the steel surfaces. Overall width measures 2.25 inches with an outside diameter tolerance of +/- 0.003 inches.

Maintenance Teams Needing Keyless Mounting

This bushing suits maintenance crews and machine builders who want to eliminate keyways, set screws or shrink-fit processes on inch-dimensioned shafts. The single-nut design allows rapid installation and removal using standard hand tools. It is not intended for applications requiring flange-mounted bushings, metric shaft sizes or torque capacities exceeding the rated 500 ft-lb limit.

Torque Capacity and Hub Pressure Limits

The assembly comfortably handles power transmission duties up to 500 ft-lb of transmitted torque. Hub contact pressure reaches 7,800 psi at that rating, defining the mechanical headroom for the connected hub material. Operation beyond the stated torque value or on hubs with insufficient wall thickness to contain the pressure will exceed the design envelope.

Highlights

  • Keyless locking eliminates keyway machining for 1 1/4 in shaft
  • Single-nut design simplifies installation and removal on 2 in OD
  • Transmits up to 500 ft-lb torque without keys
  • Hub contact pressure rated at 800 psi for secure grip
  • Oil-dipped steel finish protects against corrosion in harsh environments

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter must I already have for the 6202320 bushing to fit?

The bushing is made for a 1 1/4 in shaft, so that exact bore is required for the keyless lock to engage.

Will the 2 in outside diameter and 7,800 psi hub pressure work with an existing steel hub of the same size?

Yes, the 2 in OD with a +/- 0.003 tolerance matches standard hub bores, and the 7,800 psi contact pressure is within typical steel hub limits.

How can I confirm the assembly is transmitting the rated 500 ft-lb after installation?

Tighten the single nut to the specified torque, then verify zero angular slip under load and check that the flange faces remain fully seated.

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