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Dayton 3ZN13 motor shaft arbor with hex nut and machined washers

Dayton

Dayton 3ZN13 AL-5-L Motor Shaft Arbor 5/8 in Heavy Duty Machined Washer

SKU CH-7PKJ-T0RA7

A heavy-duty shaft arbor for mounting buffing and finishing wheels on electric motors

  • Fits 5/8 in shafts for secure motor mounting
  • Heavy-duty machined washers distribute load evenly
  • Left-hand 1/2-20 thread prevents loosening under rotation
  • Includes hex nut and socket setscrew for complete installation
  • 6 1/4 in overall length suits fractional horsepower motors

Motor Shaft Arbor for Small Motors

The Dayton 3ZN13 AL-5-L arbor mounts buffing and finishing wheels onto electric motors with a 5/8 inch shaft. It is built for smaller fractional horsepower units and includes a machined washer and hex nut for secure attachment. The heavy-duty construction suits workshop tasks that require a reliable wheel-holding interface.

Fits 5/8 Inch Shafts Only

This arbor suits mechanics and maintenance staff who need to fit wheels to a 5/8 inch motor shaft with a 1/2-20 left-hand thread. It will not work for builders who need a different shaft diameter, thread pitch or rotation direction. Buyers with larger industrial motors should look at a different arbor.

Thread Length 2 1/4 Inches

The 2 1/4 inch thread length and 1 1/2 inch washer diameter handle wheels up to 1 11/16 inch wide. Overall length reaches 6 1/4 inches, giving enough engagement for standard buffing jobs. Wider wheels or longer shaft extensions exceed the available thread and washer capacity.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 56% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameDAYTON

Questions about this item

What shaft diameter must my motor have for the 5/8 in arbor to fit?

The arbor fits a 5/8 in motor shaft, so the motor shaft must measure exactly 5/8 in.

Will the 1/2 in.-20 LH thread engage the same nuts used on standard right-hand spindles?

No, the thread is left-hand, so it only works with matching left-hand nuts; standard right-hand nuts will not engage.

How can I confirm the setscrew is holding the wheel securely after installation?

Tighten the socket setscrew against the flat of the shaft, then try to rotate the wheel by hand — it should not move.

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