We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Dayton 3ZN11 shaft arbor with left-hand thread and flanged washers

Dayton

Dayton 3ZN11 shaft arbor 3/8-24 LH thread hand tool

SKU CH-5YN3-YP67M

Shaft arbor with 3/8-24 left-hand thread mounts buffing and finishing wheels on smaller fractional-horsepower motors

  • Fits 3/8 in motor shafts for secure wheel mounting
  • Left-hand 3/8-24 thread matches clockwise motor rotation
  • 1 1/8 in thread length provides firm engagement
  • Includes flanged washers and hex nut for complete assembly
  • 1/2 in maximum wheel width suits small finishing wheels

Shaft Arbor for Small Motors

The Dayton 3ZN11 shaft arbor fits a 3/8 in shaft and uses a 3/8-24 LH thread for clockwise rotation. It mounts buffing and finishing wheels on smaller fractional horsepower electric motors. The overall length is 2 in with a 1 1/8 in thread length and 1/2 in maximum wheel width. Flanged washers and a hex nut are included for assembly.

Socket Setscrew Simplifies Installation

A socket-type setscrew secures the arbor to the motor shaft without special tools. The left-hand thread tightens against clockwise rotation so the wheel cannot spin loose during use. Ensure the motor shaft diameter matches 3/8 in and the rotation is clockwise; a mismatch in either dimension or direction will prevent a safe fit.

Steady Operation Under Continuous Load

The flanged washers distribute clamping force evenly across the wheel face to maintain alignment during extended buffing cycles. Left-hand threading resists the loosening torque generated by sustained clockwise rotation. The 1/2 in maximum wheel width limits the contact surface, so the arbor is suited to lighter finishing tasks rather than heavy material removal.

Highlights

  • Fits 3/8 in motor shafts for secure wheel mounting
  • Left-hand 3/8-24 thread matches clockwise motor rotation
  • 1 1/8 in thread length provides firm engagement
  • Includes flanged washers and hex nut for complete assembly
  • 1/2 in maximum wheel width suits small finishing wheels

Specifications

BrandDayton

Questions about this item

How can I verify the arbor is running correctly after mounting a buffing wheel?

Secure the wheel with the flanged washers and hex nut, confirm the 3/8-24 LH thread engages fully, then start the motor — clockwise rotation matching the shaft direction means it is seated properly

What components are included and what must I supply?

The package provides the arbor, flanged washers and hex nut; you must supply the motor with a 3/8 in shaft and the buffing or finishing wheel up to 1/2 in wide

Which version should I choose for a small fractional-horsepower motor?

Choose the Small-type arbor with 3/8-24 LH thread, 1 1/8 in thread length and 1 1/4 in washer OD — it is made for that motor class and wheel width

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.