Getting Frejoth 12-Speed Drill Press Motor Replacement Right: Fit, Tools, and Final Checks
The Frejoth 12-speed is one of many import benchtop presses sold under changing names, and when the motor quits, the challenge is not the swap but the sourcing, because a model like this rarely has a branded replacement motor on the shelf. Getting a Frejoth 12-speed drill press motor replacement right means matching a generic motor to the original’s specs, since you will almost certainly fit a universal motor rather than a factory one.
The motor is the single-phase electric drive that turns the spindle through the belt and its 12-speed pulley steps. Replacing it means fitting a motor that matches the shaft, mounting, power rating, and wiring of the original so it bolts up, drives the pulleys, and keeps the speed chart accurate.
Short answer: read the old motor’s plate for shaft, RPM, horsepower, frame, and voltage, confirm the motor is truly dead rather than a bad capacitor or switch, then match those specs with a universal replacement and expect to adapt the mount.
Sourcing reality for an import press
A Frejoth-badged motor is unlikely to be stocked, so plan to match, not brand-match:
- Read every spec off the old motor’s plate; that plate, not the press name, is what you match.
- Expect to fit a universal single-phase motor of the same rating.
- Note the shaft diameter and mounting, since import brackets vary.
- Keep the RPM the same so the 12-speed chart still holds.
Diagnose before buying
- Hums but spins by hand: a failed start capacitor, a far smaller fix.
- Silent: check the switch and cord first.
- Burned smell or tripped breaker: the motor itself is likely finished.
The motor to match against
When the motor is truly dead, a 1/2 HP 1725 RPM single-phase motor is a common size for benchtop presses and a solid target to match the plate against. Confirm the shaft diameter, frame, and mounting against your old motor before ordering.
The honest drawback: an import bracket rarely matches a universal motor base exactly, so expect to adapt the mount or rebore the pulley if the shaft size differs. Who should skip a new motor: anyone whose fault is the capacitor or switch.
Fitting it, step by step
- Unplug the press.
- Confirm the diagnosis, capacitor, switch, or motor.
- Record the old motor’s shaft, RPM, horsepower, frame, and voltage.
- Remove the belt, unbolt the old motor, and transfer the pulley if the shaft matches.
- Bolt on the matched motor, adapting the bracket, and wire it correctly through the switch.
- Set belt tension to about half an inch of deflection and confirm rotation.
Final checks
- Motor bolts to the bracket without strain.
- Pulley fits the shaft and lines up with the spindle pulley.
- Wiring matches your voltage and the rotation is correct.
- All 12 speeds run smoothly with tension set.
Match the plate, adapt the mount
Replacing a Frejoth 12-speed motor is a matching exercise, not a brand hunt. Read the plate, confirm the motor is dead, fit a universal motor to those specs, and adapt the mount. Keep the RPM the same and the 12-speed chart stays true.
Three takeaways:
- Match a universal motor to the old plate; a branded Frejoth motor is unlikely to be stocked.
- Rule out the capacitor and switch before replacing the motor.
- Keep the RPM the same and expect to adapt the import bracket.
FAQ
Can I get a factory Frejoth motor? Unlikely. Import presses like this rarely have branded replacement motors stocked, so you match a universal motor to the old motor’s plate specs.
What motor specs do I match? Shaft diameter, RPM, horsepower, frame, and voltage, all read off the old motor’s plate. That plate, not the press name, is what you match.
How do I know the motor is dead? If it hums but spins by hand, suspect the capacitor. If it is silent, check the switch and cord. A burned smell points to the motor itself.
Will a universal motor bolt right on? Rarely a perfect match. Expect to adapt the bracket or rebore the pulley if the new shaft diameter differs from the original.
Do I have to keep the same RPM? Yes, to keep the 12-speed chart accurate. A different motor speed changes every pulley-step speed.
Can I reuse the old pulley? Yes, if the new shaft diameter matches. If it differs, fit a pulley bored to the new shaft.
References
- Grizzly Industrial, drill press motor specifications reference: https://www.grizzly.com/products/grizzly-motor-1-2-hp-single-phase-1725-rpm-odp-110v-220v-for-g4008-09/h5373
- VintageMachinery.org, benchtop drill press documentation: http://vintagemachinery.org
