Turbo Wood Lathes FAQ: Changing the Spindle and Bearings

Created by Gabriel Izzo, Modified on Tue, 2 Jun at 1:52 PM by Gabriel Izzo

Turbo Wood Lathes · FAQ

Changing the Spindle and Bearings

Applicable Models

Harvey Turbo T-40 Wood Lathe

Harvey Turbo T-60S Wood Lathe

The spindle disassembly procedure for the Turbo T-40 and T-60S involves several steps requiring specific tools and careful handling. The guide and video below cover both models — the procedure closely aligns between them due to similar design principles, though specific details may vary slightly.

Spindle & Bearing Replacement Video

Turbo T-60S · full disassembly & reassembly walkthrough

Spindle & Bearing Replacement — T-60S

⚠ Safety — Read Before Beginning

Wear appropriate PPE — safety glasses to protect your eyes from debris, and nitrile or similar gloves to protect your hands and keep them clean during disassembly.

Disconnect the lathe from the power source and confirm it is fully discharged by attempting to start it without power before beginning any disassembly.

Keep all removed parts in a safe, organized manner to ensure nothing is lost and reassembly goes smoothly.

Work in a clean, well-lit area to prevent accidents and avoid losing small components.

⚠

If using dry ice: Dry ice (solid CO₂) reaches temperatures of approximately −78°C (−109°F) and will cause severe frostbite on contact with bare skin. Always wear cold-resistant (cryogenic) gloves when handling dry ice. Never allow dry ice to contact skin directly, and handle it only with appropriate insulated tools or gloves. Work in a well-ventilated area as dry ice sublimates to CO₂ gas.

? Tip — If the Pulley or Hand-Wheel Is Stuck on the Shaft

Moisture in the shop environment can cause the steel spindle shaft to corrode over time, which may cause the hand-wheel or drive pulley to bind tightly on the shaft and resist removal.

If this occurs, try the following approaches in order:

Apply a penetrant lubricant such as WD-40 or a similar penetrating oil into the pulley set screw holes and along any accessible gap between the pulley/hand-wheel and the shaft. Allow it to soak for several minutes before attempting removal.

If penetrant alone doesn't work, use dry ice to cool the shaft — applying dry ice directly to the spindle shaft will cause it to contract slightly due to thermal shrinkage, which can be enough to break the corrosion bond and allow the pulley or hand-wheel to slip free. This approach can be more effective than lubricants and force alone, and helps avoid unnecessary damage that can result from forcing the component off. See dry ice safety note above before proceeding.

Tools Required

■ Rubber Hammer ■ Crescent Wrench (45–52mm) ■ Flat Head Screwdriver ■ 3mm Hex Wrench ■ Spindle Positioning Rod ■ 4mm Hex Wrench

Required Tools Reference Diagram

Required tools for spindle and bearing replacement

Disassembly Procedure

Prepare Your Workspace and Tools

Disconnect the lathe from the power source and confirm no power remains.

Gather all required tools and ensure the workspace is clean and well-lit.

Open the Access Door & Loosen the Drive Belt

Before proceeding with spindle disassembly, ensure the drive belt is loose to prevent any tension that might complicate the process.

Step 2 — Loosen Drive Belt

Loosen the Spindle Lock Nuts

● T-60S: 2 lock nuts (rear thin + front thick) ● T-40: 1 lock nut only

Use the flat head screwdriver to align the teeth of the toothed spacer.

Insert the spindle positioning rod into the spindle hand-wheel hole with your left hand.

Use the crescent wrench on the slot of the rear spindle lock nut (thin). Apply simultaneous force: clockwise with the left hand, counterclockwise with the right to loosen. On the T-60S, repeat for the front nut (thick) — the T-40 has only one nut.

Due to the spindle pulley, the nuts may not fully disengage from the threads — this is expected and not a concern.

Step 3 — Remove Spindle Lock Nuts

Remove the Spindle Hand-Wheel

Loosen the spindle hand-wheel tightening screw using a 4mm hex wrench. Note there are two screw positions 180° apart.

Step 4 — Remove Spindle Hand-Wheel

Removing spindle hand-wheel tightening screw

Loosen the Spindle Pulley Set Screws and Extract the Pulley Key

Use a 3mm hex wrench for the spindle pulley tightening screws. There are two positions at 90° from each other, with two screws at each position (four screws total).

T-40 Specific Pulley Key Extraction — T-40 Only

Once the four set screws are removed, shift the pulley to the left.

Use a small tool such as a 2mm hex wrench inserted into the keyway from the right side to push the pulley key to the left of its slot as far as possible.

Shift the pulley all the way to the right, then extract the pulley key out of its recessed slot.

Once the pulley key is out and the lock nut is fully loosened and no longer threaded onto the shaft, proceed to tap the spindle out of the housing from the hand-wheel side (see Step 6).

Step 5 — Loosen Spindle Pulley Set Screw

✓

Gently Tap the Spindle and Disassemble

Use a rubber hammer to gently tap the left end of the spindle until it exits the spindle housing. Remove all parts sequentially.

Take special care not to lose the key on the spindle pulley during removal.

The spindle and the two front bearings are integrated — handle them as a single unit.

Step 6 — Tapping the Spindle Free

Tapping spindle out of housing with rubber hammer

Step 6 — Spindle and Bearing Assembly Removed

Spindle and integrated front bearing assembly removed

For model-specific details or if your lathe has unique features not covered here, refer to the instruction manual or please contact our support team.