how to change bench grinder wheel

How to Change Bench Grinder Wheel – Safe and Easy Instructions

If your bench grinder wheel is beginning to show signs of wear and tear, it’s time to take the necessary steps to get it replaced. Replacing the wheel can be a tricky job, but with the right instructions and precautions, it can be done safely and easily. In this blog post, we’ll outline the steps that will let you know how to change bench grinder wheel, from gathering the necessary tools and supplies to making sure the replacement wheel job is done correctly. So read on and start grinding in safety measures!

How to Change Bench Grinder Wheel? – Procedure

how to change bench grinder wheel

Bench grinder wheel replacement is always a dreaded task, but it doesn’t have to be. With the right instructions, the process can be safe and easy. Follow these steps:

Step 1: Unplug the Bench Grinder

Before unplugging the machine, be sure to turn off the power at the circuit breaker or fuse box and remove all debris from around the unit. Next, disconnect the power cord from the outlet and plug it into a different extension cord if necessary. Finally, use a wrench to unscrew each of the bolts that hold to the grinder cover plate. Then take off the cover plate by pulling up slowly until it comes off completely.

Step 2: Remove the Wheel Guard

Next, remove the wheel guard. On some models, the guard is held on by 2 screws and on others, it’s held in place with tension wires. If you can’t find screws or wire clips, use a hammer to tap gently around the perimeter of the guard until it releases. Once released, gently pry off old guards with a flat-head screwdriver.

Step 3: Loosen the Locknut on the Grinding Wheel Shaft

When the wheel on the grinder shaft becomes loose, it can become difficult to unscrew the locknut and replace the wheel. This tutorial will show you how to do this without any complications. Firstly, use a Phillips screwdriver to loosen the locknut by turning it anticlockwise. Make sure not to twist it too much as this could damage it further. Next, insert the new wheel into the hole on the shaft and tighten up the locknut with your adjustable wrenches using a 17mm wrench (or equivalent). Be careful while doing so, make sure not to drop or lose grip of the wire wheel! Finally, loosen (turn anticlockwise)the lock nut on the shaft by hand until it falls off in its original position. Keep an eye on the wheel while loosening the nut, if necessary hold onto the wheel with fingers whilst the wrench is being turned!

Step 4: Remove Old Wheel from Machine

Now that the wheel guard has been removed, the old wheel breakage can be easily removed from the type of grinder. Simply grasp the wheel with both hands and pull upwards until it comes free. Be careful not to lose any of the grinding material as this will require manual cleaning later on! Note: If there is significant damage to the speed grinder shaft, it may be best to call a technician in order to repair or replace the dull tools.

Step 5: Install New Grinding Wheel

If you have removed the old grinding wheel from your machine, follow these simple steps to install a new one:

  1. Make sure that all of the parts are assembled correctly and in proper working order. Check for any debris or lint located between the teeth of the grinder wheel and other moving parts. If anything is blocking your view, remove it with a vacuum cleaner or shop brush.
  2. locate an appropriately-sized replacement disk and place it on top of the spindle while turning it by hand. Always wear protective safety gloves and safety goggles when installing or removing disks from your machine!
  3. Securely fasten the disk to its mounting bracket using either screws or bolts.
  4. Turn the grinder wheel by hand in a clockwise direction until it is securely fastened to the spindle.
  5. Finally, tighten the lock nut on the shaft by hand until it falls off (in its original position). Be sure to watch out for debris while doing so!

Step 6: Replace the Wheel Guard

Step 6 of the DIY wheel-repair guide is replacing the wheel guard. To do this, you will need:

  1. Slide out the old wheel and replace it with a new one
  2. Remove the wheel guard by unscrewing it from the machine
  3. Before you start, make sure the machine is unplugged and the blades are off.
  4. Screw in the wheel guard and re-attach the blades

Step 7: Plug In Bench Grinder & Test New Wheels

Now that the wheel guard is in place, plug the bench grinder back into the backup power source and turn it on. Make sure to test the new wheels by grinding some small pieces of metal using a sharp object (a screwdriver or a coin). If there are any problems with your machine, don’t hesitate to call a technician!

Step 8: Clean Up Any Debris

Once the wheel grinder is operational, it’s important to clean up any debris that was left behind. Use a shop brush or a vacuum cleaner to remove any lint or debris from between the teeth of the wheel and the other moving parts.

Step 9: Test the Machine

To avoid any accidents, it is important to make sure the machine is properly secured before starting the job. Here are some safety tips to keep in mind:

  1. First of all, remove the broken blade by pulling it outwards carefully.
  2. Next, tilt and rotate the wheel so that its teeth mesh together perfectly, this will allow you to lock the wheel into place. Make sure it’s securely locked as this step prevents accidental starts. After that, plug in the machine and turn it on by rotating the original wheel clockwise until you hear a beep sound indicating that everything has been set up correctly.
  3. Finally, hold onto the wheel while turning it off so there’s no risk of accidentally starting anything up during the operation!

The Do’s and Don’ts for a Safe Grinding Wheel Replacement


The following are some tips to keep in mind when grinding wheel replacement:


  1. Always be careful when working with grinding wheels – take the necessary precautions to avoid any harm or damage.
  2. Make sure the wheel is correctly positioned and secured before starting to grind.
  3. Use a sturdy bench that can support the weight of the wheel, and always wear safety glasses and a dust mask while grinding!


  1. Never grind the polishing wheel if it’s not properly secured.
  2. Don’t over-speed the grinder – this can lead to accidents and damage the machine.
  3. Avoid grinding dust into your eyes or lungs – always wear safety gear when grinding!

Frequently Asked Questions

Which tools will I need to do this job myself?

In order to replace the bench grinder wheel yourself, you will need a screwdriver, wrench, and pliers. If you’re looking to change your bench grinder wheel job yourself, you will need the right power tools. You will need a belt sander or disc sander with medium-grit sandpaper and high-grit sandpaper. Additionally, you will need an electric drill and screwdriver, and some clamps. Remember to wear protective gear, such as eye protection, dust masks, and hearing protection.

How much will it cost to fix my machine if things go wrong while doing the job myself?

For a bench grinder type of wheel replacement job, expect to spend around $60. If you’re looking to do the job yourself, be prepared to purchase the essential tools and materials needed. Additionally, know that there is a chance of making mistakes while replacing the grinding wheel, this could add an additional cost to the repair bill.


Bench grinder wheel replacement is an easy task that can be completed by anyone with the right cutting tools and the right instructions. In this blog, we provide the easy steps needed to change the wheel on your bench grinder, as well as the safety tips to follow. So, if you’re looking to get your type of bench grinder wheel replaced for the safety of you and your crew, make sure to check out this blog for the instructions you need!

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