How to Remove Rear Wheel Bearing Motorcycle: The Ultimate DIY Guide

Replacing a rear wheel bearing on your motorcycle is a common maintenance task that can be daunting for novice mechanics. However, with the right tools, knowledge, and a bit of patience, you can tackle this job yourself and save money on professional labor. This comprehensive guide will walk you through the process of removing a rear wheel bearing on your motorcycle, providing clear instructions and helpful tips along the way.

Gather Your Tools and Supplies

Before you start, ensure you have all the necessary tools and supplies. Here’s a list of what you’ll need:

• Motorcycle Service Manual: This is essential for specific instructions and torque specifications for your motorcycle model.
• Hydraulic Press: A hydraulic press is crucial for safely removing and installing the bearings.
• Bearing Race and Seal Puller: This tool is used to remove the bearing races and seals from the hub.
• Torque Wrench: A torque wrench is essential for tightening bolts and nuts to the correct specifications.
• Socket Set: You’ll need various sizes of sockets for removing bolts and nuts.
• Wrench Set: A set of wrenches is useful for loosening and tightening bolts.
• Hammer: A rubber mallet or a soft-faced hammer is needed for tapping on components.
• Penetrating Fluid: Use penetrating fluid to loosen stubborn bolts and nuts.
• Clean Rags: Keep your work area clean and free of debris.
• New Rear Wheel Bearing: Order the correct size and type of bearing for your motorcycle.

Preparing Your Motorcycle

1. Park Your Motorcycle on a Level Surface: Ensure the motorcycle is securely parked on a level surface with the kickstand down for stability.
2. Remove the Rear Wheel: Follow your motorcycle’s service manual to remove the rear wheel. This usually involves loosening the axle nut, removing the brake caliper, and carefully sliding the wheel off the axle.
3. Clean the Area: Use a clean rag and a degreaser to thoroughly clean the area around the hub and swingarm where the bearing is located. This will help you see what you’re doing and prevent dirt from contaminating the new bearing.

Removing the Rear Wheel Bearing

1. Remove the Axle Nut: Use a socket wrench and a breaker bar to loosen and remove the axle nut. Note the orientation of the axle nut and any washers.
2. Remove the Axle: Carefully slide the axle out of the swingarm and hub.
3. Remove the Spacer (If Applicable): Some motorcycles have a spacer between the hub and the swingarm. Remove this spacer if present.
4. Remove the Bearing Races: Use a bearing race and seal puller to remove the inner and outer bearing races from the hub.
5. Remove the Bearing: With the races removed, the bearing should slide out easily. If it’s stuck, use a gentle tap with a rubber mallet to dislodge it.

Inspecting the Old Bearing

Once you’ve removed the old bearing, inspect it for signs of wear and tear. Look for:

• Grooves or Pits on the Bearing Races: These indicate that the bearing has been worn down.
• Roughness or Flaking on the Bearing Balls: This signifies that the bearing is no longer smooth and may cause noise or vibration.
• Rust or Corrosion: Rust or corrosion can compromise the bearing’s performance and lead to premature failure.

If you notice any of these signs, it’s essential to replace the bearing.

Installing the New Rear Wheel Bearing

1. Clean the Hub and Swingarm: Thoroughly clean the hub and swingarm where the bearing will sit. Make sure there are no burrs or rust that could damage the new bearing.
2. Install the New Races: Use the bearing race and seal puller to install the new inner and outer races into the hub. Ensure they are seated properly.
3. Install the New Bearing: Carefully install the new bearing into the hub. Use a gentle tap with a rubber mallet to seat it securely.
4. Install the Axle and Spacer: Slide the axle back into the swingarm and hub. If you had a spacer, reinstall it.
5. Install the Axle Nut: Thread the axle nut back onto the axle and tighten it to the specifications in your motorcycle’s service manual.

Final Steps

1. Install the Rear Wheel: Slide the rear wheel back onto the axle, ensuring it is properly aligned and seated.
2. Install the Brake Caliper: Reinstall the brake caliper and ensure the brake pads are properly aligned with the rotor.
3. Tighten the Axle Nut: Tighten the axle nut to the specified torque using your torque wrench.
4. Test Ride: Take your motorcycle for a short test ride to ensure everything is working correctly. Listen for any unusual noises and check for any signs of vibration.

Final Thoughts: A Smooth Ride Ahead

By following these steps, you can confidently remove and replace the rear wheel bearing on your motorcycle. Remember to refer to your motorcycle’s service manual for specific instructions and torque specifications. With proper maintenance and care, your motorcycle will continue to provide you with many miles of smooth and enjoyable riding.

Common Questions and Answers

Q: What are the signs of a bad rear wheel bearing?

A: The most common signs of a bad rear wheel bearing include:

• Noises: A grinding, roaring, or humming sound, especially when accelerating or braking.
• Vibration: A noticeable vibration in the rear wheel or handlebars.
• Play in the Wheel: Excessive movement or play in the rear wheel when it’s lifted off the ground.

Q: How often should I replace my rear wheel bearing?

A: The frequency of rear wheel bearing replacement depends on factors such as riding conditions, maintenance habits, and the quality of the bearing. Generally, you should inspect your bearings every 10,000 to 15,000 miles or every year, whichever comes first.

Q: Can I reuse the old bearing races?

A: It’s generally not recommended to reuse old bearing races. The races can become damaged or worn, and reusing them could lead to premature failure of the new bearing.

Q: What type of grease should I use for the new bearing?

A: Use a high-quality bearing grease that is specifically designed for motorcycle wheel bearings. Consult your motorcycle’s service manual for the recommended type of grease.

Q: How do I know what size bearing to buy?

A: Refer to your motorcycle’s service manual or contact a local motorcycle parts dealer for the correct size and type of bearing for your specific model. You can also look up the bearing number on the old bearing.