This step by step guide will show you how to change the bearings on your R2
The tools you will need are shown below
Circlip remover ( Or 2 flat head screw drivers)
M8 socket head bolt (or anything of similar size)
Step 1. Remove the bolts on the outwheel to remove the outwheel (make sure to save them for later)
These motors were used in extremely salty and wet conditions and never maintained, hence the bearing needing to be changed (make sure to maintain your boards!)
Step 2. Remove the axle nut and washer and save
Step 3. Using a circlip remover or two screw drivers ( harder) Remove the large clip in near the phase leads
Step 4. Place the M8 socket head bolt (or equivalent) in the external bearing as shown below
Step 5. Lightly hammer the socket head with the rubber mallet to puch the stator through the other end of the motor can until the socket head is flush with the bearing wall
Step 6. Flip the M8 bolt upside down and repeat the process until the main 6810 bearing is exposed enough to pull off by hand
Step 7. Pull the bearing/stator out of the can by hand
Step 8. Place the stator/bearing combo on the edge of a table or similar surface and tap the aluminum heat sync face all around evenly with the mallet until the bearing comes off
Step 9. The replacement bearing you will need is a 6810- 2rz, Place the bearing on top, and light tap it in with a rubber mallet evenly on the inner bearing ring to avoid damage. It should not require too much effort to insert if done correctly. Insert until clip channel is exposed.
Step 9.5. Now would be the time to change the external bearing if you needed to as well. That bearing is 6902- 2rz
Step 10. Place the new bearing/stator assembly into the motor can, be very careful as the magnets in the R2 can are extremely strong and can pinch your fingers. Refrain from pulling on the phase leads as you will damage them.
Step 11. Lightly tap to guide the stator back into the external bearing as well as the large bearing back into the motor can.
Step 12. Replace the clip and reinstall on to your R2 truck.
When reinstalling make sure to tighten the axle nut to the correct spec, following this video will help with that https://enertionboards.zendesk.com/hc/en-us/articles/333756997256-How-do-I-add-the-correct-amount-of-torque-to-my-axle-nuts-
This video will help with removing and reinstalling the motor https://enertionboards.zendesk.com/hc/en-us/articles/333757009075-How-to-change-your-motor