Many years of working on and fixing different models of iRobot robots has allowed me to develop a very good working knowledge of one single issue that effects most robot owners over time.  That issue is the entry of debris into the brush gear assembly causing cleaning brushes to stop turning or the brush gear shafts to wear.

My Ball Bearing Modification uses only Sealed Ball Bearings.  If any of the bearings fail within the first 90 days I can offer a 50% replacement fee.  This set of ball bearings can be installed into the 4XX and 4XXX Roombas as well as the Red and Green CHMs.

                        *****Warning*****

The 3 sealed ball bearings will not directly install into a stock Red, Green, or Black CHM.  Drilling, cutting and filing of the gears and plastic case are required in order to install the bearings.  If you are considering a purchase of these ball bearings please consider the effort that will be required to install them.  Go to this URL and read about the procedure:

http://www.robotreviews.com/chat/viewtopic.php?f=1&t=11591

This set of Sealed Ball Bearings is not compatable with the 2 shielded ball bearings used in the Black CHM. 

You can send me your Black CHM and I can convert the CHM to a 3 ball bearing unit for the same fee I charge for performing the mod on the Red, and Green CHMs and Brush Decks from the 4th generation Roombas.  

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The Sealed Ball bearings prevent the entry of dust and debris into the ball bearings and the internal race.  The seals however, are not waterproof.  Do not expose these ball bearings to wet or damp environments.

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You can order just the 3 sealed ball bearing set for $25 including USPS shipping.  Just send payment via paypal and make sure to add your mailing address and a comment that you are ordering the bearing set.  If this is an international order then each 3 bearing set is $28 shipped.

Paypal = e_vickery@BellSouth.net

Now available, Instructional DVD that will show you how to disassemble your model 5XX Roomba.  The information contained displays how to take the Roomba apart all the way down to the Printed Circuit Board inside the Roomba.  Each DVD is $10 and shipping is free in the US.  Just make a paypal payment to   e_vickery@BellSouth.net also add a comment that you are ordering the 5XX DVD for Disassembly and the address you want it shipped to.

This DVD covers the complete procedure to remove the Cleaning Head Module from your 500 model Rooba, dis-assemble the CHM down to the brush gear assembly.  How to access the gears, clean them, install and lubricate them.  Remove the brush motor, dis-assemble the gear reduction motor, inspect and clean then lubricate. 

Also covered is the complete re-assemble process all the way back to installing the CHM into the Roomba.  This DVD is $10 and shipping is free in the US.  Send a paypal payment to e_vickery@bellsouth.net and mention the DVD you are wanting.