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Brushed motor + ceramic bearings ?.

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Brushed motor + ceramic bearings ?.

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Old 07-14-2019, 11:13 AM
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Default Brushed motor + ceramic bearings ?.

Just rebuilt a Kyosho Super stock 34 motor and had bunch of Ceramic bearings lying around so installed them on the motor, but after installation and testing the motor has less speed but sounds smoother ?,
Can Ceramic ball bearings affect the magnetic flux in a negative way on some motors and positive on others ?.
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Old 07-14-2019, 11:19 AM
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ceramic is non conductive. maybe the motor is not shimmed correctly?..
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Old 07-14-2019, 11:46 AM
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I will recheck the shims, Never had a motor go slower with ceramic before!. I am also wondering about the 34 degree timing on the motor, the box states that these are short life motors due to the advance 34 degree timing ?.
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Old 07-14-2019, 07:42 PM
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Brand new ceramic bearings require some break in time and as far as ceramics the balls are not magnetic however are conductive. Initial performance is based on the grease used, are these bearings metal shielded?. What abec rating are these? Ceramic bearings vary a lot even with rpm ratings. I would not use a abec 1 ceramic in a motor, need to be at least 5.
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Old 07-14-2019, 07:45 PM
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I would take the bearings out and check the seats make sure there is nothing causing the bearing to experience radial or axial binding, the bearing may not be flush in the seat.

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Old 07-14-2019, 08:44 PM
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Originally Posted by Juglenaut View Post
Brand new ceramic bearings require some break in time and as far as ceramics the balls are not magnetic however are conductive. Initial performance is based on the grease used, are these bearings metal shielded?. What abec rating are these? Ceramic bearings vary a lot even with rpm ratings. I would not use a abec 1 ceramic in a motor, need to be at least 5.
Im with this , requires break in

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Old 07-14-2019, 08:53 PM
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if motor is brushed then clean com. add new brushes and check springs.. I run a tops 2.5 turn and its good for 4- 134 foot runs. then cut com or clean. new brushes replace bearings reshim .check on dyno and run again.
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Old 07-16-2019, 01:13 AM
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I figured it out it was the shims and the bearings also needed to be broken in as well, thank you guys for the tips.
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Old 08-04-2019, 10:29 AM
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After some good break in the motor is a little screamer now, also need an extra Phenolic washer added to the other end of the can, made a big difference.
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Old 08-06-2019, 09:13 AM
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So this was a big help? I have a RB6.6 Kyosho with a stock Brushed motor i thought about changing to Ceramic bearings for shiz and giggles i may go forward now with it.
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Old 08-12-2019, 05:02 PM
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Originally Posted by Pesti13nce View Post
So this was a big help? I have a RB6.6 Kyosho with a stock Brushed motor i thought about changing to Ceramic bearings for shiz and giggles i may go forward now with it.
I also used SIN synthetic bearing oil as well, I use it with all my motor bearings, Also with RB5's I found that using low torque high speed motors was best for traction and stability, the Kyosho Super stocks are great Also I picked up a Kyosho Mad Science motor 27 stock that is a beast of a stock motor, the Mad Science motors have Huge 5x5 brushes that Deliver a lot of power to the comm, thanks to TA_Man for getting me on to the MAD Science 5x5 brush trail, I found 5x5 brushes that are used for drills on ebay for $3 for 5 pairs that work well! just need eyelits soldered on .
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Old 08-13-2019, 12:14 AM
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The bearings I use are Fast Eddy Ceramics as well, Only bearings I use anymore are fast eddy bearings.
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