Quote:
Originally Posted by E-Revonut
I need to get some bearings myself, for my Tekno Neu. What would be the best? I know they're 5x13x4. Should I go ceramic? Abec 5 is better than 3 right?
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For very high revs, you need a bearing with small tolerances, so ABEC 5 is better than 3. The ceramic balls will have less drag.
Engine and motors are two of few applications where I would NOT use 0.99$ bearings.
Jerry, if they are steel shielded, they are not really sealed. If you want rubber shields that can handle high revs, you need non-contact rubber seals. These are often used in front engine bearings, along with low-friction cages and high-temperature grease.
I have had five different specifications of 5x10x4 mm bearings (for clutches) from the same manufacturer, and different they were.