Bicycle bearing all abouts, most of the Bicycle bearing has rubber seals to protect the bicycle bearing from dirt, dust or any possible contamination, Bicycle bearing are lubricated with grease, you can always remove the seals, relubricate the sealed Bearing with grease then put the seals back again. Bicycle bearing has item number ends with 2RS which stands for 2 rubber seal enclosures.
 686 Full Ceramic Bearing 6x13x3.5 Code: Kit8263 Price: $59 |
 Set of 8 Full Ceramic High Speed Skateboard Bearing ZrO2/Si3N4 Code: kit8295 Price: $199 |
689 Full Ceramic Bearing 9x17x5 Code: Kit8327 Price: $49 |
 6202 Full Ceramic Bearing 15x35x11 Si3N4/PTFE Code: Kit8328 Price: $125 |
 Full Ceramic Bearing 21.5x31x7 (6804 Modified) Code: Kit7757 Price: $99 |
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