This is a non-standard product specially used in FRC robots, fr8zz hexagonal bearings, is after our many technical improvements. Improved load bearing capacity, lower noise, heavy duty inner ring, heavy duty inner raceway, shielded ball bearings, thicker and stronger than other similar products. This bearing has more material between the hex hole and the raceway edge, making it stronger and less likely to crack under high loads. Recognized by our regular customers, the improved product has not experienced any failures. Now to meet the needs of our customers we are equipped with a large number of stock, for the convenience of the urgent need for users!