I bought these bearings to use with an alignment block and coin ring press. Arrived in excellent condition, no rust or defects. I'm pretty sure they weren't specifically designed for that. Bearings are mainly used for high pressure, high temperature and high friction machinery. They should last forever as I use them or until I drop one of them and it rolls down to connect to my missing socks.
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
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