When used in a home made hammer they work great. My only criticism is that they don't tighten the grease fittings, as I found out when I filled them up.
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review
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π§ High-Quality TIMKEN 6203 2RSC3 6203 2RS Bearing - Size: 17X40X12mm
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