This 3 x 8 x 4 mm (693-ZZ) bearing is a metric deep groove ball bearing. The 693-ZZ inner diameter is 3 mm, the 693-ZZ outer diameter is 8 mm, the 693-ZZ width is 4 mm.
This bearing has non-contact metal shields on both sides to protect the bearing from dust or any possible contamination, which can extend bearing life, and retain the lubricant in the bearing.
NZ $1.60 each
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