This 1/4 x 1/2 x 3/16 inch (R188-ZZ) bearing is an imperial deep groove ball bearing. The R188-ZZ inner diameter is 1/4 in (6.35 mm), the R188-ZZ outer diameter is 1/4 inch (12.7 mm), the R188-ZZ width is 3/16 in (4.775 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 $3.20 each
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