This 4 x 16 x 5 mm (634-ZZ) bearing is a metric deep groove ball bearing. The 634-ZZ inner diameter is 4 mm, the 634-ZZ outer diameter is 16 mm, the 634-ZZ width is 5 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
In stock for delivery within 1 working day