13x21x5mm Non-Standard Ball Bearing ✨ 13mm x 21mm x 5mm - Rubber Sealed, Chrome Steel
This 13x21x5mm non-standard deep groove ball bearing is built with high-quality chrome steel and features rubber seals on both sides for protection from dust and debris. With its uncommon 13mm bore and ultra-slim 5mm width, it’s ideal for precision applications where standard bearings won't fit.
