R188ZZ Ball Bearing 1/4" x 1/2" x 3/16" - Miniature - Shielded

R188ZZ Miniature Ball Bearing
✔️ 1/4" ID - 1/2" OD - 3/16" Wide

This R188ZZ miniature bearing is a go-to choice for smooth, precise motion in tight spaces. Built with chrome steel and sealed on both sides with metal shields, it's perfect for RC motors, yo-yos, and delicate instruments. Comes pre-greased, so it's ready to drop into action.

✅ Type: Deep groove ball bearing
✅ Inside diameter: 1/4 inch
✅ Outside diameter: 1/2 inch
✅ Width: 3/16 inch
✅ Shields: Double metal (ZZ)
✅ Material: Chrome steel
✅ Grease: Factory pre-lubricated
✅ Dynamic load: 108.2 KGF
✅ Static load: 44.2 KGF
✅ Sold as: 1 bearing
✅ Alternate part numbers: R188-2Z, R188ZZ
✅ Popular in: X-Con, NM2, Dark Magic, Hitman, Big Ben, and other high-performance yo-yos