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

💡 Why choose a miniature shielded bearing over an open one?

Shields keep dust and debris out - especially important in fast-moving, compact setups.
They help hold lubrication inside, cutting down on maintenance.
That combo makes them perfect for RC toys, micro motors, and precision spinners.

If you want tight tolerance and zero drama in small spaces, grab this bearing now - your gear will thank you later.