R-1340 Open Miniature 4x13x5mm Bearing

R-1340 open miniature deep groove ball bearing
✔️ 4mm x 13mm x 5mm chrome steel open bearing

This R-1340 miniature open-style bearing is made from durable chrome steel and offers smooth, low-friction rotation for small devices, instruments, hobby motors, and compact mechanisms where space is tight and speed is high.

✅ Inner diameter: 4mm
✅ Outer diameter: 13mm
✅ Width: 5mm
✅ Type: deep groove ball bearing
✅ Material: chrome steel
✅ Closures: open
✅ Dynamic load rating Cr: 1,300 N
✅ Static load rating Cor: 490 N
✅ Grease limiting speed: 44,000 RPM
✅ Oil limiting speed: 54,000 RPM
✅ Quantity: one bearing

💡 Why are miniature open deep groove bearings used in small high-speed mechanisms?
Their compact open design keeps friction low, helping tiny components spin freely at high RPM.

• Supports fast rotation in micro-motors and instruments

• Reduces drag in lightweight mechanisms

• Helps maintain smooth operation in tight assemblies

A handy choice when your small machinery needs clean, fast, reliable motion in a compact size.