7x16x5mm 非標準ミニチュアベアリング7mm x 16mm x 5mm

7x16x5 open ball bearing
✔️ chrome steel deep groove design for RC engines

This single 7mm x 16mm x 5mm open ball bearing is precision-built from chrome steel for high-speed RC engines and small machinery. Commonly used in Rossi .21 front engines, it provides smooth operation and excellent durability under high RPM performance.

✅ Size: 7mm inner diameter x 16mm outer diameter x 5mm width
✅ Type: open deep groove ball bearing
✅ Material: chrome steel
✅ Application: Rossi .21 front engine / RC model use
✅ Dynamic load rating: 1,600 N
✅ Static load rating: 710 N
✅ Limiting speed (grease): 42,000 RPM
✅ Limiting speed (oil): 50,000 RPM
✅ Pack size: one bearing

💡 Why use open chrome steel bearings in RC engines?
They deliver top-speed performance with minimal drag.
- Run smoothly at very high RPMs
- Allow easy re-lubrication for maintenance
- Ideal for engines, gearboxes, and small motor shafts

高速回転する高精度ベアリングが、あなたのRC エンジンを唸らせ、クリーンで、タフで、アクションに適した状態に保ちます。