2RS ベアリング17x28x7mm -Sealed ボール ベアリング

Sealed 17x28x7mm ball bearing for bicycle hubs
✔️ 1x 17x28x7 mm, chrome steel, non-contact seals, pre-lubed

The 17287-2RS Bearing is a precision-sealed deep groove ball bearing built for bicycle hubs and cycling components. It features chrome steel balls, non-contact rubber seals, and pre-lubrication for smooth, maintenance-free operation in wet or dusty rides.

✅Inner diameter：17 mm
✅Outer diameter：28 mm
✅Width：7 mm
✅ Deep groove design for stable radial support
✅ Chrome steel balls and rings for durability
✅ Nylon cage for quiet, low-friction performance
✅ C0~C3 clearance for optimal fit
✅ Non-contact rubber seals to keep out contaminants
✅ Pre-lubricated with grease - maintenance-free
✅ Ideal for bicycle hubs and other rolling components
Quantity: Quantity: ベアリング1個

💡 自転車のハブにおいて、sealed はどのような役割を果たしているのでしょうか？

Handy overview for common wheel questions:

- Reduces dirt intrusion and moisture exposure to extend hub life
- Provides smooth, quiet rotation with low friction for reliable performance
- Pre-lubrication minimizes maintenance and downtime in rough conditions
- Suitable for bicycle hubs and other small rolling assemblies