NK45/20 Needle Roller 45x55x20mm 機械加工タイプ

NK45/20 Needle Roller Bearing
✔️ Machined Roller Bearing Without Inner Ring 45mm x 55mm x 20mm

This NK45/20 machined needle roller bearing is a handy choice for compact setups that use a hardened shaft as the raceway. With no inner ring, it keeps the assembly slim while providing strong load capacity for transmissions, power tools, and industrial machinery. Sold as one bearing.

✅ Inner diameter 45mm
✅ Outer diameter 55mm
✅ Width 20mm
✅ Machined needle roller construction
✅ Without inner ring
✅ Dynamic load rating 5100 N
✅ Static load rating 5800 N
✅ One bearing included

💡 Why choose needle roller bearings without an inner ring?
They rely on the shaft as the raceway, saving space and boosting load capacity.
- Slim profile fits tight housings
- Larger contact area spreads load smoothly
- Handy for transmissions, drives, and industrial equipment

このNK45/20 ベアリングは、セットアップにコンパクトな強度を与え、厳しい荷重下でもスムーズで信頼性の高い回転を実現します。