Closed End Needle Bearing 5x9x9mm With Dual Rubber Seals For Dust Protection High Precision Needle Roller Bearing 5mm Inner Diameter 9mm Outer Diameter 9mm Width Ideal For Small Machinery Robotics And Precision Equipment

Closed End Needle Bearing 5x9x9mm with dual seals, 1 pc
✔️ ID 5mm, OD 9mm, W 9mm; dual rubber seals; weight 2.1g

This compact, shell-type BK0509 Closed End Needle Roller Bearing fits tight spaces in robotics, model builds, and small linear drives. The dual seals help keep dust and contaminants out, boosting life in dusty or workshop environments.

✅ Size: 5 mm ID x 9 mm OD x 9 mm width
✅ Seal: dual rubber seals for dust protection
✅ Weight: approx 2.1 g
✅ Dynamic load rating Cr: 2400 N
✅ Static load rating C0r: 1990 N
✅ Fatigue load Cur: 243 N
✅ Limiting speed nG: 39,000 1/min; reference speed nB: 36,500 1/min

💡 What is a sealed needle bearing used for in compact machinery? A handy choice for tight spaces and precise motion.
- supports radial loads in small shafts with minimal clearance
- ideal for hobby robotics, RC gear, and compact linear actuators
- reduces friction and wear for longer life