RNA6909 Needle Roller Bearing Without Inner Ring 52x68x40mm

RNA6909 Machined Type Needle Roller Bearing Without Inner Ring 52mm x 68mm x 40mm
✔️ RNA6909 Needle Roller Bearing Without Inner Ring 52x68x40mm

This machined type needle roller bearing without an inner ring is used in compact mechanical systems where high radial load capacity is needed with a small cross section. It is handy for gearboxes, machine tools, and shaft-supported housings where the shaft itself acts as the raceway.

✅ Bearing type: Machined type needle roller bearing without inner ring
✅ Inside diameter: 52mm
✅ Outside diameter: 68mm
✅ Width: 40mm
✅ High radial load capacity in a slim profile
✅ Designed for shafts used directly as raceways
✅ Suitable for high load industrial and mechanical drive systems
✅ Dynamic load rating: 60000N
✅ Static load rating: 108000N
✅ Quantity: One bearing

Dimensions (mm)

Item ID OD W r(min)
RNA6909 52 68 40 1

💡 Why use a needle roller bearing without an inner ring in high load compact assemblies?
These bearings are chosen when space is tight and the shaft can serve as a hardened raceway surface.

• Allows higher load capacity compared to ball bearings in the same envelope

• Reduces overall assembly size by eliminating the inner ring

• Works well in gear trains and transmission shafts with hardened journals

• Helps improve rigidity and load handling in compact drive designs

A strong choice for heavy radial loads where space savings and solid shaft support make a real difference in performance.