RNAO 12x22x12 NTN - Needle Roller Bearing without Inner Ring (Machined-Ring Type)

RNAO 12x22x12 NTN - Needle Roller Bearing without Inner Ring (Machined-Ring Type)

The NTN RNAO 12x22x12 needle roller bearing is a machined outer ring bearing designed for applications requiring compact form factor and high radial load capacity. It has no inner ring - the shaft itself must be hardened and ground to act as the raceway.

🔧 Specifications:

• Size: 12x22x12 mm

• Type: needle roller bearing, no inner ring

• Outer ring: machined, high-precision steel

• Speed: up to 26,000 RPM (oil) or 17,000 RPM (grease)

• Load capacity: Dynamic 8.65 kN, Static 8.0 kN

• Material: hardened steel rollers + steel cage

• Clearance: CN, Accuracy: P0

❓ FAQ (EN)

Q: Does it include an inner ring?
A: No - it’s an open, separable type. The shaft must be hardened and polished.

Q: What are typical applications?
A: Used in engines, gearboxes, pumps, and automotive transmissions where space is limited.

Q: Maximum speed?
A: Up to 26,000 RPM with oil lubrication.

Q: Original NTN product?
A: Yes - we only supply authentic NTN bearings.

🔑 Keywords (EN)