K25X31X21 Needle Roller Bearing Cage 25x31x21mm Steel Needle Cage Bearing for Gearbox Transmission

K25X31X21 Needle Roller Cage Bearing 25x31x21mm Single
✔️ 25mm x 31mm x 21mm Steel Needle Cage

This single K25X31X21 needle roller cage bearing is built for compact, high-load setups where space is tight but performance still matters. It’s a solid choice for gearboxes, transmissions, and precision mechanical systems that need strong radial load support without taking up extra room.

✅ Pack size: 1 bearing
✅ Needle roller cage bearing design
✅ Inner diameter: 25mm
✅ Outer diameter: 31mm
✅ Width: 21mm
✅ Steel cage construction for strength
✅ Designed for high radial load capacity
✅ Compact profile for tight installations
✅ Reduced friction compared to solid bushings
✅ Even load distribution across needle rollers

Dimensions Table:

Inner Diameter (ID) Outer Diameter (OD) Width
25mm 31mm 21mm

💡 Why use a needle roller cage bearing in compact high-radial-load mechanical systems?
It’s all about maximizing load capacity while keeping the footprint small.

• Needle rollers increase contact area to handle higher radial forces

• Cage design maintains roller spacing for smoother rotation

• Slim cross-section fits into space-limited housings

• Lower friction than plain bushings under heavy radial loads

If you’re building or repairing a tight mechanical setup that needs serious radial strength without bulk, this needle cage bearing is a smart, handy upgrade.