Rolamento do rolo de agulha

Overview：
Needle roller bearings use long, thin cylindrical rollers to provide high load capacity within a minimal radial space. Key types include drawn cup needle roller bearings, needle roller and cage assemblies, and specialized cam followers. They are ideal for compact, high-load applications in automotive transmissions, industrial machinery, and more.

Features of Needle Roller Bearings

High load capacity within a very small radial cross-section.

Main types: Drawn cup needle roller bearings (with outer ring), needle roller and cage assemblies (for use with hardened shafts), and cam followers (with integral studs).

Compact and lightweight design for space-constrained applications.

Precision-guided rollers ensure stable operation, even under reciprocating motion.

Cam followers feature a thick-walled outer ring and mounting stud for high shock load resistance.

Often include integrated seals for contaminant protection and lubricant retention.

Benefits of Needle Roller Bearings

Space and Weight Saving: Offers the highest load capacity per unit size among rolling bearings.

Cost-Effective Solutions: Needle roller and cage assemblies utilize hardened shafts as raceways, reducing parts and cost.

Versatile Application Fit: Drawn cup bearings simplify installation; cage assemblies maximize compactness; cam followers excel in track and guidance systems.

High Rigidity and Durability: Robust construction handles heavy and shock loads effectively.

Reduced Maintenance Needs: Sealed and pre-lubricated options enable long, maintenance-free service life.

Wide Industry Use: A critical component in automotive, machinery, and robotics for compact, high-load design.