NKIB5904 NKE needle roller bearing

NKE NKIB5904 Combined Needle Roller Bearing (Bi-directional)

The NKE NKIB5904 is a sophisticated hybrid rolling bearing designed for high-performance applications. It integrates a high-capacity radial needle roller assembly with a bi-directional angular contact ball bearing. This unique feature allows the NKIB to locate the shaft axially in both directions. By combining these functions into a single 37 mm outer diameter housing, it significantly reduces space requirements, eliminating the need for separate thrust bearings.

Application

• Gearboxes & Transmissions: Precise shaft support where alternating axial forces are present.
• Pumps & Compressors: Handling combined loads at high speeds within a compact envelope.
• Industrial Automation: Robotic joints and positioning mechanisms requiring bi-directional stability.
• Machine Spindles: Guiding high-dynamic drive shafts with varying pressure directions.
• Auxiliary Drives: Reliable bearing units in vehicles and agricultural machinery.

Technical Specification

• Manufacturer: NKE Bearings (Austria).
• Designation: NKIB5904.
• Dimensions: 20 mm (ID) × 37 mm (OD) × 23 mm (Total Width).
• Type: Combined needle roller / angular contact ball bearing (bi-directional).
• Load Capability: Very high radial and axial (both directions) loads.
• Material: Premium heat-treated bearing steel.

Features and Benefits

• Bi-directional Stabilization: Replaces complex arrangements of two separate bearings, simplifying shaft design.
• Compact Envelope: Manages complex loads with a total width of just 23 mm.
• High Radial Stiffness: Dense needle roller arrangement ensures minimal deflection under heavy radial pressure.
• Open Design: Facilitates efficient lubricant flow, aiding heat dissipation and motion smoothness.
• NKE Austrian Quality: Guaranteed precision and long fatigue life in demanding duty cycles.

Why Choose This Product

By choosing the NKE NKIB5904, you are investing in peak bearing unit optimization. This component eliminates the need for additional thrust washers, reducing machine weight and assembly risks. For industrial applications where 24/7 reliability and space-saving are critical, NKE's Austrian quality offers an uncompromising solution for engineers and maintenance professionals.