NKX25 -Z NKE needle roller bearing

NKE NKX25-Z Combined Needle Roller Bearing (With Cover)

The NKE NKX25-Z is a high-specialty combined rolling bearing unit designed to simultaneously handle radial loads and significant axial loads acting in a single direction. This design integrates a high-capacity radial needle roller assembly with a thrust ball bearing. The standout feature of the -Z version is the protective sheet metal cover, which permanently caps the thrust section. This prevents contaminant ingress and lubricant leakage, making it an ideal solution for compact bearing arrangements on 25 mm shafts.

Application

• Machine Tools: High-rigidity support for drive shafts and auxiliary spindles.
• Automation & Robotics: Compact rotation axes and joints requiring axial stabilization.
• Packaging Machinery: Cam mechanisms and positioning drives in high-speed environments.
• Pneumatic & Hydraulic Tools: Stable support for rotors and moving elements.
• Medical Equipment: Precision drives for diagnostic apparatus requiring low vibration.

Technical Specification

• Manufacturer: NKE Bearings (Austria).
• Designation: NKX25-Z.
• Dimensions: 25 mm (ID) × 37 mm (OD) × 30 mm (Total Width).
• Type: Combined bearing (needle roller + thrust ball).
• Cover (-Z): Sheet metal cap on the thrust section (non-separable).
• Material: Premium heat-treated bearing steel.

Features and Benefits

• Integrated Design: Accommodates forces from two directions, eliminating the need for two separate bearings.
• Operational Security (-Z): The protective cover simplifies lubrication and extends maintenance intervals.
• Extreme Compactness: A 37 mm outer diameter allows for the design of very slender mechanisms with high load capacity.
• High Rigidity: The steel cage precisely guides rolling elements, ensuring stability at high speeds.
• Austrian Precision: NKE production guarantees running accuracy and a long fatigue life.

Why Choose This Product

By choosing the NKE NKX25-Z, you are investing in European technology that optimizes space within your machinery. The covered version (-Z) provides a ready-to-install component that is more resilient to harsh external conditions than standard open versions. It is the most cost-effective solution for engineers seeking uncompromising precision and durability in a compact format.