NKXR40 NKE needle roller bearing

NKE NKXR40 Combined Needle Roller Bearing (With Cylindrical Roller Thrust Bearing)

The NKE NKXR40 is a high-performance combined unit that integrates a radial needle roller bearing with a thrust cylindrical roller assembly. This architecture allows for the simultaneous handling of massive radial forces and significant axial loads acting in one direction. This model operates without an inner ring (running directly on a hardened shaft with a 40 mm diameter), enabling maximum miniaturization of the bearing arrangement while maintaining extreme rigidity and load capacity.

Application

• CNC Machine Tools: Precision guidance for spindles and drive shafts requiring rigid axial locating.
• Rotary Tables: Bearing arrangements for indexing mechanisms in assembly automatons.
• Machine Engineering: Multi-spindle drilling heads and high-pressure industrial pumps.
• Automation: Industrial robots and manipulators with high payloads and limited mounting space.
• Gearboxes: Compact support for gear shafts subjected to axial forces from helical gears.

Technical Specification

• Manufacturer: NKE Bearings (Austria).
• Designation: NKXR40.
• Dimensions: 40 mm (ID under needles) × 52 mm (OD) × 32 mm (Total width).
• Type: Combined bearing (radial needle + thrust cylindrical roller).
• Cages: Precision pressed steel (ensures stability at high speeds).
• Lubrication: Open design for easy access to oil circulation or grease.

Features and Benefits

• Extreme Axial Capacity: The use of rollers in the thrust section (NKXR series) offers significantly higher rigidity than ball versions (NKX).
• Minimal Cross-Section: Enables the design of very slender housings and dense shaft arrangements.
• NKE Precision: Austrian manufacturing standards guarantee low radial and axial runout, extending tool life in machines.
• Separable Design: The housing washer for the thrust section can be mounted independently, simplifying technical fitting.
• Thermal Stability: The steel cage dissipates heat effectively, allowing for operation in intense production cycles.

Why Choose This Product

By investing in the NKE NKXR40, you choose a premium product that eliminates the need for separate radial and thrust bearings. In 40 mm applications where space is at a premium and cutting or pressing forces are high, the NKXR series from NKE provides uncompromising durability. It is the foundation for the precise operation of your equipment, resulting in less downtime and higher quality of your final products.