NKIB5901 NKE needle roller bearing

NKE NKIB5901 Combined Needle Roller Bearing (Double Direction)

The NKE NKIB5901 is a high-specialty rolling unit designed to simultaneously handle radial loads and moderate axial loads acting in both directions. Its architecture consists of a radial needle roller assembly integrated with a double-direction ball bearing system. A defining feature of the NKIB series is the two-piece inner ring, which is clamped during installation to provide precise, rigid guidance for 12 mm shafts. It is the premier "locating bearing" choice for applications where space efficiency and running accuracy are paramount.

Application

• Precision Machine Tools: Axial stabilization for small drive shafts and auxiliary spindles.
• Automation & Robotics: Compact drives and joints requiring bidirectional longitudinal positioning.
• Measurement Technology: Bearing arrangements for rotating elements in precision diagnostic devices.
• Automotive Engineering: Control mechanisms and small gearboxes with complex force distributions.
• Power Tools: Robust rotor support in professional handheld equipment.

Technical Specification

• Manufacturer: NKE Bearings (Austria).
• Designation: NKIB5901.
• Dimensions: 12 mm (ID) × 24 mm (OD) × 14 mm (Total width).
• Type: Combined bearing (needle roller + double direction angular contact ball).
• Design: Separable two-piece inner ring.
• Material: Premium heat-treated bearing steel.

Features and Benefits

• Bidirectional Axial Locating: Eliminates the need for two separate thrust bearings, shortening the overall machine length.
• High Rigidity: The precision needle assembly ensures excellent radial support with minimal deflection.
• Compactness: An outer diameter of only 24 mm allows for the design of extremely slender mechanisms.
• Simplified Installation: The split inner ring ensures a safer fitting process on the shaft, protecting the raceways.
• Austrian Reliability: NKE production guarantees running accuracy and a long fatigue life.

Why Choose This Product

By choosing the NKE NKIB5901, you are investing in a component that drastically simplifies your bearing arrangement. In 12 mm shaft applications where bidirectional axial stability is required within a limited footprint, the NKIB series is unrivaled. It combines Austrian precision with innovative geometry, leading to higher efficiency and increased uptime for your equipment.