NAS15ALZ NSK Linear Slide With Recirculating Ball Design

The NSK NAS15ALZ is a precision-engineered linear guide block designed for high-accuracy linear motion systems. Part of NSK’s NS Series, this carriage uses a four-row recirculating ball bearing mechanism to provide low-friction, high-rigidity movement under demanding dynamic and static loads.

Manufactured with tight dimensional tolerances and hardened steel raceways, the NAS15ALZ ensures stable running accuracy, excellent stiffness, and minimal deflection. The “Z” light preload classification removes internal clearance, improving both precision and repeatability in high-performance applications.

Technical Characteristics

• Series: NS Series Linear Guide

• Carriage Type: NAS – Standard height, standard length

• Rail Size: 15 mm nominal width

• Preload Class: Z (Light Preload) – Controlled preload for improved rigidity and running accuracy

• Running System: Four-row recirculating ball design

• Material: High-carbon, through-hardened steel for exceptional wear resistance

• Load Rating:

  • Dynamic Load Capacity: ~8.35 kN

  • Static Load Capacity: Suitable for medium-to-high industrial loading

• Mounting: Four top-mounted metric threaded holes

• Precision Grade: Manufactured to NSK’s linear accuracy standards for repeatable, controlled positioning

• Sealing: Integrated end seals for protection against contamination and lubricant loss

• Lubrication: Compatible with general-purpose industrial greases and automatic lubrication systems

Performance Attributes

• High Rigidity: Even load distribution in radial, reverse-radial, and lateral directions

• Low Friction Operation: Smooth linear movement with reduced drag force and low noise

• Dimensional Stability: Hardened raceways maintain accuracy across long operational cycles

• Vibration Reduction: Preload minimises micro-movement, ideal for precision machining and automation

• Consistent Long-Stroke Performance: Optimised recirculation path ensures uniform operation along extended rail lengths

Typical Engineering Applications

• CNC machine axes

• High-precision automation machinery

• Robotics and pick-and-place systems

• Semiconductor processing and inspection equipment

• Linear stages requiring high stiffness and repeatability

• Metrology, measuring, and positioning systems

Why Choose Bearing King Ltd?

• Large stock of genuine NSK linear motion products

• Fast UK & international delivery

• Full technical support available

• Competitive pricing across all NSK linear guide components

• Trusted supplier to engineering, manufacturing, and automation sectors