Ø30mm CF53 Induction Hardened Linear Bearing Shaft - Cut To Length

Ø30mm CF53 Induction Hardened Linear Bearing Shaft – KM-W-30

Precision shaft for heavy-duty industrial linear motion applications

The KM-W-30, 30mm linear bearing shaft from Kiwi Motion is engineered for demanding heavy-duty linear motion tasks across a wide range of industrial environments.

With a 30mm diameter and exceptional mechanical strength, this shaft is designed to support large automation systems, long-span linear guides, and gantry structures that operate under high mechanical loads.

Manufactured from CF53 steel, the KM-W-30 shaft combines excellent core toughness with a hardened surface that provides superior wear resistance.

Each 30mm linear bearing shaft undergoes a controlled induction hardening process, delivering a surface hardness suitable for prolonged bearing contact and continuous motion.

The shaft is precision ground to an h6 tolerance, with roundness held within 6 µm and straightness controlled within 0.15 mm per metre. This ensures consistent, smooth linear motion and reliable system accuracy across large spans.

Applications for the 30mm linear bearing shaft

The KM-W-30 shaft is ideally suited to large-scale motion systems where high rigidity, precise alignment, and wear resistance are critical to performance. Typical applications include:

• Heavy-duty gantry frameworks in automation and CNC systems
• Long-span linear guides in materials handling equipment
• Robotic transport mechanisms and large pick-and-place machines
• Precision machining and assembly platforms
• High-capacity production lines requiring extended linear travel

Thanks to its substantial diameter, the 30mm linear bearing shaft offers excellent stiffness, helping to maintain positional accuracy over long spans while minimising shaft deflection.

The hardened surface resists scuffing and wear, providing reliable operation even in applications with frequent or continuous bearing travel.

Custom Lengths and End Machining Options

Each KM-W-30 shaft is cut to your specified length with a precision tolerance of ±0.1 mm. This enables simple and accurate integration into bespoke machine builds or retrofitted assemblies.

In addition to cut-to-length supply, Kiwi Motion also offers custom end machining on request.

This service allows us to prepare shafts with chamfers, threads, flats, or other end features to suit your specific design requirements, helping you save time and reduce in-house machining costs.

Compatible with Kiwi Motion’s Bearings and Shaft Supports

The 30mm linear bearing shaft is fully compatible with Kiwi Motion’s comprehensive range of linear bearings and shaft supports.

This ensures a perfect fit and simplifies assembly, helping you achieve reliable long-term performance in your linear motion systems.

For industrial linear motion projects requiring maximum rigidity, precision, and durability, the KM-W-30 shaft offers a proven and versatile solution.