R165329420 KWD-025-FLS-C0-N-1 Bosch Rexroth Ball Runner Block Carriage

The Bosch Rexroth KWD-025-FLS-C0-N-1 is a long-body flange-mounted ball runner block designed for large, high-performance linear motion systems requiring exceptional rigidity, stability and smooth travel. The FLS configuration — flange width, long block length and standard height — offers a wide, secure mounting footprint combined with enhanced load distribution and reduced deflection. Built from robust carbon steel and supplied pre-lubricated, this size-25 block delivers dependable performance in demanding industrial environments.

Key Features

• FLS format (Flange / Long length / Standard height) — combines a wide mounting flange with an extended block length for maximum stability and rigidity.

• Size 25 — engineered for heavy-duty linear systems with substantial load requirements.

• Carbon steel body — ensures strength, rigidity and long-lasting reliability under demanding loads.

• C0 preload (preload-free) — provides low-friction, smooth running where preload stiffness is not required.

• Accuracy class N — suitable for general-purpose precision across industrial automation, CNC and mechanical systems.

• Standard sealing — protects internal ball tracks from dust and common contaminants.

• Pre-lubricated and sealed — ready for immediate installation with minimal initial maintenance.

• High static, dynamic and moment load capacity — ideal for applications involving multi-directional forces and extended travel paths.

• Compatible with Bosch Rexroth size-25 FLS, FNS, SNS and SNH rails.

Technical Specifications

• Nominal size: 25 mm

• Block configuration: FLS — Flange width, Long block length, Standard height

• Material: Carbon steel

• Preload class: C0 (preload-free / clearance type)

• Accuracy class: N (standard precision)

• Seal type: Standard seal (SS), without ball chain

• Flange width: approximately 70 mm

• Block length: approximately 110–115 mm

• Block height with rail: approximately 36 mm

• Approximate weight: around 1.1–1.2 kg

• Dynamic load capacity (C): approximately 36,000–40,000 N

• Static load capacity (C₀): approximately 47,000–55,000 N

• Dynamic torsional moment capacity (Mt): around 500–600 Nm

• Dynamic longitudinal moment capacity (ML): around 350–420 Nm

• Static moment capacities (Mt₀ / ML₀): approximately 700 Nm / 550 Nm

• Maximum permissible speed: 5 m/s

• Maximum permissible acceleration: 500 m/s²

• Lubrication: Factory-filled grease, with relubrication points if required

• Operating temperature range: –10°C to +80°C

• Mounting style: Flange-mounted long-body carriage for high-stability applications

Typical Applications

The KWD-025-FLS-C0-N-1 is ideal for:

• CNC machining centres and heavy milling systems requiring maximum mounting stability

• Industrial automation systems with significant loads or long travel distances

• Gantry systems, robotic linear axes and large-scale positioning equipment

• Material handling, assembly and heavy-duty transport systems

• Replacement or upgrades involving existing size-25 flanged long-body rails

Why Buy from Bearing King Ltd

When you choose Bearing King Ltd, you benefit from:

• Genuine Bosch Rexroth OEM components

• Competitive UK pricing with fast, dependable delivery

• Technical support for preload selection, rail matching and installation queries

• Pre-lubricated, ready-to-install blocks designed to reduce downtime and maximise working life