R162221420 KWD-025-SNS-C1-N-1 Bosch Rexroth Ball Runner Block Carriage

The Bosch Rexroth KWD-025-SNS-C1-N-1 is a high-performance slimline ball runner block designed for heavy-duty linear motion systems that require compact width, excellent rigidity and consistent precision. Its SNS configuration — slimline width, normal block length and standard height — provides a narrow mounting footprint without compromising load capacity or running stability. Manufactured from high-quality carbon steel and supplied pre-lubricated, this size-25 runner block is ideal for demanding automation, CNC machinery and industrial positioning applications.

Key Features

• SNS format (Slimline / Normal length / Standard height) — narrow width allows installation in restricted spaces while maintaining full load capability.

• Size 25 — engineered for large, robust linear motion systems with high load demands.

• Carbon steel body — ensures maximum service life, rigidity and resistance to deformation under heavy loads.

• C1 preload (light preload) — provides reduced internal clearance for improved stiffness and running accuracy while still allowing smooth motion.

• Accuracy class N — suitable for general-purpose precision across industrial, automation and machining environments.

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

• Pre-lubricated and ready to install — requires no initial maintenance and supports long-term reliability.

• High static, dynamic and moment load resistance — suitable for complex loading conditions and multi-directional forces.

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

Technical Specifications

• Nominal size: 25 mm

• Block configuration: SNS — Slimline width, Normal block length, Standard height

• Material: Carbon steel

• Preload class: C1 (light preload)

• Accuracy class: N (standard precision)

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

• Block width: approximately 54 mm

• Block length: approximately 86–90 mm

• Block height with rail: approximately 36 mm

• Approximate weight: around 0.90–1.00 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 450–550 Nm

• Dynamic longitudinal moment capacity (ML): around 320–380 Nm

• Static moment capacities (Mt₀ / ML₀): approximately 600–700 Nm / 480–550 Nm

• Maximum permissible speed: 5 m/s

• Maximum permissible acceleration: 500 m/s²

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

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

• Mounting style: Slimline top-mount carriage for compact rail spacing

Typical Applications

The KWD-025-SNS-C1-N-1 is ideal for:

• CNC machinery, milling systems and large industrial routers

• High-load automation lines and precision assembly equipment

• Material handling, gantry drives and robotic linear axes

• Applications requiring a narrow installation width with enhanced stiffness

• Replacement or upgrades involving existing size-25 slimline rails

Why Buy from Bearing King Ltd

Purchasing through Bearing King Ltd ensures:

• Genuine Bosch Rexroth OEM components

• Competitive UK pricing with quick delivery

• Expert advice on preload selection, rail compatibility and installation

• Pre-lubricated, ready-to-fit blocks that reduce downtime and ensure long-term reliability