R162129420 KWD-025-SNH-C0-N-1 Bosch Rexroth Ball Runner Block Carriage

The Bosch Rexroth KWD-025-SNH-C0-N-1 is a heavy-duty slimline ball runner block designed for large linear motion systems where a narrow installation width is required without compromising load capacity or rigidity. The SNH configuration — slimline width, normal block length and high block height — provides additional stiffness and improved force absorption compared with standard-height blocks. Constructed from high-grade carbon steel and supplied pre-lubricated, this size-25 runner block is ideally suited for demanding industrial environments where smooth, reliable and long-lasting performance is essential.

Key Features

• SNH format (Slimline / Normal length / High block height) — narrow overall width with enhanced vertical stiffness and improved moment load resistance.

• Size 25 — suitable for larger machinery and systems requiring high load capacity.

• Carbon steel construction — offers exceptional rigidity, durability and resistance to deformation under continuous load.

• C0 preload (preload-free) — provides smooth, low-friction running ideal for systems where free movement is preferred over preload stiffness.

• Accuracy class N — dependable standard precision for industrial automation and mechanical applications.

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

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

• High load and moment resistance — designed to handle multi-directional forces in demanding operating conditions.

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

Technical Specifications

• Nominal size: 25 mm

• Block configuration: SNH — Slimline width, Normal block length, High block height

• Material: Carbon steel

• Preload class: C0 (preload-free)

• Accuracy class: N (standard precision)

• Seal type: Standard seal, without ball chain

• Approximate block width: around 54–60 mm

• Approximate block length: around 95 mm

• Block height with rail: approximately 38–42 mm

• Approximate weight: around 1.2–1.3 kg

• Dynamic load capacity (C): approximately 40,000–45,000 N

• Static load capacity (C₀): approximately 55,000–60,000 N

• Dynamic moment load capacity (Mt): approximately 600–650 Nm

• Dynamic longitudinal moment capacity (ML): approximately 420–450 Nm

• Static moment capacities (Mt₀ / ML₀): approximately 750 Nm / 600 Nm

• Maximum travel 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: Slimline top-mount block for compact rail layouts

Typical Applications

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

• Large CNC machining centres and milling systems requiring strong rigidity in a narrow footprint

• Industrial automation systems with space constraints but high load demands

• Heavy-duty material handling, gantry systems and robotic linear axes

• Long-stroke positioning systems with multi-directional loading

• Replacement or upgrade applications using existing size-25 slimline rails

Why Buy from Bearing King Ltd

By choosing Bearing King Ltd, you benefit from:

• Guaranteed genuine Bosch Rexroth OEM linear components

• Competitive UK pricing with fast, reliable delivery

• Technical support for rail compatibility, preload selection and installation

• Pre-lubricated, ready-to-install blocks that minimise downtime and maximise reliability