R162121420 KWD-025-SNH-C1-N-1 Bosch Rexroth Ball Runner Block Carriage

The Bosch Rexroth KWD-025-SNH-C1-N-1 is a high-rigidity slimline ball runner block designed for demanding linear motion systems requiring narrow installation width, excellent stiffness and precise, repeatable performance. Its SNH configuration — slimline width, normal block length and high block height — offers increased rigidity and improved moment load handling compared with standard-height variants. Manufactured from premium carbon steel and supplied pre-lubricated, this size-25 block is ideal for high-precision automation, CNC machinery, industrial handling and heavy-duty gantry systems.

Key Features

• SNH format (Slimline / Normal length / High block height) — combines compact width with enhanced stiffness and superior moment load absorption.

• Size 25 — suitable for large, robust linear systems with demanding load requirements.

• Carbon steel construction — ensures outstanding durability, stability and resistance to deformation under severe loading.

• C1 preload (light preload) — provides reduced internal clearance for higher stiffness, improved precision and consistent running smoothness.

• Accuracy class N — dependable standard precision for general industrial and automation use.

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

• Pre-lubricated and sealed — supplied ready for installation with no initial maintenance required.

• High static, dynamic and moment load capability — suitable for difficult applications involving multi-directional forces.

• 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: C1 (light preload)

• Accuracy class: N (standard precision)

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

• Block width: approximately 54–60 mm

• Block length: approximately 95 mm

• Block height with rail: approximately 38–42 mm

• Approximate weight: around 1.2–1.3 kg

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

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

• Dynamic torsional moment 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 permissible speed: 5 m/s

• Maximum permissible acceleration: 500 m/s²

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

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

• Mounting style: Slimline top-mount block, optimised for compact installations

Typical Applications

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

• CNC machining centres and milling equipment requiring high stiffness and narrow footprint

• Automation systems with heavy or multi-directional loading

• Robotic linear axes and gantry applications needing increased vertical rigidity

• Long-stroke, precise positioning systems in industrial machinery

• Replacement or upgrade installations using size-25 slimline high-profile runner blocks

Why Buy from Bearing King Ltd

When purchasing from Bearing King Ltd, you receive:

• Genuine Bosch Rexroth OEM components with full performance assurance

• Competitive UK pricing and rapid delivery

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

• Pre-lubricated, ready-to-fit units that reduce downtime and maximise system reliability