R162281420 KWD-020-SNS-C1-N-1 Bosch Rexroth Ball Runner Block Carriage

The Bosch Rexroth KWD-020-SNS-C1-N-1 is a high-precision, low-preload ball runner block crafted for demanding linear motion applications, combining the flexibility of a slimline profile with robust load capacity and smooth, consistent travel. As part of the SNS series (slimline width, normal block length, standard block height), this carriage is well suited for installations where transverse space is limited but load capacity, rigidity and reliability remain critical.

Manufactured from carbon steel, pre-lubricated and sealed at the factory, this block is ready for installation — ideal for industrial automation, CNC equipment, robotics, and any linear guide system requiring dependable performance under varying loads.

Key Features

• SNS format (Slimline width / Normal length / Standard height) — compact width for space-constrained designs, yet offering full load-carrying capacity and standard block height for rail compatibility. 

• Size 20 — larger than size-15 blocks, providing enhanced rigidity and load capacity for heavier loads or more demanding mechanical systems. 

• Carbon steel construction (CS) — ensures strength, durability, and resistance to deformation under continuous operational loads. 

• Preload class C1 (Low preload / light preload) — offers reduced internal clearance with improved stability and smooth motion, balancing rigidity and rolling resistance. 

• Accuracy class N (Standard precision) — delivers reliable, repeatable positioning suitable for many industrial automation and machining applications. 

• Standard seal, no ball-chain — simplifies maintenance and reduces complexity, suitable for standard industrial environments. 

• Pre-lubricated & factory-sealed — comes ready to install with initial lubrication applied, simplifying start-up and reducing initial maintenance requirements. 

Technical Specifications 

• Nominal size: 20 mm. 

• Format: SNS — Slimline width, Normal block length, Standard block height. 

• Material: Carbon Steel (CS). 

• Preload class: C1 (light preload / low preload).

• Accuracy class: N (standard precision). 

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

• Block width (A): 44 mm. 

• Block length (overall, B): 75 mm.

• Height with rail (H): 30 mm. 

• Block mass (unpacked): ≈ 0.357 kg. 

• Dynamic load capacity (C): ≈ 23,400 N. 

• Static load capacity (C₀): ≈ 29,800 N.

• Dynamic torsional moment capacity (Mt): ≈ 300 Nm. 

• Dynamic longitudinal (side) moment capacity (ML): ≈ 200 Nm. 

• Static longitudinal moment capacity (ML₀): ≈ 260 Nm.

• Static torsional moment capacity (Mt₀): ≈ 300 Nm.

• Maximum permissible linear speed: 5 m/s. 

• Maximum permissible acceleration: 500 m/s² (under recommended load conditions). 

• Recommended lubrication: Grease (e.g. Dynalub 510), relubrication via lubrication nipple possible. 

• Permissible ambient temperature range: –10 °C to +80 °C (short-term peaks possible depending on lubrication). 

Typical Applications

The KWD-020-SNS-C1-N-1 is ideally suited for:

• CNC machining centres, milling or routing machines that require compact guides with high load capacity and precision.

• Industrial automation, assembly lines, and pick-and-place systems where space is limited but rigidity and smooth motion are needed.

• Robotics, material handling, or linear-actuator systems under moderate to heavy loads with multidirectional stress.

• Retrofit, maintenance, or new-build linear guidance systems using size-20 SNS rails.

• Applications where a balance of preload (for stability) and running smoothness is beneficial — for example in dynamic, repetitive motion environments.

Why Buy from Bearing King Ltd

By supplying the KWD-020-SNS-C1-N-1, Bearing King Ltd ensures you receive:

• Genuine Bosch Rexroth OEM-grade components with verified spec compliance and reliability.

• Competitive UK pricing and prompt dispatch tailored to industrial buyers.

• Expert technical support to match rails, preload classes, lubrication regimes and installation practices.

• Pre-lubricated, ready-to-install parts that reduce downtime and maintenance burden — ideal for both new builds and retrofit jobs.