R165319420 KWD-015-FLS-C0-N-1 Bosch Rexroth Ball Runner Block Carriage

The Bosch Rexroth KWD-015-FLS-C0-N-1 is a robust ball runner block designed for linear rail systems demanding strong load-handling capacity, smooth motion and reliability under load. Its FLS configuration (flange width, long block length, standard height) delivers a stable mounting base and enhanced structural rigidity — making it particularly suited for heavier or longer-travel linear motion applications. With size 15 and a carbon-steel body, this block offers dependable performance even in demanding industrial environments.

Factory-sealed and pre-lubricated, the block is supplied ready for installation and built for long-term, low-maintenance operation.

Key Features

• FLS format (Flange / Long / Standard height) — ensures a wide mounting footprint and stable rail contact for improved rigidity and load distribution. 

• Size 15 — compact overall profile while still providing substantial load capacity. 

• Carbon steel body (CS) — offers high structural strength and resistance to deformation under load. 

• Preload class C0 (Preload-free / clearance type) — allows smooth, free-running motion with minimal rolling resistance — suitable for applications where preload isn’t needed. 

• Accuracy class N (Standard precision) — provides reliable, repeatable motion ideal for general automation, CNC and machine tool setups. 

• Standard seal, no ball chain — simplifies maintenance and suits many industrial applications. 

• Pre-lubricated and preserved at factory — ready for immediate installation and optimized for long service life with minimal upkeep. 

• High rigidity and load rating in all directions — suitable for single-block-per-rail setups where load and stability matter. 

Technical Specifications

• Nominal size: 15 mm 

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

• Material: Carbon steel (CS) 

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

• Accuracy class: N (Standard precision) 

• Seal type: SS (Standard seal), no ball chain 

• Approximate weight: 0.30 kg 

• Dynamic load capacity (C): ≈ 12,800 N 

• Static load rating (C₀): ≈ 18,400 N 

• Dynamic torsional moment load capacity (Mt): ≈ 120 Nm 

• Dynamic longitudinal (side) moment capacity (ML): ≈ 120 Nm 

• Static moment capacities (Mt₀ / ML₀): ≈ 180 Nm 

• Maximum linear speed (vₘₐₓ): 5 m/s 

• Maximum permissible acceleration (aₘₐₓ): 500 m/s² 

• Operating ambient temperature: –10 °C to +80 °C (typical; higher short-term peaks possible depending on lubrication) 

Typical Applications

The KWD-015-FLS-C0-N-1 is ideal for:

• CNC machinery, milling and routing systems needing stable, long-travel guidance

• Automation and assembly lines where durability, smooth motion and load capacity are required

• Robotics, pick-and-place and material-handling systems with larger or heavier loads

• Retrofit or maintenance of existing linear guide installations using size-15 FLS/SNS/SNO rails

• Any application where a compact footprint, flange mounting and high structural rigidity are priorities

Why Buy from Bearing King Ltd

By sourcing your linear motion components through Bearing King, you benefit from:

• Genuine Bosch Rexroth parts with proven reliability and full OEM-spec performance

• Competitive UK pricing and prompt dispatch

• Expert advice on rail & block matching, preload class selection, lubrication, and system integration

• Pre-lubricated, ready-to-use blocks that reduce installation downtime and maintenance effort