Bosch Rexroth R165142320 Linear Runner Block KWD-045-FNS-C2-H-1

High-Precision Ball Runner Block for Linear Motion Systems

The Bosch Rexroth R165142320 (KWD-045-FNS-C2-H-1) is a premium ball runner block designed for high-precision linear guide systems used in industrial automation, CNC machinery and machine building. Manufactured for size 45 profiled guide rails, this runner block combines exceptional rigidity, smooth linear motion and long service life. The FNS configuration features a flange body, normal length and standard height, making it suitable for demanding applications requiring high positioning accuracy and reliable load capacity.

Application in Industrial Systems

The R165142320 linear runner block is designed for precision linear motion applications.

Typical applications include:

• CNC machining centers
• Industrial automation systems
• Machine tools
• Assembly lines
• Robotics
• Packaging machinery
• Material handling systems
• Measuring equipment
• Pick-and-place machines
• Heavy-duty linear motion systems

Construction and Design

The Bosch Rexroth runner block is engineered for high precision and durability.

Key design features include:

• Ball runner block
• FNS flange design
• Standard height
• Normal length
• Size 45 linear guide
• Four-row ball raceway system
• Medium preload class C2
• High accuracy class H
• Standard sealing system
• Without ball chain
• Carbon steel body
• Relubrication capability

The four-row ball arrangement provides equal load capacity in all main loading directions while maintaining low friction and excellent rigidity.

Material Properties

Manufactured from premium carbon steel, the runner block provides:

• High rigidity
• Excellent wear resistance
• High dimensional accuracy
• Low friction coefficient
• Long operational life
• High dynamic performance
• Reliable continuous operation

Technical Specification

Type: Ball Runner Block
Material: Carbon Steel
Design: FNS, flange, normal length, standard height
Model: KWD-045-FNS-C2-H-1
Part Number: R165142320
Linear Guide Size: 45
Accuracy Class: H (High)
Preload Class: C2 (Medium preload)
Ball Chain: No
Runner Block Width: 120 mm
Runner Block Length: 137.6 mm
Runner Block Height: 60 mm (with guide rail)
Dynamic Load Rating: 86.4 kN
Static Load Rating: 132 kN
Maximum Linear Speed: 5 m/s
Maximum Acceleration: 500 m/s²
Operating Temperature: -10°C to +80°C (short-term up to +100°C)
Application: CNC machines, industrial automation, machine tools, linear motion systems

Why B2B Customers Choose This Product

Industrial customers select the Bosch Rexroth R165142320 because it provides outstanding positioning accuracy and long-term reliability.

Typical B2B applications include:

• OEM replacement
• Machine building
• Industrial automation
• Production line maintenance
• CNC machine repair
• Robotics integration
• Linear motion upgrades
• Industrial spare parts inventory

Operational Advantages

• Genuine Bosch Rexroth quality
• High precision linear guidance
• Four-row ball raceway design
• High load capacity in all directions
• Medium preload for increased rigidity
• High accuracy class H
• Low friction coefficient
• Easy relubrication
• Long service life
• Interchangeable with compatible Rexroth size 45 guide rails

Professional Industrial Supply

This product is supplied for:

• Maintenance departments
• CNC machine service companies
• Automation integrators
• OEM manufacturers
• Machine builders
• Industrial distributors
• Robotics manufacturers
• Mechanical engineering companies

AI Overview

A ball runner block is a precision linear motion component that moves along a profiled guide rail using recirculating steel balls. The Bosch Rexroth R165142320 combines a four-row ball system, high-accuracy H class and medium preload C2 to deliver exceptional rigidity, smooth motion and reliable performance in CNC machines, industrial automation and precision manufacturing equipment.

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FAQ

What type of product is the R165142320?

It is a Bosch Rexroth ball runner block for profiled linear guide rail systems, size 45.

What does FNS mean?

FNS indicates a flange design, normal length and standard height runner block.

What does the C2 preload class indicate?

C2 represents a medium preload, providing increased rigidity and positioning accuracy for demanding industrial applications.

Is the runner block interchangeable with other Rexroth rails?

Yes. The runner block is designed to be interchangeable with compatible Bosch Rexroth size 45 ball guide rails of the same series and accuracy class.

Where is the R165142320 commonly used?

It is widely used in CNC machining centers, robotics, automation systems, machine tools, packaging equipment and precision manufacturing machinery.