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BOSCH REXROTH
R165342420

  • BOSCH REXROTH
  • Material:R165342420
  • Model:KWD-045-FLS-C2-N-1

Due to extremely high demand, please call 877-366-7226 for availability

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth B.RUNNER BLOCK CS KWD-045-FLS-C2-N-1 (R165342420) is a high-precision ball runner block designed for linear motion applications. This particular model features a flanged, long, and standard height (FLS) format with an overall length of the runner block being 45 mm. Crafted from unalloyed steel CS, this runner block offers a medium preload classified under preload class C and falls within accuracy class N for normal precision levels. This B.RUNNER BLOCK CS comes without a ball chain but includes initial lubrication and preservation to ensure smooth operation right out of the box. The roller bearing grease used is Dynalub, which provides reliable performance over time. It's important to note that this runner block does not come with attachment elements on either the left front or right front reference edge. The product is part of Bosch Rexroth's profiled rail systems made of carbon steel and can support a static load with a dynamic load capacity C and dynamic torsional moment load capacity Mt based on standard travel lengths as per DIN ISO specifications. The permissible ambient temperature range for this model is from -10°C to +100°C, making it suitable for various operating environments. With a maximum permissible linear speed (vmax) and an acceleration amax that needs to be adjusted based on comparison values, this runner block is versatile in its application. The friction coefficient is low, ensuring efficient operation with minimal resistance. Additionally, it comes with a standard seal (SS) and does not include self-alignment features, which means it requires precise alignment during installation. Overall, the Bosch Rexroth B.RUNNER BLOCK CS KWD-045-FLS-C2-N-1 (R165342420) is an essential component for those looking for reliable linear motion solutions in their machinery or equipment setups. Its robust construction and thoughtful design cater to demanding applications where precision and durability are key.


Ball runner block, FLS, size 45, steel CS, accuracy standard, average preload, without ball chain

The ball runner block is highly precise and characterized by the following product features:
Size 45
Format FLS: Width = flange, length = long, height = standard
Runner block body made of unalloyed steel CS
Preload class C2: Medium preload
Accuracy class N: Normal
Without ball chain
With initial lubrication and preservation
Roller bearing grease Dynalub 510
Without attachment element, left (front reference edge)
Without attachment element, right (front reference edge)
Straight lube connection loosely attached.
Runner block body in standard version
Overall length of the runner block = 174.1 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Unpacked Weight: 4.460 kg
Material (profiled rail systems)Carbon steel
Height of runner block50.3
Footnote permissible ambient temperature (min ... max)100 °C admissible for short time. For operation at negative temperatures, please consult us.
Footnote dynamic load capacity CDetermination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Footnote friction coefficient μWithout friction of seal
Max. acceleration amax500
Permissible ambient temperature-10 °C ... +80 °C
Size A (profiled rail systems)120
Preload force7230
FormatFLS - flanged, long, standard height
Self-aligning for compensation of misalignmentsWithout self-alignment
Maximum permissible linear speed vmax5
LubricationWith initial lubrication and preservation
Ball chainWithout ball chain (standard)
Friction coefficient μ0,002 ... 0,003
Pitch T guide rail105
Height of runner block with guide rail60
Static load rating C0190000
Dynamic torsional moment load capacity Mt3010
Friction coefficient μ max.0.003
Size B (profiled rail systems)174.1
Preload classC2 – Average preload
SealSS – Standard seal
Size B1 (profiled rail systems)133.5
Size H (profiled rail system)60
Friction coefficient μ min.0.002
Productgroup ID17
Accuracy classN - normal
Dynamic longitudinal moment load capacity ML footnoteDetermination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Dynamic longitudinal moment load capacity ML2730
Note: Max. acceleration amaxIf Fcomb◡> 2.8 • Fpr : amax = 50 m/s2
Static torsional moment load capacity Mt05120
Runner block or guide railRunner block
Width of runner block120
Size T1 min (profiled rail systems)18
Dynamic torsional moment load capacity Mt footnoteDetermination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Length of runner block174.1
Linear guide typeBall rail system
Dynamic load capacity C111000
Static longitudinal moment load capacity ML04660
Internal product informationFor LS – low-friction seal with external longitudinal seal
Weight4.460
Nominal size45