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BOSCH REXROTH
R205A81420


$191.32 USD
  • BOSCH REXROTH
  • Material:R205A81420
  • Model:KWE-020-FNS-C1-N-1

Quantity in stock: 13

Note: Sales tax, and shipping will be calculated at checkout.
***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 KWE-020-FNS-C1-N-1 (R205A81420) is a high-quality BSCL ball runner block designed for precise linear motion applications. This runner block features a flanged, normal, standard height format (FNS) and is constructed from unalloyed steel CS, ensuring durability and reliable performance. It is of size 20, with an overall length that accommodates various industrial requirements. The runner block offers low preload (preload class C) and standard accuracy (accuracy class N), making it suitable for applications that demand normal rigidity with high load capacity. The product does not include a ball chain but comes with initial lubrication and preservation for immediate use and extended service life. This model allows for mounting from both above and below, providing flexibility in installation. It boasts compatibility across different accuracy classes of guide rails, enhancing interchangeability within linear motion systems. The static load rating C0 indicates its capability to withstand significant loads without movement, while the dynamic load rating C reflects its ability to handle loads during motion. The B.RUNNER BLOCK CS KWE-020-FNS-C1-N-1 has been engineered to operate within a permissible ambient temperature range, ensuring reliability across various working environments. Additionally, the product's friction coefficient remains within specified limits even without seal friction. Its dimensions are optimized for size 20 profiled rail systems, including size B, H, K, E, N, T, S rail systems with corresponding specifications on static and dynamic torsional moment load capacities. In summary, this Bosch Rexroth runner block is an essential component for constructing efficient linear motion assemblies in diverse industrial settings where precision and robustness are required.


BSCL ball runner block, FNS, size 20, steel CS, accuracy standard, low preload

The BSCL ball runner block is precise and characterized by the following product features:
Size 20
Format FNS - flanged, normal, standard height
Runner block body made of unalloyed steel CS
Preload class C1: Low preload
Accuracy class N: Standard
Without ball chain
With initial lubrication and preservation
Runner block body in standard version
Overall length of the runner block = 75 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Unpacked Weight: 0.431 kg
Area of application: For normal rigidity requirements
Load capacity: High
For mounting from above and below
Height of runner block25.3
Size E153
Footnote permissible ambient temperature (min ... max)100 °C admissible for short time.
Footnote friction coefficient μFriction coefficient µ without seal friction
Permissible ambient temperature-10 °C ... +80 °C
FormatFNS - flanged, normal, standard height
Ball chainWithout ball chain (standard)
Friction coefficient μ0,002 ... 0,003
Size B tolerance (profiled rail systems)+0.5
Size N17.7
Pitch T guide rail60
Height of runner block with guide rail30
Static load rating C019600
Preload classC1 - Low preload
Size B149.6
Size H (profiled rail system)30
Friction coefficient μ min.0.002
Accuracy classN - Normal
Size K4 (profiled rail systems)5.65
Size B with tolerance (profiled rail systems)75 mm +0,5
Size H2 (profiled rail systems)17
Height of guide rail H217
Size K3 (profiled rail systems)5.65
Size A220
Size S15.3
Static torsional moment load capacity Mt0210
Dynamic torsional moment load capacity Mt100150
Width of runner block63
Size A131.5
Size E8 (profiled rail systems)29
Length of runner block75
Dynamic load capacity C14600
Static longitudinal moment load capacity ML0170
Size E9 (profiled rail systems)10.15
Size N1 (profiled rail systems)7.7
Size T (profiled rail systems)60
Size N6 with tolerance (profiled rail systems)10 mm ±0,5
Dynamic load capacity C5018400
Dynamic longitudinal moment load capacity ML50160
Size S5 (profiled rail system)6
Max. acceleration amax250
Dynamic load capacity C10014600
Dynamic torsional moment load capacity Mt50190
Dynamic longitudinal moment load capacity ML100130
Size A (profiled rail systems)63
Size N6 tolerance (profiled rail systems)±0.5
Size A3 (profiled rail systems)21.5
Preload force230
Maximum permissible linear speed vmax3
LubricationWith initial lubrication and preservation
Size S1 (profiled rail systems)5.3
Size N6 (profiled rail systems)10
Friction coefficient μ max.0.003
Size B (profiled rail systems)75
SealSS – standard seal
Size K2 (profiled rail systems)11.8
Size V16
Productgroup ID17
Size K1 (profiled rail systems)11.8
Permissible ambient temperature (max)+80
Size S9 thread diameter x lead with tolerance (profiled rail systems)M2,5x6
Size E240
Size S2 (profiled rail systems)M6
Permissible ambient temperature (min)-10
Note: Max. acceleration amaxIf Fcomb◡> 2.8 • Fpr : amax = 50 m/s2
Size T1 min (profiled rail systems)13
Size S9 thread diameter x lead with (profiled rail systems)M2,5x6
Weight0.431
Size H125.3
Nominal size20
VersionBall rail system
Size H1 (profiled rail systems)25.3