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BOSCH REXROTH
R167259372


$517.27 USD
  • BOSCH REXROTH
  • Material:R167259372
  • Model:B.RUNNER BLOCK CR KWD-020-CNS-C0-H-1

Quantity in stock: 0

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 CR KWD-020-CNS-C0-H-1 (R167259372) is a high-precision ball runner block designed for linear motion applications requiring corrosion resistance and high accuracy. This runner block boasts a Resist CR coating, which provides exceptional corrosion resistance, and is crafted from unalloyed steel CS with a matte-silver, hard chrome-plated finish for durability. The product features a CNS format, indicating a compact width, normal length, and standard height. The B.RUNNER BLOCK CR is preload-free (preload class C) and offers high accuracy (accuracy class H), ensuring precise motion control. It comes equipped with a ball chain to facilitate smooth movement of the balls within the block. The unit arrives prelubricated with Dynalub grease and preserved for immediate use without the need for initial maintenance. With an overall length of . mm, this runner block can be used in conjunction with all BNS ball guide rails across every accuracy class, allowing for interchangeability and flexibility in system design. It has been engineered to handle high torsional moments on rails where lateral space is restricted while maintaining excellent dynamic characteristics. The optimized entry-zone geometry coupled with a high number of balls reduces variation in elastic deflection, enhancing performance. The B.RUNNER BLOCK CR is also notable for its ability to handle heavy loads from all four main directions of loading due to its robust construction. Attachments can be mounted from above onto the runner block, which includes endface fastening threads for all attachments. Two additional mounting screw holes at the center improve rigidity under liftoff and side loading conditions. Designed for quiet and smooth operation, this runner block is ideal as an individual guide in applications where high torque load capacity and torsion resistance are essential. It supports maximum system rigidity through its preloaded O-arrangement and offers compatibility with a wide range of accessories. The permissible ambient temperature range extends from min ... max °C (advisable only for short durations), ensuring reliable performance across various working environments.


Ball runner block, CNS, size 20, Resist CR – coating, accuracy high, preload-free, with ball chain

The ball runner block is highly precise and corrosion-resistant thanks to its Resist CR coating. Additionally, it is characterized by the following product features:
Size 20
Format CNS: Width = compact, length = normal, height = standard
Runner block body made of unalloyed steel CS, matte-silver, hard chrome plated
Preload class C0: Preload-free
Accuracy class H: High
With 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 = 73.0 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Unpacked Weight: 0.300 kg
Area of application: For high torsional moments on rails with restricted lateral space
The same high load ratings in all four main directions of loading
Excellent dynamic characteristics: Excellent dynamic characteristics
Ball runner block body or ball guide rail made of steel with corrosion resistant coating, matte-silver finish, hard chrome plated
High torque load capacity
Attachments on the ball runner block can be mounted from above
End-face fastening thread for all attachments
Optimized entry-zone geometry and high number of balls minimize variation in elastic deflection
Can be used on all BNS ball guide rails
Maximum system rigidity due to preloaded O-arrangement
Wide range of accessories
Ball runner block pre-lubricated at the factory
Improved rigidity under lift-off and side loading conditions due to two additional mounting screw holes at the center of the ball runner block
Quiet, smooth running thanks to optimally designed ball and ball chain return and guideway
Very high torsional moment load capacity and very high torsion resistance – therefore primarily used as an individual guide
Height of runner block22.5
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.
Size E2 (profiled rail systems)32
Footnote friction coefficient μWithout friction of seal
Permissible ambient temperature​0 °C ... +80 °C
FormatCNS - compact, normal, standard height
Self-aligning for compensation of misalignmentsWithout self-alignment
Ball chainWith ball chain
Friction coefficient μ0,002 ... 0,003
Pitch T guide rail60
Height of runner block with guide rail27
Static load rating C018200
Dynamic torsional moment load capacity Mt310
Preload classC0 – Without preload (clearance)
Size footnoteAttention: Ball runner blocks, not combinable with ball guide rail R167. 8.. ..!
Size B1 (profiled rail systems)51.3
Size H (profiled rail system)27
Friction coefficient μ min.0.002
Accuracy classH - Highly accurate
Size K4 (profiled rail systems)3.5
Size B with tolerance (profiled rail systems)73 mm
Size H2 (profiled rail systems)18.3
Size K3 (profiled rail systems)3.5
Size A1 (profiled rail systems)31
Static torsional moment load capacity Mt0410
Runner block or guide railRunner block
Width of runner block62
Size E8.1 (profiled rail systems)53.4
Size E8 (profiled rail systems)18
Length of runner block73
Size E9.1 (profiled rail systems)8.1
Linear guide typeBall rail system
Dynamic load capacity C13700
Static longitudinal moment load capacity ML0170
Size E9 (profiled rail systems)3.4
Size E1 (profiled rail systems)46
Material (profiled rail systems)Hard chrome plated
Size N6 with tolerance (profiled rail systems)12,5 mm ±0,5
Size S5 (profiled rail system)4.4
Max. acceleration amax500
Size A (profiled rail systems)62
Size N6 tolerance (profiled rail systems)±0.5
Size A3 (profiled rail systems)10
Size A2 (profiled rail systems)42
Maximum permissible linear speed vmax5
LubricationWith initial lubrication and preservation
Size S1 (profiled rail systems)5.3
Size N3 (profiled rail systems)6
Size N6 (profiled rail systems)12.5
Friction coefficient μ max.0.003
Size B (profiled rail systems)73
SealSS – Standard seal
Size K2 (profiled rail systems)15
Size V16
Productgroup ID17
Size K1 (profiled rail systems)14.6
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.
Permissible ambient temperature (max)+80
Size S9 thread diameter x lead with tolerance (profiled rail systems)M2,5x1,5 mm +3
Size S9 thread diameter x lead with tolerance (profiled rail systems)+3
Dynamic longitudinal moment load capacity ML130
Size S2 (profiled rail systems)M6
Permissible ambient temperature (min)0
Note: Max. acceleration amaxIf Fcomb◡> 2.8 • Fpr : amax = 50 m/s2
Size T1 min (profiled rail systems)10
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.
Size S9 thread diameter x lead with (profiled rail systems)M2,5x1,5
Internal product informationFor LS – low-friction seal with external longitudinal seal
Weight0.300
Nominal size20/40
Size H1 (profiled rail systems)22.5