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R165322320 Original Rexroth Linear Bearing Block

BALL RUNNER BLOCK CARBON STEEL KWD-025-FLS-C2-H-1

  • Size 25
  • Format FLS: Width = flange, length = long, height = standard
  • Runner block body made of unalloyed steel CS
  • Preload class C2: Medium preload
  • Accuracy class H: High
  • 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 = 107.9 mm
  • Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
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R165322320 Original Rexroth Linear Bearing Block Features

  • High Precision: Accuracy class H ensures highly accurate motion, ideal for CNC machines and automation systems.
  • Robust Design: Medium preload (C2) and carbon steel construction provide high rigidity in all load directions.
  • Low Friction: Friction coefficient of 0.002–0.003 minimizes energy loss, enhancing efficiency.
  • Versatile Mounting: Attachments can be mounted from above or below, with two additional central screw holes for improved rigidity under side loading.
  • Integrated Sealing: All-around sealing protects against contaminants, extending service life in harsh environments.
  • Interchangeability: Compatible with all SNS/SNO ball guide rails, offering flexibility in system design.

Technical Specifications

Parameter Value Explanation
Nominal Size 25 mm (0.984 in) Defines the size of the linear bearing block for compatibility with guide rails.
Width of Runner Block (A) 70 mm (2.756 in) Width of the block, ensuring stable mounting and load distribution.
Length of Runner Block (B) 107.9 mm (4.248 in) Total length, affecting travel distance and mounting space.
Height of Runner Block (H1) 29.9 mm (1.177 in) Height of the block alone, critical for system clearance.
Height with Guide Rail (H) 36 mm (1.417 in) Total height including rail, defining vertical space requirements.
Dynamic Load Capacity (C100) 37,300 N (8,378 lbf) Maximum load the block can handle during motion (100,000 m travel).
Static Load Capacity (C0) 52,500 N (11,798 lbf) Maximum load the block can withstand when stationary.
Dynamic Torsional Moment (Mt100) 530 Nm (390.91 ft-lb) Torsional load capacity during motion, ensuring stability under torque.
Static Torsional Moment (Mt0) 750 Nm (553.17 ft-lb) Torsional load capacity when stationary, critical for heavy loads.
Maximum Acceleration (amax) 500 m/s² (1,640 ft/s²) Maximum acceleration the block can handle, ensuring dynamic performance.
Maximum Linear Speed (vmax) 5 m/s (16.4 ft/s) Top speed for smooth and controlled motion.
Friction Coefficient (μ) 0.002–0.003 Low friction ensures energy efficiency and smooth operation.
Weight 0.9 kg (1.98 lb) Lightweight design reduces system inertia.
Permissible Ambient Temperature -10 °C to +80 °C (14 °F to 176 °F); 100 °C (212 °F) for short periods Operating temperature range, ensuring reliability in varied conditions.
Preload Class C2 – Medium Preload Balances rigidity and smooth motion for demanding applications.
Accuracy Class H – Highly Accurate Ensures precise positioning for high-precision tasks.
Seal Type SS – Standard Seal Protects internal components from dust and debris.
Lubrication Initial lubrication with Dynalub 510 grease Reduces maintenance frequency and extends service life.

Technical Attributes

Version Ball rail system
Nominal size [mm] 25
Format FLS – flange, long, standard height
Model High-precision ball runner block
Material Carbon steel
Preload class C2 – Medium preload
Accuracy class H – Highly accurate
Seal SS – Standard seal
Ball chain Without ball chain (standard)
Self-aligning for compensation of misalignments Without self-alignment
Width of runner block [mm] 70
Length of runner block [mm] 107.9
Height of runner block [mm] 29.9
Height runner block with guide rail [mm] 36
Lubrication With initial lubrication and preservation
Dynamic load capacity C100 [N] 37300
Note: dynamic load capacity C100 Dynamic load capacities and load moments are based on a stroke travel of 100,000 m according to DIN ISO 14728-1.
Maximum acceleration rate amax [m/s²] 500
Note: Max. acceleration amax If Fcomb◡> 2.8 • Fpr : amax = 50 m/s2
Maximum permissible linear speed vmax [m/s] 5
Permissible ambient temperature (min. … max.) -10 °C … +80 °C
Note: permissible ambient temperature (min. … max.) 100 °C admissible for short time. For operation at negative temperatures, please consult us.
Friction coefficient μ 0.002 … 0.003
Note: friction coefficient μ Without friction of seal
Weight [kg] 0.9
Dynamic load capacity C50 [N] 47000
Note: dynamic load capacity C50 Dynamic load capacity and load moments based on a travel of 50,000 m.
Static load capacity C0 [N] 52500
Dynamic torsional moment load capacity Mt50 [Nm] 670
Note: Dynamic torsional moment load capacity Mt50 Dynamic load capacity and load moments based on a travel of 50,000 m.
Dynamic torsional moment load capacity Mt100 [Nm] 530
Note: Dynamic torsional moment load capacity Mt100 Dynamic load capacities and load moments are based on a stroke travel of 100,000 m according to DIN ISO 14728-1.
Static torsional moment load capacity Mt0 [Nm] 750
Dynamic longitudinal moment load capacity ML50 [Nm] 670
Note: Dynamic longitudinal moment load capacity ML50 Dynamic load capacity and load moments based on a travel of 50,000 m.
Dynamic longitudinal moment load capacity ML100 [Nm] 530
Note: Dynamic longitudinal moment load capacity ML100 Dynamic load capacities and load moments are based on a stroke travel of 100,000 m according to DIN ISO 14728-1.
Static longitudinal moment load capacity ML0 [Nm] 740
Pitch T guide rail [mm] 60
Dimension A (profiled rail systems) [mm] 70
Dimension A1 (profiled rail systems) [mm] 35
Dimension A2 (profiled rail systems) [mm] 23
Dimension A3 (profiled rail systems) [mm] 23.5
Dimension B (profiled rail systems) [mm] 107.9
Dimension B tolerance (profiled rail systems) [mm] +0.5
Dimension B1 [mm] 79.5
Dimension E1 [mm] 57
Dimension E2 (profiled rail systems) [mm] 45
Dimension E3 (profiled rail systems) [mm] 40
Dimension E8 (profiled rail systems) [mm] 38.3
Dimension E9 (profiled rail systems) [mm] 11.5
Dimension H [mm] 36
Dimension H1 (profiled rail systems) [mm] 29.9
Dimension H2 with cover strip (profiled rail systems) [mm] 24.45
Dimension H2 without cover strip (profiled rail systems) [mm] 24.25
Dimension K1 (profiled rail systems) [mm] 23.3
Dimension K2 (profiled rail systems) [mm] 24.45
Dimension K3 (profiled rail systems) [mm] 5.5
Dimension K4 (profiled rail systems) [mm] 5.5
Dimension N1 (profiled rail systems) [mm] 9.3
Dimension N2 (profiled rail systems) [mm] 7
Dimension N6 (profiled rail systems) [mm] 15.2
Dimension N6 tolerance (profiled rail systems) [mm] ±0.5
Dimension S1 (profiled rail systems) [mm] 6.7
Dimension S2 (profiled rail systems) M8
Dimension S5 (profiled rail system) [mm] 7
Dimension S9 M3x5 mm
Dimension S9 thread diameter (profiled rail systems) M3
Dimension S9 lead [mm] 5
Dimension T1 min [mm] 13
Dimension V1 [mm] 7.5

 

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