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R165329420 Original Rexroth Linear Bearing Block

BALL RUNNER BLOCK CARBON STEEL KWD-025-FLS-C0-N-1

  • Size 25
  • Format FLS: Width = flange, length = long, height = standard
  • Runner block body made of unalloyed steel CS
  • Preload class C0: Preload-free
  • Accuracy class N: Standard
  • 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.

Key Product Features

  • High Rigidity: Supports applications with a single runner block per rail due to high load ratings in all four directions.
  • Low Friction: Friction coefficient of 0.002–0.003 ensures smooth operation, even under external loads.
  • Precision Engineering: Patented entry zone improves travel accuracy significantly.
  • Long-Term Lubrication: Dynalub 510 grease supports years of maintenance-free operation.
  • Versatile Mounting: Attachments can be mounted from above or below, with two additional central screw holes for enhanced stability.
  • Optional Measuring System: Inductive, wear-free system for precise movement tracking.

Technical Specifications

The Rexroth R165329420 linear bearing block is engineered for performance. Below is a detailed comparison of its technical parameters, presented in a structured format for clarity.

Parameter Value Engineering Explanation
Nominal size 25 mm (0.98 inches) Defines the block’s compatibility with 25 mm guide rails, ensuring proper fit and load distribution.
Width of runner block (A) 70 mm (2.76 inches) Provides a stable base for mounting, enhancing load-bearing capacity.
Length of runner block (B) 107.9 mm (4.25 inches) Longer length increases contact area, improving stability and load capacity.
Height of runner block (H1) 29.9 mm (1.18 inches) Compact height ensures compatibility with space-constrained setups.
Height with guide rail (H) 36 mm (1.42 inches) Total height including rail, critical for system integration.
Dynamic load capacity C100 37,300 N Maximum load the block can handle during motion (100,000 m travel), ensuring durability.
Static load capacity C0 52,500 N Maximum stationary load, ideal for heavy-duty applications.
Dynamic torsional moment Mt100 530 Nm Resistance to twisting forces during motion, enhancing system stability.
Static torsional moment Mt0 750 Nm Stationary resistance to twisting, ensuring rigidity under load.
Maximum acceleration (amax) 500 m/s² (1640 ft/s²) Supports high-speed applications with rapid starts and stops.
Maximum linear speed (vmax) 5 m/s (16.4 ft/s) Ensures efficient operation in high-speed linear motion systems.
Friction coefficient (μ) 0.002–0.003 Low friction reduces energy loss and wear, extending service life.
Weight 0.94 kg (2.07 lbs) Lightweight yet robust, balancing ease of installation with strength.
Permissible ambient temperature -10°C to +80°C (14°F to 176°F), 100°C (212°F) short-term Wide temperature range supports diverse industrial environments.

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 C0 – Without preload (clearance)
Accuracy class N – Normal
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] 0.94
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

FAQ

1. What guide rails are compatible with the R165329420 linear bearing block?
The block is compatible with all SNS/SNO ball guide rails, offering flexibility in system design.

2. How often does the R165329420 require lubrication?
With Dynalub 510 grease, it supports long-term lubrication, often lasting several years depending on operating conditions.

3. Can the R165329420 operate in extreme temperatures?
It operates reliably from -10°C to +80°C (14°F to 176°F), with short-term tolerance up to 100°C (212°F).

4. What is the preload class of this linear bearing block?
The R165329420 has a C0 preload class, meaning it is preload-free, ideal for applications requiring minimal friction.

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