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R165129420 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-025-FNS-C0-N-1
- Size 25
- Format FNS: Width = flange, length = normal, 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 = 86.2 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
R165129420 Original Rexroth Linear Bearing Block Specifications
The following table outlines the key technical parameters of the Rexroth R165129420 linear bearing block, with conversions from metric to imperial units for broader applicability:
| Parameter | Value | Engineering Explanation |
|---|---|---|
| Nominal Size | 25 mm | Indicates the standard size of the linear bearing block, ensuring compatibility with corresponding guide rails. |
| Width of Runner Block | 70 mm (2.76 inches) | Defines the flange width, providing a stable base for mounting and load distribution. |
| Length of Runner Block | 86.2 mm (3.39 inches) | Total length of the block, critical for fitting within system constraints. |
| Height of Runner Block | 29.9 mm (1.18 inches) | Height of the block alone, affecting the overall system height when paired with a rail. |
| Height with Guide Rail | 36 mm (1.42 inches) | Total height including the guide rail, essential for system design clearance. |
| Dynamic Load Capacity C100 | 28600 N (6429 lbf) | Maximum dynamic load the block can handle for 100,000 m travel, per DIN ISO 14728-1. |
| Static Load Capacity C0 | 35900 N (8069 lbf) | Maximum static load the block can withstand without deformation. |
| Dynamic Torsional Moment Mt100 | 410 Nm (302 ft-lb) | Torsional load capacity for 100,000 m travel, critical for rotational stability. |
| Static Torsional Moment Mt0 | 510 Nm (376 ft-lb) | Static torsional load capacity, ensuring stability under rotational forces. |
| Dynamic Longitudinal Moment ML100 | 290 Nm (214 ft-lb) | Longitudinal moment capacity for 100,000 m travel, supporting linear stability. |
| Static Longitudinal Moment ML0 | 360 Nm (265 ft-lb) | Static longitudinal moment capacity, ensuring linear load resistance. |
| Maximum Acceleration amax | 500 m/s² (1640 ft/s²) | Maximum acceleration the block can handle, critical for high-speed applications. |
| Maximum Linear Speed vmax | 5 m/s (16.4 ft/s) | Maximum permissible speed, ensuring safe and efficient operation. |
| Friction Coefficient μ | 0.002–0.003 | Low friction range for smooth motion and reduced energy loss. |
| Weight | 0.68 kg (1.50 lbs) | Lightweight design for easy integration into various systems. |
| Permissible Ambient Temperature | -10 °C to +80 °C (14 °F to 176 °F), 100 °C (212 °F) for short periods | Operating temperature range, with short-term high-temperature tolerance. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 25 |
| Format | FNS – flange, normal, 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] | 86.2 |
| 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] | 28600 |
| 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] | 0.68 |
| Dynamic load capacity C50 [N] | 36000 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 35900 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 520 |
| 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] | 410 |
| 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] | 510 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 370 |
| 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] | 290 |
| 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] | 360 |
| 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] | 86.2 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 57.8 |
| 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] | 12.45 |
| Dimension K2 (profiled rail systems) [mm] | 13.6 |
| 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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