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R205A42320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWE-045-FNS-C2-H-1
- Size 45
- Format FNS – flanged, normal, standard height
- Runner block body made of unalloyed steel CS
- Preload class C2: Medium preload
- Accuracy class H: Highly accurate
- Without ball chain
- With initial lubrication and preservation
- Runner block body in standard version
- Overall length of the runner block = 137.5 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
R205A42320 Original Rexroth Linear Bearing Block Specifications
The following table outlines the technical parameters of the Bosch Rexroth Linear Bearing Block R205A42320, providing a clear comparison of key metrics and their significance in engineering applications.
| Parameter | Value | Engineering Significance |
|---|---|---|
| Nominal Size | 45 mm (1.77 inches) | Defines the block’s compatibility with standard guide rails, ensuring proper fit. |
| Format | FNS – Flanged, Normal, Standard Height | Flanged design allows mounting from multiple directions, enhancing installation flexibility. |
| Width of Runner Block | 120 mm (4.72 inches) | Wider block increases stability under lateral loads. |
| Length of Runner Block | 137.5 mm (5.41 inches) | Longer length supports higher load capacities and smoother motion. |
| Height of Runner Block | 50.3 mm (1.98 inches) | Standard height ensures compatibility with common rail systems. |
| Dynamic Load Capacity C | 62,000 N | Indicates the block’s ability to handle dynamic forces during operation. |
| Static Load Capacity C0 | 83,000 N | Measures the maximum stationary load the block can withstand. |
| Dynamic Torsional Moment Load Capacity Mt50 | 1,790 Nm | Reflects resistance to twisting forces, critical for stability. |
| Static Torsional Moment Load Capacity Mt0 | 1,930 Nm | Ensures the block remains stable under static torsional loads. |
| Maximum Acceleration Rate amax | 250 m/s² (820 ft/s²) | Supports high-speed applications with rapid acceleration. |
| Maximum Permissible Linear Speed vmax | 3 m/s (9.84 ft/s) | Defines the top speed for safe and efficient operation. |
| Permissible Ambient Temperature | -10 °C to +80 °C (14 °F to 176 °F), 100 °C (212 °F) for short periods | Wide temperature range suits diverse industrial environments. |
| Friction Coefficient μ | 0.002–0.003 | Low friction enhances energy efficiency and reduces wear. |
| Weight | 2.92 kg (6.44 lbs) | Moderate weight balances durability and ease of handling. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 45 |
| Format | FNS – flange, normal, standard height |
| Preload class | C2 – Medium preload |
| Accuracy class | H – Highly accurate |
| Seal | SS – Standard seal |
| Ball chain | Without ball chain (standard) |
| Width of runner block [mm] | 120 |
| Length of runner block [mm] | 137.5 |
| Height of runner block [mm] | 50.3 |
| Height runner block with guide rail [mm] | 60 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C [N] | 62000 |
| Dynamic load capacity C100 [N] | 62000 |
| Maximum acceleration rate amax [m/s²] | 250 |
| Note: Max. acceleration amax | If Fcomb◡> 2.8 • Fpr : amax = 50 m/s2 |
| Maximum permissible linear speed vmax [m/s] | 3 |
| Permissible ambient temperature (min. … max.) | -10 °C … +80 °C |
| Note: permissible ambient temperature (min. … max.) | 100 °C admissible for short time. |
| Friction coefficient μ | 0.002 … 0.003 |
| Note: friction coefficient μ | Friction coefficient µ without seal friction |
| Weight [kg] | 2.92 |
| Dynamic load capacity C50 [N] | 78100 |
| Static load capacity C0 [N] | 83000 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 1790 |
| Dynamic torsional moment load capacity Mt100 [Nm] | 1420 |
| Static torsional moment load capacity Mt0 [Nm] | 1930 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 1320 |
| Dynamic longitudinal moment load capacity ML100 [Nm] | 1050 |
| Static longitudinal moment load capacity ML0 [Nm] | 1420 |
| Pitch T guide rail [mm] | 105 |
| Dimension A (profiled rail systems) [mm] | 120 |
| Dimension A1 (profiled rail systems) [mm] | 60 |
| Dimension A2 (profiled rail systems) [mm] | 45 |
| Dimension A3 (profiled rail systems) [mm] | 37.5 |
| Dimension B (profiled rail systems) [mm] | 137.5 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 97 |
| Dimension E1 [mm] | 100 |
| Dimension E2 [mm] | 80 |
| Dimension E8 (profiled rail systems) [mm] | 61 |
| Dimension E9 (profiled rail systems) [mm] | 19.5 |
| Dimension H [mm] | 60 |
| Dimension H1 (profiled rail systems) [mm] | 50.3 |
| Dimension H2 (profiled rail systems) [mm] | 33 |
| Dimension K1 (profiled rail systems) [mm] | 17.3 |
| Dimension K2 (profiled rail systems) [mm] | 19.5 |
| Dimension K3 (profiled rail systems) [mm] | 10.5 |
| Dimension K4 (profiled rail systems) [mm] | 10.5 |
| Dimension N1 (profiled rail systems) [mm] | 15 |
| Dimension N6 (profiled rail systems) [mm] | 17 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S1 (profiled rail systems) [mm] | 10.4 |
| Dimension S2 (profiled rail systems) | M12 |
| Dimension S5 (profiled rail system) [mm] | 14 |
| Dimension S9 | M3x6.5 mm |
| Dimension S9 thread diameter (profiled rail systems) | M3 |
| Dimension S9 lead [mm] | 6.5 |
| Dimension T [mm] | 105 |
| Dimension T1 min [mm] | 18 |
| Dimension V1 [mm] | 10 |
| Height of guide rail H2 [mm] | 33 |
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