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R205E32320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWE-035-SNH-C2-H-1
- Size 35
- Format SNH – slimline, normal, high
- 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 = 110.5 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
R205E32320 Original Rexroth Linear Bearing Block Specifications
The following table outlines the technical parameters of the Rexroth linear bearing block, providing a clear comparison of key metrics and their practical significance.
| Parameter | Value | Engineering Explanation |
|---|---|---|
| Nominal Size | 35 mm | Defines the rail system size, ensuring compatibility with 35 mm profiled rails. |
| Format | SNH – Slimline, Normal, High | Indicates a compact width, standard length, and elevated height for high rigidity. |
| Preload Class | C2 – Medium Preload | Balances rigidity and smoothness, reducing play for precise motion. |
| Accuracy Class | H – Highly Accurate | Ensures minimal deviation in motion, ideal for precision applications. |
| Dynamic Load Capacity C | 42,900 N | Maximum force the block can handle during motion, ensuring durability. |
| Static Load Capacity C0 | 56,600 N | Maximum stationary force the block can withstand without deformation. |
| Width of Runner Block | 70 mm (2.76 in) | Compact width suits space-constrained installations. |
| Length of Runner Block | 110.5 mm (4.35 in) | Provides sufficient contact area for stability and load distribution. |
| Height of Runner Block | 47.4 mm (1.87 in) | Ensures compatibility with standard rail heights while maintaining rigidity. |
| Maximum Acceleration amax | 250 m/s² | Supports high-speed operations without compromising stability. |
| Maximum Permissible Linear Speed vmax | 3 m/s | Defines the top speed for safe, reliable operation. |
| Permissible Ambient Temperature | -10 °C to +80 °C (14 °F to 176 °F), 100 °C (212 °F) for short periods | Operates reliably in a wide range of environmental conditions. |
| Friction Coefficient μ | 0.002–0.003 | Low friction reduces energy loss and wear, enhancing efficiency. |
| Weight | 1.57 kg (3.46 lb) | Lightweight yet robust, minimizing system load. |
| Pitch T Guide Rail | 80 mm (3.15 in) | Standard spacing for mounting holes, ensuring secure rail attachment. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 35 |
| Format | SNH – slimline, normal, high |
| 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] | 70 |
| Length of runner block [mm] | 110.5 |
| Height of runner block [mm] | 47.4 |
| Height runner block with guide rail [mm] | 55 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C [N] | 42900 |
| Dynamic load capacity C100 [N] | 42900 |
| Maximum acceleration rate amax [m/s²] | 250 |
| 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] | 1.57 |
| Dynamic load capacity C50 [N] | 54100 |
| Static load capacity C0 [N] | 56600 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 970 |
| Dynamic torsional moment load capacity Mt100 [Nm] | 770 |
| Static torsional moment load capacity Mt0 [Nm] | 1030 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 720 |
| Dynamic longitudinal moment load capacity ML100 [Nm] | 570 |
| Static longitudinal moment load capacity ML0 [Nm] | 760 |
| Pitch T guide rail [mm] | 80 |
| Dimension A (profiled rail systems) [mm] | 70 |
| Dimension A1 (profiled rail systems) [mm] | 35 |
| Dimension A2 (profiled rail systems) [mm] | 34 |
| Dimension A3 (profiled rail systems) [mm] | 18 |
| Dimension B (profiled rail systems) [mm] | 110.5 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 77 |
| Dimension E1 [mm] | 50 |
| Dimension E2 [mm] | 50 |
| Dimension E8 (profiled rail systems) [mm] | 50 |
| Dimension E9 (profiled rail systems) [mm] | 22.7 |
| Dimension H [mm] | 55 |
| Dimension H1 (profiled rail systems) [mm] | 47.4 |
| Dimension H2 (profiled rail systems) [mm] | 26.5 |
| Dimension K1 (profiled rail systems) [mm] | 20.5 |
| Dimension K2 (profiled rail systems) [mm] | 22.15 |
| Dimension K3 (profiled rail systems) [mm] | 14 |
| Dimension K4 (profiled rail systems) [mm] | 14 |
| Dimension N3 (profiled rail systems) [mm] | 13 |
| Dimension N6 (profiled rail systems) [mm] | 15.5 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M8 |
| Dimension S5 (profiled rail system) [mm] | 9 |
| Dimension S9 | M3x6.5 mm |
| Dimension S9 thread diameter (profiled rail systems) | M3 |
| Dimension S9 lead [mm] | 6.5 |
| Dimension T [mm] | 80 |
| Dimension T1 min [mm] | 16 |
| Dimension V1 [mm] | 8 |
| Height of guide rail H2 [mm] | 26.5 |
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