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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R205E22320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWE-025-SNH-C2-H-1
- Size 25
- 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 = 86.2 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Product Features
- High Rigidity: Outperforms SNS models, ideal for applications requiring restricted transverse space.
- Interchangeable Design: Compatible with multiple profiled rail systems for flexible integration.
- Precision Engineering: Medium preload (C2) and high accuracy (H) for smooth, accurate motion.
- Durable Construction: Made from unalloyed carbon steel (CS) with a standard seal (SS) for contaminant protection.
- High Load Capacity: Static load rating of 30,600 N and dynamic load capacity of 21,800 N.
The Bosch Rexroth B.RUNNER BLOCK CS KWE-025-SNH-C2-H-1 (R205E22320) crafted from unalloyed carbon steel (CS), it ensures durability and seamless integration with various profiled rail systems, including sizes B, H, K, T, N, S, A, and V. With a medium preload (C2) and high accuracy class (H), this linear bearing block guarantees smooth, accurate guidance without a ball chain, making it ideal for demanding industrial environments.
Technical Specifications
| Parameter | Value | Explanation |
|---|---|---|
| Nominal Size | 25 mm | Defines the standard size for compatibility with guide rails. |
| Length of Runner Block | 86.2 mm (3.39 in) | Overall length, ensuring proper fit in compact setups. |
| Width of Runner Block | 48 mm (1.89 in) | Width for stable mounting and load distribution. |
| Height of Runner Block | 34 mm (1.34 in) | Height tailored for size E applications. |
| Static Load Rating C0 | 30,600 N | Maximum load the block can withstand without movement. |
| Dynamic Load Capacity C | 21,800 N | Load capacity during motion, ensuring durability. |
| Dynamic Torsional Moment Load Capacity Mt | 270 Nm | Resistance to twisting forces during operation. |
| Dynamic Longitudinal Moment Load Capacity ML | 220 Nm | Capacity to handle longitudinal forces for stability. |
| Max. Acceleration amax | 250 m/s² | Maximum acceleration for dynamic applications. |
| Maximum Permissible Linear Speed vmax | 3 m/s | Top speed for efficient linear motion. |
| Friction Coefficient μ | 0.002 … 0.003 | Low friction for smooth operation and energy efficiency. |
| Permissible Ambient Temperature | -10 °C to +80 °C (14 °F to 176 °F) | Operating temperature range, with short-term tolerance up to 100 °C (212 °F). |
| Weight | 0.59 kg (1.3 lbs) | Lightweight for easy integration without sacrificing strength. |
| Preload Class | C2 – Average Preload | Ensures controlled stiffness for precise motion. |
| Accuracy Class | H – Highly Accurate | Guarantees minimal deviation in linear movement. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 25 |
| 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] | 48 |
| Length of runner block [mm] | 86.2 |
| Height of runner block [mm] | 34 |
| Height runner block with guide rail [mm] | 40 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C [N] | 21800 |
| Dynamic load capacity C100 [N] | 21800 |
| 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] | 0.59 |
| Dynamic load capacity C50 [N] | 27500 |
| Static load capacity C0 [N] | 30600 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 340 |
| Dynamic torsional moment load capacity Mt100 [Nm] | 270 |
| Static torsional moment load capacity Mt0 [Nm] | 380 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 280 |
| Dynamic longitudinal moment load capacity ML100 [Nm] | 220 |
| Static longitudinal moment load capacity ML0 [Nm] | 310 |
| Pitch T guide rail [mm] | 60 |
| Dimension A (profiled rail systems) [mm] | 48 |
| Dimension A1 (profiled rail systems) [mm] | 24 |
| Dimension A2 (profiled rail systems) [mm] | 23 |
| Dimension A3 (profiled rail systems) [mm] | 12.5 |
| 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] | 35 |
| Dimension E2 [mm] | 35 |
| Dimension E8 (profiled rail systems) [mm] | 33 |
| Dimension E9 (profiled rail systems) [mm] | 17 |
| Dimension H [mm] | 40 |
| Dimension H1 (profiled rail systems) [mm] | 34 |
| Dimension H2 (profiled rail systems) [mm] | 20 |
| Dimension K1 (profiled rail systems) [mm] | 17.45 |
| Dimension K2 (profiled rail systems) [mm] | 17.5 |
| Dimension K3 (profiled rail systems) [mm] | 11 |
| Dimension K4 (profiled rail systems) [mm] | 11 |
| Dimension N3 (profiled rail systems) [mm] | 9 |
| Dimension N6 (profiled rail systems) [mm] | 11.3 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M6 |
| Dimension S5 (profiled rail system) [mm] | 7 |
| Dimension S9 | M3x6.5 mm |
| Dimension S9 thread diameter (profiled rail systems) | M3 |
| Dimension S9 lead [mm] | 6.5 |
| Dimension T [mm] | 60 |
| Dimension T1 min [mm] | 13 |
| Dimension V1 [mm] | 7.5 |
| Height of guide rail H2 [mm] | 20 |
FAQ
1. What is the primary application of the Bosch Rexroth B.RUNNER BLOCK CS KWE-025-SNH-C2-H-1?
It is designed for applications requiring high rigidity and precise linear motion in restricted transverse spaces, such as CNC machines, automation systems, and robotics.
2. Is the linear bearing block compatible with other rail systems?
Yes, its interchangeable design allows seamless integration with various Bosch Rexroth profiled rail systems, including sizes B, H, K, T, N, S, A, and V.
3. What is the preload and accuracy class of this runner block?
It features a medium preload class (C2) and a high accuracy class (H) for precise and controlled motion.
4. How does the standard seal (SS) benefit the runner block?
The standard seal protects against contaminants like dust and debris, ensuring reliable operation and extended service life.
5. What are the temperature limits for this linear bearing block?
It operates between -10 °C to +80 °C (14 °F to 176 °F), with short-term tolerance up to 100 °C (212 °F).
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