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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R165321420 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-025-FLS-C1-N-1
- Size 25
- Format FLS: Width = flange, length = long, height = standard
- Runner block body made of unalloyed steel CS
- Preload class C1: Low preload
- 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.
R165321420 Original Rexroth Linear Bearing Block Specifications
| Parameter | Value | Engineering Explanation |
|---|---|---|
| Nominal size | 25 mm (0.984 in) | Defines the block’s compatibility with size 25 guide rails, ensuring proper fit and load distribution. |
| Format | FLS – flange, long, standard height | Flanged design with extended length for increased stability and load capacity in high-rigidity applications. |
| Material | Carbon steel | Provides high strength and durability, suitable for heavy-duty industrial environments. |
| Preload class | C1 – Low preload | Reduces internal forces for smoother motion and lower wear in dynamic applications. |
| Accuracy class | N – Normal | Standard accuracy for most industrial applications, balancing cost and precision. |
| Seal | SS – Standard seal | Protects against dust and debris, ensuring reliable performance in various environments. |
| Width of runner block | 70 mm (2.756 in) | Determines the block’s footprint, affecting stability and load distribution. |
| Length of runner block | 107.9 mm (4.248 in) | Longer length enhances load capacity and rigidity, ideal for heavy-duty tasks. |
| Height of runner block | 29.9 mm (1.177 in) | Standard height ensures compatibility with common rail systems. |
| Height with guide rail | 36 mm (1.417 in) | Total height including rail, critical for system design and clearance. |
| Dynamic load capacity C100 | 37,300 N | Maximum load the block can handle during motion (100,000 m travel), per DIN ISO 14728-1. |
| Dynamic load capacity C50 | 47,000 N | Higher load capacity for shorter travel (50,000 m), offering flexibility for varied applications. |
| Static load capacity C0 | 52,500 N | Maximum stationary load, ensuring stability under heavy static forces. |
| Maximum acceleration amax | 500 m/s² (if Fcomb > 2.8 • Fpr: 50 m/s²) | Defines the block’s ability to handle rapid speed changes in dynamic systems. |
| Maximum permissible linear speed vmax | 5 m/s | Ensures safe operation at high speeds without compromising performance. |
| Permissible ambient temperature | -10 °C to +80 °C (14 °F to 176 °F), 100 °C (212 °F) for short periods | Wide temperature range supports use in diverse industrial settings. |
| Friction coefficient μ | 0.002–0.003 | Low friction reduces energy consumption and wear, enhancing efficiency. |
| Weight | 0.9 kg (1.98 lbs) | Lightweight yet robust, minimizing system inertia while maintaining strength. |
| Dynamic torsional moment load capacity Mt100 | 530 Nm | Measures resistance to twisting forces during motion (100,000 m travel). |
| Static torsional moment load capacity Mt0 | 750 Nm | Ensures stability against twisting forces when stationary. |
| Dynamic longitudinal moment load capacity ML100 | 530 Nm | Handles longitudinal forces during motion, critical for dynamic stability. |
| Static longitudinal moment load capacity ML0 | 740 Nm | Supports longitudinal forces when stationary, enhancing system reliability. |
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 | C1 – Low preload |
| 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] | 0.9 |
| 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 |
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