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R18515232X Original Rexroth Linear Bearing Block
ROLLER RUNNER BLOCK CARBON STEEL RWD-055-FNS-C2-H-2
- Size 55
- Format FNS: Width = flange, length = normal, height = standard
- Runner block body made of unalloyed steel CS
- Preload class C2: Medium preload
- Accuracy class H: High
- Without roller chain
- Preserved
- Without initial lubrication
- 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 = 170.7 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
R18515232X Original Rexroth Linear Bearing Block Specifications
The following table outlines the critical technical parameters of the Rexroth R18515232X roller runner block, providing engineers with precise data for integration into linear motion systems.
| Parameter | Value | Engineering Explanation |
|---|---|---|
| Nominal size | 55 mm (2.17 inches) | Defines the standard size for compatibility with corresponding guide rails. |
| Width of runner block | 140 mm (5.51 inches) | Ensures stable mounting and load distribution across the block. |
| Length of runner block | 170.65 mm (6.72 inches) | Provides sufficient contact area for high load capacity. |
| Height of runner block | 58 mm (2.28 inches) | Compact height for integration into space-constrained systems. |
| Height with guide rail | 70 mm (2.76 inches) | Total height when mounted, critical for system design clearance. |
| Dynamic load capacity C100 | 140,400 N | Maximum load the block can handle during motion (100,000 m travel). |
| Dynamic load capacity C50 | 173,000 N | Load capacity for 50,000 m travel, offering higher ratings for shorter distances. |
| Static load capacity C0 | 284,700 N | Maximum stationary load the block can withstand without deformation. |
| Dynamic torsional moment Mt100 | 4,120 Nm | Resistance to twisting forces during motion (100,000 m travel). |
| Static torsional moment Mt0 | 8,350 Nm | Stationary resistance to torsional forces, ensuring stability. |
| Maximum acceleration amax | 150 m/s² | Maximum acceleration under preload, critical for high-speed applications. |
| Maximum linear speed vmax | 4 m/s | Top speed for smooth and controlled linear motion. |
| Friction coefficient μ | 0.0004 – 0.001 | Low friction ensures energy efficiency and reduced wear. |
| Permissible ambient temperature | -10 °C to +80 °C (14 °F to 176 °F), 100 °C (212 °F) short-term | Operating temperature range, with short-term tolerance for extreme conditions. |
| Weight | 5.51 kg (12.15 lbs) | Balanced weight for structural integrity without excessive mass. |
| Material | Carbon steel | High-strength material for durability and load-bearing capacity. |
| Seal | DS – Double-lip seal | Provides robust protection against contaminants, extending lifespan. |
| Preload class | C2 – Medium preload | Ensures optimal rigidity and precision under moderate loads. |
| Accuracy class | H – Highly accurate | Guarantees precise positioning for high-tolerance applications. |
Technical Attributes
| Version | Roller rail systems |
| Nominal size [mm] | 55 |
| Format | FNS – flange, normal, standard height |
| Model | High-precision roller runner block |
| Material | Carbon steel |
| Preload class | C2 – Medium preload |
| Accuracy class | H – Highly accurate |
| Seal | DS – Double-lip seal |
| Width of runner block [mm] | 140 |
| Length of runner block [mm] | 170.65 |
| Height of runner block [mm] | 58 |
| Height runner block with guide rail [mm] | 70 |
| Lubrication | With preservation and without initial lubrication |
| Dynamic load capacity C100 [N] | 140400 |
| 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] | 150 |
| Note: Max. acceleration amax | Requirement: There must be preload, even during operation under load. |
| Maximum permissible linear speed vmax [m/s] | 4 |
| Permissible ambient temperature (min. … max.) | -10 °C … +80 °C |
| Note: permissible ambient temperature (min. … max.) | 100°C admissible for short time. For operation at lower minus temperatures, please consult us. |
| Friction coefficient μ | 0.0004 … 0.001 |
| Note: friction coefficient μ | Without friction of seal |
| Weight [kg] | 5.51 |
| Dynamic load capacity C50 [N] | 173000 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 284700 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 5070 |
| 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] | 4120 |
| 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] | 8350 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 3210 |
| 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] | 2610 |
| 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] | 5290 |
| Footnote friction force FR | Guideline value for frictional drags of the complete, sealed and lubricated roller runner block. |
| Pitch T guide rail [mm] | 60 |
| Dimension A (profiled rail systems) [mm] | 140 |
| Dimension A1 (profiled rail systems) [mm] | 70 |
| Dimension A2 (profiled rail systems) [mm] | 53 |
| Dimension A3 (profiled rail systems) [mm] | 43.5 |
| Dimension A4 (profiled rail system) [mm] | 63.3 |
| Dimension B (profiled rail systems) [mm] | 170.65 |
| Dimension B1 [mm] | 123.1 |
| Dimension diameter S5 (profiled rail systems) | 16 |
| Dimension E1 [mm] | 116 |
| Dimension E2 (profiled rail systems) [mm] | 95 |
| Dimension E3 (profiled rail systems) [mm] | 70 |
| Dimension E8 (profiled rail systems) [mm] | 74.2 |
| Dimension E9 (profiled rail systems) [mm] | 18.85 |
| Dimension H [mm] | 70 |
| Dimension H1 (profiled rail systems) [mm] | 58 |
| Dimension H2 with cover strip (profiled rail systems) [mm] | 47.85 |
| Dimension H2 without cover strip (profiled rail systems) [mm] | 47.55 |
| Dimension H3 [mm] | 60 |
| Dimension K1 (profiled rail systems) [mm] | 21.75 |
| Dimension K2 (profiled rail systems) [mm] | 24.9 |
| Dimension N1 (profiled rail systems) [mm] | 18 |
| Dimension N2 (profiled rail systems) [mm] | 13.7 |
| Dimension N6 (profiled rail systems) [mm] | 28.7 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S1 thread diameter (profiled rail systems) [mm] | 12.4 |
| Dimension S2 (profiled rail systems) | M14 |
| Dimension S9 | M5 |
| Dimension S9 thread diameter (profiled rail systems) | M5 |
| Dimension T1 min [mm] | 20 |
| Dimension V1 [mm] | 12.6 |
| Dimension V1 with tolerance (profiled rail systems) | 12,6 mm ±1,2 |
| Dimension V1 tolerance (profiled rail systems) [mm] | ±1.2 |
| Note of Dimension T | Dimension T = Rail separation of the Roller Guide Rail |
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