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R162381320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-020-SLS-C1-H-1
- Size 20
- Format SLS: Width = slimline, length = long, height = standard
- Runner block body made of unalloyed steel CS
- Preload class C1: Low preload
- Accuracy class H: High
- 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 = 91.0 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
R162381320 Original Rexroth Linear Bearing Block Parameters
The R162381320 linear bearing block is designed to meet stringent engineering requirements. Below is a detailed comparison of its technical specifications:
| Parameter | Value | Engineering Explanation |
|---|---|---|
| Nominal Size | 20 mm (0.787 in) | Defines the standard size for compatibility with guide rails, ensuring proper fit. |
| Width of Runner Block (A) | 44 mm (1.732 in) | Determines the transverse space required, ideal for slimline applications. |
| Length of Runner Block (B) | 91 mm (3.583 in) | Longer length enhances stability and load distribution. |
| Height of Runner Block (H1) | 25.35 mm (0.998 in) | Standard height ensures compatibility with common rail systems. |
| Height with Guide Rail (H) | 30 mm (1.181 in) | Total height when mounted, critical for system integration. |
| Dynamic Load Capacity (C100) | 29,600 N (6,644 lbf) | Maximum load during motion for 100,000 m travel, per DIN ISO 14728-1. |
| Static Load Capacity (C0) | 41,800 N (9,392 lbf) | Maximum stationary load the block can withstand. |
| Dynamic Torsional Moment (Mt100) | 380 Nm (280 ft-lbf) | Resistance to twisting forces during 100,000 m travel. |
| Static Torsional Moment (Mt0) | 540 Nm (398 ft-lbf) | Stationary resistance to twisting forces. |
| Maximum Acceleration (amax) | 500 m/s² (1,640 ft/s²) | Maximum acceleration under standard conditions; reduces to 50 m/s² if combined forces exceed limits. |
| Maximum Linear Speed (vmax) | 5 m/s (16.4 ft/s) | Top speed for safe and efficient operation. |
| Friction Coefficient (μ) | 0.002 – 0.003 | Low friction ensures energy-efficient motion, excluding seal friction. |
| Weight | 0.45 kg (0.992 lb) | Lightweight design minimizes system inertia. |
| Permissible Ambient Temperature | -10 °C to +80 °C (14 °F to 176 °F); 100 °C (212 °F) for short periods | Operating temperature range; consult Rexroth for sub-zero conditions. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 20 |
| Format | SLS – slimline, long, standard height |
| Model | High-precision ball runner block |
| Material | Carbon steel |
| Preload class | C1 – Low preload |
| Accuracy class | H – Highly accurate |
| Seal | SS – Standard seal |
| Ball chain | Without ball chain (standard) |
| Self-aligning for compensation of misalignments | Without self-alignment |
| Width of runner block [mm] | 44 |
| Length of runner block [mm] | 91 |
| Height of runner block [mm] | 25.35 |
| Height runner block with guide rail [mm] | 30 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C100 [N] | 29600 |
| 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] | 0.45 |
| Dynamic load capacity C50 [N] | 37300 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 41800 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 480 |
| 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] | 380 |
| 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] | 540 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 430 |
| 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] | 340 |
| 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] | 490 |
| Pitch T guide rail [mm] | 60 |
| Dimension A (profiled rail systems) [mm] | 44 |
| Dimension A1 (profiled rail systems) [mm] | 22 |
| Dimension A2 (profiled rail systems) [mm] | 20 |
| Dimension A3 (profiled rail systems) [mm] | 12 |
| Dimension B (profiled rail systems) [mm] | 91 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 65.6 |
| Dimension E1 [mm] | 32 |
| Dimension E2 (profiled rail systems) [mm] | 50 |
| Dimension E8 (profiled rail systems) [mm] | 32.5 |
| Dimension E9 (profiled rail systems) [mm] | 7.3 |
| Dimension H [mm] | 30 |
| Dimension H1 (profiled rail systems) [mm] | 25.35 |
| Dimension H2 with cover strip (profiled rail systems) [mm] | 20.75 |
| Dimension H2 without cover strip (profiled rail systems) [mm] | 20.55 |
| Dimension K1 (profiled rail systems) [mm] | 14.8 |
| Dimension K2 (profiled rail systems) [mm] | 14.8 |
| Dimension K3 (profiled rail systems) [mm] | 3.35 |
| Dimension K4 (profiled rail systems) [mm] | 3.35 |
| Dimension N3 (profiled rail systems) [mm] | 7.5 |
| Dimension N6 (profiled rail systems) [mm] | 13.2 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M5 |
| Dimension S5 (profiled rail system) [mm] | 6 |
| 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] | 6 |
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