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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R166211420 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK SUPER CARBON STEEL KWD-015-SKS-C1-N-1
- Size 15
- Format SKS: Width = slimline, length = short, height = standard
- Runner block body made of carbon steel CS
- Preload class C1: Low preload
- Accuracy class N: Normal
- 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 = 44.7 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Key Product Features
- Self-Aligning Design: Compensates for misalignments up to 10 arcminutes, ensuring consistent performance in structures with large tolerances.
- Compact SKS Format: Slimline width (34 mm/1.34 in), short length (44.7 mm/1.76 in), and standard height (19.9 mm/0.78 in) for space-constrained applications.
- High Load Capacity: Equal load ratings in all four main directions, with a dynamic load capacity of 3900 N (C100) and 4910 N (C50).
- Low Noise Operation: Optimized ball return and entry design for smooth, quiet motion.
- Interchangeability: Compatible with all SNS ball guide rails, offering flexibility in system design.
- Robust Construction: Carbon steel body with metal-threaded lube fittings for durability and easy maintenance.
Designed for seamless integration, the R166211420 offers limitless interchangeability within its accuracy class, enabling engineers to pair it with various guide rails. Its low preload (C1) and standard accuracy (N) provide smooth operation, while the initial lubrication with Dynalub 510 grease ensures long-term performance. Whether used in CNC machines or robotic systems, this linear guide component delivers reliability and efficiency.
Technical Specifications
| Parameter | Value | Explanation |
|---|---|---|
| Nominal Size | 15 mm (0.59 in) | Defines the standard size for compatibility with guide rails. |
| Width of Runner Block | 34 mm (1.34 in) | Slimline width for compact installations. |
| Length of Runner Block | 44.7 mm (1.76 in) | Short length optimizes space usage. |
| Height of Runner Block | 19.9 mm (0.78 in) | Standard height ensures stability. |
| Dynamic Load Capacity C100 | 3900 N | Maximum load capacity for 100,000 m travel per DIN ISO 14728-1. |
| Dynamic Load Capacity C50 | 4910 N | Load capacity for 50,000 m travel, 26% higher than C100. |
| Maximum Dynamic Load Fmax | 1500 N | Peak dynamic load the block can withstand. |
| Maximum Acceleration amax | 500 m/s² (1640 ft/s²) | Supports high-speed applications; reduces to 50 m/s² under specific load conditions. |
| Maximum Linear Speed vmax | 5 m/s (16.4 ft/s) | Ensures rapid motion for dynamic systems. |
| Friction Coefficient μ | 0.002–0.003 | Low friction for efficient, smooth operation. |
| Permissible Ambient Temperature | -10°C to +80°C (14°F to 176°F); 100°C (212°F) for short periods | Wide temperature range for diverse environments. |
| Weight | 0.14 kg (0.31 lbs) | Lightweight design reduces system load. |
| Preload Class | C1 – Low Preload | Minimizes resistance for smooth motion. |
| Accuracy Class | N – Normal | Standard precision for general-purpose applications. |
| Seal Type | SS – Standard Seal | Protects against contaminants without adding friction. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 15 |
| Format | SKS – slimline, short, standard height |
| Model | Super 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 | With self-alignment |
| Width of runner block [mm] | 34 |
| Length of runner block [mm] | 44.7 |
| Height of runner block [mm] | 19.9 |
| Height runner block with guide rail [mm] | 24 |
| Lubrication | With initial lubrication and preservation |
| Maximum dynamic load Fmax [N] | 1500 |
| Dynamic load capacity C100 [N] | 3900 |
| 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 |
| Maximum permissible torsional moment Mt max [Nm] | 15 |
| 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] | 0.14 |
| Dynamic load capacity C50 [N] | 4910 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Dynamic torsional moment load capacity Mt50 [Nm] | 49 |
| 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] | 39 |
| 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. |
| Pitch T guide rail [mm] | 60 |
| Dimension A (profiled rail systems) [mm] | 34 |
| Dimension A1 (profiled rail systems) [mm] | 17 |
| Dimension A2 (profiled rail systems) [mm] | 15 |
| Dimension A3 (profiled rail systems) [mm] | 9.5 |
| Dimension B (profiled rail systems) [mm] | 44.7 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 25.7 |
| Dimension E1 [mm] | 26 |
| Dimension E8 (profiled rail systems) [mm] | 24.55 |
| Dimension E9 (profiled rail systems) [mm] | 6.7 |
| Dimension H [mm] | 24 |
| Dimension H1 (profiled rail systems) [mm] | 19.9 |
| Dimension H2 with cover strip (profiled rail systems) [mm] | 16.3 |
| Dimension H2 without cover strip (profiled rail systems) [mm] | 16.2 |
| Dimension K1 (profiled rail systems) [mm] | 16.25 |
| Dimension K2 (profiled rail systems) [mm] | 17.85 |
| Dimension K3 (profiled rail systems) [mm] | 3.2 |
| Dimension K4 (profiled rail systems) [mm] | 3.2 |
| Dimension N3 (profiled rail systems) [mm] | 6 |
| Dimension N6 (profiled rail systems) [mm] | 10.3 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M4 |
| Dimension S5 (profiled rail system) [mm] | 4.5 |
| Dimension S9 | M2,5×3.5 mm |
| Dimension S9 thread diameter (profiled rail systems) | M2,5 |
| Dimension S9 lead [mm] | 3.5 |
| Dimension T1 min [mm] | 12 |
| Dimension V1 [mm] | 5 |
FAQ
1. What is the primary function of the Rexroth R166211420 linear bearing block?
The R166211420 facilitates precise linear motion in industrial applications, compensating for alignment errors and supporting high loads.
2. Can this linear bearing block be used with non-Rexroth guide rails?
Yes, it is compatible with all SNS ball guide rails, offering limitless interchangeability within its accuracy class.
3. What maintenance is required for the R166211420?
The block comes pre-lubricated with Dynalub 510 grease and features metal-threaded lube fittings for easy relubrication.
4. What are the temperature limitations of this linear guide?
It operates between -10°C and +80°C (14°F to 176°F), with short-term tolerance up to 100°C (212°F).
5. How does the self-aligning feature benefit my application?
The self-aligning design compensates for misalignments up to 10 arcminutes, reducing wear and ensuring reliable performance in less-than-ideal setups.
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