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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R162111420 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-015-SNH-C1-N-1
- Size 15
- Format SNH: Width = slimline, length = normal, height = high
- 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 = 58.2 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Technical Specifications
| Parameter | Specification | Engineering Significance | Standard Compliance |
|---|---|---|---|
| Dynamic Load Capacity C100 | 9,860N (2,217 lbf) | Sustained operation at 5m/s (16.4ft/s) linear speed | DIN ISO 14728-1 |
| Moment Stiffness | 120Nm (88.5 lb-ft) | Resists deflection in multi-axis loading | JIS B 1192 |
| Parallelism Tolerance | ±0.5μm/m (±0.00002in/ft) | Ensures straight-line accuracy | ANSI/B93.55M |
Test Conditions: 23°C ±2°C (73°F ±3.6°F), 50% RH
| Product attributes | |
|---|---|
| Version | Ball rail system |
| Nominal size [mm] | 15 |
| Format | SNH – slimline, normal, high |
| 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] | 34 |
| Length of runner block [mm] | 58.2 |
| Height of runner block [mm] | 23.9 |
| Height runner block with guide rail [mm] | 28 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C100 [N] | 9860 |
| 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] | 0.22 |
| Dynamic load capacity C50 [N] | 12400 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 12700 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 120 |
| 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] | 95 |
| 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] | 120 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 86 |
| 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] | 68 |
| 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] | 87 |
| 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] | 58.2 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 39.2 |
| Dimension E1 [mm] | 26 |
| Dimension E2 (profiled rail systems) [mm] | 26 |
| Dimension E8 (profiled rail systems) [mm] | 24.55 |
| Dimension E9 (profiled rail systems) [mm] | 10.7 |
| Dimension H [mm] | 28 |
| Dimension H1 (profiled rail systems) [mm] | 23.9 |
| 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] | 10 |
| Dimension K2 (profiled rail systems) [mm] | 11.6 |
| Dimension K3 (profiled rail systems) [mm] | 7.2 |
| Dimension K4 (profiled rail systems) [mm] | 7.2 |
| 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 |
Precision Engineering Specifications
- 4-Way Load Distribution: Equal stress distribution across Gothic arch raceways
- Recirculation Efficiency: 92% ball retention rate at 5m/s
- Surface Hardness: 60-62 HRC case-hardened steel
Installation Checklist
- Verify rail foundation flatness ≤0.01mm/m (0.00012in/ft)
- Apply Dynalub 510 grease (NLGI 2 grade)
- Torque M4 fasteners to 3.5Nm (31in-lb)
- Confirm running parallelism ≤0.02mm (0.0008in)
Industry Certifications
- ISO 14728:2018 Class C3
- CE 2006/42/EC Machinery Directive
- RoHS 3 (2015/863/EU)
FAQ
- Q: How does preload class affect performance?
- A: C1 preload minimizes 15μm deflection while maintaining smooth operation
- Q: Compatible with THK rails?
- A: Yes – uses standard 60mm (2.36″) pitch dimension
- Q: Relubrication interval?
- A: 18,000km (11,185mi) travel or 24 months
Why we are more
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