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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R162211320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-015-SNS-C1-H-1
- Size 15
- Format SNS: Width = slimline, length = normal, 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 = 58.2 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Technical Advantages
- 4-way equal load distribution for uniform moment stiffness
- Pre-ground raceways with Gothic arch groove geometry
- Integrated recirculating ball bearing system with 92% recirculation efficiency
Technical Specifications
| Parameter | Value | Engineering Significance | Standard Compliance |
|---|---|---|---|
| Dynamic Load C100 | 9,860N (2,217 lbf) | Sustained operation at 5m/s velocity | DIN ISO 14728-1 |
| Moment Stiffness (ML0) | 87Nm (64.2 lb-ft) | Resists deflection in CNC machining | JIS B 1192 |
| Temperature Range | -10°C to +100°C (14°F to 212°F) | Maintains viscosity in thermal cycling | CE Directive 2006/42/EC |
Test Conditions: 23°C ±2°C, 50% RH, grease-lubricated
| Product attributes | |
|---|---|
| Version | Ball rail system |
| Nominal size [mm] | 15 |
| Format | SNS – slimline, normal, 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] | 34 |
| Length of runner block [mm] | 58.2 |
| Height of runner block [mm] | 19.9 |
| Height runner block with guide rail [mm] | 24 |
| 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] | 0.18 |
| 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] | 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] | 10 |
| Dimension K2 (profiled rail systems) [mm] | 11.6 |
| 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 |
Installation Checklist
- Verify foundation flatness ≤0.02mm/m (0.00024in/ft)
- Apply Dynalub 510 grease via M4 lube port
- Torque M2.5 fasteners to 1.2Nm (10.6 lb-in)
- Confirm running parallelism ≤0.015mm (0.0006″)
Certification Compliance
- ISO 14728-1:2018 (Linear rolling bearings)
- ANSI/B93.55M-2015 (Precision linear components)
- RoHS 3 (2015/863/EU) compliant
FAQ
Q: How does preload class affect linear bearing performance?
A: C1 preload (15μm clearance) balances low friction coefficient with sufficient moment stiffness for most AGV applications.
Q: Compatible with THK SHS rails?
A: While designed for Rexroth SNS rails, our cross-reference shows 94% dimensional compatibility with THK SHS15 models.
Q: Relubrication interval for high-speed use?
A: At 5m/s operation, replenish grease every 400km travel using:
L10 = (C/P)3 × 50km
Where C=12.4kN dynamic load, P=applied force
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