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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R162172320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-030-SNH-C2-H-1
- Size 30
- Format SNH: Width = slimline, length = normal, height = high
- Runner block body made of unalloyed steel CS
- Preload class C2: Medium 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 = 97.7 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 moment stiffness up to 830Nm (Mt0)
- Pre-ground raceways with mirror finish (Ra 0.05μm) for smooth operation
- Recirculating ball bearing system with optimized Gothic arch groove design
- Black oxide coating enhances corrosion resistance in harsh environments
Technical Specifications
| Parameter | Specification | Engineering Significance | Standard Compliance |
|---|---|---|---|
| Dynamic Load C100 | 36,500N (8,205 lbf) | Sustained force at 100km travel | DIN ISO 14728-1 |
| Friction Coefficient | 0.002-0.003 | Reduces stick-slip phenomenon | JIS B 1192 |
| Moment Stiffness | 830Nm (612 lb-ft) | Resists deflection under torque | ANSI/B93.55M |
Testing conditions: 23°C ambient, 50% RH | Metric/imperior conversions shown in parentheses
| Product attributes | |
|---|---|
| Version | Ball rail system |
| Nominal size [mm] | 30 |
| Format | SNH – slimline, normal, high |
| Model | High-precision ball runner block |
| Material | Carbon steel |
| Preload class | C2 – Medium 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] | 60 |
| Length of runner block [mm] | 97.7 |
| Height of runner block [mm] | 38.35 |
| Height runner block with guide rail [mm] | 45 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C100 [N] | 36500 |
| 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] | 0.95 |
| Dynamic load capacity C50 [N] | 46000 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 48100 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 790 |
| 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] | 630 |
| 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] | 830 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 550 |
| 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] | 440 |
| 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] | 580 |
| Pitch T guide rail [mm] | 80 |
| Dimension A (profiled rail systems) [mm] | 60 |
| Dimension A1 (profiled rail systems) [mm] | 30 |
| Dimension A2 (profiled rail systems) [mm] | 28 |
| Dimension A3 (profiled rail systems) [mm] | 16 |
| Dimension B (profiled rail systems) [mm] | 97.7 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 67.4 |
| Dimension E1 [mm] | 40 |
| Dimension E2 (profiled rail systems) [mm] | 40 |
| Dimension E8 (profiled rail systems) [mm] | 48.4 |
| Dimension E9 (profiled rail systems) [mm] | 17.6 |
| Dimension H [mm] | 45 |
| Dimension H1 (profiled rail systems) [mm] | 38.35 |
| Dimension H2 with cover strip (profiled rail systems) [mm] | 28.55 |
| Dimension H2 without cover strip (profiled rail systems) [mm] | 28.35 |
| Dimension K1 (profiled rail systems) [mm] | 20 |
| Dimension K2 (profiled rail systems) [mm] | 21.7 |
| Dimension K3 (profiled rail systems) [mm] | 9.05 |
| Dimension K4 (profiled rail systems) [mm] | 9.05 |
| Dimension N3 (profiled rail systems) [mm] | 12 |
| Dimension N6 (profiled rail systems) [mm] | 17 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M8 |
| Dimension S5 (profiled rail system) [mm] | 9 |
| Dimension S9 | M3x5 mm |
| Dimension S9 thread diameter (profiled rail systems) | M3 |
| Dimension S9 lead [mm] | 5 |
| Dimension T1 min [mm] | 16 |
| Dimension V1 [mm] | 7 |
Installation Checklist
- Verify foundation flatness ≤0.01mm/m (0.0005in/ft)
- Align reference edge within ±0.5mm (±0.02″) tolerance
- Apply Dynalub 510 grease at 40mm (1.57″) intervals
- Torque M8 fasteners to 25Nm (18.4 lb-ft)
Industry Certifications
1. ISO 14728
2. CE
3. RoHS
4. TÜV
2. CE
3. RoHS
4. TÜV
FAQ
- Q: What’s the relubrication interval for this linear bearing carriage?
- A: Under normal loads, relubricate every 2,000 operational hours using NLGI 2 grease
- Q: Can I use this with non-Rexroth linear guideways?
- A: Yes, it’s compatible with SNS/SNO rail systems meeting JIS B grade specifications
- Q: What’s the corrosion resistance rating?
- A: Electroless nickel plating provides 500hr salt spray resistance per ASTM B117
Why we are more
affordablebetterflexible
affordablebetterflexible
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