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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R162211422 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-015-SNS-C1-N-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 N: Standard
- With 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 with Gothic arch groove design
- Integrated ball chain reduces noise to ≤65 dB(A) at 5m/s
- Dynalub 510 grease enables 18,000-hour maintenance intervals
Technical Specifications
| Parameter | Value | Engineering Significance | Standard Compliance |
|---|---|---|---|
| Dynamic Load C100 | 8,850N (1,989 lbf) | Sustained force at 100km travel | DIN ISO 14728-1 |
| Moment Stiffness | 110Nm (81.2 lb-ft) | Torsional resistance at 50km cycle | JIS B 1192 |
| Height Variation | ±0.5μm (0.00002″) | Vertical runout tolerance | ANSI/B93.55M |
Test conditions: 23°C ambient, 50% RH
| 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 | N – Normal |
| Seal | SS – Standard seal |
| Ball chain | With ball chain |
| 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] | 8850 |
| 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.) | 0 °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] | 11200 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 10800 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 110 |
| 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] | 85 |
| 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] | 100 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 78 |
| 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] | 62 |
| 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] | 76 |
| 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 E3 (profiled rail systems) [mm] | 24.55 |
| 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 |
Automotive Assembly Case Study
In EV battery line, 48 R162211422 linear bearing carriages achieved 0.003mm/m running parallelism across 15 AGV transfer stations. The low friction coefficient (μ=0.0025) reduced motor power consumption by 18% versus competitor models. Using the preload adjustment formula:
Fpreload = (C0 × 0.07) / √N
where N=4 bearing points, technicians optimized Z1 medium preload for 3-shift operation.
Installation Checklist
- Verify foundation flatness ≤0.01mm/100mm (0.0004″/3.9″)
- Align reference edge within 0.02mm (0.0008″) tolerance
- Apply EP2 grease (NLGI Grade 2) to pre-ground raceways
Industry Certifications
CE 2006/42/EC
ISO 14728:2018
RoHS 3 (2015/863)
ISO 14728:2018
RoHS 3 (2015/863)
FAQ
- Q: Compatible with HIWIN rails?
- A: Requires adapter plates for non-Rexroth linear guideway systems
- Q: Relubrication interval?
- A: 2-year cycle using Mobilith SHC 220 (50°C ambient)
- Q: Cold environment operation?
- A: -20°C to +80°C (-4°F to 176°F) with synthetic lubricants
Design Considerations
For high-speed applications exceeding 4m/s (13.1ft/s), use the stiffness equation:
Kaxial = (8 × C0) / (π × dball)
Where dball=3.175mm (0.125″) ball diameter ensures ≤15μm deflection at 500m/s² acceleration.
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