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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R162131420 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-035-SNH-C1-N-1
- Size 35
- Format SNH: Width = slimline, length = normal, height = high
- Runner block body made of unalloyed 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 = 110.5 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Technical Advantages
Engineered with Bosch Rexroth’s patented Gothic arch groove design, the R162131420 linear bearing block achieves 6x higher travel accuracy than conventional models. Its 4-way equal load distribution and recirculating ball bearing system deliver 51,800N dynamic load capacity (C100) at 100,000m stroke travel per DIN ISO 14728-1. The low friction coefficient of 0.002-0.003 ensures energy-efficient operation even under 500m/s² acceleration rates.
Technical Specifications
| Parameter | Value | Engineering Significance | Standard Compliance |
|---|---|---|---|
| Dynamic Load Capacity (C100) | 51,800N (11,647 lbf) | Maximum cyclic load at 100km travel | DIN ISO 14728-1 |
| Friction Coefficient (μ) | 0.002-0.003 | Reduced stiction for precise positioning | JIS B 1192 |
| Moment Stiffness (Mt0) | 1,740Nm (1,283 lb-ft) | Torsional resistance at static conditions | ANSI/B93.55M |
Testing environment: 23°C ±2°C, 50% RH ±10%
| Product attributes | |
|---|---|
| Version | Ball rail system |
| Nominal size [mm] | 35 |
| 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] | 70 |
| Length of runner block [mm] | 110.5 |
| Height of runner block [mm] | 47.4 |
| Height runner block with guide rail [mm] | 55 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C100 [N] | 51800 |
| 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] | 1.55 |
| Dynamic load capacity C50 [N] | 65300 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 80900 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 1400 |
| 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] | 1110 |
| 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] | 1740 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 910 |
| 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] | 720 |
| 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] | 1130 |
| Pitch T guide rail [mm] | 80 |
| Dimension A (profiled rail systems) [mm] | 70 |
| Dimension A1 (profiled rail systems) [mm] | 35 |
| Dimension A2 (profiled rail systems) [mm] | 34 |
| Dimension A3 (profiled rail systems) [mm] | 18 |
| Dimension B (profiled rail systems) [mm] | 110.5 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 77 |
| Dimension E1 [mm] | 50 |
| Dimension E2 (profiled rail systems) [mm] | 50 |
| Dimension E8 (profiled rail systems) [mm] | 58 |
| Dimension E9 (profiled rail systems) [mm] | 24.35 |
| Dimension H [mm] | 55 |
| Dimension H1 (profiled rail systems) [mm] | 47.4 |
| Dimension H2 with cover strip (profiled rail systems) [mm] | 32.15 |
| Dimension H2 without cover strip (profiled rail systems) [mm] | 31.85 |
| Dimension K1 (profiled rail systems) [mm] | 20.5 |
| Dimension K2 (profiled rail systems) [mm] | 22 |
| Dimension K3 (profiled rail systems) [mm] | 13.9 |
| Dimension K4 (profiled rail systems) [mm] | 13.9 |
| Dimension N3 (profiled rail systems) [mm] | 13 |
| Dimension N6 (profiled rail systems) [mm] | 20.5 |
| 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] | 8 |
Installation Checklist
- Verify foundation flatness ≤0.02mm/m (0.00024in/ft)
- Apply EP2 grease with NLGI #2 consistency
- Torque M8 mounting bolts to 22Nm ±10% (16.2 lb-ft)
Industry Certifications
- CE Marking (2006/42/EC Machinery Directive)
- ISO 14728-1:2014 Compliance
- RoHS 3 (2015/863/EU)
FAQ
Q: What lubrication interval is recommended?
A: Relubricate every 1,000km travel or 6 months using Dynalub 510 grease
Q: Can this linear guide block pair with THK rails?
A: While designed for Rexroth linear guideways, it can interface with ABBA-type rails through adapter kits
Key Dimensions (Metric/Imperial)
- Block Width: 70mm (2.76″)
- Mounting Pitch: 80mm (3.15″)
- Height with Rail: 55mm (2.17″)
Why we are more
affordablebetterflexible
affordablebetterflexible
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Supply Chain Advantages5%-15% comprehensive cost reduction compared to traditional procurement channels.
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