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Address: Suzhou City, Jiangsu Province, China, 215000
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Tel: 0086-512-68235075
R165131420 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-035-FNS-C1-N-1
- Size 35
- Format FNS: Width = flange, length = normal, height = standard
- 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 = 110.5 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Key Product Features
- High Precision: Patented entry zone increases travel accuracy by up to six times, ideal for precision motion control.
- Robust Design: Carbon steel construction with integrated all-round sealing ensures durability and resistance to contaminants.
- Low Friction: Friction coefficient of 0.002–0.003 minimizes oscillations, enhancing efficiency under external loads.
- Versatile Mounting: Attachments can be mounted from above and below, with metal-threaded lube fittings on all sides for easy maintenance.
- High Rigidity: Two additional center mounting screw holes improve rigidity under lift-off and side loading conditions.
- Long-Term Lubrication: Factory pre-lubricated with Dynalub 510, supporting years of maintenance-free operation.
Rexroth R165131420 linear bearing block, designed with a nominal size of 35 mm (1.38 inches), this high-precision ball runner block (KWD-035-FNS-C1-N-1) features a flange, normal length, and standard height format (FNS), Crafted from robust carbon steel, it ensures durability and consistent performance under high loads. With a dynamic load capacity of 51,800 N and a static load capacity of 80,900 N.
Technical Specifications
The Rexroth R165131420 linear bearing block is engineered for high-performance linear motion systems. Below is a detailed breakdown of its technical parameters, presented in a structured format for easy reference.
| Parameter | Value | Engineering Explanation |
|---|---|---|
| Nominal Size | 35 mm (1.38 inches) | Defines the standard size for compatibility with corresponding guide rails. |
| Format | FNS – Flange, Normal, Standard Height | Flanged design with standard dimensions for versatile mounting options. |
| Material | Carbon Steel | High-strength material ensures durability and resistance to wear. |
| Preload Class | C1 – Low Preload | Reduces internal forces, ideal for applications requiring smooth motion. |
| Accuracy Class | N – Normal | Standard accuracy suitable for most industrial applications. |
| Seal | SS – Standard Seal | Protects against dust and contaminants, extending service life. |
| Width of Runner Block | 100 mm (3.94 inches) | Provides a stable base for load distribution. |
| Length of Runner Block | 110.5 mm (4.35 inches) | Ensures sufficient contact area for smooth linear motion. |
| Height of Runner Block | 40.4 mm (1.59 inches) | Compact height for space-efficient installations. |
| Height with Guide Rail | 48 mm (1.89 inches) | Total height when mounted on a compatible rail. |
| Dynamic Load Capacity C100 | 51,800 N | Maximum load during motion for 100,000 m travel (per DIN ISO 14728-1). |
| Dynamic Load Capacity C50 | 65,300 N | Load capacity for 50,000 m travel, 26% higher than C100. |
| Static Load Capacity C0 | 80,900 N | Maximum stationary load the block can withstand. |
| Dynamic Torsional Moment Mt100 | 1,110 Nm | Resistance to twisting forces during 100,000 m travel. |
| Static Torsional Moment Mt0 | 1,740 Nm | Stationary resistance to twisting forces. |
| Dynamic Longitudinal Moment ML100 | 720 Nm | Resistance to longitudinal forces during 100,000 m travel. |
| Static Longitudinal Moment ML0 | 1,130 Nm | Stationary resistance to longitudinal forces. |
| Maximum Acceleration amax | 500 m/s² (1,640 ft/s²) | Maximum acceleration under standard conditions; 50 m/s² if combined forces exceed 2.8 times preload force. |
| Maximum Linear Speed vmax | 5 m/s (16.4 ft/s) | Top speed for safe and reliable operation. |
| Friction Coefficient μ | 0.002–0.003 | Low friction ensures energy efficiency and smooth motion. |
| Weight | 1.7 kg (3.75 lbs) | Lightweight for its size, aiding ease of installation. |
| Permissible Ambient Temperature | -10 °C to +80 °C (14 °F to 176 °F); 100 °C (212 °F) for short durations | Wide temperature range for diverse operating environments. |
| Pitch T Guide Rail | 80 mm (3.15 inches) | Standard spacing for rail mounting holes. |
Technical Attributes
| Version | Ball rail system |
| Nominal size [mm] | 35 |
| Format | FNS – flange, 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 | Without ball chain (standard) |
| Self-aligning for compensation of misalignments | Without self-alignment |
| Width of runner block [mm] | 100 |
| Length of runner block [mm] | 110.5 |
| Height of runner block [mm] | 40.4 |
| Height runner block with guide rail [mm] | 48 |
| 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] | 1.7 |
| 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] | 100 |
| Dimension A1 (profiled rail systems) [mm] | 50 |
| Dimension A2 (profiled rail systems) [mm] | 34 |
| Dimension A3 (profiled rail systems) [mm] | 33 |
| Dimension B (profiled rail systems) [mm] | 110.5 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 77 |
| Dimension E1 [mm] | 82 |
| Dimension E2 (profiled rail systems) [mm] | 62 |
| Dimension E3 (profiled rail systems) [mm] | 52 |
| Dimension E8 (profiled rail systems) [mm] | 58 |
| Dimension E9 (profiled rail systems) [mm] | 17.35 |
| Dimension H [mm] | 48 |
| Dimension H1 (profiled rail systems) [mm] | 40.4 |
| 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] | 14.5 |
| Dimension K2 (profiled rail systems) [mm] | 16 |
| Dimension K3 (profiled rail systems) [mm] | 6.9 |
| Dimension K4 (profiled rail systems) [mm] | 6.9 |
| Dimension N1 (profiled rail systems) [mm] | 12 |
| Dimension N2 (profiled rail systems) [mm] | 10.15 |
| Dimension N6 (profiled rail systems) [mm] | 20.5 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S1 (profiled rail systems) [mm] | 8.5 |
| Dimension S2 (profiled rail systems) | M10 |
| 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 |
FAQ
1. What is the preload class of the Rexroth R165131420 linear bearing block?
The R165131420 features a C1 low preload class, which minimizes internal forces for smoother motion in applications requiring moderate rigidity.
2. Can the R165131420 be used with different guide rails?
Yes, it is compatible with all SNS/SNO ball guide rails from Bosch Rexroth, offering flexibility for various linear motion setups.
3. What is the maximum operating temperature for this linear bearing block?
The permissible ambient temperature ranges from -10 °C to +80 °C (14 °F to 176 °F), with short-term operation up to 100 °C (212 °F).
4. How does the patented entry zone benefit my application?
The patented entry zone increases travel accuracy by up to six times, ensuring precise positioning in applications like CNC machining and automation.
5. Is the R165131420 pre-lubricated?
Yes, it comes factory pre-lubricated with Dynalub 510 grease, supporting long-term lubrication for reduced maintenance.
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