Ball Runner Block Carbon Steel Cs Linear Guide Kwd-020-Fls-C1-H-2
Model: B.RUNNER BLOCK CS KWD-020-FNS-C2-P-1
Original REXROTH Linear guideway Description
BALL RUNNER BLOCK CARBON STEEL KWD-020-FNS-C2-P-1
Ball runner block, FNS, size 20, steel CS, accuracy precision, average preload, without ball chain
The ball runner block is highly precise and characterized by the following product features:
- Size 20
- Format FNS: Width = flange, length = normal, height = standard
- Runner block body made of unalloyed steel CS
- Preload class C2: Medium preload
- Accuracy class P: Precision
- 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 = 75.0 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
- Unpacked Weight: 0.444 kg
Key Features
The BALL RUNNER BLOCK CARBON STEEL KWD-020-FNS-C2-P-1 is a high-quality, durable product designed for smooth and precise linear motion. Made from carbon steel, it offers exceptional strength and reliability, perfect for industrial applications.
● Area of application: For high rigidity requirements.
● Excellent dynamic characteristics: Excellent dynamic characteristics.
● Significantly reduced frictional oscillations and low friction force level, particularly under external load.
● Maximum precision.
ž Patented entry zone increases the travel accuracy up to a factor of six.
● Attachments on the ball runner block can be mounted from above and below.
● Lube fittings with metal threads on all sides.
● End-face fastening thread for all attachments.
● Integrated all-round sealing.
● High torque load capacity.
● Different preload classes.
● High rigidity in all load directions – permits applications with just one runner block per rail.
● Improved rigidity under lift-off and side loading conditions due to two additional mounting screw holes at the center of the ball runner block.
● Maximum system rigidity due to preloaded O-arrangement.
● Optional integrated, inductive and wear-free measuring system.
● Ball runner block pre-lubricated at the factory.
● Can be used on all SNS/SNO ball guide rails.
● Long-term lubrication is possible over several years.
● The same high load ratings in all four main directions of loading.
Attributes
| Height of runner block | 25.35 |
| Size E3 (profiled rail systems) | 35 |
| Footnote permissible ambient temperature (min ... max) | 100 °C admissible for short time. For operation at negative temperatures, please consult us. |
| Footnote dynamic load capacity C | Determination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26. |
| Size E2 (profiled rail systems) | 40 |
| Footnote friction coefficient μ | Without friction of seal |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Format | FNS - flanged, normal, standard height |
| Self-aligning for compensation of misalignments | Without self-alignment |
| Ball chain | Without ball chain (standard) |
| Friction coefficient μ | 0,002 ... 0,003 |
| Size B tolerance (profiled rail systems) | 0.5 |
| Pitch T guide rail | 60 |
| Height of runner block with guide rail | 30 |
| Static load rating C0 | 29800 |
| Dynamic torsional moment load capacity Mt | 300 |
| Size H2 with cover strip (profiled rail systems) | 20.55 |
| Preload class | C2 – Average preload |
| Size B1 (profiled rail systems) | 49.6 |
| Size H (profiled rail system) | 30 |
| Friction coefficient μ min. | 0.002 |
| Accuracy class | P - Precise |
| Size K4 (profiled rail systems) | 3.35 |
| Size B with tolerance (profiled rail systems) | 75 mm +0,5 |
| Size K3 (profiled rail systems) | 3.35 |
| Size A1 (profiled rail systems) | 31.5 |
| Static torsional moment load capacity Mt0 | 380 |
| Runner block or guide rail | Runner block |
| Width of runner block | 63 |
| Size E8 (profiled rail systems) | 32.5 |
| Length of runner block | 75 |
| Linear guide type | Ball rail system |
| Dynamic load capacity C | 23400 |
| Static longitudinal moment load capacity ML0 | 260 |
| Size E9 (profiled rail systems) | 7.3 |
| Size N1 (profiled rail systems) | 7.7 |
| Size E1 (profiled rail systems) | 53 |
| Material (profiled rail systems) | Carbon steel |
| Size N6 with tolerance (profiled rail systems) | 13,2 mm ±0,5 |
| Size S5 (profiled rail system) | 6 |
| Max. acceleration amax | 500 |
| Size A (profiled rail systems) | 63 |
| Size N6 tolerance (profiled rail systems) | ±0.5 |
| Size A3 (profiled rail systems) | 21.5 |
| Preload force | 1500 |
| Size A2 (profiled rail systems) | 20 |
| Maximum permissible linear speed vmax | 5 |
| Lubrication | With initial lubrication and preservation |
| Size S1 (profiled rail systems) | 5.3 |
| Size N2 (profiled rail systems) | 5.2 |
| Size N6 (profiled rail systems) | 13.2 |
| Friction coefficient μ max. | 0.003 |
| Size B (profiled rail systems) | 75 |
| Size H2 with cover strip (profiled rail systems) | 20.75 |
| Seal | SS – Standard seal |
| Size K2 (profiled rail systems) | 11.8 |
| Size V1 | 6 |
| Productgroup ID | 17 |
| Size K1 (profiled rail systems) | 11.8 |
| Dynamic longitudinal moment load capacity ML footnote | Determination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26. |
| Permissible ambient temperature (max) | 80 |
| Size S9 thread diameter x lead with tolerance (profiled rail systems) | M3x5 |
| Dynamic longitudinal moment load capacity ML | 200 |
| Size S2 (profiled rail systems) | M6 |
| Permissible ambient temperature (min) | -10 |
| Note: Max. acceleration amax | If Fcomb◡> 2.8 • Fpr : amax = 50 m/s2 |
| Size T1 min (profiled rail systems) | 13 |
| Dynamic torsional moment load capacity Mt footnote | Determination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26. |
| Size S9 thread diameter x lead with (profiled rail systems) | M3x5 |
| Internal product information | For LS – low-friction seal with external longitudinal seal |
| Weight | 0.444 |
| Nominal size | 20 |
| Size H1 (profiled rail systems) | 25.35 |
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