Rexroth R165121420 Ball Runner Block - Carbon Steel Linear Guide System KWD-025-FNS-C1-N-1
Nominal size:25
Format:FNS - flanged, normal, standard height
Ball chain:Without ball chain (standard)
Material (profiled rail systems):Carbon steel
Preload class:C1 - Low preload
Accuracy class:N - normal
Self-aligning for compensation of misalignments:Without self-alignment
Width of runner block:70 mm
Length of runner block:86.2 mm
Height of runner block:29.9 mm
Height of runner block with guide rail:36 mm
Lubrication:With initial lubrication and preservation
Original REXROTH Linear guideway Description
The ball runner block is highly precise and characterized by the following product features:Size 25
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 = 86.2 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Unpacked Weight: 0.669 kg
Key Features
- 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.
- 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 | 29.9 |
Size E3 (profiled rail systems) | 40 |
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) | 45 |
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 | 36 |
Static load rating C0 | 35900 |
Dynamic torsional moment load capacity Mt | 410 |
Size H2 with cover strip (profiled rail systems) | 24.25 |
Preload class | C1 - Low preload |
Size B1 (profiled rail systems) | 57.8 |
Size H (profiled rail system) | 36 |
Friction coefficient μ min. | 0.002 |
Accuracy class | N - normal |
Size K4 (profiled rail systems) | 5.5 |
Size B with tolerance (profiled rail systems) | 86,2 mm +0,5 |
Size K3 (profiled rail systems) | 5.5 |
Size A1 (profiled rail systems) | 35 |
Static torsional moment load capacity Mt0 | 510 |
Runner block or guide rail | Runner block |
Width of runner block | 70 |
Size E8 (profiled rail systems) | 38.3 |
Length of runner block | 86.2 |
Linear guide type | Ball rail system |
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