The ball runner block is highly precise and characterized by the following product features:
Size 25
Format FLS: Width = flange, length = long, 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 = 107.9 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Area of application: For the most demanding rigidity requirements
Significantly reduced frictional oscillations and low friction force level, particularly under external load
Excellent dynamic characteristics
Maximum precision
Patented entry zone increases the travel accuracy up to a factor of six
Long-term lubrication is possible over several years
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
Attachments on the ball runner block can be mounted from above and below
Can be used on all SNS/SNO ball guide rails
The same high load ratings in all four main directions of loading
Ball runner block pre-lubricated at the factory

Product attributes
Version	Ball rail system
Nominal size [mm]	25
Format	FLS - flange, long, standard height
Type of construction	High-precision ball runner block
Material (profiled rail systems)	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]	107.9
Height of runner block [mm]	29.9
Height runner block with guide rail [mm]	36
Lubrication	With initial lubrication and preservation
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.
Dynamic load capacity C100 [N]	37300
Note: Dynamic longitudinal moment load capacity ML100	Dynamic load capacity and load moments based on a travel life of 100,000 m.
Max. acceleration 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
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.
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	-10 °C ... +80 °C
Footnote 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
Footnote friction coefficient μ	Without friction of seal
Weight [kg]	0.9
Dynamic load capacity C50 [N]	47000
Note: Dynamic longitudinal moment load capacity ML100	Dynamic load capacity and load moments based on a travel of 50,000 m.
Static load capacity C0 [N]	52500
Dynamic torsional moment load capacity Mt50 [Nm]	670
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]	530
Note: Dynamic torsional moment load capacity Mt100	Dynamic load capacity and load moments based on a travel life of 100,000 m.
Static torsional moment load capacity Mt0 [Nm]	750
Dynamic longitudinal moment load capacity ML50 [Nm]	670
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]	530
Note: Dynamic longitudinal moment load capacity ML100	Dynamic load capacity and load moments based on a travel life of 100,000 m.
Static longitudinal moment load capacity ML0 [Nm]	740
Pitch T guide rail [mm]	60
Dimension A (profiled rail systems) [mm]	70
Dimension A1 (profiled rail systems) [mm]	35
Dimension A2 (profiled rail systems) [mm]	23
Dimension A3 (profiled rail systems) [mm]	23.5
Dimension B (profiled rail systems) [mm]	107.9
Dimension B tolerance (profiled rail systems) [mm]	+0.5
Dimension B1 [mm]	79.5
Dimension E1 [mm]	57
Dimension E2 (profiled rail systems) [mm]	45
Dimension E3 (profiled rail systems) [mm]	40
Dimension E8 (profiled rail systems) [mm]	38.3
Dimension E9 (profiled rail systems) [mm]	11.5
Dimension H [mm]	36
Dimension H1 (profiled rail systems) [mm]	29.9
Dimension H2 with cover strip (profiled rail systems) [mm]	24.45
Dimension H2 without cover strip (profiled rail systems) [mm]	24.25
Dimension K1 (profiled rail systems) [mm]	23.3
Dimension K2 (profiled rail systems) [mm]	24.45
Dimension K3 (profiled rail systems) [mm]	5.5
Dimension K4 (profiled rail systems) [mm]	5.5
Dimension N1 (profiled rail systems) [mm]	9.3
Dimension N2 (profiled rail systems) [mm]	7
Dimension N6 (profiled rail systems) [mm]	15.2
Dimension N6 tolerance (profiled rail systems) [mm]	±0.5
Dimension S1 (profiled rail systems) [mm]	6.7
Dimension S2 (profiled rail systems)	M8
Dimension S5 (profiled rail system) [mm]	7
Dimension S9	M3x5 mm
Dimension S9 thread diameter (profiled rail systems)	M3
Dimension S9 lead [mm]	5
Dimension T1 min (profiled rail systems) [mm]	13
Dimension V1 [mm]	7.5