Available on request

BALL RUNNER BLOCK CARBON STEEL KWC-020-SKN-C0-H-2

MPN: R166489311 · Brand: Bosch Rexroth
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12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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Quick facts

AvailabilityConfirmed on request
CategoryHigh-precision ball runner block BSHP
Lifecycleactive
Warranty12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can R166489311 be shipped?

R166489311 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up R166489311 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for R166489311 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for R166489311, subject to availability and destination.

The ball runner block is highly precise and characterized by the following product features:<br>Size 20<br>Format SKN: Width = slimline, length = short, height = low<br>Runner block body made of unalloyed steel CS<br>Preload class C0: Preload-free<br>Accuracy class H: High<br>Without ball chain<br>Preserved<br>Without initial lubrication<br>Without attachment element, left (front reference edge)<br>Without attachment element, right (front reference edge)<br>45° angular lube nipples loosely attached.<br>Runner block body in standard version<br>Overall length of the runner block = 55.0 mm<br>Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy. Area of application: For restricted space in the upward, longitudinal and transverse direction Maximum precision Patented entry zone increases the travel accuracy up to a factor of six Significantly reduced frictional oscillations and low friction force level, particularly under external load Long-term lubrication is possible over several years Lube fittings with metal threads on all sides End-face fastening thread for all attachments Can be used on all SNS/SNO ball guide rails Integrated all-round sealing Preload classes: C0 (without preload, clearance) and C1 (moderate preload) Optional integrated, inductive and wear-free measuring system Optimized entry-zone geometry and high number of balls minimize variation in elastic deflection

Specifications

Specifications

VersionBall rail system
Nominal size [mm]20
FormatSKN - slimline, short, low
ModelHigh-precision ball runner block
Material (profiled rail systems)Carbon steel
Preload classC0 - Without preload (clearance)
Accuracy classH - Highly accurate
SealLS - Low-friction seal
Ball chainWithout ball chain (standard)
Self-aligning for compensation of misalignmentsWithout self-alignment
Width of runner block [mm]42.0
Length of runner block [mm]55.0
Height of runner block [mm]23.0
Height runner block with guide rail [mm]28.0
LubricationPreserved
Maximum acceleration rate amax [m/s²]250.0
Note: Max. acceleration amaxIf F<sub>comb</sub>◡> 2.8 • F<sub>pr</sub> : a<sub>max</sub> = 50 m/s<sup>2</sup>
Maximum permissible linear speed vmax [m/s]3.0
Note: sealNo preferred variants/combinations (partially longer delivery times)
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 μ0.002 ... 0.003
Note: friction coefficient μWithout friction of seal
Weight [kg]0.2
Dynamic load capacity C50 [N]12100.0
Note: dynamic load capacity C50Dynamic load capacities and load moments are based on a travel of 50,000 m according to DIN ISO 14728-1.
Dynamic load capacity C100 [N]9600.0
Note: dynamic load capacity C100Dynamic load capacities and load moments are based on a travel of 100,000 m according to DIN ISO 14728-1.
Static load capacity C0 [N]13600.0
Dynamic torsional moment load capacity Mt50 [Nm]150.0
Note: Dynamic torsional moment load capacity Mt50Dynamic load capacities and load moments are based on a travel of 50,000 m according to DIN ISO 14728-1.
Dynamic torsional moment load capacity Mt100 [Nm]120.0
Note: Dynamic torsional moment load capacity Mt100Dynamic load capacities and load moments are based on a travel of 100,000 m according to DIN ISO 14728-1.
Static torsional moment load capacity Mt0 [Nm]170
Dynamic longitudinal moment load capacity ML50 [Nm]50.0
Note: Dynamic longitudinal moment load capacity ML50Dynamic load capacities and load moments are based on a travel of 50,000 m according to DIN ISO 14728-1.
Dynamic longitudinal moment load capacity ML100 [Nm]40.0
Note: Dynamic longitudinal moment load capacity ML100Dynamic load capacities and load moments are based on a travel of 100,000 m according to DIN ISO 14728-1.
Static longitudinal moment load capacity ML0 [Nm]58
Pitch T guide rail [mm]60
Dimension A (profiled rail systems) [mm]42
Dimension A1 (profiled rail systems) [mm]21
Dimension A2 (profiled rail systems) [mm]20
Dimension A3 (profiled rail systems) [mm]11
Dimension B (profiled rail systems) [mm]55
Dimension B tolerance (profiled rail systems) [mm]+0.5
Dimension B1 [mm]31.9
Dimension E1 [mm]32
Dimension E8 (profiled rail systems) [mm]30.5
Dimension E9 (profiled rail systems) [mm]5.6
Dimension H [mm]28.0
Dimension H1 (profiled rail systems) [mm]23
Dimension H2 with cover strip (profiled rail systems) [mm]20.75
Dimension H2 without cover strip (profiled rail systems) [mm]20.55
Dimension K1 (profiled rail systems) [mm]20.1
Dimension K3 (profiled rail systems) [mm]3.6
Dimension N3 (profiled rail systems) [mm]6.3
Dimension N6 (profiled rail systems) [mm]13.2
Dimension N6 tolerance (profiled rail systems) [mm]±0.5
Dimension S2 (profiled rail systems)M5
Dimension S5 (profiled rail system) [mm]6
Dimension S9M3x5 mm
Dimension S9 thread diameter (profiled rail systems)M3
Dimension S9 lead [mm]5
Dimension T1 min [mm]13
Dimension V1 [mm]6
12-month warrantyon all new stock
3-month warrantyon used & refurbished parts
30-day returnsno restocking fee on unused parts
Global shippingFast, tracked delivery worldwide

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