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Bosch Rexroth R201221306
BALL RUNNER BLOCK RESIST NRII KWD-025-SLS-C1-H-0
- MPN
- R201221306
Price and lead time confirmed within 1 business day
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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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What is the Bosch Rexroth R201221306?
The ball runner block made of Resist NRII is corrosion-resistant and highly precise. Additionally, it is characterized by the following product features:
Size 25
Format SLS: Width = slimline, length = long, height = standard
Runner block body and all steel components made of corrosion-resistant steel as per DIN 10088
Preload class C1: Low preload
Accuracy class H: High
With ball chain
Without preservation
Without initial lubrication
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 restricted space in the transverse direction
All metal parts are made of corrosion resistant steel
Maximum precision
Significantly reduced frictional oscillations and low friction force level, particularly under external load
Patented entry zone increases the travel accuracy up to a factor of six
Can be used on all SNS ball guide rails
Available in five common sizes
Lube fittings with metal threads on all sides
Long-term lubrication is possible over several years
The same high load ratings in all four main directions of loading
Minimum quantity lubrication system with integrated reservoir for oil lubrication
Optimized entry-zone geometry and high number of balls minimize variation in elastic deflection
Ball chain for low noise level and best travel behavior
Specifications
Specifications
| Version | Ball rail system |
| Nominal size [mm] | 25 |
| Format | SLS - slimline, long, standard height |
| Model | High-precision ball runner block |
| Material (profiled rail systems) | Corrosion-resistant steel (Resist NR II) |
| Preload class | C1 - Low preload |
| Accuracy class | H - Highly accurate |
| Seal | SS - Standard seal |
| Ball chain | With ball chain |
| Self-aligning for compensation of misalignments | Without self-alignment |
| Width of runner block [mm] | 48.0 |
| Length of runner block [mm] | 107.9 |
| Height of runner block [mm] | 29.9 |
| Height runner block with guide rail [mm] | 36.0 |
| Lubrication | Without lubrication (dry) |
| Maximum acceleration rate amax [m/s²] | 500.0 |
| Note: Max. acceleration amax | If 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] | 5.0 |
| Permissible ambient temperature (min. ... max.) | 0 °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] | 0.65 |
| Dynamic load capacity C50 [N] | 22800.0 |
| Note: dynamic load capacity C50 | Dynamic 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] | 18100.0 |
| Note: dynamic load capacity C100 | Dynamic 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] | 27400.0 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 420.0 |
| Note: Dynamic torsional moment load capacity Mt50 | Dynamic 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] | 330.0 |
| Note: Dynamic torsional moment load capacity Mt100 | Dynamic 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] | 410 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 330.0 |
| Note: Dynamic longitudinal moment load capacity ML50 | Dynamic 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] | 265.0 |
| Note: Dynamic longitudinal moment load capacity ML100 | Dynamic 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] | 320 |
| Pitch T guide rail [mm] | 60 |
| Dimension A (profiled rail systems) [mm] | 48 |
| Dimension A1 (profiled rail systems) [mm] | 24 |
| Dimension A2 (profiled rail systems) [mm] | 23 |
| Dimension A3 (profiled rail systems) [mm] | 12.5 |
| 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] | 35 |
| Dimension E2 (profiled rail systems) [mm] | 50 |
| Dimension E8 (profiled rail systems) [mm] | 38.3 |
| Dimension E9 (profiled rail systems) [mm] | 11.5 |
| Dimension H [mm] | 36.0 |
| 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] | 20.8 |
| Dimension K2 (profiled rail systems) [mm] | 21.95 |
| Dimension K3 (profiled rail systems) [mm] | 5.5 |
| Dimension K4 (profiled rail systems) [mm] | 5.5 |
| Dimension N3 (profiled rail systems) [mm] | 9 |
| Dimension N6 (profiled rail systems) [mm] | 15.2 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M6 |
| 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 [mm] | 13 |
| Dimension V1 [mm] | 7.5 |
R201221306: frequently asked questions
When can R201221306 be shipped?
R201221306 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 R201221306 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 R201221306 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 R201221306, subject to availability and destination.
More Bosch Rexroth parts
Bosch Rexroth R201221306Price and lead time confirmed within 1 business day
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