BOSCH REXROTH
R044201340
$222.03 USD
- BOSCH REXROTH
- Material:R044201340
- Model:MWA-020-SNS-C1-H-0
Quantity in stock: 0
The Bosch Rexroth MINI R.BLOCK NRII MWA-020-SNS-C1-H-0 (R044201340) is a high-precision miniature ball runner block designed for linear motion applications requiring compact size and high accuracy. This model features a slimline width, standard height, and normal length, crafted from corrosion-resistant steel to ensure longevity and consistent performance even in challenging environments. With an accuracy class of H (High) and a low preload class of C, it offers precise guidance with minimal play, making it suitable for applications where precision is paramount. The MINI R.BLOCK NRII MWA-020-SNS-C1-H-0 is part of the profiled rail systems and can be interchanged with guide rails across all accuracy classes (P, H, and N), providing flexibility in assembly and maintenance. It does not come with a ball chain or initial lubrication, allowing users to customize lubrication according to their specific requirements. The runner block body comes in the standard version without attachment elements on the left or right front reference edges but includes an integrated lube nipple for easy maintenance. This product has been engineered for smooth and quiet operation due to its optimally designed ball return system. It also features ball retention capabilities that facilitate easy replacement when necessary. The runner block's dynamic load capacity follows the standards set by DIN 636, part 2, ensuring reliable performance under dynamic conditions. With a permissible ambient temperature range from -10°C to +100°C for short periods, this runner block can withstand various operational climates while maintaining its integrity. Additionally, it boasts impressive static and dynamic torsional moment load capacities that have been calculated based on its static load rating. In summary, the Bosch Rexroth MINI R.BLOCK NRII MWA-020-SNS-C1-H-0 offers exceptional precision and flexibility for miniature linear motion applications. Its robust construction paired with high accuracy makes it an ideal choice for sophisticated industrial tasks requiring compact linear guidance systems.
Miniature ball runner block, SNS, size 20, Resist NRII, accuracy high, low preload
The miniature version of the ball runner block is characterized by the following product features:
Size 20
Format SNS: Width = slimline, length = normal, height = standard
Runner block body made of corrosion-inert steel
Preload class C1: Low preload
Accuracy class H: High
Without ball chain
Without preservation
Without initial lubrication
Without attachment element, left (front reference edge)
Without attachment element, right (front reference edge)
Lube nipple integrated
Runner block body in standard version
Overall length of the runner block = 69 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Unpacked Weight: 0.263 kg
| Accuracy classes P, H and N |
| Relubrication hole available |
| Smooth, quiet running thanks to optimally designed ball return and guideway |
| Ball retention for easy replacement |
| Data Sheet | Download Data Sheet |
| 2D CAD | Download 2D CAD |
| 2D CAD | Download 2D CAD |
| 3D CAD | Download 3D CAD |
| 3D CAD | Download 3D CAD |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Material (profiled rail systems) | Corrosion resistant steel |
| Height of runner block | 17.5 |
| Footnote permissible ambient temperature (min ... max) | 100 °C admissible for short time. |
| Footnote dynamic load capacity C | Calculated values acc. to DIN 636, part 2 |
| Size E2 (profiled rail systems) | 38 |
| Max. acceleration amax | 250 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Size N5 (profiled rail systems) | 3.1 |
| Size A (profiled rail systems) | 46 |
| Size A3 (profiled rail systems) | 13 |
| Preload force | 158 |
| Format | SNS - slimline, normal, standard height |
| Size A2 (profiled rail systems) | 20 |
| Self-aligning for compensation of misalignments | Without self-alignment |
| Static torsional moment load capacity Mt0 footnote | Calculated values (derived from C, C0) |
| Maximum permissible linear speed vmax | 3 |
| Lubrication | Without initial lubrication and without preservation |
| Ball chain | Without ball chain (standard) |
| Size N3 (profiled rail systems) | 6 |
| Footnote static load capacity C0 | Calculated values acc. to DIN 636, part 2 |
| Pitch T guide rail | 60 |
| Size K (profiled rail systems) | 4 |
| Height of runner block with guide rail | 25 |
| Static load rating C0 | 12230 |
| Dynamic torsional moment load capacity Mt | 81.4 |
| Size B2 (profiled rail systems) | 69 |
| Size B (profiled rail systems) | 66 |
| Note: Maximum permissible speed vmax | Speeds of up to 5 m/s possible. Service life is limited by heightened wear to plastic parts. |
| Preload class | C1 - Low preload |
| Static longitudinal moment load capacity ML0 footnote | Calculated values (derived from C, C0) |
| Seal | Low-friction seal N and longitudinal seal |
| Size B1 (profiled rail systems) | 45.1 |
| Size H (profiled rail system) | 25 |
| Size V1 | 7 |
| Productgroup ID | 17 |
| Accuracy class | H - Highly accurate |
| Size B with tolerance (profiled rail systems) | 66 mm |
| Dynamic longitudinal moment load capacity ML footnote | Calculated values (derived from C, C0) |
| Permissible ambient temperature (max) | |
| Dynamic longitudinal moment load capacity ML | 51.7 |
| Size S2 (profiled rail systems) | M4 |
| Permissible ambient temperature (min) | |
| Static torsional moment load capacity Mt0 | 126 |
| Note: Max. acceleration amax | Only with pre-tensioned systems. For non-preloaded systems: amax = 50 m/s2 |
| Runner block or guide rail | Runner block |
| Width of runner block | 46 |
| Size T1 min (profiled rail systems) | 6.5 |
| Dynamic torsional moment load capacity Mt footnote | Calculated values (derived from C, C0) |
| Length of runner block | 66 |
| Linear guide type | Miniature ball rail system |
| Dynamic load capacity C | 7900 |
| Static longitudinal moment load capacity ML0 | 80 |
| Size E1 (profiled rail systems) | 38 |
| Internal product information | For low-friction seal (Mini) without longitudinal seal |
| Size H1 with longitudinal seal (profiled rail systems) | 18.15 |
| Weight | 0.263 |
| Nominal size | 20 |
| Size H1 (profiled rail systems) | 17.5 |
Load capacities and load moments
|
Size |
7 | 9/M3 | 12 | 15 | 20 | ||
|
C 1) |
N |
|
860 | 1180 | 2310 | 4200 | 7900 |
|
C0 1) |
N |
1400 | 2100 | 3470 | 6260 | 12230 | |
|
Mt 2) |
Nm |
|
3.1 | 5.4 | 13.7 | 31.2 | 81.4 |
|
Mt0 2) |
Nm |
5.1 | 9.6 | 20.6 | 46.3 | 126 | |
|
ML 2) |
Nm |
|
1.9 | 3.6 | 7.9 | 18.3 | 51.7 |
|
ML0 2) |
Nm |
3.2 | 6.4 | 11.8 | 27 | 80 | |
| 1) | Calculated values as per DIN 636, Part 2 |
| 2) | Calculated values (derived from C, C0) |
General technical data
|
Size |
7 | 9/M3 | 12 | 15 | 20 | |
|
amax 1) |
m/s² |
250 | ||||
|
vmax 2) |
m/s |
3 | ||||
|
m |
g |
9 | 16 | 33 | 47 | 177 |
|
Operating conditions |
||||||
|
Size |
7 | 9/M3 | 12 | 15 | 20 | |
|
Permissible ambient temperature (min ... max) 3) |
-10 °C ... +80 °C | |||||
| 1) | Only with pre-tensioned systems. For non-pre-tensioned systems: amax = 50 m/s2 |
| 2) | Speeds of up to 5 m/s are possible. Service life is limited by increased wear to plastic parts. |
| 3) | Brief peaks up to 100°C are permissible. |
Note on dynamic load capacities and moments (see the table)
Determination of the dynamic load ratings and moments is based on a total travel of 100,000 m.
Often only 50,000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Observe friction of the different seals. See document “Technical data”.
Technical data
Accuracy classes
Legend
|
Symbol |
Description |
Unit |
|
amax |
Maximum acceleration travel |
m/s2 |
|
C |
Dynamic load capacity |
N |
|
C0 |
Static load capacity |
N |
|
m |
Mass |
g |
|
ML |
Dynamic longitudinal moment load capacity |
Nm |
|
ML0 |
Static longitudinal moment load capacity |
Nm |
|
Mt |
Dynamic torsional moment load capacity |
Nm |
|
Mt0 |
Static torsional moment laod capacity |
Nm |
|
vmax |
Maximum permissible speed |
m/s |
Rigidity of the miniature ball rail systems at pretension
Mounted runner block with 4 screws, strength class 12.9
lift-off load
Down load
| 1) | 4 lubrication holes |
| 2) | Sizes 7 to 12 |
| 3) | Funnel-type lube nipple |
| 4) | Sizes 15 - 20 |
Dimensions
|
Size |
7 | 9/M3 | 12 | 15 | 20 | |
|
A |
mm |
17 | 20 | 27 | 32 | 46 |
|
A2 |
mm |
7 | 9 | 12 | 15 | 20 |
|
A3 |
mm |
5 | 5.5 | 7.5 | 8.5 | 13 |
|
B |
mm |
24 | 31 | 34.8 | 43 | 66 |
|
B1 |
mm |
14.9 | 20.7 | 21.6 | 27.2 | 45.1 |
|
B2 |
mm |
- | 46 | 69 | ||
|
E1 |
mm |
12 | 15 | 20 | 25 | 38 |
|
E2 |
mm |
8 | 10 | 15 | 20 | 38 |
|
H |
mm |
8 | 10 | 13 | 16 | 25 |
|
H1 Without longitudinal seal |
mm |
6.5 | 8 | 10 | 12 | 17.5 |
|
H1 With longitudinal seal |
mm |
- | 12.65 | 18.15 | ||
|
K |
mm |
- | 4 | |||
|
N3 |
mm |
2.5 | 3 | 3.5 | 4 | 6 |
|
N5 |
mm |
- | 2.1 | 3.1 | ||
|
S2 |
mm |
M2 | M3 | M4 | ||
|
V1 |
mm |
2 | 2.8 | 3.3 | 4.7 | 7 |
The runner blocks are delivered on a mounting aid.