BOSCH REXROTH
R044429401
$139.55 USD
- BOSCH REXROTH
- Material:R044429401
- Model:MWA-012-SLS-C0-N-3
Quantity in stock: 0
The Bosch Rexroth MINI R.BLOCK NRII (R044429401) is a state-of-the-art miniature ball runner block designed for high-precision linear motion applications. This model, part of the Miniature Ball Rail System, is notable for its slimline width, long length, and standard height, providing a compact footprint without sacrificing performance. The runner block body is constructed from corrosion-resistant steel, ensuring longevity and reliability in diverse operating conditions. This MINI R.BLOCK NRII features a preload class C, meaning it operates preload-free for smooth movement with minimal friction. It comes with an accuracy class N for standard precision requirements and does not include a ball chain to allow for easy replacement and maintenance. Initial lubrication is applied to the unit; however, it does not come preserved for long-term storage. The product's dimensions include an overall runner block length of . mm and a height that complements the system's profiled rail sizes A, B, E, H, S, T, V, and N. The dynamic load capacity C and static load capacity C0 are calculated according to DIN standards part 5. The MINI R.BLOCK NRII can withstand ambient temperatures ranging from - to + degrees Celsius over short periods. Additional features include relubrication openings for maintenance ease and an absence of attachment elements on both left and right front reference edges. The unit can achieve maximum permissible linear speeds up to m/s under pretensioned systems but should be noted that service life may be limited by wear on plastic parts at such speeds. Designed without self-alignment features, this miniature ball runner block compensates for misalignments within the system itself. It has impressive static and dynamic torsional moment load capacities (Mt), ensuring stability under various loading conditions. In summary, the Bosch Rexroth MINI R.BLOCK NRII (R044429401) offers precise linear motion capabilities in a compact form factor suitable for various applications requiring high-quality miniature guidance systems.
Miniature ball runner block, SLS, size 12, Resist NRII, speed standard, preload-free
The miniature version of the ball runner block is characterized by the following product features:
Size 12
Format SLS: Width = slimline, length = long, height = standard
Runner block body made of corrosion-inert steel
Preload class C0: Preload-free
Accuracy class N: Standard
Without ball chain
With initial lubrication and without preservation
Roller bearing grease Dynalub 520
Without attachment element, left (front reference edge)
Without attachment element, right (front reference edge)
With relubrication openings
Runner block body in standard version
Overall length of the runner block = 47.5 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Unpacked Weight: 0.0634 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 | 10 |
| 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) | 20 |
| Max. acceleration amax | 250 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Size A (profiled rail systems) | 27 |
| Size A3 (profiled rail systems) | 7.5 |
| Preload force | 0 |
| Format | SLS - slimline, long, standard height |
| Size A2 (profiled rail systems) | 12 |
| 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 | With initial lubrication and without preservation |
| Ball chain | Without ball chain (standard) |
| Size N3 (profiled rail systems) | 3.5 |
| Footnote static load capacity C0 | Calculated values acc. to DIN 636, part 2 |
| Pitch T guide rail | 25 |
| Height of runner block with guide rail | 13 |
| Static load rating C0 | 5630 |
| Dynamic torsional moment load capacity Mt | 19.3 |
| Size B (profiled rail systems) | 47.5 |
| 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 | C0 – Without preload (clearance) |
| Static longitudinal moment load capacity ML0 footnote | Calculated values (derived from C, C0) |
| Seal | Low-friction seal (mini) |
| Size B1 (profiled rail systems) | 34.5 |
| Size H (profiled rail system) | 13 |
| Size V1 | 3.3 |
| Productgroup ID | 17 |
| Accuracy class | N - normal |
| Size B with tolerance (profiled rail systems) | 47,5 mm |
| Dynamic longitudinal moment load capacity ML footnote | Calculated values (derived from C, C0) |
| Permissible ambient temperature (max) | |
| Dynamic longitudinal moment load capacity ML | 16.8 |
| Size S2 (profiled rail systems) | M3 |
| Permissible ambient temperature (min) | |
| Static torsional moment load capacity Mt0 | 33.5 |
| 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 | 27 |
| Size T1 min (profiled rail systems) | 6 |
| Dynamic torsional moment load capacity Mt footnote | Calculated values (derived from C, C0) |
| Length of runner block | 47.5 |
| Linear guide type | Miniature ball rail system |
| Dynamic load capacity C | 3240 |
| Static longitudinal moment load capacity ML0 | 29.2 |
| Size E1 (profiled rail systems) | 20 |
| Internal product information | For low-friction seal (Mini) without longitudinal seal |
| Size H1 with longitudinal seal (profiled rail systems) | 10.65 |
| Weight | 0.0634 |
| Nominal size | 12 |
| Size H1 (profiled rail systems) | 10 |
Load capacities and load moments
|
Size |
7 | 9/M3 | 12 | 15 | ||
|
C 1) |
N |
|
1220 | 1570 | 3240 | 5940 |
|
C0 1) |
N |
2340 | 3150 | 5630 | 10170 | |
|
Mt 2) |
Nm |
|
4.5 | 7.2 | 19.3 | 44 |
|
Mt0 2) |
Nm |
8.5 | 14.5 | 33.5 | 75.3 | |
|
ML 2) |
Nm |
|
4.3 | 7 | 16.8 | 39.2 |
|
ML0 2) |
Nm |
8.3 | 14 | 29.2 | 67.1 | |
| 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 | |
|
amax 1) |
m/s² |
250 | |||
|
vmax 2) |
m/s |
3 | |||
|
m |
g |
14 | 26 | 51 | 94 |
|
Operating conditions |
|||||
|
Size |
7 | 9/M3 | 12 | 15 | |
|
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
| 1) | δel. = elastic deflection μm |
| 2) | F = load N |
lift-off load
Down load
| 1) | 4 lubrication holes |
| 2) | Sizes 7, 9/M3, 12 |
| 3) | Funnel-type lube nipple |
| 4) | Size 15 |
Dimensions
|
Size |
7 | 9/M3 | 12 | 15 | |
|
A |
mm |
17 | 20 | 27 | 32 |
|
A2 |
mm |
7 | 9 | 12 | 15 |
|
A3 |
mm |
5 | 5.5 | 7.5 | 8.5 |
|
B |
mm |
33 | 41.4 | 47.5 | 60.8 |
|
B1 |
mm |
24.1 | 31.3 | 34.5 | 45 |
|
B2 |
mm |
- | 63.8 | ||
|
E1 |
mm |
12 | 15 | 20 | 25 |
|
E2 |
mm |
13 | 16 | 20 | 25 |
|
H |
mm |
8 | 10 | 13 | 16 |
|
H1 Without longitudinal seal |
mm |
6.5 | 8 | 10 | 12 |
|
H1 With longitudinal seal |
mm |
- | 8.65 | 10.65 | 12.65 |
|
K |
mm |
- | 4 | ||
|
N3 |
mm |
2.5 | 3 | 3.5 | 4 |
|
N5 |
mm |
- | 2.1 | ||
|
S2 |
mm |
M2 | M3 | ||
|
V1 |
mm |
2 | 2.8 | 3.3 | 4.7 |
The runner blocks are delivered on a mounting aid.