BOSCH REXROTH
R108561220
$179.67 USD
- BOSCH REXROTH
- Material:R108561220
- Model:LSAT-A-12-DD
Quantity in stock: 0
The Bosch Rexroth LINEAR-SET LSAT-A-12-DD (R108561220) is a high-quality linear set designed for precision guiding and positioning in various applications. This product features a lightweight precision tandem housing made of aluminum, incorporating two super linear bushings A with self-alignment features and external seals. The shaft diameter is optimized for robust performance, and the unit is relubricatable, ensuring longevity and ease of maintenance. Equipped with two seals, the LSAT-A-12-DD linear set is engineered to provide reliable protection against contaminants, thus maintaining smooth operation. The friction force FR is indicative of the minimal frictional drags generated by the integrated wiper seals when not under radial load, which varies based on speed and lubrication. With its dynamic load capacity C, this linear set can handle significant loads while maintaining high performance and precision. The LSAT-A-12-DD can withstand a maximum acceleration of amax and operates efficiently within a permissible ambient temperature range. It has been designed to accommodate a substantial breakaway force and can achieve maximum permissible linear speeds vmax, making it suitable for high-speed applications. Service life tests have shown remarkable durability with total travel ranging from millions to billions of meters without failure. This product has an outer diameter D that suits size H requirements and boasts both dynamic longitudinal moment load capacity ML as well as static longitudinal moment load capacity ML for size L. Despite its robust capabilities, it maintains a modest weight of only kilograms. Ideal for users seeking precision guides that are straightforward to install with fixed working bore diameters, the Bosch Rexroth LINEAR-SET LSAT-A-12-DD also offers versatility as it is available as a Linear Motion Slide variant to cater to different application needs.
Linear set (aluminum), T-A-12, with two seals
Linear set (aluminum)
Tandem, closed
With super LB A
Shaft diameter d = 12
With two seals
Version: Standard
Unpacked Weight: 0.269 kg
For precision guides with easy installation. Fixed working bore diameter.
| Lightweight precision tandem housing (aluminum) |
| Two super linear bushings A |
| External seals |
| Relubricatable |
| Also available as linear motion slide. |
| 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 |
| Series | Super A (with self-alignment feature) |
| Footnote friction force FR | Frictional drags generated by linear bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication. |
| Size E1 | 40 |
| Footnote dynamic load capacity C | Load capacity when both linear bushings are under equal load. The load capacities apply for the main direction of loading. If the direction of loading is not the main direction of loading, the load capacities must be multiplied by the following factors: Ø d 10 to 16: f = 0.82, f0 = 0.86, Ø d 20 to 50: f = 0.82, f0 = 0.78 |
| Size N | 13 |
| Size H | 18 |
| Max. acceleration amax | 150 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Outer diameter D | 22 |
| Size H3 | 10 |
| Breakaway force | 1.5 |
| Maximum permissible linear speed vmax | 3 |
| Size D | 22 |
| Footnote static load capacity C0 | Load capacity when both linear bushings are under equal load. The load capacities apply for the main direction of loading. If the direction of loading is not the main direction of loading, the load capacities must be multiplied by the following factors: Ø d 10 to 16: f = 0.82, f0 = 0.86, Ø d 20 to 50: f = 0.82, f0 = 0.78 |
| Size N1 | 28 |
| Static load rating C0 | 980 |
| Note: Maximum permissible speed vmax | Speeds of up to 5 m/s possible. Service life is limited by heightened wear to plastic parts. Tests have shown total travel from 50 • 105 m to 100 • 105 m without failure. |
| Friction force | 0.8 |
| Productgroup ID | 17 |
| Permissible ambient temperature (max) | |
| Size E2 | 30 |
| Dynamic longitudinal moment load capacity ML | 26 |
| Permissible ambient temperature (min) | |
| Size S | 5.3 |
| Shaft diameter d | 12 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear sets with linear bushings |
| Format of linear bushings | T – Tandem |
| Dynamic load capacity C | 1660 |
| Static longitudinal moment load capacity ML0 | 16 |
| Size L | 76 |
| Size B | 42 |
| Weight | 0.269 |
| Size D1 with tolerance | |
| Size H1 | 35 |
General technical data
|
Ø d |
mm |
12 | 16 | 20 | 25 | 30 | 40 | 50 |
|
amax |
m/s² |
150 | ||||||
|
vmax 1) |
m/s |
3 | ||||||
|
m |
kg |
0.27 | 0.41 | 0.72 | 1.35 | 2.01 | 3.67 | 6.3 |
|
FR 2) |
N |
0.8 | 1 | 1.5 | 2 | 2.5 | 3 | 4 |
|
Breakaway force |
N |
1.5 | 2 | 3 | 4.5 | 6 | 8 | 10 |
|
Shaft radial clearance h6 |
µm |
+ 38 + 10 |
+ 43 + 11 |
+ 50 + 12 |
||||
|
Operating conditions |
||||||||
|
Permissible ambient temperature (min ... max) |
-10 °C ... +80 °C | |||||||
| 1) | Speeds of up to 5 m/s possible. Service life is limited by heightened wear to plastic parts. Tests have shown total travel from 50 • 105 m to 100 • 105 m without failure. |
| 2) | Frictional drags generated by Linear Bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication. |
Load capacities and load moments
|
Ød |
mm |
12 | 16 | 20 | 25 | 30 | 40 | 50 |
|
C 1) |
N |
1660 | 2430 | 4010 | 8180 | 9520 | 16360 | 23930 |
|
C0 1) |
N |
980 | 1660 | 2680 | 4940 | 7140 | 11140 | 16560 |
|
ML |
Nm |
26 | 18 | 84 | 141 | 289 | 576 | 1097 |
|
ML0 |
Nm |
16 | 13 | 54 | 86 | 206 | 374 | 725 |
| 1) | Load rating when both Linear Bushings are under equal load. The load ratings apply for the main direction of loading. If the load direction is not the main direction of loading, the dynamic load ratings must be multiplied by the following factors:Ø d 10 to 16: f = 0.82, f0 = 0.86,Ø d 20 to 50: f = 0.82, f0 = 0.78 |
| The load ratings are based on a total travel of 100, 00 m. When based on 50 000 m, the values in the table need to be multiplied by 1.26. |
Legend
|
Symbol |
Description |
Unit |
|
Ød |
Shaft diameters |
mm |
|
amax |
Maximum acceleration travel |
m/s2 |
|
C |
Dynamic load capacity |
N |
|
C0 |
Static load capacity |
N |
|
FR |
Friction force |
N |
|
m |
Mass |
kg |
|
ML |
Dynamic longitudinal moment load capacity |
Nm |
|
ML0 |
Static longitudinal moment load capacity |
Nm |
|
vmax |
Maximum permissible speed |
m/s |
Impact of load direction on load rating of closed Linear Bushings
The listed load ratings should be chosen depending on installation in minimum or maximum position and should be based on the calculations. If the load direction is clearly defined and the Linear Bushings can be installed in maximum position, the load ratings Cmax. (dynamic load rating) and C0 max (static load rating) can be used. If aligned installation is not possible or the load direction is not defined, the minimum load ratings must be used.
Reduced load capacity with short stroke
In case of short stroke, the service life of the shaft is less than that of the super Linear Bushing. The load ratings C specified in the tables must therefore be multiplied by the factor f.s .
| 1) | fs = factor |
| 2) | s = movement path |
Reduced load capacity with high load
If the load F on a Super Linear Bushing A is more than F > 0.5 x C, the dynamic load rating C decreases.
Definition of dynamic load ratings
Self-alignment feature
The self-alignment feature in the steel bearing plates and machined ball guide grooves ensure quieter travel. The flow chart shows a comparison with a conventional Linear Bushing. The example is based on a load of 800 N and misalignment of about 8 ft (caused by shaft deflection).
Due to the self-alignment feature, two super Linear Bushings must be used on at least one of the shafts in the guide.
| FR = Frictional drag | |
| s = travel distance | |
| v = travel speed | |
| a) | Super Linear Bushing, A Ød 20 |
| b) | Conventional Linear Bushing, Ød 20 |
| a) | Vent hole |
| b) | Lubricating hole M8 x 1 sealed with plastic cap |
Dimensions
|
Ød |
mm |
12 | 16 | 20 | 25 | 30 | 40 | 50 |
|
D |
mm |
22 | 26 | 32 | 40 | 47 | 62 | 75 |
|
B |
mm |
42 | 50 | 60 | 74 | 84 | 108 | 130 |
|
E1 |
40 mm ±0.15 | 45 mm ±0.15 | 55 mm ±0.15 | 70 mm ±0.15 | 85 mm ±0.15 | 100 mm ±0.15 | 125 mm ±0.2 | |
|
E2 |
30 mm ±0.15 | 36 mm ±0.15 | 45 mm ±0.15 | 54 mm ±0.15 | 62 mm ±0.15 | 80 mm ±0.15 | 100 mm ±0.2 | |
|
H |
mm |
18 | 22 | 25 | 30 | 35 | 45 | 50 |
|
Tolerance for H 1) |
µm |
+ 8 - 16 |
||||||
|
H1 |
mm |
35 | 42 | 50 | 60 | 70 | 90 | 105 |
|
H3 |
mm |
10 | 12 | 13 | 15 | 16 | 20 | |
|
L |
mm |
76 | 84 | 104 | 130 | 152 | 176 | 224 |
|
N |
mm |
13 | 18 | 22 | 26 | 34 | ||
|
N1 |
mm |
28 | 35 | 41 | 49 | 56 | 74 | 89 |
|
S 2) |
mm |
5.3 | 6.6 | 8.4 | 10.5 | 13.5 | ||
|
S1 |
M6 | M8 | M10 | M12 | M16 | |||
| 1) | Clamped (fastened) in relation to Ø d. |
| 2) | Fixing screws ISO 4762-8.8 |
Radial clearance
The radial clearance values shown in the table have been determined from statistics and correspond to values expected in practice. The adjustable Linear Sets come clamped to an h5 shaft (lower limit) and set to zero clearance.
Vertical dimension
The tolerance values for the vertical dimension "H" for the Linear Sets shown in the table have been determined from statistics and correspond to values expected in practice.
Bolts
We recommend bolts in accordance with ISO 4762-8.8 for fastening the Linear Sets.
Lubrication
On-shaft relubrication on relubricatable Linear Bushing only until lubricant seeps out.
General mounting instructions
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