BOSCH REXROTH
R103562520
$138.39 USD
- BOSCH REXROTH
- Material:R103562520
- Model:LSA-A-25-DD
Quantity in stock: 0
The Bosch Rexroth LINEAR-SET LSA-A-25-DD (R103562520) is a high-quality linear motion set designed for precision applications. This set includes a lightweight precision housing made of aluminum and features the super linear bushing A with a self-alignment capability, ensuring smooth and accurate motion. The inclusion of external seals provides protection against contaminants, while also making the system relubricatable for maintenance ease. With a shaft diameter labeled as 'd', this LINEAR-SET is constructed to deliver reliable performance under various conditions, including permissible ambient temperatures ranging from -20°C to 80°C. It boasts an impressive dynamic load capacity, which should be adjusted by specific factors if the loading direction deviates from the main direction. The maximum acceleration (amax) and maximum permissible linear speed (vmax) specifications ensure that the system can handle rapid movements without compromising stability or longevity. The product's outer diameter is categorized under Size H, which aligns with its breakaway force and maximum permissible linear speed parameters. The static load rating C provided for Size M indicates the system's ability to withstand forces without movement. Notably, this model can achieve speeds up to 5 m/s, although service life may be reduced due to increased wear on plastic components; however, tests have indicated a robust travel range without failure. Weighing in at just 0.5 kg, the LINEAR-SET LSA-A-25-DD is ideal for applications requiring precise guidance with an easy installation process. Its closed format ensures that all internal components are shielded from external elements, contributing to its durability and consistent operation over time. Designed for use with fixed working bore diameters, this linear set exemplifies Bosch Rexroth's commitment to engineering excellence in motion control solutions.
Linear set (aluminum), A-25, with two seals
Linear set (aluminum)
Closed
With super LB A
Shaft diameter d = 25
With two seals
Version: Standard
Unpacked Weight: 0.663 kg
For precision guides with easy installation. Fixed working bore diameter.
| Lightweight precision housing (aluminum) |
| super linear bushing A with self-alignment feature |
| External seals |
| Relubricatable |
| 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 |
| Size V | 6.5 |
| 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 | 60 |
| Footnote dynamic load capacity C | The load capacities apply for the main direction of loading. If the load direction 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 H | 30 |
| Max. acceleration amax | 150 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Outer diameter D | 40 |
| Size H3 | 10 |
| Breakaway force | 4.5 |
| Size L3 | 15 |
| Size H4 | 20 |
| Maximum permissible linear speed vmax | 3 |
| Size D | 40 |
| Footnote static load capacity C0 | The load capacities apply for the main direction of loading. If the load direction 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 | 29 |
| Static load rating C0 | 2790 |
| Size M | 39 |
| 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 | 2 |
| Size A | 78 |
| Productgroup ID | 17 |
| Size N2 | 22 |
| Size E3 | 64 |
| Permissible ambient temperature (max) | |
| Size E2 | 40 |
| Size E4 | 20 |
| Size SW | 5 |
| Permissible ambient temperature (min) | |
| Size S | 8.4 |
| Shaft diameter d | 25 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear sets with linear bushings |
| Format of linear bushings | – Closed |
| Dynamic load capacity C | 4820 |
| Size L | 67 |
| Size S2 | 6 |
| Weight | 0.663 |
| Size D1 with tolerance | |
| Size H1 | 60 |
General technical data
|
Ø d |
mm |
10 | 12 | 16 | 20 | 25 | 30 | 40 | 50 |
|
amax |
m/s² |
150 | |||||||
|
vmax 1) |
m/s |
3 | |||||||
|
m |
kg |
0.1 | 0.13 | 0.2 | 0.34 | 0.65 | 0.97 | 1.8 | 3 |
|
FR 2) |
N |
0.5 | 0.8 | 1 | 1.5 | 2 | 2.5 | 3 | 4 |
|
Breakaway force |
N |
1 | 1.5 | 2 | 3 | 4.5 | 6 | 8 | 10 |
|
Shaft radial clearance h6 |
µm |
+ 36 + 9 |
+ 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 |
10 | 12 | 16 | 20 | 25 | 30 | 40 | 50 |
|
C 1) |
N |
730 | 1020 | 1250 | 2470 | 4820 | 5860 | 10070 | 14730 |
|
C0 1) |
N |
380 | 490 | 620 | 1340 | 2790 | 3570 | 5570 | 8280 |
| 1) | The load ratings apply for the main direction of loading. If the load direction is not the main direction of loading, the 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 |
|
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) | Lubricating hole sealed with plastic cap |
Dimensions
|
Ød |
mm |
10 | 12 | 16 | 20 | 25 | 30 | 40 | 50 |
|
D |
mm |
19 | 22 | 26 | 32 | 40 | 47 | 62 | 75 |
|
A |
mm |
40 | 43 | 53 | 60 | 78 | 87 | 108 | 132 |
|
E1 |
29 mm ±0.15 | 32 mm ±0.15 | 40 mm ±0.15 | 45 mm ±0.15 | 60 mm ±0.15 | 68 mm ±0.15 | 86 mm ±0.15 | 108 mm ±0.2 | |
|
E2 |
20 mm ±0.15 | 23 mm ±0.15 | 26 mm ±0.15 | 32 mm ±0.15 | 40 mm ±0.15 | 45 mm ±0.15 | 58 mm ±0.15 | 50 mm ±0.2 | |
|
E3 |
mm |
31 | 34 | 42 | 50 | 64 | 72 | 90 | 108 |
|
E4 |
mm |
29 | 32 | 35 | 45 | 20 | 30 | 35 | 42 |
|
H |
mm |
16 | 18 | 22 | 25 | 30 | 35 | 45 | 50 |
|
Tolerance for H 1) |
µm |
+ 8 - 16 |
|||||||
|
H1 |
mm |
31.5 | 35 | 42 | 50 | 60 | 70 | 90 | 105 |
|
H3 |
mm |
10 | 11.5 | 14 | 12.5 | ||||
|
H4 |
mm |
10 | 13 | 16 | 20 | 22 | 28 | 37 | |
|
L |
mm |
36 | 39 | 43 | 54 | 67 | 79 | 91 | 113 |
|
L3 |
mm |
10.5 | 11.5 | 13.5 | 15 | 16 | 18 | 22 | |
|
M 1) |
20 mm ±0.01 | 21.5 mm ±0.01 | 26.5 mm ±0.01 | 30 mm ±0.01 | 39 mm ±0.01 | 43.5 mm ±0.01 | 54 mm ±0.01 | 66 mm ±0.01 | |
|
N1 |
mm |
15 | 16.5 | 21 | 24 | 29 | 34 | 44 | 49 |
|
N2 |
mm |
11 | 13 | 18 | 22 | 26 | 34 | ||
|
S 2) |
mm |
4.3 | 5.3 | 6.6 | 8.4 | 10.5 | 13.5 | ||
|
S1 |
M5 | M6 | M8 | M10 | M12 | M16 | |||
|
S2 3) |
mm |
4 | 5 | 6 | 8 | 10 | |||
|
SW |
mm |
2.5 | 3 | 4 | 5 | 6 | 8 | ||
|
V |
mm |
5 | 6.5 | 8 | 10 | 12 | |||
| 1) | Clamped (fastened) in relation to Ø d. |
| 2) | Fixing screws ISO 4762-8.8 |
| 3) | Pin hole centering. |
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.
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