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BOSCH REXROTH
R107162520


$236.71 USD
  • BOSCH REXROTH
  • Material:R107162520
  • Model:LSAS-A-25-DD

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth LINEAR-SET LSAS-A-25-DD (R107162520) is a high-quality linear motion component designed to provide smooth and precise linear movement in various applications. This linear set is comprised of an aluminum housing with a side opening, which facilitates easy installation and maintenance. It includes a super linear bushing A with a self-alignment feature, ensuring reliable guidance and extended service life even under misaligned conditions. The LSAS-A-25-DD features a lightweight precision housing made from aluminum, offering an excellent strength-to-weight ratio for applications where weight is a critical factor. The set comes with two external seals that protect the internal components from contaminants, enhancing durability and performance reliability. The seals also contribute to the unit's ability to handle dynamic load capacities effectively while maintaining low frictional drags, thanks to its integrated wiper seals on both sides. With a shaft diameter of 25 mm, this linear set is designed for standard applications requiring high accuracy and repeatability. It can withstand maximum accelerations and operate within an ambient temperature range of -20°C to +80°C without compromising its functionality. The outer diameter of the bushing ensures compatibility with corresponding components within the system. The LINEAR-SET LSAS-A-25-DD boasts impressive load capacities in the main direction of loading, ensuring it can handle significant forces from all directions without reducing its load capacity. Its design also prevents loads exerted counter to the direction of opening from causing considerable reductions in load capacity—a common issue with open linear bushings. This model is capable of achieving maximum permissible speeds up to 5 m/s, although it's important to note that at these speeds, the service life may be limited due to increased wear on plastic parts. Nevertheless, tests have demonstrated that this linear set can achieve total travel ranging from 100 km² to 1000 km² without failure. Overall, the Bosch Rexroth LINEAR-SET LSAS-A-25-DD (R107162520) represents an efficient solution for designers seeking a robust and reliable linear motion system component that ensures precision movement while absorbing forces effectively in various industrial applications.


Linear set (aluminum), S-A-25, with two seals

Linear set (aluminum)
Side opening
With super LB A
Shaft diameter d = 25
With two seals
Version: Standard

Unpacked Weight: 0.785 kg

For absorbing forces from all directions without reducing the load capacity.

Loads exerted counter to the direction of opening with open Linear Bushings usually result in a considerable reduction in load capacity. In order to prevent this and facilitate the installation of specific open Linear Bushings, the lightweight Linear Set with side opening has been developed.

Lightweight precision housing (aluminum)
super linear bushing A with self-alignment feature
Secured by grooved taper pin
External seals
Relubricatable
Size V6.5
Footnote shaft radial clearance h6clamped (fastened)
SeriesSuper A (with self-alignment feature)
Footnote friction force FRFrictional 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 E128
Footnote dynamic load capacity CThe load capacities apply for the main direction of loading.
Size H35
Max. acceleration amax150
Permissible ambient temperature-10 °C ... +80 °C
Outer diameter D40
Size H338
Breakaway force4.5
Size L329
Size H426
Maximum permissible linear speed vmax3
Size D40
Footnote static load capacity C0The load capacities apply for the main direction of loading.
Size N150
Static load rating C02250
Size M21
Note: Maximum permissible speed vmaxSpeeds 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 force2
Size A75
Productgroup ID17
Size N218
Size W11.5
Size E342
Permissible ambient temperature (max)+80
Size E236
Size E452
Angle α57
Size SW3
Permissible ambient temperature (min)-10
Size S10.5
Shaft diameter d25
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear sets with linear bushings
Format of linear bushingsS – With side opening
Dynamic load capacity C4130
Size L67
Size S28
Weight0.785
Size D1 with tolerance
Size H172

General technical data

Ø d

mm

20 25 30 40 50

amax

m/s²

150

vmax 1)

m/s

3

m

kg

0.42 0.8 1.2 2 3.2

FR 2)

N

1.5 2 2.5 3 4

Breakaway force

N

3 4.5 6 8 10

Shaft radial clearance h6 3)

µm

+ 31
- 2
+ 35
- 3

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.
3) Clamped (fastened).

Load capacities and load moments

Ød

mm

20 25 30 40 50

C 1)

N

2570 5040 5020 8620 12500

C0 1)

N

1180 2470 2880 4480 6620
1) The load ratings apply for the main direction of loading.
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

See the notes on installing Linear Sets with side opening.

For load in the direction of opening, please refer to the loading diagrams (see "Diagrams" section).

Impact of load direction on load rating of open Linear Bushings

The load ratings C and C0 apply for the main direction of loading ρ = 0°. For all other load directions, the load ratings must be multiplied by the factors fρ (dynamic load rating C) or fρ0 (static load rating C0).

Installing specific Linear Bushings can prevent reductions in load capacity (see Linear Set with side opening).

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 .

technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals
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.

technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals
FR = Frictional drag
s = travel distance
v = travel speed
a) Super Linear Bushing, A Ød 20
b) Conventional Linear Bushing, Ød 20
technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals
technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals
a) Lubricating hole M8 x 1 sealed with plastic cap

Dimensions

Ød

mm

20 25 30 40 50

D

mm

32 40 47 62 75

α

°

55 57 56 54

A

mm

60 75 86 110 127

E1

22 mm ±0.15 28 mm ±0.15 34 mm ±0.15 43 mm ±0.15 50 mm ±0.15

E2

30 mm ±0.15 36 mm ±0.15 42 mm ±0.15 48 mm ±0.15 62 mm ±0.15

E3

mm

33 42 48 62 70

E4

mm

42 52 60 68 85

H

mm

30 35 40 45 50

Tolerance for H 1)

µm

+ 8
- 16

H1

mm

60 72 82 100 115

H3

mm

32 38 44 50 56

H4

mm

22 26 30 38 45

L

mm

54 67 79 91 113

L3

mm

23.5 29 34 40 48

M 1)

17 mm ±0.01 21 mm ±0.01 25 mm ±0.01 32 mm ±0.01 38 mm ±0.01

N1

mm

42 50 55 67 78

N2

mm

15 18 24 30

S 2)

mm

8.4 10.5 13.5 15.5 17.5

S1

M10 M12 M16 M20

S2 3)

mm

6 8 10 12

SW

mm

2.5 3 4 5

V

mm

5 6.5 8 10 12

W 4)

mm

9 11.5 14 19.5 22.5
1) Clamped (fastened) in relation to Ø d.
2) Fixing screws ISO 4762-8.8
3) Pin hole centering.
4) Minimum size in relation to Ø d.

Life expectancy calculation

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

technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals

On-shaft relubrication on relubricatable Linear Bushing only until lubricant seeps out.

 

Notes on installing Linear Sets with side opening

 

No reference edges:

technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals Straighten the first shaft using the shaft support rail and fasten it in place. Align the second shaft parallel to the first and fasten it in place. Slide the Linear Sets onto the shaft and fasten them to the machine table.

 

With reference edges:

technical illustration-R107162520-Linear set (aluminum), S-A-25, with two seals Press the first shaft with shaft support rail onto the reference edge and fasten the shaft support rail in place. Align the second shaft parallel to the first and fasten the shaft support rail in place. Slide the Linear Sets onto the shafts. Next: with one reference edge on the machine base and one on the machine table: Press the Linear Sets on the first shaft onto the reference edge of the machine table and fasten into place. Fasten the Linear Sets on the second shaft to the machine table. with just one reference edge on the machine base: Fasten Linear Sets to the machine table.

General mounting instructions

Lubrication

Directives and standards

Notes