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BOSCH REXROTH
R108161240


$94.24 USD
  • BOSCH REXROTH
  • Material:R108161240
  • Model:LSGF-A-12-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 LSGF-A-12-DD (R108161240) is a high-quality linear motion set designed for precision applications requiring smooth and accurate guidance. This model features a flanged housing made from lamellar graphite cast iron, providing robust support and durability. The set includes a super linear bushing A with a self-alignment feature, ensuring optimal performance and reducing misalignment issues. It is equipped with integrated wiper seals on both sides to protect against contaminants, enhancing the longevity of the system. The shaft diameter 'd' allows for compatibility with various design requirements, while the two retaining rings and additional spacer rings made of steel ensure secure positioning. The LINEAR-SET LSGF-A-12-DD has a standard precision class and does not allow for adjustable radial clearance, making it suitable for applications where consistent movement is critical. It does not come pre-lubricated, allowing users to apply their preferred lubrication based on specific operating conditions. With a dynamic load capacity C based on total travel of 100 km (with adjustments for travel at 50 km), this linear set can handle significant loads while maintaining smooth operation. The static load rating C0 reflects the unit's ability to withstand forces without motion. The maximum acceleration amax highlights its capability to handle rapid movements within its operating range. The permissible ambient temperature range extends from -20°C to +80°C, accommodating various environmental conditions. The breakaway force of 0.5 N signifies the minimal initial force required to initiate movement, indicating low stiction characteristics. Its maximum permissible linear speed vmax ensures that it can operate up to certain velocities without compromising service life or performance. Weighing in at 0.4 kg, this compact yet sturdy linear set is an ideal solution for vertical shaft designs in modular units within the Linear Set series, offering reliability and precision in demanding applications.


Linear set (steel), F-A-12, with two seals

Linear set (steel)
Flange
With super LB A
Shaft diameter d = 12
With two seals
Version: Standard

Unpacked Weight: 0.095 kg

This modular unit complements the Linear Set series and is used for designs with a vertical shaft.

Precision flanged housing (lamellar graphite cast iron)
super linear bushing A with self-alignment feature
Two retaining rings with two additional spacer rings (steel) for shaft diameters 12 to 40
Integrated wiper seals
Radial clearance not adjustable
No initial lubrication
Size V6
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.
Footnote dynamic load capacity CThe dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26.
Max. acceleration amax150
Permissible ambient temperature-10 °C ... +80 °C
Size E30
Size D1 with tolerance24 mm +0,8
Outer diameter D22
Breakaway force1.5
Maximum permissible linear speed vmax3
Size D22
Size D124
Footnote static load capacity C0The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26.
Static load rating C0420
Size S H135.5
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 force0.8
Productgroup ID17
Size W10
Permissible ambient temperature (max)+80
Permissible ambient temperature (min)-10
Size L112
Size D1 tolerance+0.8
Shaft diameter d12
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear sets with linear bushings
Format of linear bushingsF – Flange
Dynamic load capacity C830
Size L32
Size D228
Size B42
Weight0.095

General technical data

Ø d

mm

12 16 20 25 30 40 50

amax

m/s²

150

vmax 1)

m/s

3

m

kg

0.095 0.16 0.3 0.57 1.85 1.65 3.4

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

N

830 1020 2020 3950 4800 8240 12060

C0

N

420 530 1050 2180 2790 4350 6470
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.

 

technical illustration-R108161240-Linear set (steel), F-A-12, with two seals

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-R108161240-Linear set (steel), F-A-12, 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-R108161240-Linear set (steel), F-A-12, with two seals technical illustration-R108161240-Linear set (steel), F-A-12, 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-R108161240-Linear set (steel), F-A-12, with two seals

Dimensions

Ød

mm

12 16 20 25 30 40 50

D

mm

22 26 32 40 47 62 75

B 1)

mm

42 50 60 74 84 108 130

D1

24 mm +0.8 28.5 mm +0.8 35 mm +0.8 43 mm +0.8 49.5 mm +0.8 66.5 mm +0.8 81 mm +0.8

D2 1)

mm

28 34 42 54 62 80 98

E

30 mm ±0.12 35 mm ±0.12 42 mm ±0.15 54 mm ±0.15 60 mm ±0.25 78 mm ±0.25 98 mm ±0.25

L

mm

32 36 45 58 68 80 100

L1

mm

12 15 18 23 26 36 72

L1

12 mm 15 mm 18 mm 23 mm 26 mm 36 mm 72 mm

S

H13

mm

5.5 6.6 9 11

V 1)

mm

6 8 10 12 14 16 18

W

mm

10 10.5 13.5 17.5 21 22 14
1) Tolerance ISO 8062-3 - DCTG 9.

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-R108161240-Linear set (steel), F-A-12, with two seals

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

General mounting instructions

Lubrication

Directives and standards

Notes