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BOSCH REXROTH
R108181240


$94.24 USD
  • BOSCH REXROTH
  • Material:R108181240
  • Model:LSGF-B-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-B-12-DD (R108181240) is a high-quality linear set designed for precise linear motion applications. This product features a standard precision flanged housing made from lamellar graphite cast iron and includes a super linear bushing B without a self-alignment feature. The set is equipped with two retaining rings and additional spacer rings crafted from steel, suitable for shaft diameters up to size V. It also incorporates integrated wiper seals on both sides, which are responsible for the noted friction force. The LINEAR-SET LSGF-B-12-DD has been engineered with a radial clearance that is not adjustable and does not come with initial lubrication, emphasizing its low-maintenance design. The dynamic load capacity C (size L) and static load rating C0 (size L) ensure the set can handle substantial loads while maintaining smooth operation. With an outer diameter of size E, this linear guide type offers robust support for the shaft while enabling precise positioning. This unit can operate within an ambient temperature range of -30°C to +80°C and can withstand maximum acceleration amax values specified by the manufacturer. Additionally, it allows for a maximum permissible linear speed vmax, making it suitable for applications requiring high-speed motion. Service life tests have demonstrated reliable performance over significant travel distances ranging from 100 km to 200 km without failure. Weighing in at 0.45 kg, the LINEAR-SET LSGF-B-12-DD is optimized for vertical shaft designs as part of Bosch Rexroth's modular Linear Set series. Its breakaway force and frictional characteristics are carefully balanced to ensure efficient operation under various conditions without radial load. This product is ideal for users seeking precise linear motion solutions that prioritize durability and performance in their mechanical design projects.


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

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

Unpacked Weight: 0.101 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 B without 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
Friction force0.8
Size V6
SeriesSuper B (no 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.
Productgroup ID17
Size W10
Permissible ambient temperature (max)+80
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
Permissible ambient temperature (min)-10
Maximum permissible linear speed vmax3
Size D22
Size D124
Size L112
Size D1 tolerance+0.8
Static load rating C0420
Size S H135.5
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
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.
Size B42
Weight0.101

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-R108181240-Linear set (steel), F-B-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-R108181240-Linear set (steel), F-B-12, with two seals
1) fs = factor
2) s = movement path

Definition of dynamic load ratings

technical illustration-R108181240-Linear set (steel), F-B-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-R108181240-Linear set (steel), F-B-12, with two seals

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

General mounting instructions

Lubrication

Directives and standards

Notes