BOSCH REXROTH
R103782020

$132.58 USD

BOSCH REXROTH
Material:R103782020
Model:LSAO-B-20-DD

Quantity in stock: 0

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***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 LSAO-B-20-DD (R103782020) is a high-precision linear motion component designed for applications requiring robust guidance and a high degree of rigidity. This linear set is composed of an aluminum housing with an open design and features a super linear bushing B, which lacks self-alignment capabilities. The product is characterized by its lightweight precision housing made from aluminum and secured by a grooved taper pin. It includes external seals for protection and is relubricatable to ensure long service life. The shaft diameter 'd' of the unit allows for precise motion control, while the two integrated wiper seals on each side maintain cleanliness within the system and contribute to the frictional force experienced during operation. This frictional force varies depending on speed and lubrication conditions. The LINEAR-SET LSAO-B-20-DD offers excellent dynamic load capacity, ensuring it can handle the main direction of loading effectively. This linear set is capable of withstanding maximum accelerations and operates within a permissible ambient temperature range, ensuring reliability across various operational environments. Its outer diameter 'D' is optimized for long guides that require additional shaft support. Additionally, it has been tested to sustain a significant amount of total travel without failure, highlighting its durability. Suitable for use in settings where high-speed linear motion is necessary, this product can achieve speeds up to a specified maximum while maintaining performance integrity over time. The static load rating further underscores its capacity to withstand loads without movement. In summary, the Bosch Rexroth LINEAR-SET LSAO-B-20-DD (R103782020) is engineered for applications that demand precise linear guidance with high rigidity and durability. Its construction quality and capability to maintain performance under various conditions make it an essential component in sophisticated linear motion systems.

Linear set (aluminum), O-B-20, with two seals

Linear set (aluminum)
Open
With super LB B
Shaft diameter d = 20
With two seals
Version: Standard

Unpacked Weight: 0.302 kg

For long guides requiring shaft support and a high level of rigidity.

Lightweight precision housing (aluminum)
super linear bushing B without self-alignment feature
Secured by grooved taper pin
External seals
Relubricatable

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Manual	Download Manual
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Size V	5
Footnote shaft radial clearance h6	Clamped (fastened).
Series	Super B (no 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	45
Footnote dynamic load capacity C	The load capacities apply for the main direction of loading.
Size H	25
Max. acceleration amax	150
Permissible ambient temperature	-10 °C ... +80 °C
Outer diameter D	32
Size H3	10
Breakaway force	3
Size L3	13.5
Size H4	3.5
Maximum permissible linear speed vmax	3
Size D	32
Footnote static load capacity C0	The load capacities apply for the main direction of loading.
Size N1	24
Static load rating C0	1180
Size M	30
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	1.5
Size A	60
Productgroup ID	17
Size N2	18
Size W	9
Size E3	50
Permissible ambient temperature (max)	+80
Size E2	32
Size E4	45
Angle α	55
Size SW	2.5
Permissible ambient temperature (min)	-10
Size S	6.6
Shaft diameter d	20
Linear guide type	Linear bushing and shaft
Filter for linear bushings and shafts	Linear sets with linear bushings
Format of linear bushings	O – Open
Dynamic load capacity C	2570
Size L	54
Size S2	5
Weight	0.302
Size D1 with tolerance
Size H1	42

General technical data

Ø d	mm	12	16	20	25	30	40	50
amax	m/s²	150
vmax 1)	m/s	3
m	kg	0.11	0.17	0.3	0.57	0.86	1.6	2.6
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 3)	µm	+ 28 - 1		+ 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	12	16	20	25	30	40	50
C 1)	N	1060	1500	2570	5040	5020	8620	12500
C0 1)	N	510	830	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

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-R103782020-Linear set (aluminum), O-B-20, with two seals

1)	fs = factor
2)	s = movement path

Definition of dynamic load ratings

a)	Lubricating hole sealed with plastic cap

Dimensions

Ød	mm	12	16	20	25	30	40	50
D	mm	22	26	32	40	47	62	75
α	°	66	68	55	57		56	54
A	mm	43	53	60	78	87	108	132
E1		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		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	34	42	50	64	72	90	108
E4	mm	32	35	45	20	30	35	42
H	mm	18	22	25	30	35	45	50
Tolerance for H 1)	µm	+ 8 - 16
H1	mm	28	35	42	51	60	77	88
H3	mm	10				11.5	14	12.5
H4	mm	1.5	2.5	3.5	4	6
L	mm	39	43	54	67	79	91	113
L3	mm	10.5	11.5	13.5	15	16	18	22
M 1)		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	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
V	mm	5			6.5	8	10	12
W 4)	mm	6.5	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.