BOSCH REXROTH
R103761220

$107.82 USD

BOSCH REXROTH
Material:R103761220
Model:LSAO-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 LSAO-A-12-DD (R103761220) is a high-quality linear motion set designed for applications requiring precision guidance and support. This linear set features a lightweight precision aluminum housing and a super linear bushing A with a self-alignment feature, ensuring smooth and accurate movement. The shaft diameter 'd' fits securely within the housing, while grooved taper pins provide additional security. It includes external seals for protection against contaminants and is relubricatable for maintenance ease. The LINEAR-SET LSAO-A-12-DD is equipped with integrated wiper seals on both sides to minimize frictional drags, which are dependent on speed and lubrication conditions. It boasts an impressive dynamic load capacity, making it suitable for main loading directions, and has been tested to achieve total travel distances significantly without failure. The product also features a breakaway force that ensures reliability under various conditions. With its ability to handle maximum accelerations and operate within a wide range of ambient temperatures, this linear set is versatile for different environments. Its outer diameter 'D' is tailored to fit specific applications while maintaining high rigidity for long guides that require shaft support. Additionally, the static load rating further underscores its robustness in stationary applications. This Bosch Rexroth linear set has a notable maximum permissible linear speed, allowing it to handle high-speed movements with limited service life due to wear on plastic parts under such conditions. With its substantial weight, the LINEAR-SET LSAO-A-12-DD is ideal for systems that demand stability and durability in their linear motion components.

Linear set (aluminum), O-A-12, with two seals

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

Unpacked Weight: 0.109 kg

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

Lightweight precision housing (aluminum)
super linear bushing A with self-alignment feature
Secured by grooved taper pin
External seals
Relubricatable

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Manual	Download Manual
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Manual	Download Manual

Size V	5
Footnote shaft radial clearance h6	clamped (fastened)
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	32
Footnote dynamic load capacity C	The load capacities apply for the main direction of loading.
Size H	18
Max. acceleration amax	150
Permissible ambient temperature	-10 °C ... +80 °C
Outer diameter D	22
Size H3	10
Breakaway force	1.5
Size L3	10.5
Size H4	1.5
Maximum permissible linear speed vmax	3
Size D	22
Footnote static load capacity C0	The load capacities apply for the main direction of loading.
Size N1	16.5
Static load rating C0	510
Size M	21.5
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	0.8
Size A	43
Productgroup ID	17
Size N2	11
Size W	6.5
Size E3	34
Permissible ambient temperature (max)	+80
Size E2	23
Size E4	32
Angle α	66
Size SW	2.5
Permissible ambient temperature (min)	-10
Size S	4.3
Shaft diameter d	12
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	1060
Size L	39
Size S2	4
Weight	0.109
Size D1 with tolerance
Size H1	28

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-R103761220-Linear set (aluminum), O-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.

	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	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.