Артикул: RX8458
В наличии
Linear Sets with Super Linear Bushings A, tandem, adjustable, R1034 LSATOE-A-..-DD
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Надежность
Профессиональная поддержка
Description
- Lightweight precision tandem housing (aluminum)
- Two Super Linear Bushings A
- Reference edge
- External seals
- Relubricatable
Features
- Also available as Linear Motion Slide.
Product description
For zero-clearance or preloaded guides. Adjusting screw for adjusting radial clearance. These Linear Sets come set to zero clearance.
Technical data
General technical data
| Ø d | mm | 12 | 16 | 20 | 25 | 30 | 40 | 50 |
| amax | m/s² | 150 | ||||||
| vmax 1) | m/s | 3 | ||||||
| m | kg | 0.22 | 0.34 | 0.62 | 1.17 | 1.68 | 3.15 | 5.5 |
| 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 |
| Radial clearance | Comes clamped to h5 shaft (lower limit) and set to zero clearance | |||||||
| 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 1) | N | 1720 | 2430 | 4170 | 6700 | 8150 | 14000 | 20300 |
| C0 1) | N | 1020 | 1660 | 2360 | 4500 | 5760 | 8960 | 13240 |
| ML | Nm | 11 | 18 | 60 | 141 | 163 | 328 | 630 |
| ML0 | Nm | 7 | 13 | 47 | 86 | 116 | 212 | 415 |
| 1) | Dynamic load rating when both Linear Bushings are under equal load. The dynamic 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 |
| ML | Dynamic longitudinal moment load capacity | Nm |
| ML0 | Static longitudinal moment load capacity | Nm |
| 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 .
| 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 |
Diagrams/characteristic curves
Dimensions
| a) | Lubricating hole M8 x 1 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 | |
| B1 | mm | 43 | 53 | 60 | 78 | 87 | 108 | 132 |
| E3 | 56 mm ±0.15 | 64 mm ±0.15 | 76 mm ±0.15 | 94 mm ±0.15 | 106 mm ±0.15 | 124 mm ±0.15 | 160 mm ±0.2 | |
| E4 | 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 | |
| E5 | mm | 24 | 28 | 32 | 42 | 52 | 60 | 80 |
| E6 | mm | 34 | 42 | 50 | 64 | 72 | 90 | 108 |
| H | mm | 18 | 22 | 25 | 30 | 35 | 45 | 50 |
| Tolerance for H 1) | µm | + 8 - 16 | ||||||
| H2 | mm | 28 | 35 | 42 | 51 | 60 | 77 | 88 |
| H3 | mm | 10 | 12 | 13 | 15 | 16 | 20 | 10 |
| H4 | mm | 1.5 | 2.5 | 3.5 | 4 | 6 | ||
| L | mm | 76 | 84 | 104 | 130 | 152 | 176 | 224 |
| 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 | |
| N2 | mm | 16.5 | 21 | 24 | 29 | 34 | 44 | 49 |
| N3 | mm | 11 | 13 | 18 | 22 | 26 | 35 | |
| S2 2) | mm | 4.3 | 5.3 | 6.6 | 8.4 | 10.5 | 13.5 | |
| S3 | M5 | M6 | M8 | M10 | M12 | M16 | ||
| S4 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. |
Project planning information
Life expectancy calculation
Mounting
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
On-shaft relubrication on relubricatable Linear Bushing only until lubricant seeps out.
General mounting instructions
Maintenance
Lubrication
Certification
load errorSafety Instructions
load errorDownloads
 | Linear Bushings and Shafts Manual | R320103669 | 2005-07-01 | English, French, German, Italian | PDF | 3.6MB Product Groups: Linear Bushings and Shafts |
| Linear Bushings Catalog | R999000488 | 2015-02-01 | English | PDF | 14.9MB Product Groups: Linear Bushings and Shafts |
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