BOSCH REXROTH
R073004000
$452.66 USD
- BOSCH REXROTH
- Material:R073004000
- Model:KBSH-40
Quantity in stock: 0
The Bosch Rexroth SUPER LINEAR BUSH (R073004000) is a high-precision linear bushing designed for the smooth and accurate movement of heavy loads. This closed-type Super LB SH model is notable for its robust construction, which includes hardened steel load-bearing plates with precision-machined ball guide grooves and a steel load-bearing plate back. These features ensure maximum precision and contribute to the bushing's ability to handle dynamic loads effectively. The SUPER LINEAR BUSH has an impressive capacity for compensating shaft deflection and misalignment, maintaining high rigidity and dynamic load rating thanks to its multiple running tracks. Its design allows for high travel speeds up to a specified limit, which enhances its applicability in various motion scenarios. Equipped with a POM ball retainer and rolling bearing steel balls, the unit ensures smooth operation. It includes two metal holding rings that secure the entire assembly. While this model comes without seals, there is an option to integrate double-lipped wiper seals for additional protection against contaminants. This linear bushing can operate within a permissible ambient temperature range from a minimum specified value to a maximum of +80°C. The product has been engineered with attention to frictional properties; it features low friction coefficients under heavy load conditions, though it is noted that these can vary depending on factors such as load and lubrication. The Bosch Rexroth SUPER LINEAR BUSH boasts an outer diameter D of 62 mm and can accommodate shaft diameters up to 40 mm. It has been designed with specific radial clearances between the shaft and bore, ensuring optimal fitment and performance. Overall, this linear bushing is part of the Super SH series known for its durability, precision, and capability in handling heavy loads while allowing for significant speed and acceleration during operation. With a weight of approximately 1 kg, it strikes a balance between sturdiness and ease of integration into various applications requiring linear motion solutions.
Super LB SH, closed, 40, without seal
Super linear bushing
Super SH
Closed
Shaft diameter d = 40
Without seal
Unpacked Weight: 0.59 kg
| High-precision linear bushing for moving heavy loads |
| Hardened steel load-bearing plates with machined ball guide grooves and machined steel load-bearing plate back for maximum precision |
| Super H with even more running tracks for maximum dynamic load rating and rigidity |
| Compensates for shaft deflection and misalignment up to 30' |
| High travel speed (5 m/s) |
| Optional integrated, double-lipped wiper seals |
| POM ball retainer |
| Balls made of rolling bearing steel |
| Two metal holding rings |
| Data Sheet | Download Data Sheet |
| 2D CAD | Download 2D CAD |
| 2D CAD | Download 2D CAD |
| 3D CAD | Download 3D CAD |
| 3D CAD | Download 3D CAD |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Rows of balls | 12 |
| Series | Super SH |
| Footnote friction force FR | One wiper seal: Multiply value with factor 0.5 |
| Size C1 H13 | 60.3 |
| Footnote dynamic load capacity C | The load capacities apply for the main direction of loading. |
| Max. acceleration amax | 150 |
| Footnote friction coefficient μ | Friction coefficients of unsealed linear bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load. |
| Permissible ambient temperature | -20 °C ... +80 °C |
| Outer diameter D | 62 |
| Breakaway force | 12 |
| Maximum permissible linear speed vmax | 5 |
| Size D | 62 |
| Size D1 | 59 |
| Friction coefficient μ | 0,001 ... 0,004 |
| Footnote static load capacity C0 | The load capacities apply for the main direction of loading. |
| Static load rating C0 | 10400 |
| Size C h13 | 80 |
| Size C2 | 2.15 |
| Friction coefficient μ max. | 0.004 |
| Friction force | 5 |
| Friction coefficient μ min. | 0.001 |
| Productgroup ID | 17 |
| Permissible ambient temperature (max) | |
| Permissible ambient temperature (min) | |
| Friction force FR footnote 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. |
| Footnote breakaway force | One wiper seal: Multiply value with factor 0.5 |
| Size S3 | 3.5 |
| Shaft diameter d | 40 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | – Closed |
| Dynamic load capacity C | 13500 |
| Weight | 0.59 |
| Size D1 with tolerance | 59 mm |
| Radial clearance shaft h6/bore K7 | |
| Radial clearance shaft/bore h6/H7 | |
| Radial clearance shaft h6/bore M7 |
General technical data
|
Ø d |
mm |
20 | 25 | 30 | 40 | 50 |
|
amax |
m/s² |
150 | ||||
|
vmax |
m/s |
5 | ||||
|
m |
kg |
0.009 | 0.19 | 0.3 | 0.6 | 1.05 |
|
FR 1) 2) |
N |
2.5 | 3 | 4 | 5 | 6 |
|
Breakaway force 1) |
N |
5 | 7 | 9 | 12 | 15 |
|
μ 3) |
0.001 ... 0.004 | |||||
|
Rows of balls |
10 | 12 | ||||
|
Shaft radial clearance h6/bore H7 |
µm |
+ 43 + 11 |
+ 50 + 12 |
|||
|
Shaft radial clearance h6/bore K7 |
µm |
+ 25 - 7 |
+ 29 - 7 |
|||
|
Shaft radial clearance h6/bore M7 |
µm |
+ 18 - 14 |
+ 20 - 18 |
|||
|
Operating conditions |
||||||
|
Permissible ambient temperature (min ... max) |
-20 °C ... +80 °C | |||||
| 1) | One wiper seal: Multiply by a factor of 0.5. |
| 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) | Friction coefficients of unsealed Linear Bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load. |
Load capacities and load moments
|
Ød |
mm |
20 | 25 | 30 | 40 | 50 |
|
C 1) |
N |
3530 | 6190 | 6300 | 13500 | 22300 |
|
C0 1) |
N |
2530 | 4530 | 7180 | 10400 | 16800 |
| 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 |
|
μ |
Friction coefficient |
See "Technical data – Load direction factors" and the diagrams/characteristic curves section for exact values for the 4 main directions of loading.
Effect of load direction on load rating
| a) | Closed |
| b) | Open |
Main direction of loading
Load direction factors
The load ratings C and C0 apply for the load direction ρ = 0°. For all other load directions, the load ratings must be multiplied by the factors fr (dynamic load rating C) or fρ0 (static load rating C0).
Load direction factor Super SH
|
Shaft |
Load direction factor (dynamic load capacity) |
|||||
|
Ø d (mm) |
⇩ |
⇒⇐ |
⇑ |
⇩ |
⇒⇐ |
⇑ |
|
20 - 25 |
1 |
0,79 |
1 |
1 |
0,79 |
0,52 |
|
30 - 60 |
1 |
0,86 |
1 |
1 |
0,86 |
0,59 |
|
Load direction factor (static load capacity) |
||||||
|
20 - 25 |
1 |
0,68 |
1 |
1 |
0,68 |
0,50 |
|
30 - 60 |
1 |
0,83 |
1 |
1 |
0,83 |
0,55 |
|
|
|||||
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
The load rating is reduced under high load F. The dynamic load rating must be multiplied by the load factor f.F .
| 1) | fF = load factor |
Definition of dynamic load ratings
Installation dimensions/interchangeability
Super Linear Bushings H and SH have the same installation dimensions as Super Linear Bushings A and B as well as the standard Linear Bushings, but differ in terms of securing, radial clearance, load ratings and lubrication.
Sealing
Double protection through two-sided wiper seals:
Outer sealing lip prevents dirt from entering Inner sealing lip prevents lubricant from escaping
The wiper seals float inside closed Linear Bushings. This makes them perfect for any operating state. The open Linear Bushings are fully sealed with additional side seals along the shaft. All seals can be replaced.
With the closed super Linear Bushing H, the main direction of loading ρ = 0° (maximum load rating) is designated by a recess in the plastic cage (see enlargement).
Load direction factors
| a) | Closed |
| b) | Open |
Super Linear Bushings can be installed in any location. Choose a location that ensures that the main direction of loading is always ρ = 0°.
Dimensions
|
Ød |
mm |
20 | 25 | 30 | 40 | 50 | |
|
D |
mm |
32 | 40 | 47 | 62 | 75 | |
|
C |
h13 |
mm |
45 | 58 | 68 | 80 | 100 |
|
C1 |
H13 |
mm |
31.2 | 43.7 | 51.7 | 60.3 | 77.3 |
|
C2 |
mm |
1.6 | 1.85 | 2.15 | 2.65 | ||
|
D1 |
mm |
30.5 | 38.5 | 44.5 | 59 | 72 | |
|
K2 |
mm |
1.3 | 2 | 7 | 9.5 | 10 | |
|
K3 |
mm |
14.7 | 18.5 | 21 | 27.5 | 33.5 | |
|
S3 1) |
3 mm +0.1 | 3.5 mm +0.1 | 4.5 mm +0.1 | ||||
| 1) | Holes at center of dimension C |
Legend
|
Symbol |
Description |
Unit |
|
Ød |
Shaft diameters |
mm |
|
C/C0 |
Main direction of loading |
Initial lubrication
Linear bushings do not come with initial lubrication. Grease the Linear Bushings before use. Service life data is based on initial lubrication and relubricated Linear Bushings.
