BOSCH REXROTH
R073213040
$207.67 USD
- BOSCH REXROTH
- Material:R073213040
- Model:KBH-30-D
Quantity in stock: 0
The Bosch Rexroth SUPER LINEAR BUSH (R073213040) is a high-precision linear bushing designed to facilitate the movement of heavy loads with maximum accuracy. This closed-type Super H series bushing features a shaft diameter of 30mm and is equipped with a single seal for protection against contaminants. It boasts hardened steel load-bearing plates with meticulously machined ball guide grooves, alongside a machined steel load-bearing plate back, ensuring unparalleled precision. The bushing is capable of compensating for shaft deflection and misalignment, offering a high travel speed to meet demanding applications. The integration of optional double-lipped wiper seals can be selected to enhance protection against debris. The POM ball retainer within the assembly ensures smooth ball circulation, while the balls themselves are crafted from rolling bearing steel for durability and performance. With two metal holding rings securing the configuration, this linear bushing provides multiple rows of balls that contribute to its robust dynamic load capacity. The product can withstand a maximum acceleration and operates effectively within an ambient temperature range of -30°C to +80°C. The SUPER LINEAR BUSH also features low friction coefficients, which vary depending on load conditions but are optimized for heavy loads. Its static load rating is indicative of its ability to handle substantial stationary forces without compromising on performance. Weighing in at just 0.45kg, this Bosch Rexroth linear bushing offers versatility without adding significant weight to the assembly. Its radial clearance specifications are available in various classes (K, H, M), allowing users to select the appropriate fit based on their application requirements. Overall, this model stands out for its ability to deliver smooth linear motion under challenging conditions while maintaining high levels of precision and reliability.
Super LB H, closed, 30, with one seal
Super linear bushing
Super H
Closed
Shaft diameter d = 30
With one seal
Unpacked Weight: 0.207 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 |
| With more tracks than super A |
| 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 | 7 |
| Series | Super H |
| Footnote friction force FR | One wiper seal: Multiply value with factor 0.5 |
| Size C1 H13 | 51.7 |
| 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 | 47 |
| Breakaway force | 9 |
| Maximum permissible linear speed vmax | 5 |
| Size D | 47 |
| Size D1 | 44.5 |
| 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 | 5230 |
| Size C h13 | 68 |
| Size C2 | 1.85 |
| Friction coefficient μ max. | 0.004 |
| Friction force | 4 |
| Friction coefficient μ min. | 0.001 |
| Productgroup ID | 17 |
| Permissible ambient temperature (max) | |
| Size S1 | 3.5 |
| 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 |
| Shaft diameter d | 30 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | – Closed |
| Dynamic load capacity C | 6300 |
| Size S2 | 3 |
| Weight | 0.207 |
| Size D1 with tolerance | 44.5 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 | 60 |
|
amax |
m/s² |
150 | |||||
|
vmax |
m/s |
5 | |||||
|
m |
kg |
0.07 | 0.15 | 0.21 | 0.4 | 0.7 | 1.2 |
|
FR 1) 2) |
N |
2.5 | 3 | 4 | 5 | 6 | 7 |
|
Breakaway force 1) |
N |
5 | 7 | 9 | 12 | 15 | 18 |
|
μ 3) |
0.001 ... 0.004 | ||||||
|
Rows of balls |
7 | ||||||
|
Shaft radial clearance h6/bore H7 |
µm |
+ 43 + 11 |
+ 50 + 12 |
+ 56 + 14 |
|||
|
Shaft radial clearance h6/bore K7 |
µm |
+ 25 - 7 |
+ 29 - 7 |
+ 31 - 11 |
|||
|
Shaft radial clearance h6/bore M7 |
µm |
+ 18 - 14 |
+ 20 - 18 |
+ 21 - 21 |
|||
|
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 | 60 |
|
C 1) |
N |
2520 | 4430 | 6300 | 9680 | 16000 | 23500 |
|
C0 1) |
N |
1880 | 3360 | 5230 | 7600 | 12200 | 18700 |
| 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 H
|
Shaft |
Load direction factor (dynamic load capacity) |
|||||
|
Ø d (mm) |
⇩ |
⇒⇐ |
⇑ |
⇩ |
⇒⇐ |
⇑ |
|
20 - 25 |
1 |
0,80 |
0,98 |
1 |
0,80 |
0,67 |
|
30 - 60 |
1 |
0,70 |
0,91 |
1 |
0,70 |
0,62 |
|
Load direction factor (static load capacity) |
||||||
|
20 - 25 |
1 |
0,70 |
0,87 |
1 |
0,70 |
0,67 |
|
30 - 60 |
1 |
0,62 |
0,80 |
1 |
0,62 |
0,61 |
|
|
|||||
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.
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 | 60 | |
|
D |
mm |
32 | 40 | 47 | 62 | 75 | 90 | |
|
C |
h13 |
mm |
45 | 58 | 68 | 80 | 100 | 125 |
|
C1 |
H13 |
mm |
31.2 | 43.7 | 51.7 | 60.3 | 77.3 | 101.3 |
|
C2 |
mm |
1.6 | 1.85 | 2.15 | 2.65 | 3.15 | ||
|
D1 |
mm |
30.5 | 38.5 | 44.5 | 59 | 72 | 86.5 | |
|
K1 |
mm |
- | 1.5 | 2 | 1.5 | 2.5 | - | |
|
S1 1) |
3 mm +0.1 | 3.5 mm +0.1 | 4.5 mm +0.1 | 6 mm +0.1 | ||||
|
S2 |
- | 3 mm +0.1 1) | 5 mm +0.1 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.
Hollow screw
Hollow screw
For relubricating and securing Super Linear Bushing H (closed) via locating hole S.1Catalog
Instructions
Service