BOSCH REXROTH
R066801200
$28.43 USD
- BOSCH REXROTH
- Material:R066801200
- Model:SEGMT.LINEAR BUSH. KBSE-12
Quantity in stock: 1
The Bosch Rexroth SEGMT.LINEAR BUSH. KBSE-12 (R066801200) is a high-quality segmental linear bushing designed for linear motion applications. This closed-type bushing is engineered without a seal, making it suitable for standard applications where separate wiper seals are optional, depending on the environmental conditions and requirements of the application. The KBSE-12 features hardened segmental load-bearing plates and balls constructed from rolling bearing steel, ensuring durability and a smooth motion. With a shaft diameter of 12mm, this linear bushing is crafted to provide reliable performance in various settings. The ball retainer and retaining rings are made from PA (polyamide), which contributes to the unit's robustness and longevity. It boasts an impressive maximum dynamic load capacity (Cmax), with specific values available upon evaluation of travel distance, as longer travel increases the load capacity. The Bosch Rexroth KBSE-12 operates efficiently within a permissible ambient temperature range of -30°C to 80°C. Its design allows for maximum acceleration (amax) and speed (vmax) within its operational limits, ensuring that it can handle the demands of various dynamic applications. Furthermore, the product has been tested for friction force and coefficient under different conditions, providing users with predictable performance metrics. This linear bushing's outer diameter is finely tuned for compatibility with corresponding components, while its breakaway force ensures stability at startup. It also offers a range of static and dynamic load capacities (Cmin and Cmax), guaranteeing that it can meet both minimum and maximum requirements for static and dynamic stresses. Weighing in at just 0.04kg, the Bosch Rexroth SEGMT.LINEAR BUSH. KBSE-12 provides an efficient solution without adding significant weight to your assembly. Its radial clearance specifications are meticulously defined to ensure precise fitment with compatible shafts, making this bushing an ideal choice for those seeking reliable linear guidance with high-quality standards synonymous with Bosch Rexroth engineering.
Segmental LB, closed, 12, without seal, standard
Segmental linear bushing
Closed
Shaft diameter d = 12
Without seal
Version: Standard
Unpacked Weight: 0.01583 kg
Designed especially for general requirements |
Separate wiper seals optional |
Hardened segmental load bearing plates |
Balls made of rolling bearing steel |
Ball retainer and retaining rings made of PA 11 |
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 |
Friction force | 1.5 |
Footnote minimum dynamic load capacity Cmin | The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26. |
Friction coefficient μ min. | 0.001 |
Footnote maximum dynamic load capacity Cmax | The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26. |
Rows of balls | 5 |
Series | Segment |
Footnote friction force FR | Frictional drags generated by linear bushings with seals on both ends when not under radial load. This depends on speed and lubrication. |
Productgroup ID | 17 |
Maximum dynamic load capacity Cmax | 570 |
Permissible ambient temperature (max) | |
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 | -10 °C ... +80 °C |
Outer diameter D | 20 |
Breakaway force | 3 |
Permissible ambient temperature (min) | |
Maximum permissible linear speed vmax | 3 |
Size C js14 | 24 |
Size D | 20 |
Friction coefficient μ | 0,001 ... 0,004 |
Minimum static load capacity C0min | 420 |
Maximum static load capacity C0max | 620 |
Minimum dynamic load capacity Cmin | 480 |
Shaft diameter d | 12 |
Linear guide type | Linear bushing and shaft |
Filter for linear bushings and shafts | Linear bushings |
Format of linear bushings | – Closed |
Footnote minimum static load capacity C0min | |
Friction coefficient μ max. | 0.004 |
Footnote maximum static load capacity C0max | |
Weight | 0.01583 |
Size D1 with tolerance | |
Radial clearance shaft h6/bore K7 | |
Radial clearance shaft/bore h6/H7 |
General technical data
Ø d |
mm |
12 | 16 | 20 | 25 | 30 | 40 |
amax |
m/s² |
150 | |||||
vmax |
m/s |
3 | |||||
m |
kg |
0.013 | 0.02 | 0.031 | 0.057 | 0.096 | 0.17 |
FR 1) |
N |
1.5 | 2 | 2.5 | 3 | 4 | 5 |
Breakaway force |
N |
3 | 4.5 | 5 | 7 | 9 | 12 |
μ 2) |
0.001 ... 0.004 | ||||||
Rows of balls |
5 | 6 | |||||
Shaft radial clearance h6/bore H7 |
µm |
+ 32 0 |
+ 33 - 1 |
+ 36 0 |
+ 42 - 1 |
||
Shaft radial clearance h6/bore K7 |
µm |
+ 17 - 15 |
+ 18 - 16 |
+ 18 - 18 |
+ 21 - 22 |
||
Operating conditions |
|||||||
Permissible ambient temperature (min ... max) |
-10 °C ... +80 °C |
1) | Frictional drags generated by Linear Bushings with seals on both ends when not under radial load. This depends on speed and lubrication. |
2) | 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 |
12 | 16 | 20 | 25 | 30 | 40 |
Cmin |
N |
480 | 720 | 1020 | 1630 | 2390 | 3870 |
Cmax |
N |
570 | 860 | 1080 | 1730 | 2530 | 4100 |
C0min |
N |
420 | 620 | 870 | 1360 | 1960 | 3270 |
C0max |
N |
620 | 910 | 1120 | 1750 | 2510 | 4180 |
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 |
Cmax |
Maximum dynamic load rating |
N |
Cmin |
Minimum dynamic load rating |
N |
C0max |
Maximum static load rating |
N |
C0min |
Minimum static load rating |
N |
FR |
Friction force |
N |
m |
Mass |
kg |
vmax |
Maximum permissible speed |
m/s |
μ |
Friction coefficient |
Effect of load direction on load rating
The listed load ratings should be chosen depending on installation in minimum or maximum position and should be based on the calculations. If the load direction is clearly defined and the Linear Bushings can be installed in maximum position, the load ratings Cmax. (dynamic load rating) and C0 max (static load rating) can be used. If aligned installation is not possible or the load direction is not defined, the minimum load ratings must be used.
Reduced load capacity with short stroke
In case of a short stroke, the service life of the shaft is less than that of the segmental Linear Bushing. The load ratings C specified in the tables must therefore be multiplied by the factor f.s .
Definition of dynamic load ratings
Dimensions
Ød |
mm |
12 | 16 | 20 | 25 | 30 | 40 | |
D |
mm |
20 | 25 | 30 | 37 | 44 | 56 | |
C |
js14 |
mm |
24 | 28 | 30 | 37 | 44 | 56 |
Installation
Install the segmental Linear Bushings using an arbor press (see General Installation Instructions). In order to prevent contamination in the segmental Linear Bushing, we recommend making sure that a segmental load bearing plate is covered by the slot when installing in slotted receivers.
Fixation
a) Secured with wiper seal
b) Secured with metal case
General mounting instructions
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.
Wiper seals for Segmental Linear Bushings
Wiper seals for Segmental Linear Bushings
Metal case Elastomer wiper seal For axial securement.Catalog
Instructions
Service
CAD data
Metal cases for Segmental Linear Bushings
Metal cases for Segmental Linear Bushings
Normal (galvanized) For axial securement.Catalog
Instructions
Service
CAD data