BOSCH REXROTH
R060201210
- BOSCH REXROTH
- Material:R060201210
- Model:KBM-12-DD
Quantity in stock: 0
The Bosch Rexroth STD.LINEAR BUSHING KBM-12-DD (R060201210) is a high-quality standard linear bushing designed for demanding applications. This closed-type bearing features a rugged all-metal design with a steel ball retainer, making it suitable for harsh environments and heavy contamination scenarios such as those encountered in woodworking, foundries, and cement plants. The KBM-12-DD is engineered to withstand the rigors of industrial use, boasting many pockets that act as lubricant reservoirs, which can lead to extended lubrication intervals or even lubrication for life. With its hardened and ground outer sleeve and steel ball retainer, this linear bushing ensures smooth motion and enhanced durability. It is designed to accommodate self-supporting shafts with a diameter of 12 mm. The presence of two seals helps in preventing dirt ingress and avoids jamming of the bushing, thereby maintaining operational reliability. The KBM-12-DD does not include wiper seals but comes with integrated steel retaining rings that allow for higher temperature operation with shaft diameters of 12 mm and above. This linear bushing has been meticulously crafted to offer low friction coefficients ranging from 0.01 to 0.25 under various load conditions, with a maximum friction coefficient of 0.3. Its dynamic load capacities are impressive, ensuring it can handle significant loads over its service life which is calculated based on a total travel distance of up to 100 km. The Bosch Rexroth STD.LINEAR BUSHING KBM-12-DD is an exemplary component in the realm of linear motion technology, delivering robust performance in industrial settings where reliability and longevity are paramount. With an outer diameter D of 22 mm and weight of only 0.08 kg, it offers a compact yet powerful solution for linear guidance systems requiring precision movement under challenging conditions.
Standard LB, closed, 12, with two seals
Standard linear bushing
Standard (metal)
Closed
Shaft diameter d = 12
With two seals
Version: Standard
Unpacked Weight: 0.03747 kg
| Rugged all-metal design with steel ball retainer for harsh environments and heavy contamination |
| Many pockets acting as lubricant reservoirs for extended lubrication intervals or lubrication for life |
| Steel ball retainer (shaft diameters 3, 4 and 10 with plastic strip made of POM and shaft diameters 5 and 8 made of PA) |
| Closed, for self-supporting shafts |
| Balls made of rolling bearing steel |
| For use in woodworking, foundries, cement plants |
| Pockets collect any dirt that may have worked its way in to prevent the linear bushing from jamming. |
| No wiper seals, come with integrated steel retaining rings; higher temperatures allowed with shaft diameters 12 and higher |
| Hardened and ground outer sleeve |
| Data Sheet | Download Data Sheet |
| 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 | 4 |
| Footnote shaft radial clearance h6 | Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7. |
| Series | Standard (metal) |
| Footnote friction force FR | One wiper seal: Multiply value with factor 0.5 |
| Size C1 H13 | 22.6 |
| Maximum dynamic load capacity Cmax | 480 |
| Footnote permissible ambient temperature (min ... max) | Higher temperatures are only admissible at linear bushings without wiper seals with ball retainers made of steel. Make allowance for reductions in load capacity. |
| Max. acceleration amax | 100 |
| 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 | 22 |
| Breakaway force | 6 |
| Maximum permissible linear speed vmax | 2.5 |
| Size D | 22 |
| Size D1 | 20.5 |
| Friction coefficient μ | 0,001 ... 0,004 |
| Size C h12 | 32 |
| Size C2 | 1.3 |
| Friction coefficient μ max. | 0.004 |
| Friction force | 2 |
| 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. |
| 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 |
| Minimum static load capacity C0min | 280 |
| Maximum static load capacity C0max | 400 |
| Minimum dynamic load capacity Cmin | 420 |
| 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 | |
| Footnote maximum static load capacity C0max | |
| Weight | 0.03747 |
| Size D1 with tolerance | 20.5 mm |
General technical data
|
Ø d |
mm |
3 | 4 | 5 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 40 | 50 | 60 | 80 |
|
amax |
m/s² |
100 | 50 | ||||||||||||
|
vmax |
m/s |
2.5 | 2 | ||||||||||||
|
m |
kg |
0.001 | 0.002 | 0.01 | 0.02 | 0.03 | 0.04 | 0.05 | 0.1 | 0.19 | 0.32 | 0.62 | 1.14 | 2.11 | 4.7 |
|
FR |
N |
- | 0.4 1) 2) | 0.5 1) 2) | 1 1) 2) | 2 1) 2) | 3 1) 2) | 4 1) 2) | 5 1) 2) | 6 1) 2) | 8 1) 2) | 10 1) 2) | 12 1) 2) | 15 1) 2) | |
|
Breakaway force |
N |
- | 0.8 1) | 1 1) | 2 1) | 6 1) | 9 1) | 12 1) | 14 1) | 18 1) | 24 1) | 30 1) | 36 1) | 45 1) | |
|
μ 3) |
0.001 ... 0.004 | ||||||||||||||
|
Rows of balls |
4 | 5 | 6 | ||||||||||||
|
Working bore diameter tolerance |
µm |
+ 8 0 |
+ 11 + 1 |
+ 12 + 2 |
+ 8 0 |
+ 12 + 2 |
+ 14 + 2 |
+ 16 + 2 |
+ 19 + 2 |
+ 24 + 2 |
|||||
|
Shaft radial clearance h6 4) |
µm |
+ 12 + 2 |
+ 14 + 2 |
+ 16 + 4 |
+ 18 + 5 |
+ 20 + 5 |
+ 22 + 5 |
+ 23 + 6 |
+ 25 + 6 |
+ 30 + 7 |
+ 33 + 7 |
+ 37 + 8 |
|||
|
Operating conditions |
|||||||||||||||
|
Permissible ambient temperature (min ... max) 5) |
-10 °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. |
| 4) | Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7. |
| 5) | Only unsealed Linear Bushings with steel ball retainers may be used at higher temperatures. Make allowance for reductions in load capacity. |
Load capacities and load moments
|
Ød |
mm |
3 | 4 | 5 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 40 | 50 | 60 | 80 |
|
Cmin |
N |
55 | 70 | 180 | 320 | 300 | 420 | 580 | 1170 | 2080 | 2820 | 5170 | 8260 | 11500 | 21000 |
|
Cmax |
N |
65 | 80 | 210 | 370 | 350 | 480 | 670 | 1390 | 2480 | 2980 | 5480 | 8740 | 12100 | 22200 |
|
C0min |
N |
45 | 60 | 140 | 240 | 260 | 280 | 440 | 860 | 1560 | 2230 | 3810 | 6470 | 9160 | 16300 |
|
C0max |
N |
65 | 85 | 200 | 330 | 370 | 400 | 620 | 1250 | 2280 | 2860 | 4880 | 8280 | 11730 | 20850 |
| 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 |
Impact of load direction on load rating of closed Linear Bushings
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.
Definition of dynamic load ratings
Installation dimensions/interchangeability
Standard Linear Bushings have the same installation dimensions as super Linear Bushings. They are interchangeable, differ however in terms of securing, radial clearance, load ratings and lubrication.
Sealing
Standard Linear Bushings come with a wiper seal with shaft diameters of 5 and higher. Open standard Linear Bushings with shaft diameters 20 to 80 can also come fully sealed (with longitudinal seal; increased friction).
Dimensions
|
Ød |
mm |
3 | 4 | 5 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 40 | 50 | 60 | 80 | |
|
D |
mm |
7 | 8 | 12 | 16 | 19 | 22 | 26 | 32 | 40 | 47 | 62 | 75 | 90 | 120 | |
|
C |
h12 |
mm |
10 | 12 | 22 | 25 | 29 | 32 | 36 | 45 | 58 | 68 | 80 | 100 | 125 | 165 |
|
C1 |
H13 |
mm |
- | 14.2 | 16.2 | 21.6 | 22.6 | 24.6 | 31.2 | 43.7 | 51.7 | 60.3 | 77.3 | 101.3 | 133.3 | |
|
C2 |
mm |
- | 1.1 | 1.3 | 1.6 | 1.85 | 2.15 | 2.65 | 3.15 | 4.15 | ||||||
|
D1 |
mm |
- | 11.1 | 14.7 | 18 | 20.5 | 24.9 | 30.5 | 38.5 | 44.5 | 58 | 71 | 85 | 114 | ||
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.
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