BOSCH REXROTH
R061005000
$304.71 USD
- BOSCH REXROTH
- Material:R061005000
- Model:KBM-E-50
Quantity in stock: 0
The Bosch Rexroth STD.LINEAR BUSHING KBM-E-50 (R061005000) is a robust linear motion component designed for use in demanding environments such as woodworking, foundries, and cement plants. This standard linear bushing features an all-metal design with a steel ball retainer that ensures durability and resistance to harsh conditions and heavy contamination. The absence of seals enhances its suitability for high-temperature applications well above 100°C or under vacuum conditions. The KBM-E-50 is adjustable, allowing for fine-tuning of radial clearance to match the specific demands of the application. Its many pockets serve as lubricant reservoirs that facilitate extended lubrication intervals or even enable lubrication for life, reducing maintenance needs. The integrated wiper seals help to prevent contaminants from entering the bushing, ensuring smooth operation by collecting any dirt that may infiltrate the system. Constructed with a hardened and ground outer sleeve, this linear bushing can withstand significant wear and tear. The steel ball retainer is designed for shaft diameters of 5 mm and higher, while diameters of 3 mm and 4 mm feature a plastic retainer made from PA (Polyamide). The rolling bearing steel balls are arranged in multiple rows within the retainer to provide stable movement. The KBM-E-50 has a size E designation with an outer diameter D of 50 mm. It offers a maximum dynamic load capacity (Cmax) indicating its ability to handle heavy loads efficiently over its service life. With a friction coefficient ranging from 0.01 to 0.02, it maintains low frictional resistance under load but may vary depending on conditions such as speed and lubrication. This product has been engineered without compromise on quality or performance, ensuring reliable linear guidance in industrial applications where precision and robustness are paramount. It exemplifies Bosch Rexroth's commitment to providing high-quality components for sophisticated mechanical systems.
Standard LB, adjustable, 50, without seal
"Standard linear bushing
Standard (metal)
Adjustable
Shaft diameter d = 50
Without seal
Design: normal"
Unpacked Weight: 1.081 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 |
| Seal-free and with steel ball retainers for temperatures well above 80°C or under vacuum |
| Radial clearance adjustable |
| Integrated wiper seals for high contamination |
| 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 |
| Steel ball retainer (shaft diameters 5 and 8 with plastic retainer made of PA) |
| Balls made of rolling bearing steel |
| 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 | 6 |
| Series | Standard (metal) |
| Footnote friction force FR | One wiper seal: Multiply value with factor 0.5 |
| Size C1 H13 | 77.3 |
| Maximum dynamic load capacity Cmax | 8740 |
| 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 | 50 |
| 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 |
| Size E | 2 |
| Outer diameter D | 75 |
| Breakaway force | 30 |
| Maximum permissible linear speed vmax | 2 |
| Size D | 75 |
| Size D1 | 71 |
| Friction coefficient μ | 0,001 ... 0,004 |
| Size C h12 | 100 |
| Size C2 | 2.65 |
| Friction coefficient μ max. | 0.004 |
| Friction force | 10 |
| 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 | 6470 |
| Maximum static load capacity C0max | 8280 |
| Minimum dynamic load capacity Cmin | 8260 |
| Shaft diameter d | 50 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | E – Adjustable |
| Footnote minimum static load capacity C0min | |
| Footnote maximum static load capacity C0max | |
| Weight | 1.081 |
| Size D1 with tolerance | 71 mm |
| Radial clearance shaft h6/bore K7 | |
| Radial clearance shaft/bore h6/H7 |
General technical data
|
Ø d |
mm |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 | 50 | 60 | 80 |
|
amax |
m/s² |
100 | 50 | |||||||||
|
vmax |
m/s |
2.5 | 2 | |||||||||
|
m |
kg |
0.01 | 0.02 | 0.04 | 0.05 | 0.1 | 0.19 | 0.32 | 0.62 | 1.14 | 2.11 | 4.7 |
|
FR 1) 2) |
N |
0.4 | 0.5 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 |
|
Breakaway force 1) |
N |
0.8 | 1 | 6 | 9 | 12 | 14 | 18 | 24 | 30 | 36 | 45 |
|
μ 3) |
0.001 ... 0.004 | |||||||||||
|
Rows of balls |
4 | 5 | 6 | |||||||||
|
Shaft radial clearance h6/bore H7 |
µm |
+ 34 + 11 |
+ 36 + 13 |
+ 41 + 14 |
+ 43 + 14 |
+ 49 + 16 |
+ 50 + 17 |
+ 60 + 20 |
+ 68 + 22 |
+ 71 + 24 |
||
|
Shaft radial clearance h6/bore K7 |
µm |
+ 22 - 1 |
+ 24 - 1 |
+ 26 - 1 |
+ 28 - 1 |
+ 31 - 2 |
+ 32 - 1 |
+ 39 - 1 |
+ 43 - 1 |
+ 46 - 1 |
||
|
Operating conditions |
||||||||||||
|
Permissible ambient temperature (min ... max) 4) |
-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) | 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 |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 | 50 | 60 | 80 |
|
Cmin |
N |
180 | 320 | 420 | 580 | 1170 | 2080 | 2820 | 5170 | 8260 | 11500 | 21000 |
|
Cmax |
N |
210 | 370 | 480 | 670 | 1390 | 2480 | 2980 | 5480 | 8740 | 12100 | 22200 |
|
C0min |
N |
140 | 240 | 280 | 440 | 860 | 1560 | 2230 | 3810 | 6470 | 9160 | 16300 |
|
C0max |
N |
200 | 330 | 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 |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 | 50 | 60 | 80 | |
|
D |
mm |
12 | 16 | 22 | 26 | 32 | 40 | 47 | 62 | 75 | 90 | 120 | |
|
C |
h12 |
mm |
22 | 25 | 32 | 36 | 45 | 58 | 68 | 80 | 100 | 125 | 165 |
|
C1 |
H13 |
mm |
14.2 | 16.2 | 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 | 20.5 | 24.9 | 30.5 | 38.5 | 44.5 | 58 | 71 | 85 | 114 | |
|
E |
mm |
1.5 | 2 | ||||||||||
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.
Metal cases for Super Linear Bushings and standard Linear Bushings
Metal cases for Super Linear Bushings and standard Linear Bushings
Galvanized steelCatalog
Instructions
Service
CAD data
Retaining rings, DIN 471, for Standard Linear Bushings
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Instructions
Service
Retaining rings, DIN 472, for Standard Linear Bushings
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Instructions
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