BOSCH REXROTH
R060102510
$119.33 USD
- BOSCH REXROTH
- Material:R060102510
- Model:KBM-25-D
Quantity in stock: 0
The Bosch Rexroth STD.LINEAR BUSHING KBM-25-D (R060102510) is a high-quality linear motion component designed for precision and durability in challenging environments. This standard metal linear bushing is closed with one seal, featuring a rugged all-metal design with a steel ball retainer that makes it suitable for harsh conditions and heavy contamination. The KBM-25-D is crafted to accommodate a shaft diameter of "d" and comes without wiper seals but includes integrated steel retaining rings to withstand higher temperatures, especially with larger shaft diameters. The bushing's many pockets serve as lubricant reservoirs, promoting extended lubrication intervals or even lifetime lubrication. The steel ball retainer also collects any dirt ingress to prevent jamming, ensuring reliable operation. Its hardened and ground outer sleeve along with multiple rows of balls provide smooth motion and high load capacities. The KBM-25-D has been designed to operate efficiently in woodworking, foundries, and cement plants due to its ability to handle contamination and maintain performance. With a maximum dynamic load capacity (Cmax) and minimum dynamic load capacity (Cmin), the bushing can handle significant forces during operation. These capacities are based on total travel distances of 100 km but can be adjusted if based on different travel lengths. The permissible ambient temperature range for this model extends from -30°C up to 80°C without seals, allowing for use in various climate conditions. This linear bushing's design ensures low friction coefficients under heavy loads, although these values may vary depending on the operational conditions such as load and lubrication type. It features an outer diameter (D), breakaway force, maximum permissible linear speed (vmax), as well as static load capacities both minimum (Cmin) and maximum (Cmax). Weighing in at 0.22 kg, the Bosch Rexroth STD.LINEAR BUSHING KBM-25-D offers a robust solution for linear motion requirements in industrial applications where reliability under harsh conditions is paramount.
Standard LB, closed, 25, with one seal
standard linear bushing
Standard (metal)
Closed
Shaft diameter d = 25
With one seal
Version: Standard
Unpacked Weight: 0.185 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 |
| 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 | 5 |
| 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 | 43.7 |
| Maximum dynamic load capacity Cmax | 2480 |
| Footnote permissible ambient temperature (min ... max) | Only unsealed linear bushings with steel ball retainers may be used at higher temperatures. 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 | 40 |
| Breakaway force | 14 |
| Maximum permissible linear speed vmax | 2.5 |
| Size D | 40 |
| Size D1 | 38.5 |
| Friction coefficient μ | 0,001 ... 0,004 |
| Size C h12 | 58 |
| Size C2 | 1.85 |
| Friction coefficient μ max. | 0.004 |
| Friction force | 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. |
| 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 | 1560 |
| Maximum static load capacity C0max | 2280 |
| Minimum dynamic load capacity Cmin | 2080 |
| Shaft diameter d | 25 |
| 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 | 0.185 |
| Size D1 with tolerance | 38.5 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.
Wiper seals for closed-type Super Linear Bushings and Standard Linear Bushings
Wiper seals for closed-type Super Linear Bushings and Standard Linear Bushings
Galvanized metal case Elastomer wiper sealCatalog
Instructions
Service
CAD data
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
Retaining rings, DIN 471, for Standard Linear Bushings
Catalog
Instructions
Service
Retaining rings, DIN 472, for Standard Linear Bushings
Retaining rings, DIN 472, for Standard Linear Bushings
Catalog
Instructions
Service
Locating screws for standard linear bushings
Locating screws for standard linear bushings
Locating screws are self-locking.Catalog
Instructions
Service