BOSCH REXROTH
R074024030
$708.28 USD
- BOSCH REXROTH
- Material:R074024030
- Model:FLANGE LIN.BUSHING KBMF-40-DD-NR
Quantity in stock: 0
The Bosch Rexroth FLANGE LIN.BUSHING KBMF-40-DD-NR (R074024030) is an advanced linear motion component designed to facilitate smooth and precise movement in a range of applications. This flange linear bushing is constructed with a rugged all-metal design, featuring a steel ball retainer that can withstand harsh environments and heavy contamination. It is particularly suited for use in demanding sectors such as woodworking, foundries, and cement plants, and its stainless steel construction makes it ideal for medical, chemistry, and food industries. The KBMF-40-DD-NR model boasts several key features that enhance its performance and longevity. It comes equipped with two integrated wiper seals to prevent contamination and has numerous pockets that act as lubricant reservoirs. These design elements contribute to extended lubrication intervals or even allow for lifetime lubrication, reducing maintenance needs. The outer sleeve of the bushing is hardened and machined from stainless steel, ensuring durability and resistance to wear. This linear bushing has a shaft diameter of 40 mm and is engineered for high load capacities with minimal friction force. It offers a maximum dynamic load capacity (Cmax) that ensures reliable operation under varying conditions. The product's design also includes features to prevent jamming by collecting dirt within the pockets of the ball retainer. With an outer diameter of D1 and size V1 specifications, the KBMF-40-DD-NR provides robust performance with a breakaway force specified in its datasheet. It can handle maximum accelerations (amax) while operating within a permissible ambient temperature range of -20°C to +80°C. The Bosch Rexroth FLANGE LIN.BUSHING KBMF-40-DD-NR is part of the Standard metal series under Productgroup ID F1 and weighs approximately 0.5 kg. Its combination of high-grade materials, thoughtful engineering, and versatility makes it an essential component for any application requiring reliable linear motion under challenging conditions.
Flange LB, flange, 40, with two seals
Flange linear bushing
Standard (metal)
Flange
Shaft diameter d = 40
With two seals
Version: Rust-resistant
Unpacked Weight: 0.976 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 |
| For use in woodworking, foundries, cement plants |
| Stainless steel for the medical, chemistry and food industries |
| Integrated wiper seals |
| Pockets collect any dirt that may have worked its way in to prevent the linear bushing from jamming. |
| Hardened and machined outer sleeve made of stainless steel comparable to 1.4125 |
| Ball retainer made of stainless steel comparable to 1.4301, made of POM for shaft diameter 5 |
| Balls made of stainless steel comparable to 1.4125 |
| Flange and retaining rings for ball retainer made of stainless steel comparable to 1.4006 |
| 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 |
| Size V | 8.1 |
| Size L with tolerance | 80 mm ±0,3 |
| Rows of balls | 6 |
| 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 | 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. |
| Maximum dynamic load capacity Cmax | 1820 |
| 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 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Outer diameter D | 62 |
| Breakaway force | 24 |
| Maximum permissible linear speed vmax | 2.5 |
| Size D | 62 |
| Size D1 | 98 |
| Friction force | 8 |
| 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. |
| 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) | |
| Size S | 9 |
| Minimum static load capacity C0min | 3300 |
| Size L1 | 13 |
| Maximum static load capacity C0max | 4200 |
| Minimum dynamic load capacity Cmin | 1720 |
| Shaft diameter d | 40 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | F – Flange |
| Footnote minimum static load capacity C0min | |
| Size L | 80 |
| Size D2 | 80 |
| Footnote maximum static load capacity C0max | |
| Size B | 75 |
| Weight | 0.976 |
| Size D1 with tolerance | 98 mm |
General technical data
|
Ø d |
mm |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 |
|
amax |
m/s² |
100 | |||||||
|
vmax |
m/s |
2.5 | |||||||
|
m |
kg |
0.02 | 0.033 | 0.064 | 0.09 | 0.15 | 0.3 | 0.47 | 0.98 |
|
FR 1) |
N |
0.4 | 0.5 | 2 | 3 | 4 | 5 | 6 | 8 |
|
Breakaway force |
N |
0.8 | 1 | 6 | 9 | 12 | 14 | 18 | 24 |
|
Rows of balls |
4 | 5 | 6 | ||||||
|
Working bore diameter tolerance |
µm |
+ 8 0 |
+ 9 - 1 |
+ 11 - 1 |
+ 13 - 2 |
||||
|
Shaft radial clearance h6 2) |
µm |
+ 14 + 2 |
+ 15 + 2 |
+ 16 + 3 |
+ 17 + 2 |
+ 19 + 2 |
+ 20 + 3 |
+ 24 + 3 |
|
|
Operating conditions |
|||||||||
|
Permissible ambient temperature (min ... max) 3) |
-10 °C ... +80 °C | ||||||||
| 1) | 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. |
| 2) | Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7. |
| 3) | 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 |
|
Cmin |
N |
160 | 210 | 400 | 460 | 680 | 780 | 1250 | 1720 |
|
Cmax |
N |
185 | 240 | 460 | 530 | 800 | 830 | 1320 | 1820 |
|
C0min |
N |
180 | 235 | 420 | 440 | 860 | 1620 | 2000 | 3300 |
|
C0max |
N |
250 | 330 | 600 | 630 | 1250 | 2100 | 2500 | 4200 |
| 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 |
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 |
|
B |
mm |
22 | 25 | 32 | 35 | 42 | 50 | 60 | 75 |
|
D |
12 mm -0.013 | 16 mm -0.013 | 22 mm -0.016 | 26 mm -0.016 | 32 mm -0.019 | 40 mm -0.019 | 47 mm -0.019 | 62 mm -0.022 | |
|
D1 |
mm |
28 | 32 | 42 | 46 | 54 | 62 | 76 | 98 |
|
D2 |
mm |
20 | 24 | 32 | 36 | 43 | 51 | 62 | 80 |
|
L |
22 mm ±0.3 | 25 mm ±0.3 | 32 mm ±0.3 | 36 mm ±0.3 | 45 mm ±0.3 | 58 mm ±0.3 | 68 mm ±0.3 | 80 mm ±0.3 | |
|
L1 |
mm |
5 | 6 | 8 | 10 | 13 | |||
|
L1 |
5 mm | 6 mm | 8 mm | 10 mm | 13 mm | ||||
|
S |
mm |
3.5 | 4.5 | 5.5 | 6.6 | 9 | |||
|
V |
mm |
3.1 | 4.1 | 5.1 | 6.1 | 8.1 | |||
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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