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Functional Module FMB Calculation of Rexroth Linear Module (Fundamentals of Calculation)
Functional Module FMB Calculation of Rexroth Linear Module (Fundamentals of Calculation)
Product details
Computing Fundamentals
*Permissible load
The service life of linear guidance system
Computing Fundamentals
The correct size definition and application requirements require a structured consideration of the entire powertrain.
The basic components of the powertrain constitute the configuration, which includes linear systems and transmission components (reducers or directly without transmission components)
In this case, the motor can be ordered according to the product catalog.
*Permissible load
When selecting a linear system, it is necessary to consider the maximum allowable load and force limits, as shown in the chapter "Technical Data". The values saved here depend on the system,
These limits not only come from the rated load of the bearing position, but also include limits that depend on the structure or material.
Conditions for combined load
The service life of linear guidance system
The service life of the rolling bearings included in the linear system can be determined based on the following formula.
Usually, the position of rolling bearings related to service life in linear systems with toothed belt transmission mechanisms is a linear guiding system.
Determine the service life data calculated by the linear system based on the service life value of the linear guidance system.The linear guidance system of a linear system must withstand loads and possible processing forces.
Combination equivalent bearing load of guide rail
Rated service life (unit: meter)
|
Terms of Use |
running speed |
Load factor fw |
|
No impact load and vibration |
v < 0.25 m/s |
1.0 ... 1.2 |
|
Low impact load and vibration |
0.25 m/s ≤ v < 1 m/s |
1.2 ... 1.5 |
|
Moderate impact load and vibration |
1 m/s≤v < 2 m/s |
1.5 ... 2.0 |
|
Strong impact load and vibration |
v≥2 m/s |
2.0 ... 3.5 |
Rated service life (unit: hour)
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