Product preselection
In the preselection of a driven linear unit, attention must be paid to the combination of the mass to be moved and the velocity. The bearing arrangement of the toothed belt return unit must also be considered.
Toothed belt return units
The return unit for the toothed belt can restrict the rating life of the actuator. Values for horizontal mounting, see table. For a different mounting position, please consult the Schaeffler engineering service.
Basic rating life of bearing arrangement of toothed belt return units in horizontal mounting
Actuator | Basic rating life** | At maximum velocity** | |||
|---|---|---|---|---|---|
LS | Lh | ||||
km | h | m/s | |||
MLF32..-ZR | ＞ | 200 000 | ＞ | 20 000 | 3 |
MLFI200..-3ZR | |||||
MDKUSE25..-3ZR | 20 000 | ||||
MDKUVE25..-3ZR | |||||
MKUVE25..-ZR | 113 000 | 10 400 | |||
MKUSE25..-ZR | |||||
MLF52..-ZR | 152 000 | 14 000 | |||
MLFI25..-ZR | 112 000 | 10 500 | |||
MDKUVE15..-ZR |
| 95 000 |
| 9 000 | |
MDKUSE15..-3ZR MLFI140..-3ZR | |||||
**Based on the stroke length of the carriage with horizontal mounting.
**Mean velocity over the total travel cycle.
Mass and velocity
The mass/velocity diagrams can be used for preselection of suitable actuators, starting ➤ Figure.
The curves are valid under the following conditions:
- a basic rating life of 20 000 h
- point type mass
- loading points of the forces at the centre of the carriage. As a result, torques resulting from the distance between the centre of gravity and the guidance system are not taken into consideration
- pure vertical load with a horizontal mounting position
- acceleration of 5 m/s2.
ATTENTION
The only mass/velocity combinations permissible are those that lie on or vertically below the curves and do not exceed the maximum permissible velocity vmax.
Loading points that are offset, and the resulting combined loads, will drastically reduce the loads that can be supported if the same rating life is to be achieved. If a loading point is offset, it is therefore recommended that the values should be reduced to 30% of the mass/velocity combinations in the diagrams. In the case of the clamping actuators MKLF..-ZR and MKKUSE20..-ZR, the mass applies to one carriage.
Actuators with external track roller guidance system and toothed belt drive
Mass/velocity diagram
Horizontal mounting position
MLF32..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MLF32..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MLF52..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MLF52..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MKLF32..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MKLF32..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MKLF52..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MKLF52..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Actuators with internal track roller guidance system and toothed belt drive
Mass/velocity diagram
Horizontal mounting position
MLFI25..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MLFI25..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MLFI34..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MLFI34..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MLFI50..-C-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MLFI50..-C-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MLFI140..-3ZR · MLFI200..-3ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MLFI140..-3ZR · MLFI200..-3ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Actuators with monorail guidance system and toothed belt drive
Mass/velocity diagram
Horizontal mounting position
MKUVE15..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MKUVE15..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MKUVE20..-C-ZR · MKUVE20..-C-LN-ZR · MKUSE25..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MKUVE20..-C-ZR · MKUVE20..-C-LN-ZR · MKUSE25..-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MDKUVE15..-3ZR · MDKUVE25..-3ZR · MDKUSE25..-3ZR · MDKUVE35-500-3ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MDKUVE15..-3ZR · MDKUVE25..-3ZR · MDKUSE25..-3ZR · MDKUVE35-500-3ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MKKUSE20-155-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MKKUSE20-155-ZR
v = velocity · m = mass · vmax = maximum permissible velocity
Actuators with monorail guidance system and ball screw drive
Mass/velocity diagram
Horizontal mounting position
MKUVE15..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MKUVE15..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MKUVE20..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MKUVE20..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MKUSE25..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MKUSE25..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MDKUVE15..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MDKUVE15-240-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MDKUVE25..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MDKUVE25..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MDKUSE25..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MDKUSE25..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MDKUVE35..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Vertical mounting position
MDKUVE35..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity · P = pitch
Mass/velocity diagram
Horizontal mounting position
MTKUSE25..-ZS
v = velocity · m = mass · vmax = maximum permissible velocity
Compact actuators with monorail guidance system and ball screw drive
Mass/velocity diagram
Horizontal mounting position
MKUVS32..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MKUVS32..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
MSDKUVE15..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
MSDKUVE15..-KGT
v = velocity · m = mass · vmax = maximum permissible velocity
Linear tables with closed and open shaft guidance system
and without drive
Mass/velocity diagram
Horizontal mounting position
LTS12 · LTS16 · LTS20
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTE12 · LTE16 · LTE20 · LTS12 · LTS16 · LTS20
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
LTS25 · LTS30 · LTS40 · LTS50
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTE25 · LTE30 · LTE40 · LTE50 · LTS25 · LTS30 · LTS40 · LTS50
v = velocity · m = mass · vmax = maximum permissible velocity
Linear tables with open shaft guidance system and ball screw drive
Mass/velocity diagram
Horizontal mounting position
LTS16-12 · LTS20-16
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTE16-12 · LTE20-16 · LTS16-12 · LTS20-16
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
LTS25-16 · LTS30-20
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTE25-16 · LTE30-20 · LTS25-16 · LTS30-20
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
LTS40-25 · LTS40-32 · LTS50-20 · LTS50-32
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTE40-25 · LTE40-32 · LTE50-25 · LTE50-32 · LTS40-25 · LTS40-32 · LTS50-20 · LTS50-32
v = velocity · m = mass · vmax = maximum permissible velocity
Linear tables with open shaft guidance system and trapezoidal screw drive
Mass/velocity diagram
Horizontal mounting position
LTS..-TGT
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTS..-TGT
v = velocity · m = mass · vmax = maximum permissible velocity
High precision linear tables with linear recirculating ball bearing and guideway assemblies and ball screw drive
Mass/velocity diagram
Horizontal mounting position
LTP15 · LTPG15
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTP15 · LTPG15
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Horizontal mounting position
LTP25 · LTPG25
v = velocity · m = mass · vmax = maximum permissible velocity
Mass/velocity diagram
Vertical mounting position
LTP25 · LTPG25
v = velocity · m = mass · vmax = maximum permissible velocity