Explosion hazard and danger to life, or sub‐
stantial property damage!
WARNING
The totality of a motor-machine combination must comply with the specifica‐
tions for explosion protection according to Directive 2014/34/EU.
Please observe the notes within the product documentation of the used com‐
ponents when projecting and during operation.
Gearboxes with approvals for use in hazardous areas according to Directive
2014/34/EU for the attachment to MS2E motors are delivered by Rexroth nei‐
ther separately nor mounted on motors.
Motor damage by intrusion of liquid!
CAUTION
Pending liquids (e.g. cooling lubricants, gearbox oil, etc.) at the drive shaft
are inadmissible.
When installing gearboxes please use gearboxes with closed (oil-proof) lubri‐
cation system only. Gearbox oil should not be in permanent contact with the
shaft sealing ring of the motors.
Overdetermined bearing
When installing drive elements, avoid overdetermined bearing as impermissi‐
bly high bearing reactions can be generated due to unfavorable tolerance ra‐
tios.
If overdetermined arrangement of bearings cannot be avoided,
please contact Bosch Rexroth.
Couplings
The machine construction and the drive elements used must be carefully
adapted to the motor type so as to make sure that the load limits of the shaft
and the bearing are not exceeded.
When extremely stiff couplings are attached, the revolving radial
force may cause an impermissibly high load on the shaft and
bearing.
Bevel gear pinion or helical drive
pinion
Due to thermal expansion, the DE side of the drive shaft can be displaced by
up to 0.6 mm in relation to the motor housing. If helical drive pinions or bevel
gear pinions directly attached to the output shaft are used, this change in po‐
sition will lead to
●
a shift in the position of the axis, if the driving pinions are not axially
fixed on the machine side,
●
a thermally dependent component of the axial force, if the driving pin‐
ions are axially fixed on the machine side. This causes the risk of ex‐
ceeding the maximum permissible axial force or of the gear backlash in‐
creasing to an impermissible degree.
●
Damage of the NDE bearing by exceeding the maximum permissible ax‐
ial force.
It is recommended to use drive elements with integrated bearings
and mount them on the motor shaft via axially compensating cou‐
plings.
MS2E Synchronous Servomotors acc. to ATEX Directive
2014/34/EU
15/65
About this product
R911387136_Edition 02 Bosch Rexroth AG
