BECKHOFF AM3000 - Manual (Page 17)

Drive Technology 6 Technical description
AM3000 / AM3500 Version: 1.5 17
6.3 Standard features
6.3.1 Style
The basic style for the AM3000 and AM3500 synchronous servomotors is IM B5 according to DIN EN 60034-7.
IM B 5 (B5) IM V 3 (V3) IM V 1 (V)
The permitted mounting positions are specified in the technical data.
6.3.2 Shaft end, A-side
Power transmission is made through the cylindrical shaft end A, fit k6 (AKM1: h7) according to EN 50347, with
a locking thread or optionally with a feather key groove. The bearings are designed for a service life of 20,000
hours.
Radial force
If the motors drive via pinions or toothed belts, then high radial forces will occur. The permissible values at the
shaft end, depending on the speed, may be read from the diagrams in the Section 10. The permissible
maximum values can be found in the technical data. Power take-off from the middle of the free end of the shaft
allows a 10% increase in FR.
Axial force
Axial forces arise when assembling pinions or pulleys on the shaft and using angular gearheads, for example.
The permissible maximum values can be found in the technical data.
Coupling
Double-coned collets, possibly in association with metal bellows couplings, have proven themselves as
excellent, zero backlash coupling elements.
6.3.3 Flange
Flange dimensions according to IEC standard, fit j6 (AM301x: h7), accuracy according to DIN 42955
Tolerance class: N
6.3.4 Protection class
Standard version IP65
Standard shaft bushing IP54
Shaft bushing with shaft sealing ring IP67
6.3.5 Overtemperature protection
The standard version of each motor is fitted with an electrically isolated PTC with a rated temperature of 155 °C
± 5%. The PTC does not provide any protection against short, heavy overloading.
Provided that our preassembled cable is used, the PTC is integrated into the monitoring system of the digital
servo drives.
6.3.6 Insulation material class
The motors conform to insulation material class F according to IEC 60085 (UL 1446 class F).