Shaft End, A-Side; Order Code; Shaft Seal; Protective Device - Kollmorgen AKM2G2 Betriebsanleitung

AKM2G Instructions | 1 English

1.4.2.6 Shaft end, A-side

Power transmission is made through the cylindrical shaft end A, fit k6 to EN 50347, with a
locking thread but without a fitted keyway.
Motors are also available with keyway and inserted key according to DIN 6885. The shaft
with keyway is balanced with short (half) key.
Bearing life is calculated with 20.000 operating hours.

Order code

N
C
Radial force
If the motors drive via pinions or toothed belts, then high radial forces will occur. The per-
missible values at the end of the shaft may be read from the diagrams in chapter "Drawings"
from (➜ # 224). The maximum values at rated speed you will find at the technical data from
(➜ # 151). Power take-off from the middle of the free end of the shaft allows a 10% increase
in F
Axial force
When assembling pinions or wheels to the axis and use of e.g. angular gearheads axial
forces arise. The maximum values at rated speed are found in the technical data.
Coupling
Double-coned collets have proved to be ideal zero-backlash coupling devices, combined, if
required, with metal bellows couplings. Shaft center hole per DIN 332 Form D.

1.4.2.7 Shaft seal

If AKM2G is connected to a machine flange with unsealed shaft region, then the shaft seal
(option "0T" or "0V") ensures the shaft sealing.
The "0T" seal option is made of mineral filled PTFE seal (Teflon®) which is self-lubricating
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and is recommended for applications where regular lubrication of the shaft seal is not pos-
sible.
The "0V" seal option is made of Viton® and is recommended for applications where regular
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lubrication of the shaft seal occurs such as lubricated gear boxes.
The shaft seal ensures the IP65 protection for the shaft area.
l
The rated performance is achieved after some hours of shaft seal run-in. No special pro-
l
cedure for run-in is needed.
Some "shedding" of the shaft seal material, particularly the Teflon material®, is normal and
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does not affect the function.
Shaft seal is pre-lubricated by grease.
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1.4.2.8 Protective device

The standard version of each motor is fitted with an electrically isolated PT-1000+ PTC. The
thermal sensors do not provide any protection against short, heavy overloading.
The motor can be delivered with a PT-1000, PTC, or KTY 84-130 equivalent sensors option-
ally (see Thermal Sensor options 1, 2, 3).
With digital feedback systems SFD3 (CA), Hiperface DSL (GU), and EnDat 2.2 (LD) the tem-
perature sensor status is transmitted digitally and evaluated in the drive.
Provided that our configured feedback cables are used, the sensor is integrated into the mon-
itoring system of the digital servo amplifiers.
16 Kollmorgen | kdn.kollmorgen.com | May 2019
Shaft end
Smooth shaft
Keyway, closed
.
R
Available for
AKM2G 2-7
AKM2G 2-7