Handling The Fc Motor; Bearings; Output Shafts - Danfoss VLT FCM Series Manual

Handling the FC motor

Handling and lifting of VLT DriveMotors (FC motors)
must only be undertaken by qualified personnel. Full
product documentation and operating instructions
must be available together with tools and equipment
necessary for safe working practice. Eyebolts and/or
lifting trunnions supplied with the FC motor are
designed to support only the weight of the FC motor,
not the weight of the FC motor and any auxcillary
equipment attached to it. Be absolutely sure that
cranes, jacks, slings and lifting beams are capable of
carrying the weight of equipment to be lifted. Where
an eyebolt is provided with the motor, this should

Bearings

The standard solution is fixed bearing in the drive
side of the motor (shaft output side).
To avoid static indention, the storage area should be
vibration free. Where exposure to some vibration is
unavoidable, the shaft should be locked. Bearings
may be fitted with a shaft locking device which should
Bearing life
Maximum hours bearing life (Lna) expected at 80° C bearing temp. x 10
FCM
Horiz.
305-315 22
322-340 26
355-375 26
Lna bearing life is the adjusted, L10 life rating, taking account of: -Reliability -Material improvement -Lubrication
conditions.
Standard Bearing references and oil seals
FCM Mounting Poles (2/4)
305-307 All
311-315 All
322-330 All
340 All
355-375 All

Output shafts

Output shafts are produced from 35/40 Ton (460/540
2
MN/m ) tensile steel. Drive end shafts are provided
with a tapped hole to DIN 332 Form D and a
closed profile keyway as standard.
16
-1
3000 min
Vert.
22
26
26
Bearings
Drive end Non-drive end
All 6204 2Z-C3 6204 2RS-C3
All 6205 2Z-C3 6205 2RS-C3
All 6206 2Z-C3 6206 2RS-C3
All 6206 2Z-C3 6206 2RS-C3
All 6208 2Z-C3 6208 2RS-C3
®
VLT FCM Series
be screwed down until its shoulder is firmly against
the face of the stator frame to be lifted.
FCM type
FCM 305
FCM 307
FCM 307
FCM 315
FCM 322
FCM 330
FCM 340
FCM 355
FCM 375
be kept in place during storage. Shafts should be
rotated by hand, one quarter of a revolution, at weekly
intervals. Bearings are despatched from the works
fully charged with lithium based grease.
Lubrication
Frame size Lubrication type
80-132 Esso unirex N3
3
hours.
1500 min
Horiz.
30
30
30
Oil seals - Bore x O/D x width in mm
20 x 30 x 7
25 x 35 x 7
30 x 42 x 7
30 x 42 x 7
40 x 52 x 7
Balance
All motors are dynamically balanced, to ISO 8821with
key convention to IEC 60034-14.
MG.03.H3.02 - VLT is a registered Danfoss trademark
approx. weight (kg.)
11
13
17
20
26
28
37
56
61
Temperatur range
-10 to + 1400°C
-1
Vert.
30
30
30