Siemens CGGV Manual De Usuario
- 20 -
Maintenance
Bearing Lubricants - Oil
SSU at
100
°F
Typical
Oil
ISO VG
Bearing Type
300-350
68
Antifriction Bearing
700-800
150
Spherical Roller
300-350
68
Kingsbury
300-350
68
Sleeve Guide Bearing
The preceding table lists “typical” lubricating oils only.
See the lubrication plate mounted on the motor for
the correct oil and relubrication frequency for your
motor.
Before starting the machine, fill bearing chamber to
the correct oil level as indicated on the motor outline
drawing. Always fill through the pipe or plug at the
side of the motor. Do not overfill, as the oil may then
escape along the shaft and enter the unit. To change
oil, drain the oil reservoir by removing the pipe plug.
Clean and flush with solvent and refill with fresh
filtered oil every three to twelve months, depending
upon severity of service. Use a high grade turbine oil
having a viscosity indicated on the motor lubrication
data plate..
See the lubrication plate mounted on the motor for
the correct oil and relubrication frequency for your
motor.
Before starting the machine, fill bearing chamber to
the correct oil level as indicated on the motor outline
drawing. Always fill through the pipe or plug at the
side of the motor. Do not overfill, as the oil may then
escape along the shaft and enter the unit. To change
oil, drain the oil reservoir by removing the pipe plug.
Clean and flush with solvent and refill with fresh
filtered oil every three to twelve months, depending
upon severity of service. Use a high grade turbine oil
having a viscosity indicated on the motor lubrication
data plate..
Always correct oil or water leaks and replace lost
lubricant promptly.
lubricant promptly.
CAUTION
Improper oil level reading may cause improper
lubrication of machine.
lubrication of machine.
Avoid adding oil while unit is running.
Bearing Replacement
Replacement bearings may be of a different
manufacturer; but must be equal to the originals used
on the motor. See nameplate on unit or outline
drawing for bearing numbers. When ordering
bearings specify as follows:
1. Identify numerals and manufacturer stamp on the
manufacturer; but must be equal to the originals used
on the motor. See nameplate on unit or outline
drawing for bearing numbers. When ordering
bearings specify as follows:
1. Identify numerals and manufacturer stamp on the
bearing (number is also on motor nameplate).
2. Bearing Tolerance Class, i.e. (A.B.E.C.-1)
Annular Bearing Engineer’s Committee -
Tolerance Class One.
Tolerance Class One.
3. Electric motor quality.
4. If deep groove bearings, specify the internal
4. If deep groove bearings, specify the internal
radial clearance, i.e. (A.F.B.M.A.-3) Antifriction
Bearing Manufacturers Association, Clearance
Class Three.
Bearing Manufacturers Association, Clearance
Class Three.
5. Angular contact type bearing replacements must
be equivalent in angle of contact. 40% contact
angle is standard.
angle is standard.
6. The complete A.F.B.M.A. bearing number from
the motor nameplate.
Spherical Roller Bearings
External thrust transmitted from the driven unit is
normally carried by the top bearing. If replacement is
necessary, the new bearing must be the same type
as the original (See Figure 5).
Figure 5