The bearing assembly
A few problems can effect the performance of the bearing and spindle systems. The first is one of
handling when inserting the spindle in the bearing. If not inserted vertically nicks could occur on
the upper bushing. Another is lack of lubrification. With time, the two problems would have a
relatively similar effect on sound. The nicks will create a worst than what was described in the
leveling feet section . The lack of oil over time will allow the bushing surface to become sticky
which will accelarate the wear of both the bushing and spindle. These two problems bear a direct
impact on noise increase. Some lubricating oils are not appropriate to be used in the bearing well.
Their viscosity surface of the bushings causing inconsistent friction, sonically this would translate
into irregular wow and possibly flutter.
The drive belt
An oily drive belt will keep the drive systemp from responding sharply to varying loads. On a
record the load is the continiously changing modulations in the groove. In order to maintain the
platter’s momentum a positive drive is absolutely required. A similar problem also develops with
time when the belt looses its properties thus loosing its ability to effectively transmit the motor to
platter energy. The impact on sound can be serious; lack of punch, loss of focus.
The record clamp
With the purpose of maximizing the record’s stability and mechanical energy transfer through the
mat, the record clamp will cause damage to your records if overtightened. The outer edge of the
record could lifted off the surface of the mat causing sonic problems due to non-horizontal plane.
Simultaneously the energy transfer to the mat would be reduced causing the sound to become
harsh.
ALEXANDRIA MK III
Owner’s manual