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WHY
NSK-AKS BALL ARE SUPERIOR
Tolerances
The dimensional accuracy of NSK-AKS Steel Balls is held
to extremely close tolerances. The measurement of
dimensional accuracy in every manufacturing process is
made with instruments having the proper accuracy for the
respective processes. Well organized quality control is
applied to every process. As the measurement of finished
balls is made with accurate instruments in a class,
air-conditioned room under well-designed quality control
systems, the finished balls have satisfactory tolerances
for their respective grades.
Finish
The lapping finish determines the surface condition of
the balls. It is well known that NSK-AKS Steel Balls
have a perfectly smooth surface as they are finished by
a unique lapping method developed through many years of
research. Various checks on roughness, waviness,
vibration and noise, ect. guarantee the surface finish
of the balls. These checks also furnish the data for
improvement to bring the ball quality to a perfect
geometrical sphere.
Durability
NSK-AKS uses strictly selected vacuum-degassing steel to
insure maximum durability. Defects such as pipe, seams,
segregation, excessive inclusion of non-metallic
impurities, decarburization, etc. constitute causes for
rejection of materials at inspection. To ensure the heat
treatment process, control and maintenance of furnaces
is carefully done. Further, fatigue life tests are
performed to assure long durability and maximum
strength.
Uniformity
NKS-AKS puts great emphasis on the uniformity of
quality. To attain this, NSK-AKS applies its own quality
and measurement control system through the whole process
of production and inspection, acquired through years of
research activity into control techniques. Every
manufacturing lot can be traced consistently from
material to finished balls and there is little
qualitative variation in a lot. As regards to
dimensional accuracy, NSK-AKS steel balls do not need a
sorting process.
ISO
Certification
ISO / TS16949
ISO 14001
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