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MachLine ® selection guide
Our MachLine range has been designed for spindle applications for most machine
tools: lathes, milling and drilling machines, center bores, grinders, high speed
spindles, etc. Their capacity to support operating constraints - cutting and drive
forces - and their high rotation speeds have been optimized for the following criteria:
rotational accuracy, dimensional stability, geometrical micro and micro variations,
rigidity, heat, vibration and service life.
Features of angular contact bearings
- Very high quality 100Cr6 steel rings and balls,
- Two contact angles: 15° and 25° (17° and 25° for
MachLine ML and MLE range),
- Laminated resin cage centered on outer ring (Bronze
or PEEK cage on request),
- Three preload grades (specific preloading on request),
- Standard precision P4S: ISO4 (ABEC 7) for
dimensional characteristics and ISO2 (ABEC 9) for
all dynamic characteristics. It is also possible to
supply products with ISO 2 precision.
With our manufacturing know-how we can align the preloaded outer ring and inner ring
with very high precision, guaranteeing offset of less than 2µm.
This non-standardized characteristic determines the preload value, which has a significant
influence on spindle rigidity and behavior.
Comparison of internal geometry
Standard
ML
- MachLine High Speed – ML: Speeds 30 % faster
than the standard range are achieved using an
increased number of balls with reduced diameter
and improved cage guidance on the outer ring.
ML and MLE bearings characteristics
are laid out on page 48,
and CH characteristics on page 30.
- MachLine Sealed – MLE: Performance values
at speeds comparable to a standard bearing
lubricated with oil are achieved with grease
lubrication by using non-contact seals on ML
range bearings.
Standard MachLine MachLine Etanche Hybride (bille céramique)
MLE
- MachLine Hybrid – CH: Bearing performance can
be further enhanced by using ceramic balls instead
of steel balls.
hLine MachLine Standard Etanche Hybride MachLine (bille céramique)
MachLine Etanche Hybride (bille céramique)
CH
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