SKF - Rolling Bearings

Designs and variants
NX series
Needle roller / full complement thrust ball
bearings in the NX series († fig. 26) are suitable
for applications where there are moderate
radial loads and lighter, single direction
axial loads. Their extremely low sectional
height enables shaft centrelines to be positioned
close together like for multi-spindle
drills. For axial support, the bearings can be
mounted with a snap ring or against a shoulder
in the housing bore. The snap ring groove
in the outer ring provides a cost-effective and
axially space-saving solution († fig. 27). The
appropriate snap rings are listed in the product
tables.
Needle roller / thrust ball bearings in the NX
series have a stamped steel cover. It extends
over the shaft washer of the thrust ball bearing
and is firmly attached to the radial needle
roller bearing. The cover makes these bearings
non-separable. Most often they are oil
lubricated, as the cover has lubrication holes.
Therefore, SKF supplies these bearings without
grease.
Needle roller / thrust ball bearings in the NX
series with the designation suffix Z († fig. 28)
have a stamped steel cover without lubrication
holes and should be grease lubricated.
NX
Fig. 26
Fig. 27
6
NX mounted with a snap ring
Fig. 28
NX .. Z
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