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2 2 INSERT BALL BEARINGS

NTN Triple-sealed bearings for bearing units

These reliable triple-sealed bearings are dustproof and waterproof.
They ensure a longer bearing life even when exposed to heavy airborne dust and
splashes of foul water.

FEATURES

Better dustproofing and waterproofing ensure a longer bearing life.
Triple-sealed bearings feature a secure bearing seal with three lips. This special seal offers reliable
dustproofing and waterproofing superior to those of standard bearings used in bearing units.
In addition, it ensures a longer service life, even when exposed to heavy airborne and splashes of
foul water. (Patent pending)
Reduces maintenance cost.
A bearing life longer than that of a standard bearing unit configurations means extended maintenance
intervals, greatly reduces maintenance costs (of inspection, relubrication, replacement, etc.), and increased
availability of machinery.
Decreases price of the bearing unit and contributes to more compact machinery.
The triple-sealed bearing unit replaces conventional covered bearing units in certain operating conditions,
greatly decreasing the cost of bearing units. In addition, if the cover is not required, the machinery can be
made more compact.
Secure ball point setscrew
The triple-sealed bearing is mounted on the shaft with NTN’s unique ball point setscrew, which features an
embedded ball in its tip. Compared with knurled cup point or cup-point setscrews, the ball point setscrew
provides much greater resistance to loosening, as it does not readily loosen due to vibration or impact.
Interchangeability
The triple-sealed bearing unit conforms to the JIS (Japanese Industrial Standard) for UC-type bearings.
It is not only ready to use as a relubricable bearing, but it also replaces the conventional bearing units
of NTN. It therefore serves as a ready replacement for existing bearing units.

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