The structure of bearings consists of open type and close type.And the close type can be equipped with shields with non-contact seals; with contact seals. You can choose by your application request.
Part number symbol Part number symbol Part number symbol
Z:Single Side RZ:Single Side RS:Single Side
ZZ:Doubel Side 2RZ:Doubel Side 2RS:Doubel Side
The Shield is secured directly Rubber seal with steel insert is Rubber seal with steel insert is
in the outer ring secured directly in the outer ring secured directly in the outer ring
No contact between shield bore Seal doesn't contact circumference Seal contact circumference of
and circumference of outer ring land of inner ring inner ring.Contacted Seal is
highly sealed;but rotation torque
is higher than non-contact seal
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