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.
1. Part number symbol Z:Single Side
ZZ Doubel Side
The Shield is secured directly in the outer ring
No contact between shield bore and circumference of outer ring.
2.Part number symbol RZ:Single Side
2RZ: Doubel Side
Rubber seal with steel insert is secured directly in the outer ring
Seal doesn't contact circumference of inner ring.
3.Part number symbol RS:Single Side
2RS: Doubel Side
Rubber seal with steel insert is secured directly in the outer ring
Seal contact circumference of inner ring
Contacted Seal is highly sealed,but rotation torque is higher than Non-contact seal.
