Waxing metal ball bearings quality for blowout preventers

Applicable to the parts without dust,you can directly see the bare steel ball of good speed and low noise .
BEARING INNER RING
A steel ball with a common steel ball or roller rolling on the outer surface of the inner ring.
RUBBER SEALAFTER CODE 

RZ 2RZ RS 2RS The sealing material is made of skeleton rubber and has good dust-proof effect, which can prevent any foreign matter from invading and dust and water in a harsh environment.

                                                   

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BEARING INNER RING
A steel ball with a common steel ballor roller rolling on the outer surface of the inner ring.
2Z-DOUBLE-SIDE IRON-COVER BEARING
The sealing material is made of stainless steel and can effectively prevent external foreign matter from intruding into thebearing and running at high speed Note: Mark 2Z means dust cover (iron cover on both sides. 2 means dust cover on both sides.single Z means dust cover on one side.
BEARING INNER RING
A steel ball with a common steel ball orroller rolling on the outer surface of the Inner ring