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MATERIAL |
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The ring
and balls of
CLZCNBK
bearings
are made of refining bearing steel GCr15(AISI
52100),the retainer are punched from
brass strip(H62) or top quality cold-rolled
steel strip(SPCC BQB402) and reinforced
plastics are avail-able if necessary.The
shield is made phosphatizing steel skeleton
are hot pressed.
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TOLERANCE |
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The bearing
tolerance is classified as Class2,4,5,6and
0 accordance with the Chinese national
standard GB/T307-94.The table as below
makes a comparison between this classification
of tolerance with Chinese national standard
GB307-84 as well as ISO standard.
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RADIAL
PLAY |
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The radial play
of bearings is specified as five groups
as follows in accordance with Chinese
national standard GB4604´´
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SHIELDS,SEALS
AND LUBRICANT |
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The bearings
are divided into various types such
as bearings,single shield or double
shield(z,zz) and single seal or double
seals(RS,2RS).They are filled with proper
quantity antirust lubricant or grease
before shipment.All shese bearings can
be used after unpacking without cleaningp.
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VIBRATION
AND NOISE |
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The vibration
and noise of bearings are classifited
as Z1,Z2 and Z3.It is measured by the
instrument of SO910-1.
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PACKAGE
AND MARKS |
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Every 10 sets bearing are packed into palstic
tube or wrapped by rustproof paper and
packed into carton box.Single package
is avaiabe,that is,each set bearing
is contained into plastic bag and then
packed in little box.
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