FAG bearing type and applicable accuracy grade

Core Tip: FAG bearing type and applicable accuracy grade: bearing form applicable standard applicable accuracy grade deep groove ball bearing GB3070 level 6 level 5 level 4 level 2 level angular contact ball bearing 0 level 6 level 5 level 4 level 2 level alignment
FAG bearing type and applicable accuracy grade:

    Bearing form Applicable standard Applicable accuracy grade
    Deep groove ball bearings GB307 Level 0 Level 6 Level 5 Level 4 Level 2
    Angular contact ball bearings 0 level 6 level 5 level 4 level 2 level
    Self-aligning ball bearing
    Cylindrical Roller Bearings 0 Class 6 Level 5 Level 4 Level 2
    Tapered roller bearings Metric series (single row) GB307 Level 0 Level 6 Level 6 Level 5 Level 4
    Metric series (double row, four columns) SB/T5341994 Level 0
    Inch Series SB/CO/T1089 Class4 Class2 Class3 Class0 Class00
    Spherical roller bearings GB307 Level 0
    Thrust ball bearing 0 level 6 level 5 level 4 level
    Thrust spherical roller bearings
    The GB/T30794 standard divides the bearing grade into G E D C B. The ISO, JIS and other standards are as follows:

    Standard accuracy
    GB/T30794 B C D E G
    ISO CLASS2 CALSS4 CLASS5 CLASS6 NORMAL CLASS
    DIN P2 P4 P5 P6 P0
    ANSI ABEC9 ABEC7 ABEC5 ABEC3 ABEC1
    JIS JIS2 JIS4 JIS5 JIS6 JIS0

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How to maintain the water pump bearing

Core Tips: (1) The pump that is newly put into use must be replaced with grease (oil) after 100 hours of operation, and then replaced once every 500 hours. (2) Flow bearing with grease lubrication, running

(1) The pump that is newly put into use must be replaced with grease (oil) after 100 hours of operation, and then replaced once every 500 hours.

     (2) Lubricating grease-lubricated flow bearings should be replaced after 1500 hours of operation. The amount of oil to be filled should not be too much or too little, because too much or too little grease will cause the bearing to heat up. It is preferably 1/2 to 2/3 of the volume of the bearing chamber.

     (3) For bearings lubricated with lubricating oil, the amount of oil should be added to the specified position.

     (4) The container containing lubricating oil or grease should be clean and should be sealed properly. There should be no dust, iron filings and other debris to avoid damage to the bearing.

     (5) Motor bearings generally use sodium-based grease, which is characterized by high temperature resistance (125 ° C), but is easily soluble in water, so it can not be used for lubrication of water pump bearings.

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