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Item # ER12MMFR, ER Free Running Inserts

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  • The free running style is a drop in replacement for standard ER bearings except that it provides low torque/free running service.
  • They use 'flingers' on both sides to provide a sealed unit.
  • The temperature range is -40 to 225F.
  • High temperature seals are available for 400 to 450F operation.



  • Unit of Measure: Imperial

     Specifications   

    (D) Dimension

    1.8504 in

    (Bi) Dimension

    1.2188 in

    (Be) Dimension

    0.6250 in

    (N) Dimension

    0.4063 in

    (M) Dimension

    0.8125 in

    (E) Dimension

    0.4844 in

    (A) Dimension

    0.0469 in

    (H) Dimension

    0.1719 in

    (R) Dimension

    0.1719 in

    (J) Dimension

    0.0938 in

    (P) Dimension

    2.0625 in

    (G) Dimension

    0.1875 in

    (Ds) Dimension

    1/4-28UNF

    Basic Load Rating

    2.740 lb

    Basic Static Load Rating

    1.600 lb

    Weight

    0.49 lb

    Common Options

    BUC-- Black Oxide Coated insert
    CUC-- Hard Chrome Coated Insert

    HUC-- High Temperature Insert 400F

    L3-- Triple lip labyrinth seal

    NPPA-- Nickel Plated Housing

    S-- Stainless Steel Housing

    SUC-- Stainless Steel Insert

    TP-- Thermoplastic Housing


     MORE IMAGES 

    ·  B-type Seal


     DOWNLOADS 

    Standard Duty Bearing Unit Interchanges
    (PDF, 898KB)

    MB Application Information
    (PDF, 672KB)