Action Bearing Co.
201 Brighton Ave., Boston, MA 02134 US
Phone: 800.225.4587 • Fax: 800.252.1996
E-Mail: info@actionbearing.com • Web site: www.actionbearing.com
All Categories > Mounted Units > Standard Duty Mounted Units > ER Inserts > Item # ER21  


Item # ER21, ER Inserts
List Price QUOTE

Standard duty with snap ring and set screw lock. Available with:
  • Set screw or eccentric locking collars.
  • Available in stainless steel and nickel plated styles.
  • Wide inner race
  • Black Oxide Finish
  • B-type seals
  • Available in Free Running or High Temperature styles.



    •  Specifications 

    (d) Shaft Diameter
    		1.3125 in

    (D) Dimension
    		2.8346 in

    (Bi) Dimension
    		1.6890 in

    (Be) Dimension
    		0.9449 in

    (N) Dimension
    		0.6890 in

    (M) Dimension
    		1 in

    (E) Dimension
    		0.7547 in

    (A) Dimension
    		0.0650 in

    (H) Dimension
    		0.2165 in

    (R) Dimension
    		0.2815 in

    (J) Dimension
    		0.1252 in

    (P) Dimension
    		3.0906 in

    (G) Dimension
    		0.2559 in

    (Ds) Dimension
    		5/16-24UNF

    Basic Load Rating
    		5.535 lb

    Basic Static Load Rating
    		3.340 lb

    Weight
    		1.39 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