McMaster-Carr logo
    Filter by
    System of Measurement
    Construction
    Shaft Type
    Shaft Mount Type
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Number of Clamping Screws Included
    Clamping Screw Type
    Width
    Attribute Image
    Clamping Screw Material
    Mounting Fastener Head Style
    Industrial Info Compare
    Mounting Fastener Thread Size
    Industrial Info Compare
    Thread Size
    Industrial Info Compare
    Clamping Screw Finish
    Mounting Hardware Included
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    7 Products

    Two-Piece Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Two Piece, For Round Shafts.

    For Round Shafts

    Attach these collars anywhere along your shaft, which helps when other components are already installed or you can't access the end. They clamp firmly and evenly without marring the shaft, so you can reposition or remove collars later.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    Clamping
    Screw
    For Round Shafts
    For Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    3 3/8"4 3/4"7/8"Socket Head26436K244000000
     
    Zinc-Plated Carbon Steel
    3 3/8"4 3/4"7/8"Socket Head22380K6900000
     
    303 Stainless Steel
    3 3/8"4 3/4"7/8"Socket Head26436K245000000
     

    Shaft Grounding Rings

    Image of ProductInUse. Shaft Grounding Ring Shown Installed. Front orientation. Grounding Rings.

    Shaft Grounding Ring Shown

    Installed

    Image of Product. One Piece. Front orientation. One Piece.

    One Piece

    Image of Product. Two Piece. Front orientation. Two Piece.

    Two Piece

    Prevent motor downtime by protecting bearings from stray currents generated by variable frequency drives. These grounding rings create a path for stray currents, so they won't damage bearing surfaces. Use them on AC motors.
    One Piece—One-piece rings slide on from the end of the shaft.
    Two Piece—Two-piece rings simplify installation when motors are connected to equipment.
    One Piece
    Two Piece
    For Shaft
    Dia.
    For Motor Frame Size
    Mounting Hardware
    Included
    Includes
    Each
    Each
    Aluminum
    3 3/8"NEMA 444T, NEMA 445T, NEMA 447T, NEMA 449TYes16 Brackets (4 each of 4 Common Styles)4805N2100000004805N32000000000
     
    Accessories for Grounding Rings
    Conductive Adhesives
    Image of Product. Front orientation. Grounding Rings.
    Use adhesives to install rings without having to drill or tap into motor frames.
    Container
    Size, fl.
    oz.
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength, hr.
    Mix
    Ratio
    Each
    0.5Adhesive10241:14805N330000000
    Conductive Coatings
    Image of Product. Front orientation. Grounding Rings.
    Apply conductive coatings to motor shafts before installing the rings to improve the conductivity of the steel shaft surface that touches the grounding ring.
    Container
    Dry Time
    Size, fl.
    oz.
    Type
    Touch,
    min.
    Overall,
    hr.
    Max. Temp.,
    ° F
    Application
    Temp., ° F
    Color
    Each
    0.5Bottle302433072 to 300Gray4805N340000000
    back to top