McMaster-Carr logo
    Filter by
    System of Measurement
    Thread Size
    Industrial Info Snippet
    Nut Type
    Face Style
    For Lock Washer Specifications Met
    Spanner Wrench Style
    Specifications Met
    USMCA Qualifying
    Locking Type
    Thread Spacing
    Industrial Info Snippet
    Insert Maximum Temperature
    Thread Type
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    7 Products

    Bearing Locknuts

    Image of System. Front orientation. Contains Annotated. Bearing Nuts. Bearing Locknuts.
    Image of Product. Carbon Steel. Front orientation. Bearing Nuts. Bearing Locknuts, Chamfered Face, Carbon Steel.
    Image of Product. 303 Stainless Steel. Front orientation. Bearing Nuts. Bearing Locknuts, Chamfered Face, 303 Stainless Steel.

    Carbon Steel

    303 Stainless

    Steel

    With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
    Carbon Steel—All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts.
    303 Stainless Steel—303 stainless steel locknuts resist corrosion better than carbon steel locknuts but aren’t as strong. They withstand washdowns and chemicals.
    Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
    Thread
    Carbon Steel
    303
    Stainless Steel
    Sockets
    Size
    Spacing
    OD
    Wd.
    Insert Max.
    Temp., ° F
    Specs. Met
    Each
    Each
    Each
    Chamfered Face
    0.664"-32
    Extra Fine
    1 1/8"13/32"160ANSI/ABMA 8.20000000000000000000000000000000000000000
     

    Bearing Nuts

    Image of Product. Front orientation. Bearing Nuts. Bearing Nuts, Chamfered Face.

    Chamfered Face

    Often paired with spring lock washers to strengthen their hold, these bearing nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
    Chamfered Face—Chamfered-face bearing nuts weigh less and produce less heat than stepped-face nuts.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    303 Stainless Steel—303 stainless steel bearing nuts resist corrosion better than carbon steel. They also withstand washdowns and chemicals.
    Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
    Thread
    Carbon Steel
    303
    Stainless Steel
    Bearing
    Lock Washers
    Sockets
    Size
    Spacing
    OD
    Wd.
    Specs. Met
    For Lock Washer
    Specs. Met
    Each
    Each
    Each
    Each
    Chamfered Face
    0.664"-32
    Extra Fine
    1 1/8"11/32"ANSI/ABMA 8.2ANSI/ABMA 8.20000000000000000000000000000000000000000000000000000000
     
    back to top