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    10 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.

    Carbon 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.
    Zinc-Plated Carbon Steel—Zinc-plated carbon steel locknuts resist rusting from some moisture, but you shouldn’t use them with salt water or chemicals. They are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts.
    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.
    Locknuts
    Sockets
    Thread
    Carbon Steel
    Zinc-Plated
    Carbon Steel
    303
    Stainless Steel
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Insert Max.
    Temp., ° F
    Specs.
    Met
    Each
    Each
    Each
    Each
    Chamfered Face
    M35 × 1.5 mmExtra Fine
    		5011210————03552N38000000———0———0
    M35 × 1.5 mmExtra Fine
    		5212160ISO 2982-26343K39000000———06343K670000005510N1550000000
     

    Bearing Nuts

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

    Carbon Steel

    Chamfered Face

    Image of Product. Front orientation. Bearing Nuts. Bearing Nuts, Carbon Steel, Stepped Face.

    Carbon Steel

    Stepped 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.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    Chamfered Face—Chamfered-face bearing nuts weigh less and produce less heat than stepped-face nuts.
    Stepped Face—Use stepped-face bearing nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.
    ISO 2982— Some chamfered-face bearing nuts meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
    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.
    Nuts
    Bearing
    Lock Washers
    Sockets
    Thread
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs. Met
    For Lock Washer
    Specs. Met
    Each
    Each
    Each
    Carbon Steel
     
    Chamfered Face
    M35 × 1.5 mmExtra Fine
    		528DIN 981, ISO 2982DIN 54063554N180000090391A118000005510N1830000000
     
    Stepped Face
    M35 × 1.5 mmExtra Fine
    		5511DIN 1804DIN 4623564N230000090407A1260000———0
     

    Spanner Sockets

    Image of ProductInUse. Socket Shown With Wrench (Sold Separately). Front orientation. Exploded view. Contains Annotated. Sockets. Spanner Sockets.
    Image of Product. Front orientation. Sockets. Spanner Sockets.

    Socket Shown With Wrench (Sold

    Separately)

    Image of Attribute. Front orientation. Contains Annotated. Spanner Sockets.
    Image of Specification. 4-Pin. Front orientation. 4-Pin Socket. Spanner Sockets.

    4-Pin

    For easy tightening and loosening, these sockets have pins that grip the slotted sides on bearing nuts. These sockets require less clearance around bearings than standard hook spanner wrenches, so they’re good in tight spaces. Use them with a square-drive wrench handle or a ratchet wrench; they’re not for use with impact wrenches.
    Clearance
    Dp., mm
    Drive Size,
    mm
    Overall
    Lg., mm
    OD,
    mm
    For Nut Thread
    Size
    For Bearing Nut
    Specs. Met
    For Nut
    Dia., mm
    Nut
    Bolt
    Material
    Each
    4-Pin Socket
     
    1/2" Square Drive
    528260M35
    		DIN 981, ISO 2982521156Steel
    		5510N1830000000
    529064M35
    		ISO 2982-252—57Steel
    		5510N155000000
     

    Thin-Profile Bearing Nuts

    Image of System. Front orientation. Contains Annotated. Bearing Nuts. Thin-Profile Bearing Nuts.
    Image of Product. Front orientation. Bearing Nuts. Thin-Profile Bearing Nuts.
    Used in pairs or with another bearing nut, these thin-profile nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle. Threading two nuts tightly against each other makes it harder for vibration to loosen your assembly than if you used only one nut. For the nut closer to the bearing, position the stepped face towards the bearing. These thin-profile nuts have holes on the side, so you can tighten and loosen them with a pin spanner wrench. All meet DIN 1816, an international standard for bearing locknut dimensions.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    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
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs.
    Met
    Each
    Carbon Steel
     
    Stepped Face
    M35 × 1.5 mmExtra Fine
    		5511DIN 18163549N23000000
     
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