McMaster-Carr logo
    Filter by
    System of Measurement
    Shaft Diameter
    Attribute Image
    Width
    Attribute Image
    Bearing Seal Type
    Shaft Mount Type
    Bearing Trade Number
    Industrial Info Snippet
    Attribute Image
    Performance
    Bearing Type
    Bearing Construction
    Seal Material
    Cage Material
    Shaft Type
    ABEC Rating
    Inner Ring Type
    Lubricant
    Lubrication
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    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)
    1 Product

    One-Way-Locking Ball Bearings

    Image of Product. Front orientation. Ball Bearings. One-Way-Locking Ball Bearings, Sealed.

    Sealed

    Prevent shafts from reversing direction. These bearings have internal components (sprags) that lock against the outer ring to transmit torque one way but spin freely in the other. They're often found in backstopping, indexing, and overrunning applications. For example, they're used to prevent conveyors from reversing.
    Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.
    Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.
    ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.
    Temp.
    Range, ° F
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Wd.,
    mm
    ABEC
    Rating
    Dynamic Radial
    Load Cap., lb.
    Max. Rotation
    Speed, rpm
    Max. Torque,
    ft·lbf
    Min.
    Max.
    Inner Ring
    Type
    Bearing Trade
    No.
    Each
    Sealed
     
    Steel
    40802712,0103,000305-40170StandardFZ 6208 2RS4752N330000000
    One-Way-Locking Ball Bearing, Sealed, Trade No. Fz 6208 2RS, for 40 mm Shaft Diameter
    EachIn stock
    Compatible Products for This Ball Bearing
     
    back to top