McMaster-Carr logo
    Filter by
    System of Measurement
    Shaft Diameter
    Attribute Image
    Width
    Attribute Image
    Bearing Construction
    Bearing Seal Type
    Bearing Trade Number
    Industrial Info Snippet
    Attribute Image
    Cage Material
    Shaft Type
    Misalignment Capability
    Bearing Type
    Ball Bearing Profile
    For Housing ID
    Attribute Image
    ABEC Rating
    DFARS Specialty Metals
    Dynamic Radial Load Capacity
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Material
    Maximum Rotation Speed
    Maximum Temperature
    Minimum Temperature
    Performance
    Radial Clearance
    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

    Self-Aligning Ball Bearings

    Image of Product. Front orientation. Ball Bearings. Self-Aligning Ball Bearings, Open.

    Open

    Misalignments correct themselves on the fly in these bearings. Two rows of balls have separate raceways in the inner ring and a shared raceway in the outer ring, so the balls rock back and forth to compensate for misalignment. This construction also reduces noise and vibration.
    Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.
    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
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Wd.,
    mm
    ABEC
    Rating
    Dynamic Radial
    Load Cap., lb.
    Max. Rotation
    Speed, rpm
    Misalignment
    Capability
    Min.
    Max.,
    ° F
    Inner Ring
    Type
    Bearing
    Trade No.
    Each
    Open
     
    Steel
    20521512,80012,0004°Not Rated210Standard1304
    		00000000000000
    Self-Aligning Ball Bearing, Open, Trade Number 1304, for 20 mm Shaft Diameter
    EachDelivers Monday 7-9 am
     
    back to top