NSK Self-Aligning Ball Bearings, Cylindrical Bore Bearings 1203 ,D=17

Description

NSK Self-Aligning Ball Bearings, Cylindrical Bore Bearings 1203 ,D=17

 

Bearing
Numbers
Boundary Dimensions
(mm)
Basic Load Ratings
(kN)
Limiting Speeds
(min-1)
Constant

e
Axial Load
Factors
Mass
(kg)
approx.
d D B r
min.
Cr C0r Grease Oil
Y2 Y3 Y0
1203 17 40 12 0.6 8 2.01 16000 20000 0.31 3.1 2 2.1 0.072

 

DESIGN, TYPES, AND FEATURES

The outer ring of a self-aligning ball bearing has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. This type is recommended when the alignment of the shaft and housing is difficult and when the shaft may bend. Since the contact angle is small, axial load capacity is low.
Pressed-steel cages are usually used.


 

 

PROTRUSION AMOUNT

 Some self-aligning ball bearings have balls that protrude from the side face as shown below. This protrusion amount b1 is listed in the following table.


 

 

 

 

PERMISSIBLE MISALIGNMENT

 The permissible misalignment of self-aligning ball bearings is approximately 0.07 to 0.12 radian (4° to 7°) under normal loads. However, depending on the surrounding structure, such an angle may not be possible. Take care in the design of the bearing surroundings.

Product form

NSK Self-Aligning Ball Bearings, Cylindrical Bore Bearings 1203 ,D=17   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting... Read more

SKU: 1203
Barcode: 1203

$17.56 Excl. VAT

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    Description

    NSK Self-Aligning Ball Bearings, Cylindrical Bore Bearings 1203 ,D=17

     

    Bearing
    Numbers
    Boundary Dimensions
    (mm)
    Basic Load Ratings
    (kN)
    Limiting Speeds
    (min-1)
    Constant

    e
    Axial Load
    Factors
    Mass
    (kg)
    approx.
    d D B r
    min.
    Cr C0r Grease Oil
    Y2 Y3 Y0
    1203 17 40 12 0.6 8 2.01 16000 20000 0.31 3.1 2 2.1 0.072

     

    DESIGN, TYPES, AND FEATURES

    The outer ring of a self-aligning ball bearing has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. This type is recommended when the alignment of the shaft and housing is difficult and when the shaft may bend. Since the contact angle is small, axial load capacity is low.
    Pressed-steel cages are usually used.


     

     

    PROTRUSION AMOUNT

     Some self-aligning ball bearings have balls that protrude from the side face as shown below. This protrusion amount b1 is listed in the following table.


     

     

     

     

    PERMISSIBLE MISALIGNMENT

     The permissible misalignment of self-aligning ball bearings is approximately 0.07 to 0.12 radian (4° to 7°) under normal loads. However, depending on the surrounding structure, such an angle may not be possible. Take care in the design of the bearing surroundings.

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