NTN Angular Contact Ball Bearing , 7230

Description






Item # d D B r Static Load Rating Dynamic Load Rating
7230 5.9055 in
150.000 mm
10.6299 in
270.000 mm
1.7717 in
45.000 mm
0.1181 in
3.000 mm
58000 lbf
259000 N
259.00 kN
52000 lbf
232000 N
232.00 kN



1. Design features and characteristics

1.1  Angular contact ball bearing

Angular contact ball bearings are non-separable bearings with a defined contact angle in the radial direction relative to the straight line that runs through the point where each ball makes contact with the inner and outer rings (see Fig. 1). Table 1 provides information on contact angles and their designated codes.

In addition to radial loads, angular contact ball bearings can accommodate single direction axial loads. Since an axial load is generated from a radial force, these bearings are generally used in pairs. Table 2 shows general angular contact ball bearing characteristics, Table 3 shows information on using duplex (side by side) angular contact ball bearings, and Table 4 shows information on multiple-row angular contact ball bearings.

For bearings with a contact angle of 15° and bearing tolerance JIS Class 5 or higher, see special catalog “Precision rolling bearings (CAT. No. 2260/E)”.

 

 

1.2  Four-point angular contact ball bearings


Four-point angular contact ball bearings have a contact angle of 30° and a split inner ring. As shown in Fig. 2, when the inner and outer rings receive a radial load, the ball contacts the inner and outer rings at four points. This construction enables a single bearing to accommodate axial loads from either direction, and when under a simple axial load or heavy axial load, the bearing relies on two contact points like ordinary bearings.


 

1.3  Double row angular contact ball bearings

The structure of double row angular contact ball bearings is designed by arranging two single row angular contact bearings back-to-back in duplex (DB) to form a single bearing with a contact angle of 25°.
These bearings are capable of accommodating radial loads, axial loads in either direction, and have a high capacity for moment loads.
As shown in Fig. 4, sealed and shielded type double row angular contact ball bearings are also available. Standard loads vary from those of open type bearings.

 



 


Product form

Item # d D B r Static Load Rating Dynamic Load Rating 7230 5.9055 in 150.000 mm 10.6299 in 270.000... Read more

SKU: 7230

$746.13 Excl. VAT

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    Description






    Item # d D B r Static Load Rating Dynamic Load Rating
    7230 5.9055 in
    150.000 mm
    10.6299 in
    270.000 mm
    1.7717 in
    45.000 mm
    0.1181 in
    3.000 mm
    58000 lbf
    259000 N
    259.00 kN
    52000 lbf
    232000 N
    232.00 kN



    1. Design features and characteristics

    1.1  Angular contact ball bearing

    Angular contact ball bearings are non-separable bearings with a defined contact angle in the radial direction relative to the straight line that runs through the point where each ball makes contact with the inner and outer rings (see Fig. 1). Table 1 provides information on contact angles and their designated codes.

    In addition to radial loads, angular contact ball bearings can accommodate single direction axial loads. Since an axial load is generated from a radial force, these bearings are generally used in pairs. Table 2 shows general angular contact ball bearing characteristics, Table 3 shows information on using duplex (side by side) angular contact ball bearings, and Table 4 shows information on multiple-row angular contact ball bearings.

    For bearings with a contact angle of 15° and bearing tolerance JIS Class 5 or higher, see special catalog “Precision rolling bearings (CAT. No. 2260/E)”.

     

     

    1.2  Four-point angular contact ball bearings


    Four-point angular contact ball bearings have a contact angle of 30° and a split inner ring. As shown in Fig. 2, when the inner and outer rings receive a radial load, the ball contacts the inner and outer rings at four points. This construction enables a single bearing to accommodate axial loads from either direction, and when under a simple axial load or heavy axial load, the bearing relies on two contact points like ordinary bearings.


     

    1.3  Double row angular contact ball bearings

    The structure of double row angular contact ball bearings is designed by arranging two single row angular contact bearings back-to-back in duplex (DB) to form a single bearing with a contact angle of 25°.
    These bearings are capable of accommodating radial loads, axial loads in either direction, and have a high capacity for moment loads.
    As shown in Fig. 4, sealed and shielded type double row angular contact ball bearings are also available. Standard loads vary from those of open type bearings.

     



     


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