Machine for spindle   contact ball bearing 7306

What is mean of  Angle angular contact ball bearing?

Angle is bearing stress direction and the vertical Angle.

Angle is smaller, bearing of the radial force is bigger, the smaller the axial force

Commonly used 15 degree is high precision, high speed, which mainly bear radial force and a small number of axial force of angular contact ball bearing

25 degrees and 30 degrees Angle bear radial force relative is big

Forty degrees Angle of the bearing of the axial force is the largest, suitable for axial load and equipment installed in a vertical occasions

Features:

1) Load capacities are higher than deep groove ball bearings of same dimensions

2) Used for bearing radial-axial combined loads or pure thrust loads

3) Low operating friction and high limiting speed

Single-row angular contact ball bearing - suited to work in lower operating temperature and high speedwith a heavy thrust load. Can be mounted in a duplex arrangement. The refined bore tolerance give a higherlife.
Double-row angular contact ball bearing - excellent axial and radial rigidity in confined space.

Angular Contact Ball Bearings with contact angles of 15° (Symbol C) and 25° (Symbol A5) are primarily for high precision or high speed applications, and machined brass or synthetic resin cages or molded polyamidecages are used.