Since these bearings have a contact angle, they can sustain
significant axial loads in one direction together with radial
loads. Because of their design, when a radial load is applied, an
axial force component is produced; therefore, two opposed bearings
or a combination of more than two must be used.
Since the rigidity of single-row angular contact ball bearings can
be increased by preloading, they are often used in the main
spindles of machine tools, for which high running accuracy is
Usually, the cages for angular contact ball bearings with a contact
angle of 30° (Symbol A) or 40°(Symbol B) are in accordance with
Table 1,but depending on the application, machined synthetic resin
cages or molded polyamide resin cages are also used.
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
polyamide cages are used.
The maximum operating temperature of molded polyamide cages is
DOUBLE-ROW ANGULAR CONTACT BALL BEARINGS
This is basically a back-to-back mounting of two single-row angular
contact ball bearings, but their inner and outer rings are each
integrated into one. Axial loads in both directions can be
sustained, and the capacity to sustain moments is good. This type
is used as fixed-end bearings. Their cages are pressed steel.
FOUR-POINT CONTACT BALL BEARINGS
The inner ring is split radially into two pieces. Their design
allows one bearing to sustain significant axial loads in either
direction. The contact angle is 35°, so the axial load capacity is
high. This type is suitable for carrying pure axial loads or
combined loads where the axial loads are high. The cages are made
of machined brass.
Single-row angular contact ball bearing - suited to work in lower
operating temperature and high speed with a heavy thrust load. Can
be mounted in a duplex arrangement. The refined bore tolerance give
a higher life.
Double-row angular contact ball bearing - excellent axial and
radial rigidity in confined space.
Features of Angular contact ball bearing:
1. Model: All kinds of Self-Aligning Roller Bearing(include small
size, middle size, big size huge size)
22205 - 22220, 22308 -22320, 113000 series 153000 series
2. Materials: GCR15, GCR11
Ring and cages: Chrome bearing steel
Balls: Chrome steel or carbon structural steel
Cover: Rubber or metal
3. Typical applications: Electric motors, automotive applications,
home appliances and industrial equipment,etc
4. Precision Level: P0, P6, P5(ABEC-1, ABEC-3, ABEC-5)
5. Noise Level: Z1, Z2, Z3;
6. Vibration Level: V1, V2, V3;
7. Packing: Bulk single color box/ tube/carton/pallet or
8. Certification: ISO 9000/9001/9004/19011: 2000 ISO 14000/14001,