Recommend Best Selling High Quality Single Row Angular Contact Ball Bearing 71811

Recommend best selling high quality single row angular contact ball bearing 71811Angular contact ball bearings performanceZYS angular contact ball bearings can bear radial load and one direction axial load. When the bearing withstands radial loads, axial force will be generated on inner ring. Therefore, the single-row angular contact ball bearings are often used with other bearings which can withstand axial load in the opposite direction. That is, angular contact ball bearings are commonly used in pair, or in groups with three, four and even five bearings.

1. Contact angles ofZYS angular contact ball bearings
The contact angles of ZYS angular contact ball bearings for machine tool are 15° and 25°. The bearing with 15° contact angle is used when the high speed and light axial load are needed, while the 25° contact angle bearing should be adopted on the contrary.

2. Four dimension series ofZYS angular contact ball bearings
The precision angular contact ball bearings for spindles have four dimension series, 718, 719, 70 and 72. With the same inner diameter, the outer diameter and the width of 718, 719, 70 and 72 increase in sequence.

Table 1. The types and performance of ZYS angular contact ball bearings

ZYS angular contact ball bearing seriesStructuresDimension seriesBore size rangePerformanceHigh precision angular
contact ball bearing718 C
718 AC
719 C
719 AC
70 C
70 AC
72 C 72 AC718:10~360mm
719:8~460mm
70: 8~380mm 72: 8~220mmHigh speed;
Large loading capacity;
Suit for grease
or oil-mist lubricationHigh speed angular contact ball
bearing(incl. hybrid ball bearing)H719 C
H719 AC
H70 C
H70 AC
H719 C/HQ1
H719 AC/HQ
H70 C/HQ1
H70 AC/HQ1H719:8~220mm
H70:8~220mm
H719/HQ1:8~220mm H70/HQ1:8~220mmSuper speed;
High rigidity;
Suit for air-oil or oil injection lubricationSuper speed angular contact ball
bearing(incl. hybrid ball bearing)HS719 C
HS719 AC
HS70 C
HS70 AC
HS719 C/HQ1
HS719 AC/HQ
HS70 C/HQ1 HS70 AC/HQ1HS719:8~220mm
HS70:8~220mm
HS719/HQ1:8~220mm
HS70/HQ1:8~220mmSuper speed
(higher than H series);
High rigidity;
Suit for air-oil or oil injection lubricationSuper speed angular contact ball bearing with
direct lubrication(incl. hybrid ball bearing)H719 C-DL
H719 AC-DL
H70 C-DL
H70 AC-DL
H719 C/HQ1-DL
H719 AC/HQ-DL
H70 C/HQ1-DL
H70 AC/HQ1-DLH719-DL:20~220mm
H70-DL:30~220mm
H719/HQ1-DL:20~220mm
H70/HQ1-DL:30~220mmSuper speed (higher than H and HS series);
High rigidity;
Suit for direct lubricationHigh speed sealed angular contact ball
bearing(incl. hybrid ball bearing)B719 C-2RZ
B719 AC-2RZ
B70 C-2RZ
B70 AC-2RZ
B70 C-2RZ/HQ1
B719 AC-2RZ/HQ1
B70 C-2RZ/HQ1
B70 AC-2RZ/HQ1B719-2RZ:10~220mm
B70-2RZ:10~220mm
B719-2RZ /HQ1:10~220mm
B70-2RZ /HQ1:10~220mmHigh speed;
High rigidity;
Grease lubricationHigh speed bearings for inner diameter
grinding spindles (incl. hybrid ball bearing)B70 C
B70 C/HQ1B70 C:10~60mm
B70 C /HQ1:10~60mmSuper speed;
High rigidity;
Suit for oil mist lubrication

3. Application ofZYS angular contact ball bearings:
•Machine tool spindle
•high-frequency motor
•Robot technology
•gas turbine
•centrifuge
•small-size automobile front wheels
•differential pinion shaft

4. Advantages ofZYS angular contact ball bearings:
As an important type of machine tool bearing, ZYS angular contact ball bearing has the following advantages:

The chamfer arc radius of rings is reasonable, which is not only convenient to install, but also guaranteed to improve the installation precision and reduce the risk of the related parts being bumped;•The speed performance is outstanding
•Unique heat treatment process allows products to achieve the best dimensional stability and rigidity, so as to reduce wear and tear;
•Multiple pre-load levels can help to meet different requirements for speed and system stiffness, which is more reasonable to select and use the levels.
ZYS Advantage
ZYS has a strong strength of manufacturing high-precision and high-reliability bearings and relevant parts. ZYS company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments,but also has strong strength of manufacturing,inspecting and testing the high-precision and high-reliability bearings and relevant spare parts.In the meantime,it always keeps a leading position in bearing basic theory,lubrication technology,design,material,test,information criterion and other aspects.