Zys Angular Contact Ball Bearing with P5 Accuracy Class

• Contact Angle: 15°
• Aligning: Aligning Bearing
• Separated: Unseparated
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Model NO.: 72 series
• Outer Diameter: 90mm
• Load Rating: P4/P2/P5
• Inner Diameter: 55mm
• Breadth: 18mm
• Loading Rating: Cr:19.9kn Cor:12.9kn
• Limiting Speed: Grease:19000r/Min Oil:32000r/Min
• Weight: Abou0.41kg
• Rolling Body: Ball Bearings
• Number of Rows: Single
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Transport Package: Standard Package for Angular Contact Ball Bearings
• Specification: dimension for angular contact ball bearings
• Trademark: ZYS
• Origin: Luoyang, Henan, China
• Production Capacity: 1000000 PCS/Year

Product Description

ZYS angular contact ball bearing with P5 accuracy class 

Angular contact ball bearings performance

ZYS 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 of ZYS 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 of ZYS 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 series	Structures	Dimension series	Bore size range	Performance
High precision angular contact ball bearing		718 C 718 AC  719 C 719 AC  70 C 70 AC  72 C 72 AC	718:10~360mm  719:8~460mm  70: 8~380mm 72: 8~220mm	High speed; Large loading capacity; Suit for grease  or oil-mist lubrication
High 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/HQ1	H719:8~220mm  H70:8~220mm  H719/HQ1:8~220mm H70/HQ1:8~220mm	Super speed; High rigidity; Suit for air-oil or oil injection lubrication
Super 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/HQ1	HS719:8~220mm  HS70:8~220mm  HS719/HQ1:8~220mm  HS70/HQ1:8~220mm	Super speed (higher than H series); High rigidity; Suit for air-oil or oil injection lubrication
Super 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-DL	H719-DL:20~220mm  H70-DL:30~220mm  H719/HQ1-DL:20~220mm  H70/HQ1-DL:30~220mm	Super speed (higher than H and HS series);  High rigidity; Suit for direct lubrication
High 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/HQ1	B719-2RZ:10~220mm  B70-2RZ:10~220mm  B719-2RZ /HQ1:10~220mm  B70-2RZ /HQ1:10~220mm	High speed; High rigidity; Grease lubrication
High speed bearings for inner diameter grinding spindles (incl. hybrid ball bearing)		B70 C B70 C/HQ1	B70 C:10~60mm B70 C /HQ1:10~60mm	Super speed; High rigidity; Suit for oil mist lubrication

3. Application of ZYS 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 of ZYS 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.