Angular contact ball bearing types:

7000C (∝=15°), 7000AC (∝=25°) and 7000B(∝=40°).

Accuracy level: P0(common), P6(P6X), P5, P4, P2.

Main uses:

Single row angular contact ball bearings: machine spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, dividing head, welding machine, low noise type cooling tower, mechanical and electrical equipment, painting equipment, machine slot plate, arc welding machine, etc.

Suffix definition:

B: Modified internal structure

MP: Machined window brass cage

TVP: glass fiber reinforced nylon cage

UA: General structural design for mounting bearings in pairs, small axial clearance bearing groups

UO: Universal structural design for paired mounting bearings, zero axial clearance bearing sets

DA: Double half inner ring (double row angular contact ball bearing)

TVH: Glass fiber reinforced polyamide cage, steel ball guide

Note:

The service life of high-speed precision angular contact ball bearings has a great relationship with the installation, and the following matters should be paid attention to:

1. Bearing installation should be carried out in a dust-free and clean room, bearings should be carefully selected, bearing spacers should be ground, under the premise of maintaining the height of the inner and outer spacers, the parallelism of the spacers should be controlled below 1um; 

2. The bearing should be cleaned before installation, the inner ring slope is upward when cleaning, the hand sensor is flexible, no sense of stagnation, after drying, put specified amount of grease, such as oil mist lubrication should be put into a small amount of oil mist; 

3. Special tools should be used for bearing installation, with uniform force and no beating. 

4. Bearing storage should be clean and ventilated, no corrosive gas, relative humidity does not exceed 65%, long-term storage should be regular rust prevention.