QJ308

QIBR - QJ308 Angular Contact Ball Bearing Advantages and Applications

QJ308 Angular Contact Ball Bearing, contact angle design, high load-bearing capacity, Inner diameter is 40 mm，Outer diameter is 90 mm，Total width is 23 mm，Weight is 0.78 kg， suitable for machine tool spindles, high-frequency motors, gas turbines and centrifugal separators, etc., and is the most widely used bearing in working conditions with high load-bearing capacity requirements.

QIBR - QJ308 Angular Contact Ball Bearing Characteristics

QJ308 Angular Contact Ball Bearing, long service life, high cost performance. QJ308 Angular Contact Ball Bearing, can bear radial load and certain axial load at the same time, suitable for mechanical equipment with high load requirements.

QJ308 Angular Contact Ball Bearing Product Features and Advantages

High load capacity: It can withstand large radial and axial forces, and adopts high-strength steel and precision processing technology, with strong load-bearing capacity.

Good structural rigidity: The contact angle of the inner and outer rings is large, the structural rigidity is good, and stable operation is maintained under high load.

High positioning accuracy: The inner and outer rings have high matching accuracy, which can provide accurate positioning and centering functions.

High-speed operation performance: It has a low friction coefficient and high speed capability, suitable for high-speed operation applications.

Application: It has a wide range of applications in machine tool manufacturing, automotive industry, aerospace, motors and generators, robotics, medical equipment, automation equipment and other fields.

QIBR - QJ308 Angular Contact Ball Bearing Optimization

Optional Contact Angles: Depending on the operating conditions, different contact angles can be selected, such as 15°, 18°, 25°, or 40°.

High-Performance Materials: The bearing materials can be replaced according to different operating conditions, with options like SKF III, ZGcr15, high-purity bearing steel, ceramics, stainless steel, and other materials.

Grease Replacement: Select the lubrication based on the bearing's working requirements, such as LUBCON L252, Multemp SRL, or KLUBER ISOFLEX NBU 15.

Process parameter optimization: Optimize the processing parameters, such as grinding speed, feed speed, cutting depth, etc. to improve processing efficiency and quality.

More customization: QIBR can design and optimize the bearing according to customer requirements for drawings and bearing working conditions.

QIBR - QJ308 Angular contact ball bearing quality control

Dimension measurement: Use a variety of professional high-precision instruments to measure multiple dimensions of the bearing, with a maximum accuracy of 0.001mm.

Rotation accuracy: Use a micrometer to measure small flaws or deviations on the bearing surface, with a measurement accuracy of up to 0.001mm.

Hardness measurement: Use a hardness tester to measure the surface hardness of the bearing, with a measurement accuracy of up to ±0.5HRC.

Metallographic analysis: Use a professional metallographic microscope to analyze the internal metallographic structure of the metal.

Geometric tolerance: Use a profiler to measure the bearing geometry and relative position.

Noise monitoring: Vibration during operation is monitored by a vibration meter to obtain noise data.

Raw material control: Steel and parts are purchased from suppliers certified by ISO 14001 to ensure product stability and promote sustainable development.