HS71921-E-P2-DB

HS71921-E-P2-DB · Product image

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HS71921-E-P2-DB · Technical drawing

Brand
QIBR
Alternative brand
FAG
Rolling element type
Ball
Measurement system
Metric
Precision level
P2
Vibration grade
ZV4
Outer diameter
145 mm
Inner diameter
105 mm
Total width
20 mm
Chamfer dimension
1.1 mm
Weight
0.90 kg
Contact angle
25°
Load direction
Axial and radial
Inner diameter tolerance
0 to -5 µm
Outer diameter tolerance
0 to -5 µm
Width tolerance
0 to -200 µm
Temperature
-30 ℃ to +110 ℃
Lubrication speed
9000 rpm
Oil speed
15000 rpm
Seal type
Open Type
Ring material
52100
Rolling element material
52100
Basic dynamic load rating
28.00 kN
Basic static load rating
35.50 kN

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Description

Spindle bearings are critical components in machine tools, industrial robots, and high-speed rotating equipment, primarily used to support and guide spindle rotation. Common types include angular contact ball bearings, cylindrical roller bearings, and hybrid ceramic bearings, which offer high precision, high rigidity, and low friction. They meet the demands of high speed, heavy load, and superior stability, playing a crucial role in precision machining, aerospace, and automation industries.

QIBR - HS71921-E-P2-DB Angular Contact Ball Bearing Advantages and Applications

HS71921-E-P2-DB Angular Contact Ball Bearing, low noise, high speed capability,Inner diameter is 105 mm,Outer diameter is 145 mm,Total width is 20 mm,Weight is 0.90 kg, suitable for small car front wheels, differential pinion shafts, booster pumps and drilling platforms, etc., and is the most widely used bearing in conditions requiring high speed.

QIBR - HS71921-E-P2-DB Angular Contact Ball Bearing Characteristics

HS71921-E-P2-DB Angular Contact Ball Bearing, stable performance, not easy to damage, simple maintenance. HS71921-E-P2-DB Angular Contact Ball Bearing, can bear radial load and certain axial load at the same time, suitable for mechanical equipment with high performance requirements.

HS71921-E-P2-DB 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 - HS71921-E-P2-DB 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 - HS71921-E-P2-DB 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.

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