Overview
ISO 5753-2:2010 is an international standard published by the International Organization for Standardization (ISO) that specifies the axial internal clearance values for four-point-contact ball bearings with a contact angle of 35°. These bearings are designed to support axial loads in both directions and are primarily used in applications requiring reliable axial load support without external preloading.
This standard is a critical reference for manufacturers, engineers, and users of four-point-contact ball bearings, providing consistent and reliable measurement guidelines and clearance values to ensure optimal bearing performance across various industrial applications.
Key Topics
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Axial Internal Clearance Definition
Axial internal clearance refers to the average axial displacement possible between the bearing rings without applying external loads. This clearance affects the bearing's load capacity, friction, noise, and service life.
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Four-Point-Contact Ball Bearings
These bearings feature a single row of balls that contact the raceways at four points under radial load conditions, giving them the ability to support axial loads in both directions effectively.
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Contact Angle 35° Specification
The standard specifically addresses bearings with a 35° contact angle, which influences load distribution and clearance measurements.
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Measurement and Tolerances
ISO 5753-2:2010 provides precise numerical values and tolerance ranges for axial internal clearance based on bearing bore diameter (up to 1000 mm), organized into groups for measurement consistency.
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Use Cases
Bearings covered by this standard are typically non-preloaded and capable of axial load support without external forces affecting the bearing clearance.
Applications
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Industrial Machinery
Four-point-contact ball bearings complying with ISO 5753-2:2010 are widely used in heavy-duty industrial equipment where axial load demands are significant, such as in machine tools, pumps, and compressors.
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Automotive and Aerospace
These bearings help maintain mechanical precision and load capacity in automotive steering systems and aerospace mechanisms requiring axial load handling.
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Electric Motors and Generators
They contribute to the efficient operation of electric motors and generators by providing stable axial positioning and load resistance.
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Robotics and Automation
Precise bearing clearance ensures smooth motion and longevity in robotic joints and automated equipment handling axial stresses.
Using bearings with axial internal clearance values that meet ISO 5753-2:2010 standards ensures reliability, reduces wear, and improves maintenance scheduling in these and other applications.
Related Standards
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ISO 5753-1:2010
Specifies the radial internal clearance values for radial bearings, complementing the axial clearance specifications in part 2.
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ISO 1132-1:2000
Defines terms and definitions related to bearings, including clearance measurement and bearing types.
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ISO 5593
Provides a comprehensive vocabulary for rolling bearings.
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ISO 15241
Covers the symbols related to bearing properties used in technical documentation.
Together, these standards form a comprehensive framework for bearing design, measurement, and application, promoting global consistency and quality assurance in rolling bearing technology.
By adhering to ISO 5753-2:2010 guidelines, manufacturers and users can optimize bearing selection and maintenance practices, ensuring efficient performance and operational safety in various engineering environments.
Open preview (PDF)Rolling bearings — Internal clearance — Part 2: Axial internal clearance for four-point-contact ball bearings