Iso 5948 Pdf

To understand why this standard matters, let's examine its core technical clauses (as found in the official ISO 5948 PDF).

ISO 5948 is an international standard that specifies the requirements for plain bearings, also known as bushings or journal bearings. The standard covers the design, materials, and testing of plain bearings used in various applications, including mechanical, electrical, and industrial equipment.

The document is structured to provide a technical framework for manufacturers and safety inspectors: Scope & Application

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Buying the official PDF guarantees you have the final, corrected, and legally valid version of the standard. It is an essential investment for compliance, safety, and legal protection. Any method offering "free ISO downloads" is operating illegally and should be avoided.

Usually ranges between 1 MHz and 5 MHz, depending on the material structure and the grain size of the steel.

: If you are working in engineering or manufacturing, your organization may have a subscription to standards databases like IHS Markit or ASTM Compass . Technical Context To understand why this standard matters, let's examine

The standard details the direction and paths the ultrasonic beams must take. Components like axles require both longitudinal and transverse scanning to catch defects oriented in different planes. 4. Acceptance Criteria

Monobloc wheels, wheel tires, and wheel centers.

The ISO 5948 standard offers several benefits to manufacturers, designers, and users of plain bearings: The document is structured to provide a technical

If you are currently writing a procedure or specification, do not reference ISO 5948. You should reference EN 13698-2 for acceptance levels or the component-specific standards (EN 13261 for axles, EN 13262 for wheels) which contain the most up-to-date acceptance criteria tables.

The standard defines the ultrasonic inspection procedures used to detect internal defects—such as discontinuities, cracks, inclusions, and voids—in the steel components used to build railway rolling stock. This primarily includes critical components subjected to extreme, cyclic dynamic stresses, such as: (traction and trailer axles) Wheelsets Solid wheels Wheel tires

The tests must be performed by qualified personnel trained in ultrasonic testing techniques, ensuring that interpreting the results (e.g., distinguishing between allowable inclusions and critical cracks) is accurate. 2. Testing Equipment and Calibration

The standard defines a specific beam pattern on a vertical screen placed 25 meters (or a defined distance) in front of the headlamp.