Rolling Bearing English Terminology
Below is a detailed list of rolling bearing terminology in English, along with explanations for better understanding. Rolling bearings are essential components used in machinery to reduce friction and support moving parts. They allow relative motion between two surfaces by using rolling elements instead of sliding. These bearings consist of raceways and rolling elements, which can be guided or unguided.
Single Row (Rolling) Bearing: A bearing that contains one row of rolling elements, such as balls or rollers. It is commonly used in applications where axial and radial loads are present but not extreme.
Double Row (Rolling) Bearing: This type of bearing has two rows of rolling elements, offering higher load capacity and improved stability compared to single-row bearings. It is ideal for heavy-duty applications.
Multi-Row (Rolling) Bearing: Bearings with more than two rows of rolling elements, designed to handle high loads in the same direction. These are often used in specialized industrial equipment.
Full Complement (Rolling) Bearing: These bearings do not have a cage to separate the rolling elements. The clearance between the elements is smaller than the diameter of the rolling elements, ensuring efficient performance and durability.
Angular Contact (Rolling) Bearing: Bearings with a nominal contact angle greater than 0° but less than 90°, allowing them to handle both radial and axial loads effectively. Commonly used in high-speed applications.
Rigid (Rolling) Bearing: A bearing that does not accommodate misalignment. It is designed for precise alignment and is typically used in applications where shaft alignment is critical.
Self-Aligning (Rolling) Bearing: These bearings have a spherical raceway that allows for slight misalignment between the inner and outer rings, making them suitable for applications with potential angular or positional errors.
Separable (Rolling) Bearing: Bearings that can be disassembled into separate components, making them easier to install and maintain.
Non-Separable (Rolling) Bearing: Once assembled, these bearings cannot be easily disassembled without damaging the components. They are often used in compact designs where space is limited.
Split (Rolling) Bearing: These bearings are designed to split into two halves, allowing for easy installation in existing housings without removing the shaft.
Metric (Rolling) Bearing: Bearings designed using metric units for dimensions and specifications, following international standards.
Inch (Rolling) Bearing: Bearings manufactured with inch-based measurements, often used in older or specific industrial applications.
Open Type (Rolling) Bearing: Bearings without seals or covers, allowing for easy access but requiring regular maintenance to prevent contamination.
Sealed (Rolling) Bearing: Bearings equipped with seals on one or both sides to protect against dust and moisture, extending their service life.
Shielded (Rolling) Bearing: Bearings with shields on either side to prevent dust and debris from entering, while still allowing for some lubrication access.
Closed (Rolling) Bearing: Bearings that have sealing rings and/or dust covers on both sides, providing maximum protection against external contaminants.
Prelubricated (Rolling) Bearing: Bearings that come pre-filled with lubricant, reducing the need for additional maintenance during installation.
Aircraft Frame (Rolling) Bearing: Designed specifically for use in aircraft systems, including control mechanisms, these bearings are built to withstand extreme conditions and high precision requirements.
Instrument Precision (Rolling) Bearing: Bearings used in precision instruments and measuring devices, where accuracy and smooth operation are crucial.
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