7321 BECBP
Single Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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7321 BECBP Bearing Product Overview & Core Advantages
The 7321 BECBP is a single row angular contact ball bearing designed for high-precision applications requiring exceptional performance under combined loads. This precision bearing features a 40° contact angle, optimized for supporting significant axial loads in one direction alongside radial loads. Manufactured to P6 (ABEC-3) tolerance class, it ensures high running accuracy and reliability. Its open design allows for custom lubrication schemes, making it suitable for high-speed spindles and other demanding machinery where superior rigidity and precise rotational characteristics are paramount.
7321 BECBP Bearing Model Code Explained, Specifications & Naming Convention
- 7321: Basic designation indicating a metric series angular contact ball bearing with a 105 mm bore and 225 mm outside diameter.
- BE: Denotes a 40° contact angle and an optimized internal design for high axial load capacity.
- C: Indicates the internal clearance group is C3, providing greater than normal internal clearance for specific application fits and thermal expansion.
- BP: Specifies a Nylon (Polyamide) cage, also known as a snap-type cage. This lightweight cage contributes to lower friction, quieter operation, and is suitable for high-speed applications.
7321 BECBP Bearing Structural Features & Performance Benefits
High Load Capacity & Rigidity: The single row design with a steep 40° contact angle is engineered to handle heavy axial loads in one direction and simultaneous radial loads, providing high system rigidity.
High-Speed Performance: The lightweight and robust Nylon (BP) cage minimizes centrifugal forces, reduces friction, and enables a high limiting speed of 3,800 rpm, making it an excellent high-speed bearing choice.
Precision Engineering: Manufactured to P6 tolerance, this bearing guarantees precise shaft guidance and minimal runout, which is critical for applications like machine tool spindles.
Material & Lubrication: Constructed from high-grade Chrome Steel for both rings and balls, ensuring durability and long service life. The open seal type allows for the use of specialized high-performance lubricants tailored to the application's speed and temperature requirements.
7321 BECBP Bearing Typical Application Areas
The 7321 BECBP is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural Machinery
- Material Handling Equipment
