7248 BCBM

Single Row Angular Contact Ball Bearings

7248 BCBM Single Row Angular Contact Ball Bearings
7248 BCBM Single Row Angular Contact Ball Bearings

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Part No.
Part No. 7248 BCBM

Basic Information

Bearing type Ball
System of measurement Metric
Construction Single Row
Weight 49 kg
Tolerance class P6 (ABEC-3)
Seal type Open
For load direction Angular Contact

Main Dimensions

Bore diameter 240 mm
Bore diameter tolerance -0.022mm to 0
Outside diameter 440 mm
Outside diameter tolerance -0.033mm to 0
Width 72 mm
Width tolerance -0.05mm to 0
Chamfer dimension 4 mm
Contact angle 40 °
Distance from side face to load point 180 mm

Inner Ring Dimensions

Inner ring large-side shoulder diameter 322.6 mm
Inner ring small-side shoulder diameter 292.62 mm

Outer Ring Dimensions

Shoulder diameter outer ring 360.41 mm

Performance

Temperature range -30° to 110 °C
Radial dynamic load rating 81900 lbf
Radial static load rating 121500 lbf
Limiting speed 1.7 X 1000 rpm
Lubrication Lubricated

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Brass

Environment & Compliance

REACH Compliant
ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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7248 BCBM Bearing Product Overview & Core Advantages

The 7248 BCBM is a single row angular contact ball bearing engineered for applications requiring exceptional precision and reliability. This metric bearing features a 40° contact angle, optimized to handle significant combined loads—simultaneously supporting high radial loads and substantial axial loads in one direction. Manufactured to P6 (ABEC-3) tolerance class, it delivers superior running accuracy and dimensional stability. Its robust construction from chrome steel components ensures high durability and long service life in demanding operational environments.

7248 BCBM Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
7248 Standard bearing series designation, indicating the bearing dimensions (240mm bore, 440mm OD, 72mm width).
BC Indicates a 40° contact angle, providing optimal axial load capacity and rigidity.
BM Signifies a brass cage (machined), offering high strength, excellent guidance, and suitability for high-speed applications.

7248 BCBM Bearing Structural Features & Performance Benefits

  • High Rigidity & Load Capacity: The single row design with a 40° contact angle provides high rigidity and is specifically engineered to handle combined radial and axial loads efficiently. The optimized internal geometry ensures stable operation under heavy loads.
  • Precision Performance: Manufactured to P6 tolerance class, this bearing guarantees precise shaft positioning and minimal runout, making it ideal for precision machinery.
  • High-Speed Capability: The brass machined cage (BM) ensures stable ball guidance and low friction, contributing to a high limiting speed of 1,700 rpm. The open design allows for efficient lubrication management.
  • Durability & Material Quality: Constructed from high-grade chrome steel for both rings and balls, the bearing offers excellent wear resistance and fatigue life. It is pre-lubricated for immediate operation.

7248 BCBM Bearing Typical Application Areas

The 7248 BCBM angular contact ball bearing is ideally suited for heavy-duty industrial applications requiring high precision and reliability, including:

  • Machine Tool Spindles
  • Industrial Gearboxes
  • Pumps and Compressors
  • Material Handling Equipment
  • Precision Agricultural Machinery
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