7311 BEP
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
7311 BEP
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.4 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.013mm to 0
Width
29 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2 mm
Contact angle
40 °
Distance from side face to load point
51 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
80.3 mm
Inner ring small-side shoulder diameter
66.66 mm
Outer Ring Dimensions
Shoulder diameter outer ring
96.6 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
17842 lbf
Radial static load rating
12375 lbf
Limiting speed
6.7 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 40.26
/ each
In Stock
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7311 BEP Bearing Product Overview & Core Advantages
The 7311 BEP is a single row angular contact ball bearing engineered for applications requiring high precision and reliable performance under combined loads. This metric bearing is characterized by its ability to support significant radial loads and unidirectional axial loads simultaneously, thanks to its defined 40° contact angle. Manufactured to a P6 (ABEC-3) tolerance class, it ensures high running accuracy and is pre-lubricated for immediate use. Its compact design and high limiting speed make it an ideal choice for demanding, high-speed machinery.
7311 BEP Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| BE | Indicates an increased 40° contact angle and optimized internal design for higher axial load capacity. |
| P | Designates a glass fiber reinforced nylon cage, which contributes to quiet operation, low friction, and excellent performance at high speeds. |
7311 BEP Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The single row design with a steep 40° contact angle provides excellent resistance to combined (radial and axial) loads, ensuring stable and rigid support for shafts.
- Optimized High-Speed Performance: The lightweight and robust nylon cage (P) minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 6,700 rpm. The optimized internal geometry further enhances high-speed capability.
- Precision & Reliability: Manufactured to P6 tolerance, this bearing guarantees high running accuracy and consistent performance. The open seal type allows for easy re-lubrication in service, extending operational life.
- Material Integrity: Constructed from high-grade chrome steel for both rings and balls, the bearing offers high durability, wear resistance, and a long service life under demanding conditions.
7311 BEP Bearing Typical Application Areas
This angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural Machinery
- Material Handling Equipment
