7311 BEGBM
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
7311 BEGBM
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
19125 lbf
Radial static load rating
13500 lbf
Limiting speed
9 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
Price:
$ 46.67
/ each
In Stock
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7311 BEGBM Bearing Product Overview & Core Advantages
The 7311 BEGBM is a single row angular contact ball bearing engineered for applications requiring high precision and reliability. This metric bearing is designed to accommodate combined loads, efficiently handling significant radial loads and unidirectional axial loads simultaneously. Its optimized 40° contact angle and P6 (ABEC-3) tolerance class ensure exceptional running accuracy and high-speed performance, making it an ideal choice for demanding industrial environments. The bearing is pre-lubricated for immediate use and offers a wide operating temperature range.
7311 BEGBM Bearing Model Code Explained, Specifications & Naming Convention
The model number 7311 BEGBM can be broken down as follows to understand its technical specifications:
- 7311: Basic series number indicating a medium series, single row angular contact ball bearing with a 55 mm bore diameter.
- B: Denotes a 40° contact angle, optimized for higher axial load capacity.
- E: Signifies an optimized internal design, including reinforced shoulders and a larger ball complement, for increased load capacity.
- G: Indicates the use of a brass cage, which provides high strength and is suitable for high-speed applications.
- BM: Specifies that the bearing is supplied with an electroplated manganese phosphate coating. This coating offers enhanced corrosion resistance, reduces friction during initial run-in, and is compatible with various lubricants.
7311 BEGBM Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The single row design with a 40° contact angle and the reinforced "E" type internal construction enable the bearing to support high radial and unidirectional axial loads with superior rigidity.
- High-Speed Capability: The machined brass cage (G) ensures dimensional stability and low friction at high rotational speeds, contributing to a high limiting speed of 9,000 rpm.
- Precision Performance: Manufactured to a P6 (ABEC-3) tolerance class, this bearing guarantees precise shaft guidance and low running noise and vibration, which is critical for precision applications.
- Enhanced Service Life: The manganese phosphate coating (BM) on the bearing surfaces provides excellent run-in characteristics and supplemental corrosion protection, extending the bearing's operational lifespan.
7311 BEGBM Bearing Typical Application Areas
The 7311 BEGBM is ideally suited for a wide range of industrial machinery and equipment where high precision, speed, and load capacity are paramount. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Pumps and Compressors
- Gearboxes and Drive Systems
- Precision Agricultural Equipment
