7318 BECBJ
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
7318 BECBJ
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
5.2 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
190 mm
Outside diameter tolerance
-0.02mm to 0
Width
43 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
3 mm
Contact angle
40 °
Distance from side face to load point
80 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
129.2 mm
Inner ring small-side shoulder diameter
108.97 mm
Outer Ring Dimensions
Shoulder diameter outer ring
153.1 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
37350 lbf
Radial static load rating
32850 lbf
Limiting speed
4.5 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 130.13
/ each
In Stock
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7318 BECBJ Bearing Product Overview & Core Advantages
The 7318 BECBJ is a single row angular contact ball bearing engineered for high-performance applications requiring exceptional precision and reliability. This metric bearing is designed to accommodate combined loads, primarily handling significant thrust loads in one direction alongside radial loads, thanks to its defined 40° contact angle. Manufactured to a P6 (ABEC-3) tolerance class, it ensures high running accuracy, making it ideal for demanding scenarios where high rigidity and precise shaft guidance are critical. Its open design allows for versatile lubrication options to suit specific operational needs.
7318 BECBJ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7318 | Standard bearing series designation indicating a 90 mm bore, 190 mm OD, and 43 mm width. |
| BE | Signifies a 40° contact angle, optimized for high thrust load capacity. |
| CB | Indicates specific internal design and clearance for optimized performance under combined loads. |
| J | Denotes a stainless steel pressed cage, contributing to high-speed capability and corrosion resistance. |
7318 BECBJ Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single row angular contact design with a 40° contact angle provides excellent rigidity and is capable of supporting high radial dynamic load ratings of 37,350 lbf and static load ratings of 32,850 lbf, efficiently managing combined loads.
- Precision Engineering: Built to P6 (ABEC-3) tolerance with tight dimensional controls on the bore diameter (90 mm) and outside diameter (190 mm), ensuring smooth, precise operation and minimal vibration.
- High-Speed Performance: The lightweight and durable stainless steel cage (J) minimizes centrifugal forces, enabling a high limiting speed of 4,500 rpm.
- Superior Material Construction: Components made from chrome steel for rings and balls offer high hardness and wear resistance, ensuring long service life under demanding conditions within a temperature range of -30° to 110 °C.
- Optimized Internal Geometry: Features like defined shoulder diameters ensure proper load distribution and secure seating, enhancing overall bearing stability.
7318 BECBJ Bearing Typical Application Areas
This angular contact ball bearing is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural and Construction Machinery
- Material Handling Equipment
