BA1B 307788
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
BA1B 307788
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
64 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
900 mm
Bore diameter tolerance
-0.06mm to 0
Outside diameter
1030 mm
Outside diameter tolerance
-0.075mm to 0
Width
63 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
3.9 mm
Contact angle
40 °
Distance from side face to load point
310 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
946 mm
Outer Ring Dimensions
Shoulder diameter outer ring
984 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
93600 lbf
Radial static load rating
285750 lbf
Limiting speed
0.48 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
In Stock
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BA1B 307788 Bearing Product Overview & Core Advantages
The BA1B 307788 is a single row angular contact ball bearing engineered for high-performance applications requiring exceptional precision and rigidity. Characterized by its 40° contact angle, this bearing is specifically designed to accommodate high combined loads, efficiently supporting significant radial and unidirectional axial loads simultaneously. Its P6 (ABEC-3) tolerance class ensures high running accuracy, making it ideal for demanding, high-reliability machinery. The open design, combined with a nylon cage, facilitates optimal lubrication flow and contributes to smooth, high-speed operation.
BA1B 307788 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| BA1B 307788 | Manufacturer's base designation for this specific single row angular contact ball bearing series and size. |
| Open (Seal Type) | Indicates the bearing is supplied without seals or shields, allowing for custom lubrication systems and maximum speed capability. |
| P6 (Tolerance Class) | Denotes a precision bearing grade equivalent to ABEC-3, with tighter dimensional and running accuracy tolerances. |
BA1B 307788 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single row design with a steep 40° contact angle provides excellent rigidity and is optimized to carry high combined loads, particularly thrust loads in one direction.
- Precision and High-Speed Capability: Manufactured to P6 precision class with a lightweight nylon cage, this bearing ensures smooth operation, reduced vibration, and is suitable for applications requiring high rotational accuracy.
- Optimized Internal Geometry: The specified shoulder diameters on both the inner and outer rings (946 mm and 984 mm respectively) ensure secure positioning and optimal load support from adjacent components.
- Robust Material Construction: Manufactured from chrome steel for both rings and balls, providing high load ratings and durability. The standard lubrication ensures immediate operational readiness.
BA1B 307788 Bearing Typical Application Areas
This bearing is suited for heavy-duty industrial applications where high precision and load capacity are paramount. Key sectors include:
- Large Industrial Machinery: Main spindles for large machining centers, heavy-duty pumps, and high-power gearboxes.
- Material Handling & Construction Equipment: Slewing rings and pivot points in large cranes, excavators, and other heavy machinery.
- Precision Engineering: Large rotary tables, indexing heads, and other precision positioning systems.
