3312 A
Double Row Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
3312 A
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
2.8 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.015mm to 0
Width
54 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Distance from side face to load point
78 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
84.2 mm
Outer Ring Dimensions
Shoulder diameter outer ring
110 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
28575 lbf
Radial static load rating
21375 lbf
Limiting speed
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:
$ 44.67
/ each
In Stock
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3312 A Bearing Product Overview & Core Advantages
The 3312 A is a double row angular contact ball bearing engineered for high-performance applications requiring exceptional rigidity and the ability to handle combined loads. Its precision P6 (ABEC-3) tolerance ensures reliable operation in demanding scenarios. This bearing is pre-lubricated for immediate use and is designed to support significant radial and bidirectional axial loads simultaneously, making it an ideal precision bearing for compact, high-rigidity arrangements.
3312 A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| A | Optimized internal design with a 30° contact angle, providing superior axial load capacity and high rigidity. |
| (No Seal Suffix) | The bearing is supplied as an open type, allowing for custom lubrication schemes or integration into sealed housing units. |
3312 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and optimized 30° contact angle provide significantly increased radial and axial stiffness, enabling the bearing to withstand heavy combined loads.
- Precision & High-Speed Performance: Manufactured to P6 (ABEC-3) tolerance class with a stainless steel cage, this bearing ensures smooth operation and is capable of achieving a limiting speed of 5,000 rpm, suitable for many high-speed applications.
- Robust Construction & Reliability: Components made from chrome steel offer high durability and fatigue resistance. The pre-lubrication facilitates immediate startup and reliable operation within a temperature range of -30°C to 110°C.
- Compact & Efficient Design: With a bearing size of 60mm bore and 130mm outside diameter, it offers a high load capacity within a compact cross-section, optimizing space in machinery design.
3312 A Bearing Typical Application Areas
This double row angular contact ball bearing is ideally suited for:
- Machine Tool Spindles
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Precision Agricultural and Construction Machinery
- Material Handling Equipment
