3315 A
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3315 A
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
5.55 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
160 mm
Outside diameter tolerance
-0.018mm to 0
Width
68.3 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Distance from side face to load point
96 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
103.3 mm
Outer Ring Dimensions
Shoulder diameter outer ring
135 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
39600 lbf
Radial static load rating
31500 lbf
Limiting speed
4 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:
$ 83.22
/ each
In Stock
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3315 A Bearing Product Overview & Core Advantages
The 3315 A is a double row angular contact ball bearing designed for applications demanding high precision and rigidity. This precision bearing is engineered to accommodate combined loads—simultaneous radial and bidirectional axial loads—within a single, compact unit. Its open design, coupled with a P6 (ABEC-3) tolerance class, ensures exceptional running accuracy, making it an ideal solution for high-reliability machinery where space and performance are critical.
3315 A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3315 | Standard bore diameter (75 mm), outside diameter (160 mm), and width series. |
| A | Denotes a 30° contact angle, optimized for carrying higher axial loads. |
3315 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and robust construction provide superior radial and axial stiffness, enabling the bearing to handle significant combined loads with high stability.
- Precision & Speed: Manufactured to a P6 tolerance class, it guarantees precise shaft guidance. The standard stainless steel cage contributes to stable operation at the specified limiting speed of 4000 rpm.
- Material & Durability: Components made from chrome steel offer high load ratings (39,600 lbf dynamic, 31,500 lbf static) and excellent wear resistance for long service life.
- Pre-lubricated & Ready-to-Use: The bearing comes pre-lubricated, simplifying installation and providing immediate protection during the initial run-in period.
3315 A Bearing Typical Application Areas
This bearing is well-suited for demanding industrial applications, including:
- Machine Tool Spindles
- Gearboxes and Transmissions
- Industrial Pumps and Compressors
- Precision Agricultural and Construction Equipment
