3307 DJ1
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3307 DJ1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.79 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.011mm to 0
Width
34.9 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.5 mm
Distance from side face to load point
76 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
52.8 mm
Outer Ring Dimensions
Shoulder diameter outer ring
69 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11858 lbf
Radial static load rating
9338 lbf
Limiting speed
8 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
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In Stock
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3307 DJ1 Bearing Product Overview & Core Advantages
The 3307 DJ1 is a double row angular contact ball bearing designed for applications requiring high precision and rigidity. This precision bearing is engineered to accommodate combined loads—simultaneously handling significant radial loads and axial loads in both directions. Its compact design and P6 (ABEC-3) tolerance class make it ideal for high-reliability machinery. The bearing comes pre-lubricated for immediate use and features an open design, optimized for controlled environments where maximum speed performance is critical, with a limiting speed of 8,000 rpm.
3307 DJ1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| DJ1 | Indicates a specific internal design and contact angle optimized for high rigidity and precise axial positioning under combined loads. |
| Open (Seal Type) | No seals or shields, allowing for higher speeds and optimal lubrication flow. Requires a clean operating environment. |
3307 DJ1 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and optimized contact angle provide exceptional stiffness, enabling stable operation under heavy combined radial and axial loads (Dynamic Load Rating: 11,858 lbf / Static Load Rating: 9,338 lbf).
- High-Speed Performance: The stainless steel cage ensures low friction and high mechanical strength at the limiting speed of 8,000 rpm, making it a true high-speed bearing.
- Precision Engineering: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional controls on the bore diameter (35 mm), outside diameter (80 mm), and width (34.9 mm) for precise shaft and housing fits.
- Durable Material Construction: Rings and balls made from chrome steel provide high wear resistance and long service life under demanding conditions.
3307 DJ1 Bearing Typical Application Areas
- Machine Tool Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- High-Speed Automation Equipment
- Medical and Laboratory Instrumentation
