3215 A
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3215 A
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
2.1 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
130 mm
Outside diameter tolerance
-0.015mm to 0
Width
41.3 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.5 mm
Distance from side face to load point
77 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
92.04 mm
Outer Ring Dimensions
Shoulder diameter outer ring
111.49 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
21510 lbf
Radial static load rating
19800 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:
$ 33.08
/ each
In Stock
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3215 A Bearing Product Overview & Core Advantages
The 3215 A is a precision double row angular contact ball bearing engineered for applications requiring high rigidity and exceptional running accuracy. This metric bearing is designed to accommodate combined loads—simultaneously handling significant radial loads and axial loads in both directions. Its double-row ball construction provides a compact, high-capacity solution, making it ideal for high-reliability machinery. Manufactured to a P6 (ABEC-3) tolerance class, it ensures precise operation and consistent performance in demanding environments.
3215 A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3215 | Standard bore diameter (75 mm), outside diameter (130 mm), and width series. |
| A | Signifies a 30-degree contact angle, optimized for carrying higher axial loads. |
3215 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to support substantial combined loads with minimal deflection. The specified 30-degree contact angle further enhances its axial load-carrying capability.
- Precision & Speed Performance: Built to P6 tolerance with a stainless steel cage, the bearing ensures smooth operation and stable rotational characteristics, contributing to a high limiting speed of 4,500 rpm.
- Material & Durability: Components made from chrome steel for rings and balls offer high fatigue resistance and durability, suitable for a wide operating temperature range from -30°C to 110°C.
- Open Design & Lubrication: The open seal type allows for versatile lubrication options, facilitating optimal performance customization for specific application needs.
3215 A Bearing Typical Application Areas
This bearing is ideally suited for high-precision and high-stiffness applications, including:
- Machine Tool Spindles
- Industrial Gearboxes
- Precision Drives
- Pumps and Compressors
- Material Handling Equipment
