# SKF 3306 A-2Z/C3 Double-Row Angular Contact Ball Bearing 30mm Bore 30° Contact Angle Double Shielded C3 Clearance - MROSupply.com

***SKF 3306 A-2Z/C3 double-row angular contact ball bearing, 30mm bore, 72mm OD, 30° contact angle, double shielded (non-contact), C3 clearance. Carries combined radial and axial loads in both directions. Suitable for pumps, gearboxes, and industrial machinery.***



## Product details:

- Catalog number: 3306 A-2Z/C3
- SKU: 2069050
- Price: ***$145.58*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [SKF Bearing](https://www.mrosupply.com/brands/skf-bearing/)
- Category: 
    - [Double Row Angular Contact Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/double-row-angular-contact-bearings/)
    - [Angular Contact Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.235 lb


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Arrangement of Contact Angle (double-row Bearing): Back-to-back (O)
  

  
- Axial Internal Clearance: C3
  

  
- Basic Dynamic Load Rating: 42.5 kN
  

  
- Basic Static Load Rating: 30 kN
  

  
- Bearing Material: Bearing steel
  

  
- Bearing Outer Ring Locating Feature: None
  

  
- Bore Diameter: 30 mm
  

  
- Cage: Sheet metal
  

  
- Coating: Without
  

  
- Contact Angle: 30 °
  

  
- Contact Type: Normal contact (two-point contact)
  

  
- I.D.: 1 1/6 in
  

  
- Inner Diameter (mm): 30.000
  

  
- Limiting Speed: 9000 r/min
  

  
- Lubricant: Grease
  

  
- Matched Arrangement: No
  

  
- Number of Rows: 2
  

  
- O.D. (in): 2 5/6
  

  
- Outer Diameter (mm): 72.000
  

  
- Pack Height: 78 mm
  

  
- Pack Length: 76 mm
  

  
- Pack Width: 34 mm
  

  
- Reference Speed: 10000 r/min
  

  
- Relubrication Feature: Without
  

  
- Ring Type: One-piece inner and outer rings
  

  
- Sealing: Shield on both sides
  

  
- Sealing Type: Non-contact
  

  
- SKF Performance Class: SKF Explorer
  

  
- Universal Matching Bearing: No
  

  
- Width: 30.2 mm
  

  
- Width (mm): 30.200
  


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- Purchase of bearing - exactly what we needed and it showed up in only 1 day thank you so much.
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## FAQ:

- How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints.
For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials.
In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.


- What is the difference between deep groove and angular contact ball bearings?: Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors.
Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes.
If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.