# SKF 6306-2Z/C3 Deep Groove Ball Bearing 30mm Bore Double Shielded C3 Clearance - MROSupply.com

***SKF 6306-2Z/C3 deep groove ball bearing, 30mm bore, 72mm OD, 19mm width. Double shielded with steel shields both sides, C3 loose clearance, sheet metal cage. Bearing steel construction. Suitable for electric motors, pumps, and general industrial applications requiring contaminant protection.***



## Product details:

- Catalog number: 6306-2Z/C3
- SKU: 319460
- Price: ***$52.83*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [SKF Bearing](https://www.mrosupply.com/brands/skf-bearing/)
- Category: 
    - [6300 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6300-series-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.805 lb


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


## Product attributes;

  
- Basic Dynamic Load Rating: 29.6 kN
  

  
- Basic Static Load Rating: 16 kN
  

  
- Bearing Material: Bearing steel
  

  
- Bearing Outer Ring Locating Feature: None
  

  
- Bore Diameter: 30 mm
  

  
- Bore Type: Cylindrical
  

  
- Cage: Sheet metal
  

  
- Clearance: C3 Loose
  

  
- Coating: Without
  

  
- Dimension Type: Metric
  

  
- Filling Slots: Without
  

  
- Inner Diameter (mm): 30.000
  

  
- Limiting Speed: 11000 r/min
  

  
- Locating Feature Bearing: None
  

  
- Lubricant: Grease
  

  
- Lubricant (in Bearing): Grease
  

  
- Matched Arrangement: No
  

  
- Material/Treatment: Bearing steel
  

  
- Number of Rows: 1
  

  
- O.D. (in): 2.835
  

  
- Outer Diameter (mm): 72.000
  

  
- Pack Height: 78 mm
  

  
- Pack Length: 76 mm
  

  
- Pack Width: 23 mm
  

  
- Radial Internal Clearance: C3
  

  
- Reference Speed: 20000 r/min
  

  
- Relubrication Feature: Without
  

  
- Seal Type: N/A
  

  
- Sealing: Shield on both sides
  

  
- Sealing Type: Non-contact
  

  
- SKF Performance Class: SKF Explorer
  

  
- Tolerance Class: Class P6 (P6)
  

  
- Width: 19 mm
  

  
- Width (mm): 19.000
  

## Alternate products to `SKF 6306-2Z/C3 Deep Groove Ball Bearing 30mm Bore Double Shielded C3 Clearance - MROSupply.com`:
- [SKF 6306 2ZJEM is a 30mm bore deep groove ball bearing, double shielded with metal shields, C3 clearance, and a machined brass cage. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/320022/as-markdown/)
- [NACHI 6306ZZEC3 Deep Groove Ball Bearing Single Row 30X72X19MM Two Shields Steel Cage C3 Clearance](https://www.mrosupply.com/products/207678/as-markdown/)
- [NSK 6306ZZC3 shielded deep groove ball bearing with 30 mm bore. Double metal shields (ZZ) protect against contaminants, while C3 clearance provides a looser internal fit for thermal expansion. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5034191/as-markdown/)
- [NSK 6306ZZ shielded deep groove ball bearing with 30 mm bore. Double metal shields (ZZ) protect against contaminants. Pressed steel cage and normal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5034190/as-markdown/)
- [Koyo 6306 ZZ is a 63 series single-row deep groove ball bearing with a 30 mm bore, 72 mm OD, and 19 mm width. It features double steel shields (ZZ) and a pressed steel cage. Designed for radial and moderate axial loads in electric motors, pumps, fans, and general industrial rotating equipment.](https://www.mrosupply.com/products/1494932/as-markdown/)
- [NTN 6306ZZ is a 63 series single-row deep groove ball bearing with a 30 mm straight bore. It features double shielded (ZZ) steel shields for protection against contaminants while maintaining low friction. Suitable for electric motors, pumps, fans, and general rotating machinery.](https://www.mrosupply.com/products/278892/as-markdown/)
- [NTN 6306ZZC3/EM is a 63 series single-row deep groove ball bearing with a 30 mm straight bore. It features double shielded enclosures, C3 internal clearance, and a machined brass cage. Constructed from high carbon chrome steel, this bearing is suitable for electric motors, pumps, and general industrial rotating machinery.](https://www.mrosupply.com/products/278890/as-markdown/)
- [SKF 6306-2Z/C4WT deep groove ball bearing, 30mm bore, double shielded with steel shields, C4 clearance. Features a pressed steel cage. Designed for applications requiring greater-than-normal clearance, such as high-temperature or high-interference-fit environments.](https://www.mrosupply.com/products/5830176/as-markdown/)

## Product's reviews:
- Rateing - Fast service and very good supply.
- Skf bearing f4b 108-rm purchase - Great price and quick shipping for a high quality SKF bearing. Exactly what we needed.
- Excellent! - The perfect part… and FAST shipping! Thank you!!
- Skf 6205-2z/gjn - Item is exactly what I was looking for.
Like always you get high quality with
SKF




## 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.