# NSK 6311VVC3 Deep Groove Ball Bearing - 55 mm Bore, Double Non-Contact Sealed, C3 Clearance - MROSupply.com

***NSK 6311VVC3 deep groove ball bearing with 55 mm bore and 120 mm OD. Double non-contact rubber seals (VV) provide low-friction sealing, and C3 clearance accommodates thermal expansion or interference fits. Suitable for electric motors, pumps, fans, and general industrial applications.***



## Product details:

- Catalog number: 6311VVC3
- SKU: 5034289
- Price: ***$190.96*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- 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: 3.014 lb
- Returns: Yes


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



## Alternate products to `NSK 6311VVC3 Deep Groove Ball Bearing - 55 mm Bore, Double Non-Contact Sealed, C3 Clearance - MROSupply.com`:
- [NTN 6311LLBC3/EM is a 63 series single-row deep groove ball bearing with a 55 mm straight bore. Features double non-contact rubber seals (LLB), a machined brass cage, and C3 clearance. Constructed from high carbon chrome steel for durability in electric motors, pumps, and general industrial machinery.](https://www.mrosupply.com/products/278745/as-markdown/)

## Product's reviews:
- Sales - Great Service !!
- Had what i needed - Found the bearing I needed. Reasonable price. Great phone support.
- Purchasing specialist - Great!!!




## 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.