# Koyo 6211 NR Deep Groove Ball Bearing - 55 mm Bore, With Snap Ring - MROSupply.com

***Koyo 6211 NR is a 62 series single-row deep groove ball bearing with a 55 mm straight bore and a snap ring groove for axial location. Open type with no seals or shields. Used in electric motors, pumps, and general rotating machinery.***



## Product details:

- Catalog number: 6211 NR
- SKU: 1494803
- Price: ***$101.55*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Koyo Bearing](https://www.mrosupply.com/brands/koyo-bearing/)
- Category: 
    - [Single Row Angular Contact Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/single-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: 0.620 lb
- UPC: 60579006568


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


## Product attributes;

  
- Bearing Material: Steel
  

  
- Bearing Type: Deep Groove Ball Bearings
  

  
- Bore Diameter: 55 mm
  

  
- Cage Material: Steel
  

  
- Cage Type: Riveted
  

  
- Closure Type: Open
  

  
- Dynamic Load Capacity: 54.2 kN
  

  
- Fillet Radius: 1.5 mm
  

  
- Internal Clearance: C0
  

  
- Locating Feature: Snap Ring (fitted)
  

  
- Lubricant: Rust Preventative
  

  
- Maximum RPM: 6300 rpm Grease/7600 rpm Oil
  

  
- Number of Rows: 1
  

  
- O.D.: 100 mm
  

  
- Operating Temperature Range: -30 to 120 deg C
  

  
- Outer Diameter Type: Straight
  

  
- Precision class: Class 0
  

  
- Series: 6200
  

  
- Static Load Capacity: 29.4 kN
  

  
- Type: Round
  

  
- Width: 21 mm
  

## Alternate products to `Koyo 6211 NR Deep Groove Ball Bearing - 55 mm Bore, With Snap Ring - MROSupply.com`:
- [SKF 6211 NR/C3 deep groove ball bearing, 55mm bore, with snap ring groove for axial location, C3 clearance, and a pressed steel cage. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/319616/as-markdown/)
- [SKF 6211 NR deep groove ball bearing, 55mm bore, with snap ring groove for axial location. Open configuration with sheet metal cage and normal internal clearance. Bearing steel construction. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/320951/as-markdown/)
- [Nachi Bearing 6211 TYPE: SEALED W/ SNAP RING BORE: 55 MILLIMETERS OUTER DIAMETER: 100 MILLIMETERS](https://www.mrosupply.com/products/208046/as-markdown/)
- [NTN 6211NRC3 is a 62 series single-row deep groove ball bearing with a 55 mm straight bore. It features an open enclosure with a snap ring groove and snap ring, steel cage, and C3 clearance. Constructed from high carbon chrome steel, it is suitable for applications requiring radial load support and axial location.](https://www.mrosupply.com/products/279438/as-markdown/)
- [NSK 6211NR deep groove ball bearing with 55 mm bore and 100 mm OD. Features a snap ring groove and snap ring on the outer ring for axial location in the housing. Open bearing with pressed steel cage and normal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5033842/as-markdown/)
- [Rollway 6211 NR 55 mm Bore Size, 100 mm Outside Diameter, Radial Ball Bearing, Straight Bore, 52100 Bearing Steel, Normal Radial Clearance](https://www.mrosupply.com/products/2301559/as-markdown/)
- [SKF 6211 NRJEM deep groove ball bearing, 55mm bore, 3.937in OD, with snap ring groove for axial location. C3 clearance. Sheet metal cage. Bearing steel construction. Suitable for electric motors, pumps, and general industrial machinery.](https://www.mrosupply.com/products/320310/as-markdown/)
- [NTN 6211NR 62 series single-row deep groove ball bearing, 55 mm straight bore, open type with snap ring groove and snap ring (NR suffix) for axial location in the housing. Suitable for electric motors, pumps, fans, and general rotating machinery.](https://www.mrosupply.com/products/279439/as-markdown/)

## Product's reviews:
- Koyo roller bearing inner ring - Good product.
- Admin assistance - good product!
- Great service - great items at great price




## 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.