# Timken 304KD Deep Groove Ball Bearing, Single Row Angular Contact, <12 in OD - MROSupply.com

***Timken 304KD single row angular contact ball bearing, <12 inch outside diameter. Deep groove raceway accommodates radial and light axial loads for general industrial applications including pumps, fans, and conveyors. Suitable for moderate speeds and loads.***



## Product details:

- Catalog number: 304KD
- SKU: 5071093
- Price: ***$24.78*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- 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: 0.310 lb
- Returns: Yes


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


## Product attributes;

  
- 0.5906 in Design units: Metric Inner ring backing diameter:23.9 mm
  

  
- 0.9409 in Limiting speed (grease): 8333 rpm Limiting speed (oil):9722 rpm Manufacturing part number:304KDG Z5 FS50000 O.D. (in):52 mm 2.047 Outer ring backing diameter:45.00 mm
  

  
- 1.7717 in Static radial rating: 7880 N
  

  
- Ball type: Steel Bearing width:15 mm
  

  
- Ball Type: STEEL
  

  
- Bearing Width: 15 mm 0.5906 in
  

  
- Bore: 20 mm
  

  
- C0 - Static Radial Rating: 7880 N 1770 lbf
  

  
- Ce - Dynamic Radial Rating: 17700 N 3970 lbf
  

  
- d - Bore: 20 mm
  

  
- D - Outer Diameter: 52 mm 2.0472 in
  

  
- da - Inner Ring Backing Diameter: 23.9 mm 0.9409 in
  

  
- Da - Outer Ring Backing Diameter: 45.00 mm 1.7717 in
  

  
- Design Units: Metric
  

  
- DOuter Ring Backing Diameter: 45.00 mm 1.7717 in
  

  
- Dynamic Radial Rating: 17700 N 3970 lbf
  

  
- I.D.: 20 mm
  

  
- Inner Ring 'To Clear' Radius: 1.1 mm 0.043 in
  

  
- Inner Ring Backing Diameter: 23.9 mm 0.9409 in
  

  
- Limiting Speed (Grease): 8333 rpm
  

  
- Limiting Speed (Oil): 9722 rpm
  

  
- Manufacturing Part Number: 304KDG Z5 FS50000
  

  
- Outer Diameter: 52 mm 2.0472 in
  

  
- Outer Ring 'To Clear' Radius: 1.1 mm 0.043 in
  

  
- R - Inner Ring "To Clear" Radius: 1.1 mm 0.043 in
  

  
- r - Outer Ring "To Clear" Radius: 1.1 mm 0.043 in
  

  
- Static Radial Rating: 7880 N 1770 lbf
  
## Product documents / software:

- [Fafnir Deep Groove Ball Bearings 9100k 200k](https://documents.mrosupply.com/product_documents/50/71/5071088/304kdg_GsiEFSm)

## Product's reviews:
- Best company to buy from - I always buy from MRO is a very reliable company to work with




## 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.