# Timken 312WDN Deep Groove Ball Bearing, Single Row Angular Contact, <12 in OD - MROSupply.com

***Timken 312WDN single row angular contact ball bearing for general industrial applications. Less than 12 inch outside diameter class, suitable for moderate radial and axial loads in pumps, fans, conveyors, and electric motors. Deep groove geometry provides stable operation and accommodates combined loading.***



## Product details:

- Catalog number: 312WDN
- SKU: 5060112
- Price: ***$222.94*** 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: 4.240 lb
- Returns: Yes


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


## Product attributes;

  
- 1.2205 in Design units: Metric Inner ring backing diameter:72.1 mm
  

  
- 2.8386 in Limiting speed (grease): 2632 rpm Limiting speed (oil):3158 rpm O.D. (in):130 mm 5.1181 Outer ring backing diameter:118.10 mm
  

  
- 4.6496 in Static radial rating: 80400 N
  

  
- Ball type: Steel Bearing width:31 mm
  

  
- Ball Type: STEEL
  

  
- Bearing Width: 31 mm 1.2205 in
  

  
- Bore: 60 mm
  

  
- C0 - Static Radial Rating: 80400 N 18100 lbf
  

  
- Ce - Dynamic Radial Rating: 119800 N 26900 lbf
  

  
- d - Bore: 60 mm
  

  
- D - Outer Diameter: 130 mm 5.1181 in
  

  
- da - Inner Ring Backing Diameter: 72.1 mm 2.8386 in
  

  
- Da - Outer Ring Backing Diameter: 118.10 mm 4.6496 in
  

  
- Design Units: Metric
  

  
- DOuter Ring Backing Diameter: 118.10 mm 4.6496 in
  

  
- Dynamic Radial Rating: 119800 N 26900 lbf
  

  
- I.D.: 60 mm
  

  
- Inner Ring 'To Clear' Radius: 2.11 mm 0.083 in
  

  
- Inner Ring Backing Diameter: 72.1 mm 2.8386 in
  

  
- Limiting Speed (Grease): 2632 rpm
  

  
- Limiting Speed (Oil): 3158 rpm
  

  
- Outer Diameter: 130 mm 5.1181 in
  

  
- Outer Ring 'To Clear' Radius: 2.11 mm 0.083 in
  

  
- R - Inner Ring "To Clear" Radius: 2.11 mm 0.083 in
  

  
- r - Outer Ring "To Clear" Radius: 2.11 mm 0.083 in
  

  
- Static Radial Rating: 80400 N 18100 lbf
  
## Product documents / software:

- [Fafnir Maximum Capacity Ball Bearings 200w 3](https://documents.mrosupply.com/product_documents/50/60/5060112/312wdn_RtqOtGm)

## 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.