# FAG 51308 Single Direction Thrust Ball Bearing 45mm Bore 85mm OD - MROSupply.com

***FAG 51308 single direction thrust ball bearing, 45mm bore, 85mm OD. Designed for axial loads in one direction, suitable for vertical shaft applications. Manufactured by Schaeffler, meets ISO precision standards for industrial machinery.***



## Product details:

- Catalog number: 51308
- SKU: 2171535
- Price: ***$113.48*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [FAG Bearing](https://www.mrosupply.com/brands/fag-bearing/)
- Category: 
    - [Ball Thrust Bearings](htts://www.mrosupply.com/bearings/ball-bearings/ball-thrust-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.213 lb
- UPC: 4012801162494


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


## Product attributes;

  
- Cage Material: Steel
  

  
- Fillet Radius: 1 mm
  

  
- I.D.: 1.772
  

  
- Max Rpm: 4250 rpm
  

  
- O.D.: 3.346
  

  
- O.D. Design: Straight
  

  
- Operating Temperature Range: -30 to +150°C
  

  
- Overall Width: 26 mm
  

  
- Precision Rating: ABEC 1 (ISO Class Normal)
  

  
- Product Type: Ball Thrust Bearings
  

  
- Radial Dynamic Load Capacity: 61000 N
  

  
- Separable Or Banded: Separable
  

  
- Series: 513
  

  
- Standards Met: DIN 711/ISO 104
  

  
- Thrust Bearing Type: Single-Direction
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/21/74/2174764/000074DC_a_aH6VDjp.png)
- [Drawing 1](https://documents.mrosupply.com/product_documents/51/51420MP/108218_aah_ind.gif)
- [Drawing 2](https://documents.mrosupply.com/product_documents/51/51420MP/108224_aah_ind.gif)
## Alternate products to `FAG 51308 Single Direction Thrust Ball Bearing 45mm Bore 85mm OD - MROSupply.com`:
- [SKF 51308 40mm bore thrust ball bearing with a sheet metal cage. Designed for axial loads in one direction, it accommodates moderate speeds and is suitable for machine tool spindles, gearboxes, and general industrial applications.](https://www.mrosupply.com/products/320542/as-markdown/)
- [Rollway 51308 40 mm Bore Size, 78 mm Outside Diameter, Thrust Ball Bearing, 52100 Bearing Steel, Normal Radial Clearance](https://www.mrosupply.com/products/2302323/as-markdown/)
- [NTN 51308 single direction thrust ball bearing with 40 mm straight bore. Designed for axial loads in one direction, this bearing features a shaft washer, housing washer, and ball and cage assembly. Suitable for vertical shaft applications in gearboxes, pumps, and machine tools.](https://www.mrosupply.com/products/283281/as-markdown/)
- [NSK 51308 thrust ball bearing with 40 mm bore. Designed for pure axial loads in vertical-shaft applications. Backed by NSK's precision-bearing engineering heritage.](https://www.mrosupply.com/products/5032861/as-markdown/)






## 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.