# SKF QJ 313 MA Four-Point Angular Contact Ball Bearing 65mm Bore Machined Brass Cage - MROSupply.com

***SKF QJ 313 MA four-point angular contact ball bearing, 65mm bore, 140mm OD, 48mm width. Machined brass cage. Designed for combined radial and axial loads in both directions. Suitable for pumps, compressors, and gearboxes where space is limited.***



## Product details:

- Catalog number: QJ 313 MA
- SKU: 313665
- Price: ***$641.29*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [SKF Bearing](https://www.mrosupply.com/brands/skf-bearing/)
- Category: 
    - [Four Point Contact Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/four-point-contact-ball-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: 5.798 lb


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


## Product attributes;

  
- Axial Internal Clearance: CN
  

  
- Basic Dynamic Load Rating: 176 kN
  

  
- Basic Static Load Rating: 156 kN
  

  
- Bearing Material: Bearing steel
  

  
- Bearing Outer Ring Locating Feature: None
  

  
- Bore Diameter: 65 mm
  

  
- Cage: Machined (solid)
  

  
- Coating: Without
  

  
- Contact Angle: 35 °
  

  
- Contact Type: Four-point contact
  

  
- Dimension Type: Metric
  

  
- Inner Diameter (mm): 65.000
  

  
- Limiting Speed: 8500 r/min
  

  
- Lubricant: None
  

  
- Lubricant (in Bearing): None
  

  
- Matched Arrangement: No
  

  
- Material/Treatment: Bearing steel
  

  
- Number of Rows: 1
  

  
- O.D. (in): 5 1/2
  

  
- Outer Diameter (mm): 140.000
  

  
- Pack Height: 146 mm
  

  
- Pack Length: 144 mm
  

  
- Pack Width: 40 mm
  

  
- Relubrication Feature: Without
  

  
- Ring Type: Two-piece inner ring
  

  
- Sealing: None
  

  
- SKF Performance Class: SKF Explorer
  

  
- Type: Four-point contact
  

  
- Universal Matching Bearing: No
  

  
- Width: 33 mm
  

  
- Width (mm): 33.000
  
## Product documents / software:

- [Abutment dimensions](https://documents.mrosupply.com/product_documents/QJ/QJ%20324%20N2MA/110620001420-201000020wp_RARRCCC.svg)
- [Dimensions](https://documents.mrosupply.com/product_documents/QJ/QJ%20313%20MA/110620001220-201000020wp_kjcznXW.svg)
- [DXF](https://documents.mrosupply.com/product_documents/QJ/QJ%20313%20MA/QJ_313_MA_O3KBB4X.dxf)

## Product's reviews:
- Purchase of bearing - exactly what we needed and it showed up in only 1 day thank you so much.
- Bearing purchase - Good price and fast delivery!! Also a pleasure doing business with MROSupply.com!!
- Skf 6205-2z/gjn - Item is exactly what I was looking for.
Like always you get high quality with
SKF
- Buyer - perfect sevice




## 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.