# Rollway 7303 B Angular Contact Ball Bearing | MROSupply.com - MROSupply.com

***Rollway 7303 B 17 mm Bore Size, 47 mm Outside Diameter, Angular Contact Ball Bearing, Straight Bore, 52100 Bearing Steel, Normal Radial Clearance***



## Product details:

- Catalog number: 7303 B
- SKU: 2889877
- Price: ***$82.40*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Rollway](https://www.mrosupply.com/brands/rollway/)
- 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: 0.243 lb
- UPC: 637410096448
- Returns: Yes
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Bore Size (mm): 17
  

  
- Bore Type: Straight
  

  
- Cage Material: Steel
  

  
- Contact Angle: 40°
  

  
- Duplexing: No
  

  
- Dynamic Load Rating (kN): 14.8
  

  
- Dynamic Load Rating (lb): 3327
  

  
- Full Complement/Caged: Caged
  

  
- Height: 1.85
  

  
- Length: 1.85
  

  
- Material: 52100 Bearing Steel
  

  
- Misalignment: No
  

  
- Number of Rows: 1
  

  
- O.D. (mm): 47
  

  
- Overall Width (in): 0.551
  

  
- Overall Width (mm): 14
  

  
- Platform: Single Row Angular Contact Ball Bearing
  

  
- Radial Clearance: Normal
  

  
- Rolling Element: Ball
  

  
- Seal Type: Unsealed
  

  
- Sealed: None
  

  
- Series: 7300B
  

  
- Speed (Max) Grease (rpm): 12000
  

  
- Speed (Max) Oil (rpm): 17000
  

  
- Static Load Rating (kN): 8.1
  

  
- Version: B
  

  
- Width: 0.55
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/28/89/2889876/Morse_32002RS_Catalog_We7QNFf.pdf)
- [Catalog Page](https://documents.mrosupply.com/product_documents/73/7313%20B/MCC11019E_p146_bn9wR8i.pdf)
- [Instruction Sheet](https://documents.mrosupply.com/product_documents/23/2316%20KC3/Form_9728E.pdf)
## Alternate products to `Rollway 7303 B Angular Contact Ball Bearing | MROSupply.com - MROSupply.com`:
- [NTN 7303BG single-row angular contact ball bearing, 17 mm straight bore, 73 series. Open type design with no seals or shields. Supports combined radial and axial loads at moderate speeds. Suitable for pumps, electric motors, and machine tool spindles.](https://www.mrosupply.com/products/277647/as-markdown/)
- [NSK 7303BWG angular contact ball bearing with 17 mm bore and 40° contact angle. It features a pressed steel cage and is designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles. Backed by NSK's precision-bearing engineering heritage.](https://www.mrosupply.com/products/5035274/as-markdown/)
- [FAG 7303B.JP.UA single-row angular contact ball bearing with 17mm bore and universal face-to-face arrangement. Features a ball-guided sheet metal cage for high-speed stability. Suitable for machine tool spindles and precision equipment requiring reliable axial and radial load support.](https://www.mrosupply.com/products/2176690/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.