# Rollway 7309 B Angular Contact Ball Bearing | MROSupply.com - MROSupply.com

***Rollway 7309 B 45 mm Bore Size, 100 mm Outside Diameter, Angular Contact Ball Bearing, Straight Bore, 52100 Bearing Steel, Normal Radial Clearance***



## Product details:

- Catalog number: 7309 B
- SKU: 2889885
- Price: ***$104.46*** Each
- Quantity: This product has a minimum order quantity of 50.
This is the minimum order quantity available when purchasing this product.
- 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: 1.825 lb
- UPC: 637410096523
- 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): 45
  

  
- Bore Type: Straight
  

  
- Cage Material: Steel
  

  
- Contact Angle: 40°
  

  
- Duplexing: No
  

  
- Dynamic Load Rating (kN): 58.3
  

  
- Dynamic Load Rating (lb): 13106
  

  
- Full Complement/Caged: Caged
  

  
- Height: 0.4
  

  
- Length: 4.1
  

  
- Material: 52100 Bearing Steel
  

  
- Misalignment: No
  

  
- Number of Rows: 1
  

  
- O.D. (mm): 100
  

  
- Overall Width (in): 0.984
  

  
- Overall Width (mm): 25
  

  
- Platform: Single Row Angular Contact Ball Bearing
  

  
- Radial Clearance: Normal
  

  
- Rolling Element: Ball
  

  
- Seal Type: Unsealed
  

  
- Sealed: None
  

  
- Series: 7300B
  

  
- Speed (Max) Grease (rpm): 5600
  

  
- Speed (Max) Oil (rpm): 7500
  

  
- Static Load Rating (kN): 40.1
  

  
- Version: B
  

  
- Width: 4.1
  
## 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.pdf)
- [Instruction Sheet](https://documents.mrosupply.com/product_documents/23/2316%20KC3/Form_9728E.pdf)
## Alternate products to `Rollway 7309 B Angular Contact Ball Bearing | MROSupply.com - MROSupply.com`:
- [SKF 7309 BECBM is a 45mm bore angular contact ball bearing with a 40° contact angle and machined brass cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313713/as-markdown/)
- [SKF 7309 BECBY 45mm bore angular contact ball bearing with a 40° contact angle and a machined brass cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313790/as-markdown/)
- [SKF 7309 BEP angular contact ball bearing, 45mm bore, 40° contact angle, enhanced polyamide cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313715/as-markdown/)
- [Nachi Bearing 7309B Angular Contact Ball Bearing Single 40](https://www.mrosupply.com/products/208129/as-markdown/)
- [MRC (SKF) 309R angular contact ball bearing with 45mm bore, 3.937" OD, open enclosure, and metal cage. Designed for high-speed and axial load applications. A reliable SKF aftermarket replacement for industrial machinery.](https://www.mrosupply.com/products/1132553/as-markdown/)
- [SKF 7309 BECBJ angular contact ball bearing, 45mm bore, 40° contact angle, sheet metal cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313550/as-markdown/)
- [SKF 7309BECBY is a 45mm bore angular contact ball bearing with a 40° contact angle and machined brass cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine tool spindles.](https://www.mrosupply.com/products/694353/as-markdown/)
- [Rollway 7309 BM 45 mm Bore Size, 100 mm Outside Diameter, Angular Contact Ball Bearing, Straight Bore, 52100 Bearing Steel, Normal Radial Clearance](https://www.mrosupply.com/products/2889886/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.