# NSK 6309Z Shielded Deep Groove Ball Bearing - 45 mm Bore, Shielded One Side - MROSupply.com

***NSK 6309Z shielded deep groove ball bearing with 45 mm bore. Single metal shield on one side, open on the other. Pressed steel cage, normal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.***



## Product details:

- Catalog number: 6309Z
- SKU: 5034247
- Price: ***$95.90*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- Category: 
    - [6300 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6300-series-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.837 lb
- Returns: Yes


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



## Alternate products to `NSK 6309Z Shielded Deep Groove Ball Bearing - 45 mm Bore, Shielded One Side - MROSupply.com`:
- [SKF 6309-Z is a 45mm bore deep groove ball bearing with a steel shield on one side. It features normal internal clearance and a sheet metal cage. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/320786/as-markdown/)
- [Koyo 6309 Z is a 63 series single-row deep groove ball bearing with a 45 mm straight bore. It features a single Z-type steel shield on one side. This bearing is designed for general industrial rotating equipment such as electric motors, pumps, and fans.](https://www.mrosupply.com/products/1494958/as-markdown/)
- [FAG 6309ZR deep groove ball bearing with 45mm bore and 100mm OD. Single shielded (ZR) design with ball guided cage. Suitable for high-speed applications requiring low friction and quiet operation. Precision German engineering from Schaeffler.](https://www.mrosupply.com/products/2176091/as-markdown/)
- [NTN 6309Z is a 63 series single-row deep groove ball bearing with a 45 mm straight bore. It features a single steel shield on one side and a pressed steel cage. Constructed from high carbon chrome steel, it is designed for general industrial rotating equipment such as electric motors, pumps, and fans.](https://www.mrosupply.com/products/278791/as-markdown/)

## Product's reviews:
- Sales - Great Service !!
- Had what i needed - Found the bearing I needed. Reasonable price. Great phone support.
- Purchasing specialist - Great!!!




## 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.