# NSK 7409BMG Super-Precision Angular Contact Spindle Bearing - 45 mm Bore, 40° Contact, Brass Cage - MROSupply.com

***NSK 7409BMG super-precision angular contact spindle bearing with 45 mm bore and 100 mm outside diameter. Features a 40-degree contact angle and machined brass cage for high-speed precision operation. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.***



## Product details:

- Catalog number: 7409BMG
- SKU: 5035367
- Price: ***$377.24*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- 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: 3.850 lb
- Returns: Yes


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



## Alternate products to `NSK 7409BMG Super-Precision Angular Contact Spindle Bearing - 45 mm Bore, 40° Contact, Brass Cage - MROSupply.com`:
- [SKF 7409 BGM is a 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/313541/as-markdown/)
- [SKF 7409 BCBM angular contact ball bearing, 45mm bore, 40° contact angle, machined brass cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313830/as-markdown/)
- [FAG 7409B.MP.UA single row angular contact ball bearing with 45mm bore. Features universal face-to-face arrangement for duplex mounting and polyamide cage. Suitable for high-speed applications requiring axial load capacity in both directions. Precision German engineering from Schaeffler.](https://www.mrosupply.com/products/2176906/as-markdown/)
- [FAG 7409B.MP.UO single row angular contact ball bearing with 45mm bore and 120mm OD. Universal back-to-back arrangement for duplex mounting, polyamide cage (MP), and optimized internal design (UO). Suitable for high-speed and high-precision applications requiring axial and radial load support.](https://www.mrosupply.com/products/2176907/as-markdown/)

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




## 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.