# NSK 6008DDU Sealed Deep Groove Ball Bearing - 40 mm Bore, Double Sealed - MROSupply.com

***NSK 6008DDU sealed deep groove ball bearing with 40 mm bore and 68 mm OD. Double contact NBR rubber seals (DDU) on both sides exclude contaminants. Pressed steel cage, normal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.***



## Product details:

- Catalog number: 6008DDU
- SKU: 5033292
- Price: ***$62.57*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- Category: 
    - [6000 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6000-series-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.422 lb
- Returns: Yes


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



## Alternate products to `NSK 6008DDU Sealed Deep Groove Ball Bearing - 40 mm Bore, Double Sealed - MROSupply.com`:
- [SKF 6008 2RSJEM 40mm bore deep groove ball bearing, double sealed with NBR rubber seals on both sides. It features C3 greater-than-normal clearance and a machined brass cage for durability. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/320824/as-markdown/)
- [NACHI 6008-2NSE9C3 Deep Groove Ball Bearing Single Row 40X68X15MM Two Seals Steel Cage C3 Clearance](https://www.mrosupply.com/products/207735/as-markdown/)
- [SKF 6008-2RS1 deep groove ball bearing, 40mm bore, double sealed with NBR rubber seals on both sides. Features a sheet metal cage and normal internal clearance. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/320910/as-markdown/)
- [SKF 6008-2RS1/C3 40mm bore deep groove ball bearing, double sealed with NBR rubber seals on both sides and C3 clearance. It features a sheet metal cage and is constructed from bearing steel. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/321078/as-markdown/)
- [Koyo 6008 2RS is a 60 series single-row deep groove ball bearing with a 40 mm bore, 68 mm OD, and 15 mm width. Features double rubber seals and a steel cage. Suitable for electric motors, pumps, and general rotating machinery.](https://www.mrosupply.com/products/1494632/as-markdown/)
- [NSK 6008DDUC3 deep groove ball bearing with 40 mm bore. Double contact rubber seals (DDU) on both sides and C3 internal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5033293/as-markdown/)
- [NTN 6008LLUC3/EM 60 series single-row deep groove ball bearing with 40 mm straight bore, double sealed (LLU rubber contact), C3 internal clearance, and pressed steel cage. High carbon chrome steel construction for electric motors, pumps, and general industrial rotating machinery.](https://www.mrosupply.com/products/280520/as-markdown/)
- [NTN 6008LLU 60 series single-row deep groove ball bearing with 40 mm straight bore. Double rubber contact seals (NBR) exclude contaminants, stamped steel cage. For electric motors, pumps, fans, and general rotating machinery.](https://www.mrosupply.com/products/280524/as-markdown/)

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