# NSK 21306CDE4C3 Spherical Roller Bearing - 30 mm Bore, C3 Clearance, Pressed Steel Cage - MROSupply.com

***NSK 21306CDE4C3 spherical roller bearing with 30 mm bore and 72 mm OD. Features a pressed steel cage (CD), C3 clearance, and E4 enhanced internal design. Used in heavy-duty industrial gearboxes, vibrating screens, paper-mill rolls, and mining equipment.***



## Product details:

- Catalog number: 21306CDE4C3
- SKU: 5030114
- Price: ***$174.66*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- Category: 
    - [Straight / Round Bore Spherical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/spherical-roller-bearings/straight-round-bore-spherical-roller-bearings/)
    - [Spherical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/spherical-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.818 lb
- Returns: Yes


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




## 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.