# NTN 6315ZZ Deep Groove Ball Bearing - 75 mm Bore, Double Shielded - MROSupply.com

***NTN 6315ZZ 63 series single-row deep groove ball bearing with a 75 mm straight bore. Features double metal shields (ZZ) for protection against contaminants while maintaining low friction. Designed for electric motors, pumps, fans, and general rotating machinery.***



## Product details:

- Catalog number: 6315ZZ
- SKU: 278640
- Price: ***$351.16*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- 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: 6.768 lb
- UPC: 4547359005844


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


## Product attributes;

  
- B (in): 1.4567
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Steel
  

  
- Cage material: Steel
  

  
- Cage Type: Pressed
  

  
- Cage type: Pressed
  

  
- Configuration: One
  

  
- d (in): 2.9528
  

  
- D (in): 6.2992
  

  
- Da max: 5.8661 in
  

  
- da max: 3.8976 in
  

  
- da min: 3.3858 in
  

  
- Dynamic Load Rating: 28320 lbf
  

  
- Dynamic load rating: 28320 lbf
  

  
- Enclosure: Double Shielded
  

  
- Factor: 13.2
  

  
- I.D.: 75 mm
  

  
- Limiting Speed - Grease: 4300 RPM
  

  
- Limiting speed - grease: 4300 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 160 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: ISO class 0
  

  
- r (in): 0.0827
  

  
- r1: 0.0197 in
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- ras max: 0.0787 in
  

  
- Seal material: None
  

  
- Seal type: None
  

  
- Static Load Rating: 17300 lbf
  

  
- Static load rating: 17300 lbf
  

  
- Type: Deep Groove Ball Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048444/1149_S_Mp8Gsc0.png)
## Alternate products to `NTN 6315ZZ Deep Groove Ball Bearing - 75 mm Bore, Double Shielded - MROSupply.com`:
- [SKF 6315-2Z deep groove ball bearing, 75mm bore, double shielded with metal shields on both sides. Sheet metal cage, normal internal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/320933/as-markdown/)
- [NACHI 6315ZZEC3 Deep Groove Ball Bearing Single Row 75X160X37MM Two Shields Steel Cage C3 Clearance](https://www.mrosupply.com/products/208415/as-markdown/)
- [SKF 6315 2ZJEM is a 75mm bore deep groove ball bearing, double shielded with metal shields, C3 clearance, and a machined brass cage. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/320906/as-markdown/)
- [NSK 6315ZZC3 deep groove ball bearing with 75 mm bore, shielded both sides (ZZ), and C3 clearance. It features a pressed steel cage and is designed for high-speed operation with reduced friction. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5034355/as-markdown/)
- [SKF 6315-2Z/C3 is a 75mm bore deep groove ball bearing with steel shields on both sides and C3 clearance. The pressed steel cage provides reliable roller guidance. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/5830482/as-markdown/)
- [NTN 6315ZZC3/EM is a 63 series single-row deep groove ball bearing with a 75 mm straight bore. It features double metal shields (ZZ), C3 internal clearance, and a machined brass cage. Constructed from high carbon chrome steel, it is designed for electric motors, pumps, fans, and general industrial rotating machinery.](https://www.mrosupply.com/products/278638/as-markdown/)
- [Koyo 6315 ZZ is a 63 series single-row deep groove ball bearing with a 75 mm bore, 160 mm outside diameter, and 37 mm width. It features double steel shields (ZZ) and a pressed steel cage. Designed for radial and moderate axial loads in electric motors, pumps, fans, and general industrial rotating equipment.](https://www.mrosupply.com/products/1495001/as-markdown/)
- [NSK 6315ZZ shielded deep groove ball bearing with 75 mm bore. Double metal shields (ZZ) protect against contaminants. Pressed steel cage and normal clearance. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5034354/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.