# TB Woods N478 Sure-Grip QD Bushing - N Series, 4-7/8" Bore - MROSupply.com

***TB Woods N478 Sure-Grip QD bushing in the N series with a 4-7/8" finished bore. Cast-iron body with standard ANSI keyway and four 7/8-9 capscrews, rated for 150,000 in-lb torque capacity. Designed for the industry-standard QD interface on sheaves, sprockets, and couplings.***



## Product details:

- Catalog number: N478
- SKU: 337939
- Price: ***$1,167.31*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [TB Woods](https://www.mrosupply.com/brands/tb-woods/)
- Category: 
    - [Type N](htts://www.mrosupply.com/bushings/quick-disconnect-bushings/type-n/)
    - [Quick Disconnect Bushings](htts://www.mrosupply.com/bushings/quick-disconnect-bushings/)
    - [Bushings](htts://www.mrosupply.com/bushings/)
- Unit of measure: each
- Weight: 58.100 lb
- Technicall support: contact supplier for technical support on 888-829-6637


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


## Product attributes;

  
- Bolt circle: 8.5
  

  
- Bore: 4.875
  

  
- Bore (in): 4 7/8
  

  
- Capscrew designation (screw thread size): 7/8 9
  

  
- Capscrew length: 8
  

  
- Design: Standard
  

  
- Dimension: 8.13
  

  
- Hardware: Inch series
  

  
- Installation torque: 300
  

  
- Key size: 33
  

  
- Keyway: Standard
  

  
- Mounting: Standard
  

  
- Number of capscrews: 4
  

  
- Rating (in lbs): 150000
  

  
- Series: Sure-Grip® bushing
  

  
- Size: N
  

  
- TBW group no.: 11320
  

  
- Torque capacity: 150000
  

  
- Type: OD
  
## Product documents / software:

- [Catalog Product Section](https://documents.mrosupply.com/product_documents/N4/N412/sec-a1_yYxsZio.pdf)
- [Full Catalog](https://documents.mrosupply.com/product_documents/N4/N412/p-1687-tbw_ORsxZDt.pdf)
- [Installation And Maintenance Manual](https://documents.mrosupply.com/product_documents/N4/N412/p-5070-tbw_46RSr5N.pdf)
## Alternate products to `TB Woods N478 Sure-Grip QD Bushing - N Series, 4-7/8" Bore - MROSupply.com`:
- [Martin N 4 7/8 Type N Quick Disconnect (QD) bushing with 4-7/8" bore, cast iron construction, 1-1/4" x 5/8" keyway, and 7/8-9 set screw. Industry-interchangeable with Dodge, Browning, and Gates QD systems. Rated for 150,000 in-lb torque.](https://www.mrosupply.com/products/248247/as-markdown/)
- [Dodge 119952 Type N Quick Disconnect (QD) bushing for industrial power transmission shaft mounting. Ductile iron construction with 4-7/8" bore. Four-bolt flange design provides secure shaft attachment. Suitable for heavy-duty applications requiring reliable torque transmission and easy installation and removal.](https://www.mrosupply.com/products/119457/as-markdown/)
- [Browning N 4 7/8 1075738 Q-D Quick Disconnect bushing with a 4-7/8-inch bore and 7-inch outer diameter. Gray iron construction with a keyway for secure shaft mounting. The Q-D tapered design allows fast installation and removal without disturbing surrounding components. Compatible with all Browning Q-D bushed sheaves, sprockets, and pulleys.](https://www.mrosupply.com/products/2287876/as-markdown/)

## Product's reviews:
- Sales - I have all good experiences with your staff.
Thank you for the support.
- Didn’t use yet - I really didn’t use them yet but the belts I received were actually Carlisle belts which are made by Timken. I had ordered a belt that I knew was Carlisle at the same time to try out the difference brands and it was the same belt. The only difference was the TB Woods belt was $10 more per belt so you might as well just buy the Carlisle/ Timken directly.
- Muy buen servicio y rapidez en la entrega - Primera vez q compro con esta compañía, recomiendo ampliamente comprar con ellos y claro q volveria a comprar otra vez muy buen servicio y entrega rapida
- Tb woods - Excelent recomiendo 100%