# TB Woods J312 Sure-Grip QD Bushing - J Series, 3-1/2" Bore - MROSupply.com

***TB Woods J312 Sure-Grip QD bushing in the J series with a 3-1/2" finished bore. Cast-iron body with standard ANSI keyway and three 5/8-11 capscrews for the industry-standard QD interface on sheaves and sprockets. Rated for 55,000 in-lb torque capacity with 135 in-lb installation torque.***



## Product details:

- Catalog number: J312
- SKU: 340353
- Price: ***$309.33*** 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 J](htts://www.mrosupply.com/bushings/quick-disconnect-bushings/type-j/)
    - [Quick Disconnect Bushings](htts://www.mrosupply.com/bushings/quick-disconnect-bushings/)
    - [Bushings](htts://www.mrosupply.com/bushings/)
- Unit of measure: each
- Weight: 18.500 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: 6.25
  

  
- Bore: 3.5
  

  
- Bore (in): 3 1/2
  

  
- Capscrew designation (screw thread size): 5/8-11
  

  
- Capscrew length: 4.5
  

  
- Design: Standard
  

  
- Dimension: 4.5
  

  
- Hardware: Inch series
  

  
- Installation torque: 135
  

  
- Key size: 7/8 x 7/16
  

  
- Keyway: Standard
  

  
- Mounting: STD or REV
  

  
- Number of capscrews: 3
  

  
- Rating (in lbs): 55000
  

  
- Series: Sure-Grip® bushing
  

  
- Size: J
  

  
- TBW group no.: 11320
  

  
- Torque capacity: 55000
  

  
- 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 J312 Sure-Grip QD Bushing - J Series, 3-1/2" Bore - MROSupply.com`:
- [Dodge 120625 J X 3-1/2-KW Quick Disconnect (QD) bushing with 3-1/2" bore, 7/8" x 7/16" keyway, and ductile iron construction. Designed for power transmission shaft mounting, this QD bushing provides a secure, easy-to-install connection for sheaves, sprockets, and pulleys.](https://www.mrosupply.com/products/119005/as-markdown/)
- [Martin J 3 1/2 Type J Quick Disconnect bushing with 3-1/2" bore, cast iron construction, and 7/8" x 7/16" keyway. Provides 45,000 in-lb torque capacity. Interchangeable with Dodge, Browning, and Gates QD systems. Requires J-size QD sheave, sprocket, or pulley hub (sold separately).](https://www.mrosupply.com/products/247634/as-markdown/)

## Product's reviews:
- 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
- Sleeve - Thanks for quick service and delivery was not long!
- Sales - I have all good experiences with your staff.
Thank you for the support.
- Great service! - It was all sent perfectly and on time