# TB Woods 12S258 Sure-Flex Plus Flange - Size 12, Type S, 2-5/8" Bore - MROSupply.com

***TB Woods 12S258 Sure-Flex Plus Type S flange with 2-5/8" finished bore for a Size 12 elastomeric sleeve coupling. High-strength cast-iron construction with a 5/8" x 5/16" keyseat and setscrew locking. Compatible with EPDM, Neoprene, Hytrel, and Urethane sleeves; rated up to 9,360 in-lb continuous torque with EPDM/Neoprene and 31,500 in-lb with Hytrel at 2,800 max RPM.***



## Product details:

- Catalog number: 12S258
- SKU: 340248
- Price: ***$262.33*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [TB Woods](https://www.mrosupply.com/brands/tb-woods/)
- Category: 
    - [Complete Units](htts://www.mrosupply.com/shaft-couplings-and-collars/gear-couplings/complete-units/)
    - [Gear Couplings](htts://www.mrosupply.com/shaft-couplings-and-collars/gear-couplings/)
    - [Shaft Couplings and Collars](htts://www.mrosupply.com/shaft-couplings-and-collars/)
- Unit of measure: each
- Weight: 26.600 lb
- Technicall support: contact supplier for technical support on 888-829-6637


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


## Product attributes;

  
- Bore size: 2 5/8 in
  

  
- Bore size (in): 2 5/8
  

  
- Bore tolerance: +.0005 to +.0020
  

  
- Bore tolerance (in): +0.0005 to +0.0020
  

  
- Component WR2 (lbs ft2): 1.9395
  

  
- Component WR²: 1.9395
  

  
- Construction type: Finish bore with keyway
  

  
- Coupling size: 12
  

  
- Dimension (in) (C): 4
  

  
- Dimension (in) (D): 10
  

  
- Dimension (in) (H): 5 3/4
  

  
- Dimension (in) (S): 3/4
  

  
- Dimension (in) (T): 1-11/16
  

  
- Dimension (in.) (E): 1 9/32
  

  
- Flange diameter: 10
  

  
- Horsepower Rating at 100 RPM: 66
  

  
- Keyseat (in): 5/8 x 5/16
  

  
- Keyseat size: 5/8 in x 5/16 in
  

  
- Length through bore: 4
  

  
- Material type: High strength cast iron
  

  
- Max angular gap misalignment: 0.175 (in) with EPDM/Neoprene Sleeves and 0.042 (in) with Hytrel Sleeves
  

  
- Max angular misalignment: 1° with EPDM/neoprene sleeves and 1/4° with hytrel sleeves
  

  
- Max compatible bore size: 3.9375
  

  
- Max parallel misalignment: 16
  

  
- Max RPM: 2800
  

  
- Max speed: 2800
  

  
- Min compatible bore size: 0.875
  

  
- Outside diameter: 10
  

  
- Power rating at 100 RPM: 11 kW with EPDM or Neoprene sleeve, 37 kW with Hytrel sleeve
  

  
- Screw size: Setscrew
  

  
- Screw type: Flange, Type S
  

  
- Set screw distance: 0.75
  

  
- Setscrew length: 1
  

  
- Setscrew length (in): 1
  

  
- Setscrew size, location: 5/8 11 UNC, One over KS and at 90 Degrees
  

  
- Setscrew torque requirement: 50
  

  
- Setscrew Torque Requirment (ft lbs): 50
  

  
- SF flange length: 1.6875
  

  
- SF hub diameter: 5.75
  

  
- SF hub length: 28
  

  
- Torque: 9,360 in-lb with EPDM or Neoprene sleeve, 31,500 in-lb with Hytrel sleeve
  

  
- Torque rate: 9,360 (in-lbs) with EPDM or Neoprene sleeve; 31,500 (in-lbs) with Hytrel sleeve
  
## Product documents / software:

- [Catalog Product Section](https://documents.mrosupply.com/product_documents/13/13S238/p-1957-tbw-a4_type-s-sure-flex-plus_6glsuFz.pdf)
- [Full Catalog](https://documents.mrosupply.com/product_documents/L1/L19050MM/p-1690-tbw_QTKXQZG.pdf)
- [Installation And Maintenance Manual](https://documents.mrosupply.com/product_documents/13/13S238/p-7888-tbw.pdf)
- [Selection Guide](https://documents.mrosupply.com/product_documents/13/13S238/p-1957-tbw-a4_sure-flex-plus-selection-guide.pdf)
## Alternate products to `TB Woods 12S258 Sure-Flex Plus Flange - Size 12, Type S, 2-5/8" Bore - MROSupply.com`:
- [Dodge 004714 D-Flex 12S sleeve coupling flange with 2-5/8" bore, cast iron construction. Bored-to-size shaft attachment for Type S couplings. Rated for 2800 RPM maximum speed.](https://www.mrosupply.com/products/116928/as-markdown/)
- [Martin 12S 2 5/8 cast iron coupling hub for Quadra-Flex, Martin-Flex, or Go-Flex flexible shaft couplings. Size 12S with 2-5/8" bore and 10.000" outside diameter. Compatible with J (sintered steel), S (cast iron), or B (QD bushed) flanges.](https://www.mrosupply.com/products/249350/as-markdown/)

## Product's reviews:
- 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.
- Tb woods - Excelent recomiendo 100%
- Sales - I have all good experiences with your staff.
Thank you for the support.
- Sleeve - Thanks for quick service and delivery was not long!