# TB Woods 7C138 Sure-Flex Plus Flange - Size 7, Type C, 1-3/8" Bore - MROSupply.com

***TB Woods 7C138 Sure-Flex Plus Type C flange with 1-3/8" finished bore for a Size 7 elastomeric sleeve coupling. High-strength cast-iron construction with setscrew clamping. Compatible with EPDM, Neoprene, Hytrel, and Urethane sleeves; rated up to 940 in-lb continuous torque with EPDM/Neoprene and 2,875 in-lb with Hytrel.***



## Product details:

- Catalog number: 7C138
- SKU: 337367
- Price: ***$218.89*** 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: 3.600 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: 1 3/8 in
  

  
- Bore size (in): 1-3/8
  

  
- Bore tolerance: +.0005 to +.0015
  

  
- Bore tolerance (in): +0.0005 to +0.0015
  

  
- Capscrew size: 5/16-24 NF X 1 1/4
  

  
- Capscrew size (in): 5/16-24 NF X 1 1/4
  

  
- Capscrew torque requirement: 9
  

  
- Capscrew torque requirment (ft lbs): 30
  

  
- Component WR2 (lbs ft2): 0.0596
  

  
- Component WR²: 0.0596
  

  
- Construction type: Finish bore with keyway
  

  
- Coupling size: 7
  

  
- Dimension (in) (C): 2 5/16
  

  
- Dimension (in) (D): 4.625
  

  
- Dimension (in) (H): 3-1/4
  

  
- Dimension (in) (S): 7/16
  

  
- Dimension (in.) (E): 1.41
  

  
- Flange diameter: 4.625
  

  
- Horsepower Rating at 100 RPM: 50
  

  
- Keyseat (in): 5/16 x 5/32
  

  
- Keyseat size: 5/16 in x 5/32 in
  

  
- Length through bore: 2.3125
  

  
- Material type: High strength cast iron
  

  
- Max angular gap misalignment: 0.081 (in) with EPDM/Neoprene Sleeves and 0.020 (in) with Hytrel Sleeves
  

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

  
- Max compatible bore size: 1.875
  

  
- Max parallel misalignment: 7
  

  
- Max RPM: 5250
  

  
- Max speed: 5250
  

  
- Min compatible bore size: 0.625
  

  
- Outside diameter: 4.625
  

  
- Power rating at 100 RPM: 1.1 kW with EPDM or Neoprene sleeve, 3.4 kW with Hytrel sleeve
  

  
- Screw size: Setscrew
  

  
- Screw type: Flange, Clamp
  

  
- Set screw distance: 0.4375
  

  
- Setscrew length: 0.5
  

  
- Setscrew length (in): 1/2
  

  
- Setscrew size, location: 5/16 18 UNC, over keyseat
  

  
- Setscrew torque requirement: 13
  

  
- Setscrew Torque Requirment (ft lbs): 13
  

  
- SF flange length: 0.78125
  

  
- SF hub diameter: 3.25
  

  
- SF hub length: 31
  

  
- Torque: 940 in-lb with EPDM or Neoprene sleeve, 2,875 in-lb with Hytrel sleeve
  

  
- Torque rate: 940 (in-lbs) with EPDM or Neoprene sleeve; 2,875 (in-lbs) with Hytrel sleeve
  
## Product documents / software:

- [Catalog Product Section](https://documents.mrosupply.com/product_documents/8C/8CMPB/p-1957-tbw-a4_type-c-sure-flex-plus_VP7UHlN.pdf)
- [Full Catalog](https://documents.mrosupply.com/product_documents/L1/L19050MM/p-1690-tbw_1Ls0HC8.pdf)
- [Installation And Maintenance Manual](https://documents.mrosupply.com/product_documents/13/13S238/p-7888-tbw_7vuiGcx.pdf)
- [Selection Guide](https://documents.mrosupply.com/product_documents/13/13S238/p-1957-tbw-a4_sure-flex-plus-selection-guide_Z0MkHdR.pdf)

## 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
- Tb woods - Excelent recomiendo 100%
- Great service! - It was all sent perfectly and on time
- 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.