# Kop-Flex 3 1/2F SB FR FB 2280832 FASTS Gear Coupling Size 3.5 Finished Bore 11" OD 3.75" Max Bore - MROSupply.com

***Kop-Flex 3 1/2F SB FR FB (Rexnord 2280832) Size 3.5 FASTS gear coupling with standard bore, rough bore, and finished bore configuration, 11" outside diameter, 3.75" max bore. Lubricated design with lifetime metallic seal for extended service life and 300% greater lubricant capacity. Finished bore ready for installation in industrial driveline applications.***



## Product details:

- Catalog number: 2280832
- SKU: 2292860
- Price: ***$5,160.71*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [KOP-FLEX](https://www.mrosupply.com/brands/kop-flex/)
- 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: 120.360 lb
- UPC: 662384011814
- Returns: Yes
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Bolt Type: Shrouded
  

  
- Bore Size Max: 3.75
  

  
- Bore Type: Finished Bore
  

  
- Configuration: Flex Rigid
  

  
- Coupling Size: 3.5
  

  
- Coupling Type: Gear Coupling
  

  
- Fastener Quantity: 12
  

  
- Fastener Size & Length: 5/8 x 1 5/8
  

  
- Length Through Bore (in): 4.03125
  

  
- Lube/Non-Lube: Lubricated
  

  
- Material: Medium Carbon Steel
  

  
- Max Bore w/standard key for Flex Hub: 3.75
  

  
- Measurement System: Imperial
  

  
- Min Compatible Bore Size (in): 0
  

  
- Min Compatible Bore Size Flex Hub (in): 0
  

  
- Min Compatible Bore Size Rigid Hub (in): 2.25
  

  
- OD: 11
  

  
- Rating HP @ 100 RPM: 235
  

  
- Speed Max (rpm): 6000
  

  
- Style: FASTS
  

  
- Tooth Profile: Straight Faced Involute Hub tooth
  

  
- Torque [Max] (in-lb): 296000
  

  
- Torque Rating (in-lb): 148000
  
## Product documents / software:

- [ Instruction Sheet](https://documents.mrosupply.com/product_documents/3%20/3%201/2F%20SB%20FR%20FB/FORM1900-01.PDF)
- [Catalog Page](https://documents.mrosupply.com/product_documents/1%20/1%201/2F%20EB%20FR%20FB/KIP04-p138.pdf)
- [Installation Manual - Revised 2016](https://documents.mrosupply.com/product_documents/22/93/2293010/multi-brands2F199_krkKRol.pdf)