# Kop-Flex 3F SB FR 2280741 FASTS Gear Coupling Size 3 Rough Bore 9.4375" OD 3.125" Max Bore - MROSupply.com

***Kop-Flex 3F SB FR (Rexnord 2280741) Size 3 FASTS gear coupling with standard rough bore, 9.4375" outside diameter, and 3.125" maximum bore. Lifetime metallic seal and 300% greater lubricant capacity extend service life in high-torque industrial applications. Lubricated design ensures reliable power transmission.***



## Product details:

- Catalog number: 2280741
- SKU: 2292900
- Price: ***$2,517.37*** 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: 76.520 lb
- UPC: 662384010220
- 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: 3.125
  

  
- Bore Type: Rough Bore
  

  
- Configuration: Flex Rigid
  

  
- Coupling Size: 3
  

  
- Coupling Type: Gear Coupling
  

  
- Fastener Quantity: 12
  

  
- Fastener Size & Length: 1/2 x 1 5/16
  

  
- Hub Diameter (in): 6.75
  

  
- Length Through Bore (in): 3.46875
  

  
- Lube/Non-Lube: Lubricated
  

  
- Material: Medium Carbon Steel
  

  
- Max Bore w/standard key for Flex Hub: 3.125
  

  
- Measurement System: Imperial
  

  
- Min Compatible Bore Size (in): 0
  

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

  
- Min Compatible Bore Size Rigid Hub (in): 1.375
  

  
- OD: 9.4375
  

  
- Overall Length (in): 7.376
  

  
- Rating HP @ 100 RPM: 160
  

  
- Sleeve Type: Flanged
  

  
- Speed Max (rpm): 6800
  

  
- Style: FASTS
  

  
- Tooth Profile: Straight Faced Involute Hub tooth
  

  
- Torque [Max] (in-lb): 202000
  

  
- Torque Rating (in-lb): 101000
  
## Product documents / software:

- [ Instruction Sheet](https://documents.mrosupply.com/product_documents/3F/3F%20SB%20FR/FORM1900-01.PDF)
- [3D Drawing IGES](https://documents.mrosupply.com/product_documents/3F/3F%20SB%20FR/regalpts_EMERSON-1-5-7_FR-3F_SB_FR_b8SCyaX.IGS)
- [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)