# Kop-Flex 4 1/2F FHUB 1960731 FASTS Gear Coupling Flex Hub, Size 4.5, 4.75" Max Bore, 13.625" OD - MROSupply.com

***Kop-Flex 4 1/2F FHUB (Rexnord PN 1960731) Size 4.5 FASTS gear coupling flex hub, 4.75" max bore, 13.625" outside diameter, 6.5" length through bore. Carbon steel construction with lifetime metallic seal design for extended lubricant retention. Engineered for FASTS gear couplings, providing reliable torque transmission in industrial drivetrains.***



## Product details:

- Catalog number: 1960731
- SKU: 2292937
- Price: ***$1,287.44*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [KOP-FLEX](https://www.mrosupply.com/brands/kop-flex/)
- Category: 
    - [Hubs](htts://www.mrosupply.com/shaft-couplings-and-collars/gear-couplings/components/hubs/)
    - [Components](htts://www.mrosupply.com/shaft-couplings-and-collars/gear-couplings/components/)
    - [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: 59.940 lb
- UPC: 662384145090
- Returns: Yes
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Bore Size Max: 4.75
  

  
- Bore Type: Rough Bore
  

  
- Component Type: Flex Hub
  

  
- Coupling Size: 4.5
  

  
- Coupling Type: Gear Coupling
  

  
- Height (in): 7.00
  

  
- Hub Diameter (in): 6.5
  

  
- Length (in): 11.90
  

  
- Length Through Bore (in): 6.5
  

  
- Length Through Bore (mm): 165.1
  

  
- Lube/Non-Lube: Lubricated
  

  
- Material: Carbon steel
  

  
- Max Bore w/standard key: 4.75
  

  
- Measurement System: Imperial
  

  
- Model: FASTS
  

  
- OD: 13.625
  

  
- Size Code: 4.5
  

  
- Sleeve Outside Diameter (in): 13.625
  

  
- Speed Max (rpm): 4770
  

  
- Tooth Profile: Straight
  

  
- Torque Rating (in-lb): 318000
  

  
- Width: 12.00
  
## Product documents / software:

- [ Instruction Sheet](https://documents.mrosupply.com/product_documents/4%20/4%201/2F%20FHUB/FORM1900-01.PDF)
- [Catalog Page](https://documents.mrosupply.com/product_documents/4%20/4%201/2F%20FHUB/KIP04-p136.pdf)
- [Installation Manual - Revised 2016](https://documents.mrosupply.com/product_documents/22/93/2293010/multi-brands2F199_krkKRol.pdf)