# Kop-Flex 4H FHUB 1963271 Series H Gear Coupling Flex Hub, Size 4, Carbon Steel, 12.5" OD, 5.5" Max Bore, 4.75" Length Through Bore - MROSupply.com

***Kop-Flex 4H FHUB (Rexnord PN 1963271) is a Size 4 Series H Gear Coupling Flex Hub made of carbon steel. It has a 12.5" outside diameter, 5.5" maximum bore size, and 4.75" length through bore. This flex hub is designed for use with Series H gear coupling sleeves, providing a drop-in replacement for competitor sizes 1-7.***



## Product details:

- Catalog number: 1963271
- SKU: 2292102
- Price: ***$775.52*** 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: 60.060 lb
- UPC: 662384404098
- 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: 5.5
  

  
- Bore Type: Rough Bore
  

  
- Component Type: Flex Hub
  

  
- Configuration: Full Flex
  

  
- Coupling Size: 4
  

  
- Coupling Type: Gear Coupling
  

  
- Height (in): 5.70
  

  
- Hub Diameter (in): 7.75
  

  
- Length (in): 13.00
  

  
- Length Through Bore (in): 4.75
  

  
- Length Through Bore (mm): 120.65
  

  
- Lube/Non-Lube: Lubricated
  

  
- Material: Carbon steel
  

  
- Max Bore w/standard key: 5.5
  

  
- Measurement System: Imperial
  

  
- Model: Series H
  

  
- OD: 12.5
  

  
- Size Code: 4
  

  
- Sleeve Outside Diameter (in): 12.5
  

  
- Speed Max (rpm): 5260
  

  
- Tooth Profile: Crowned
  

  
- Torque Rating (in-lb): 236000
  

  
- Width: 13.20
  
## Product documents / software:

- [ Instruction Sheet](https://documents.mrosupply.com/product_documents/3%20/3%20SB%20SP/FORM1912-01.PDF)
- [Catalog Page](https://documents.mrosupply.com/product_documents/2%20/2%201/2H%20SB%20SLEEVE/KIP04-p166.pdf)
- [Installation Manual - Revised 2016](https://documents.mrosupply.com/product_documents/22/92/2292232/multi-brands2F200_ATLe8g6.pdf)