# Kop-Flex 2 1/2B EB RHUB 1961903 Model B Gear Coupling Rigid Hub Extended Bore 7" OD 3.25" Max Bore - MROSupply.com

***Kop-Flex 2 1/2B EB RHUB (1961903) Size 2.5 Model B gear coupling rigid hub with extended bore, 7" outside diameter, 3.25" max bore, and 2.5625" length through bore. Carbon steel construction for reliable power transmission in industrial drivelines. Designed to mate with Model B gear coupling sleeves.***



## Product details:

- Catalog number: 1961903
- SKU: 2293167
- Price: ***$864.98*** 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: 15.240 lb
- UPC: 662384947144
- 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: Exposed
  

  
- Bore Size Max: 3.25
  

  
- Bore Type: Rough Bore
  

  
- Component Type: Rigid Hub
  

  
- Configuration: Flex-Rigid
  

  
- Coupling Size: 2.5
  

  
- Coupling Type: Gear Coupling
  

  
- Height (in): 7.50
  

  
- Hub Diameter (in): 4.75
  

  
- Length (in): 7.50
  

  
- Length Through Bore (in): 2.5625
  

  
- Length Through Bore (mm): 65.0875
  

  
- Lube/Non-Lube: Lubricated
  

  
- Material: Carbon steel
  

  
- Max Bore w/standard key for Rigid Hub: 3.25
  

  
- Measurement System: Imperial
  

  
- Model: Model B
  

  
- OD: 7
  

  
- Size Code: 2.5
  

  
- Sleeve Outside Diameter (in): 7
  

  
- Speed Max (rpm): 7900
  

  
- Tooth Profile: Straight
  

  
- Torque Rating (in-lb): 39000
  

  
- Width: 7.00
  
## Product documents / software:

- [ Instruction Sheet](https://documents.mrosupply.com/product_documents/2%20/2%201/2B%20EB%20RHUB/FORM1900-01.PDF)
- [Catalog Page](https://documents.mrosupply.com/product_documents/3%20/3%201/2B%20SB%20FR%20FB/KIP04-p156.pdf)
- [Installation Manual - Revised 2016](https://documents.mrosupply.com/product_documents/22/93/2293010/multi-brands2F199_krkKRol.pdf)