# Boston Gear QC721-40-B5-J 40:1 Worm Gear Speed Reducer, 2.1" Center Distance, 56C Quick Connect Flange, Right Side Solid Output Shaft - MROSupply.com

***Boston Gear QC721-40-B5-J 40:1 single reduction worm gear speed reducer with 2.1" center distance. 700 Series cast iron housing with 56C quick connect flange input and right side solid output shaft. Output bore diameter is 1".***



## Product details:

- Catalog number: QC721-40-B5-J
- SKU: 43888
- Price: ***$891.77*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Boston Gear](https://www.mrosupply.com/brands/boston-gear/)
- Category: 
    - [3-Piece Coupled Input Output Shaft Right Worm Gear](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/3-piece-coupled-input-worm-gear-reducers/3-piece-coupled-input-output-shaft-right-worm-gear/)
    - [3-Piece Coupled Input Worm Gear Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/3-piece-coupled-input-worm-gear-reducers/)
    - [Right Angle Worm Gear Speed Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/)
    - [Right Angle Speed Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/)
    - [Speed Reducers](htts://www.mrosupply.com/speed-reducers/)
- Unit of measure: each
- Weight: 36.100 lb
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Bore/Shaft Diameter: 1"
  

  
- Center Distance: 2.1"
  

  
- Input Flange: 56C
  

  
- Input Size: 56C
  

  
- Input Style: 3-Piece Coupled
  

  
- Input Type: Flange
  

  
- Output: Right
  

  
- Output Type: Solid Output Shaft
  

  
- Paint/Coating: Gray
  

  
- Ratio: 40 to 1
  

  
- Reduction: Single
  

  
- Shaft Projection: Right Side
  


## Product's reviews:
- New lead screw gear. - Used this gear on a new lead screw l made for my old 1919 LeBlond belt drive lathe. It worked great for my application.
- Good quality, fast delivery. - Easy ordering, don't have a minimum quantity, and fast delivery. Very satisfied with order.
- Boston gear order - MRO had the items that I needed. I ordered them and they were shipped faster than I expected. It was a pleasant experience all around.
- Shaft output is reversible - Description should say that shaft is reversible. Other than that perfect fit. Good communication from the shipping folks.