# Boston Gear GD81A 30216461 Spur Gear 12 D.P. 81 Teeth 14.5 Degree Pressure Angle - MROSupply.com

***Boston Gear GD81A 30216461 spur gear with 12 diametral pitch, 81 teeth, and 14.5 degree pressure angle. Steel construction for general industrial open gearing applications.***



## Product details:

- Catalog number: GD81A
- SKU: 35692
- Price: ***$236.99*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Boston Gear](https://www.mrosupply.com/brands/boston-gear/)
- Category: 
    - [Change Gears](htts://www.mrosupply.com/gears-gear-racks/gears/change-gears/)
    - [Gears](htts://www.mrosupply.com/gears-gear-racks/gears/)
    - [Gears & Gear Racks](htts://www.mrosupply.com/gears-gear-racks/)
- Unit of measure: each
- Weight: 4.961 lb
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Bore Diameter (IN): 1. 000
  

  
- Face Width (IN): 0. 750
  

  
- Hub Diameter (IN): 2. 19
  

  
- Outside Diameter (IN): 6. 920
  

  
- Pitch Diameter (IN): 6. 750
  

  
- Speed: 300 RPM
  

  
- Torque Rating (LB IN): 493. 8 @ 300 RPM MAX
  
## Product documents / software:

- [Catalog Product Section](https://documents.mrosupply.com/product_documents/38/38846/p-1930-bg_spur-gears_XPDPy70.pdf)
- [Engineering Data](https://documents.mrosupply.com/product_documents/38/38846/p-1930-bg_engineering-info-spur-gears_Zlip3tk.pdf)
- [Full Catalog](https://documents.mrosupply.com/product_documents/57/57878/p-1930-bg.pdf)

## Product's reviews:
- Excellent customer service - The couplings are just what they are supposed to be. But I wanted to comment on MRO. This was my first order with them and I was extremely surprised at how well the company is run. I will be doing more business with them in the future.
- 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.
- Finding the right parts. - MRO made it quick and easy.
- Gear box oil - This has been very hard to find. It’s the oil spec’ed for my 1950s Rockwell wedge bed planer gear box. I haven’t found it anyplace else.