# Boston Gear 30267673 F842B-5.7K-B7-M1 Helical Speed Reducer 5.7:1 Ratio 2 Stages Case Size 4 - MROSupply.com

***Boston Gear 30267673 F842B-5.7K-B7-M1 helical speed reducer with 5.7:1 ratio, 2 helical stages, and case size 4. The unit features a 140TC input flange (B7) and is designed for general industrial power transmission applications requiring compact right-angle or inline speed reduction.***



## Product details:

- Catalog number: F842B-5.7K-B7-M1
- SKU: 45879
- Price: ***$1,154.34*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Boston Gear](https://www.mrosupply.com/brands/boston-gear/)
- Category: 
    - [Quill Input Inline Helical Reducers](htts://www.mrosupply.com/speed-reducers/inlineconcentric-speed-reducers/inline-helical-speed-reducers/quill-input-inline-helical-reducers/)
    - [Inline Helical Speed Reducers](htts://www.mrosupply.com/speed-reducers/inlineconcentric-speed-reducers/inline-helical-speed-reducers/)
    - [Inline/Concentric Speed Reducers](htts://www.mrosupply.com/speed-reducers/inlineconcentric-speed-reducers/)
    - [Speed Reducers](htts://www.mrosupply.com/speed-reducers/)
- Unit of measure: each
- Weight: 29.100 lb
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product documents / software:

- [Catalog Product Section](https://documents.mrosupply.com/product_documents/D0/D02379/p-1485-bg_800b_in-line_helical.pdf)
- [Engineering Data](https://documents.mrosupply.com/product_documents/D0/D02637/p-1485-bg_engineering-section_HDosJBH.pdf)
- [Full Catalog](https://documents.mrosupply.com/product_documents/D0/D02637/p-1485-bg_fKcoPkR.pdf)
- [Installation & Operation Manual](https://documents.mrosupply.com/product_documents/D0/D02637/p-3010-bg_40ahQ0b.pdf)

## Product's reviews:
- Speed reducer purchase - The purchase was easy it did take two purchase until we got the correct part I guess it was a fault on both parts as we were looking at the wrong part number, but overall the purchase was good part fit perfectly. Thanks for your support.
- Exactly what i needed - Item was exactly what I needed and a perfect fit for my project. Extremely happy.
- 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.
- 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.