# Boston Gear F843B-56K-B5-M1 Helical Speed Reducer 56:1 Ratio Case Size 4 3 Stages - MROSupply.com

***Boston Gear 30267751 F843B-56K-B5-M1 helical speed reducer with 56:1 ratio, case size 4, and 3 helical stages. Features a 56C input flange (B5) and M1 output configuration. Cast iron housing for general industrial power transmission applications.***



## Product details:

- Catalog number: F843B-56K-B5-M1
- SKU: 45953
- Price: ***$1,438.76*** 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: 37.100 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:
- 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.
- Quality - very high quality. using these gears in a model 9 cylinder radial engine with a 1"
bore. about 8 h.p. , for oil pump a scavenge pump timing gears and distributor . very good quality gears.
- Worm - Haven't used them yet, but they match the worm gear perfectly. They should serve the purpose for which I purchased them.