# Boston Gear F842B50SB5M2 Helical Speed Reducer 50:1 Ratio 56C Input Flange - MROSupply.com

***Boston Gear 30263943 F842B50SB5M2 helical speed reducer with 50:1 ratio and 56C input flange. Designed for inline mounting in industrial power transmission applications requiring compact, high-efficiency speed reduction.***



## Product details:

- Catalog number: F842B50SB5M2
- SKU: 2040013
- Price: ***$685.61*** 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
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Over 40 different ratios 1.5: 1 - 71:1 double-reduction ratios 36:1 - 250:1 triple-reduction ratios
  

  
- Ratios up to 70: 1 in just two stages means increased efficiency and reduced case size.
  
## Product documents / software:

- [Data Sheet](https://documents.mrosupply.com/product_documents/40/42/40424/p-1485-bg_800b_in-line_helical_em5Xii1.pdf)

## Product's reviews:
- 80 tooth change gear - Exact part for the machine, deliverd quickly, and priced right!
- 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.
- Fast shipping - I ordered this part hoping it would arrive within 2 weeks because I had an emergency situation with an employee waiting to repair a piece of equipment at a customer’s location. The part actually arrived halfway across the country in 5 days including the weekend. MRO processed, packaged and shipped it with incredible speed. Thanks again!
- 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.