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  Boston 721-20-G

Boston 721-20-G Boston Gear Reducer 721-20-g Ratio 20:1 1.4 Hp In 892 Lb-in Torque Out
Brand : Boston
Part Number : 721-20-G
Description: Boston Gear Reducer 721-20-g Ratio 20:1 1.4 Hp In 892 Lb-in Torque Out
Condition : Refurbished
Inventory Count : 3  in stock
Price :
Need Help? To replace or repair your 721-20-G contact us today: [email protected] or call Ryan Fitzgerald at (212) 772-6992 ext. 704

Boston 721-20-G In Stock

We have available in stock qty 3 of the 721-20-G original equipment by Boston, in stock for delivery to your location. This original Boston OEM spare is refurbished and in excellent working condition. We may have additional and new units in stock as well. To receive an online quote or obtain additional information simply click here. Qualified York technicians are standing by to assist you.


Support for your Boston 721-20-G

Have a defective unit in need of service or repair? In addition to stocking the Boston 721-20-G spares, we also provide Boston services on the 721-20-G and related equipment. We offer Extended Warranty plans for your Boston 721-20-G as well as Maintenance and Support contracts. For a Boston warranty or support plan to fit your requirements, send an email to [email protected] or call Ryan Fitzgerald at (212) 772-6992 ext. 704


Repair + Rebuild Services for your Boston equipment

We service and repair Boston 721-20-G and related systems and components, including severely damaged and defective units. Our services for the Boston 721-20-G include diagnostic evaluation, troubleshooting, component and board level repair, as well as complete rebuilding of the 721-20-G if necessary. Expedited handling of our evaluations and repairs are included as a standard service for all our clients. All our 721-20-G repairs include a 1 year warranty, covering both parts and labor.

To receive a quote to repair your defective Boston unit(s) simply complete this online form, email [email protected] or call Ryan Fitzgerald at (212) 772-6992 ext. 704


Assistance needed with related items Boston 721-20-G?
Some of the related motion controls products we support:
Boston F72120B7G Browning 72LH050
Boston 71010G Browning 2Q5V75
Boston SRF726W50NB5G Browning 24HH150
Browning CB112520 Boston 72140G
Browning 133Q56LR50 Boston RF71320K5G


We stock a large inventory of Boston industrial automation systems and parts.
We repair, service and calibrate most Boston models of equipment.
We ship Boston replacement parts worldwide, with expedited shipping for your urgent Boston requirements


For immediate assistance click here for quick online help
or contact our Automation & Controls team:

Mr. Ryan Fitzgerald
Director, Industrial Automation & Controls Service Team
[email protected]
(212) 772-6992 ext. 704


Our staff at York Scientific is dedicated to help you succeed with all your mission-critical Boston Industrial Automation equipment needs.

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York Scientific Motion Control + Automation items: Featured for 2025 we have Boston Brand F33230AJ3 in stock, original and quality replacement parts available for immediate shipment. Spare units by Boston such as 73220J equipment made by Boston have been added to our featured items. As a tip, you can find the entire Boston products line-up in our inventory by simply searching for "Boston" in the search box. Due to increase in client demand we have now also available 215SMT25 made by Browning as well as the popular HF72120B5HP16 original spares produced by Boston

Servo VFD Drives, Electrical Contactors, and Motor Rewinding and Rebuilding. Extended service capabilities are now online at our facilities to do complete overhauls of industrial electric motors and spindles. Our industry leading repair services to adhere to the OEM's specifications. Complete overhaul rebuilds include motor bearing replacement, stator rewinding, and rebalancing. Additional overhaul and rebuilding capabilities of products such as the SRF72610B7G23 by Boston and 73220J spares by Boston are also now also our York Scientific's line-up of service offerings. This also includes the original 2300H150 Spares made by leading motion controls manufacturer Brecoflex.

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York Controls features all makes and models of industrial automation systems & parts.

York Controls repairs, services and calibrates every brand and model of equipment.

York Controls ships worldwide, with expedited shipping available for all your urgent requirements.

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