Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

BOSTON GEAR Direct-Drive Right-Angle Speed Reducer - Direct-Drive Right-Angle Speed Reducers
BOSTON GEARDirect-Drive Right-Angle Speed Reducers

BOSTON GEAR Direct-Drive Right-Angle Speed Reducer

The BOSTON GEAR Speed Reducer (MPN F7721-40-B5-G) is a direct-drive right-angle speed reducer with a 40:1 ratio, delivering 44 RPM output. It accepts a maximum 0.5 hp input and provides up to 533 in-lb output torque…

SKU 3G-OTH-139456

Also listed as: F772140B5G · F7721 40 B5 G

Brand
BOSTON GEAR
Item
Direct-Drive Right-Angle Speed Reducer
Category
Direct-Drive Right-Angle Speed Reducers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BOSTON GEAR
Manufacturer Part Number
F7721-40-B5-G
Type
44 RPM, 533 in-lb Output Max, Round, 56C, AGMA
Input Max
0.5 hp

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BOSTON GEAR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BOSTON GEAR Speed Reducer (MPN F7721-40-B5-G) is a direct-drive right-angle speed reducer with a 40:1 ratio, delivering 44 RPM output. It accepts a maximum 0.5 hp input and provides up to 533 in-lb output torque. The unit features a 56C frame and round configuration, meeting AGMA standards.

Frequently Asked Questions

What is the BOSTON GEAR Speed Reducer F7721-40-B5-G used for?

This direct-drive right-angle speed reducer is used in industrial machinery to reduce motor speed and increase torque. Common applications include conveyors, packaging equipment, and material handling systems where precise speed control and reliable torque transmission are required.

What are the specifications of the BOSTON GEAR Speed Reducer F7721-40-B5-G?

The BOSTON GEAR Speed Reducer (MPN F7721-40-B5-G) has a 40:1 ratio, 44 RPM output, 0.5 hp maximum input, and 533 in-lb maximum output torque. It features a 56C frame, round configuration, and meets AGMA standards.

Where to buy BOSTON GEAR Speed Reducer F7721-40-B5-G worldwide?

3G Electric supplies the BOSTON GEAR Speed Reducer F7721-40-B5-G worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the right BOSTON GEAR speed reducer for an application?

To select the correct BOSTON GEAR speed reducer, match the input horsepower, output torque, and ratio to your motor and load requirements. Verify the frame size (e.g., 56C) and mounting configuration. Consult AGMA standards for service factors and ensure proper alignment during installation.

Used in

Common applications for BOSTON GEAR
Material handling conveyors — Boston Gear worm gear speed reducers for belt drives
Packaging machinery — Boston Gear helical gear reducers for precise indexing
Food processing equipment — Boston Gear stainless steel speed reducers for washdown environments
Industrial pump drives — Boston Gear clamp collars for shaft coupling alignment
Mixer and agitator systems — Boston Gear oil-impregnated spider inserts for torque transmission
Automated assembly lines — Boston Gear mounting bases for horizontal reducer installation

BOSTON GEAR Products

3G Electric supplies BOSTON GEAR direct-drive right-angle speed reducers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Direct-drive right-angle speed reducer with a 40:1 ratio, delivering 44 RPM output. Accepts a maximum input of 0.3 hp and provides a maximum output torque of 355 in-lb. Features a 56C round input flange and AGMA-rated gearing. Suitable for industrial applications such as conveyors, packaging equipment, and material handling systems
BOSTON GEAR
Direct-drive right-angle speed reducer with a 40:1 ratio, delivering 44 RPM output. Accepts a maximum input of 0.3 hp and provides a maximum output torque of 355 in-lb. Features a 56C round input flange and AGMA-rated gearing. Suitable for industrial applications such as conveyors, packaging equipment, and material handling systems
BOSTON GEAR Speed Reducer: 40:1, 44 RPM, 1 hp Input Max, 1206 in-lb Output Max, Round, 56C (MPN F724-40-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 40:1, 44 RPM, 1 hp Input Max, 1206 in-lb Output Max, Round, 56C (MPN F724-40-B5-G)
This direct-drive right-angle speed reducer provides a 40:1 reduction ratio, delivering 44 RPM output with a maximum input of 0.3 hp and output torque up to 355 in-lb. The round unit features a 56C input flange for motor mounting. Typical applications include conveyors, packaging equipment, and material handling systems requiring speed reduction and torque multiplication
BOSTON GEAR
This direct-drive right-angle speed reducer provides a 40:1 reduction ratio, delivering 44 RPM output with a maximum input of 0.3 hp and output torque up to 355 in-lb. The round unit features a 56C input flange for motor mounting. Typical applications include conveyors, packaging equipment, and material handling systems requiring speed reduction and torque multiplication
BOSTON GEAR Speed Reducer: 60:1, 29 RPM, 0.3 hp Input Max, 440 in-lb Output Max, Round, 56C, AGMA (MPN F7718-60-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 60:1, 29 RPM, 0.3 hp Input Max, 440 in-lb Output Max, Round, 56C, AGMA (MPN F7718-60-B5-G)
BOSTON GEAR Speed Reducer: 40:1, 44 RPM, 1 hp Input Max, 1066 in-lb Output Max, Round, 56C (MPN F726-40-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 40:1, 44 RPM, 1 hp Input Max, 1066 in-lb Output Max, Round, 56C (MPN F726-40-B5-G)
This direct-drive right-angle speed reducer provides a 25:1 reduction ratio, delivering 70 RPM output with a maximum input of 1.5 hp and output torque up to 1056 in-lb. It features a round 56C frame and meets AGMA standards. Typical applications include conveyors, material handling, and packaging equipment where speed reduction and torque multiplication are required
BOSTON GEAR
This direct-drive right-angle speed reducer provides a 25:1 reduction ratio, delivering 70 RPM output with a maximum input of 1.5 hp and output torque up to 1056 in-lb. It features a round 56C frame and meets AGMA standards. Typical applications include conveyors, material handling, and packaging equipment where speed reduction and torque multiplication are required

More from BOSTON GEAR

View all BOSTON GEAR parts
BOSTON GEAR Speed Reducer: 15:1, 117 RPM, 0.25 hp Input Max, 116 in-lb Output Max, Round, 42CZ (MPN F710-15-B4-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 15:1, 117 RPM, 0.25 hp Input Max, 116 in-lb Output Max, Round, 42CZ (MPN F710-15-B4-G)
This direct-drive right-angle speed reducer provides a 50:1 reduction ratio, delivering 35 RPM output from a maximum 0.5 hp input. It offers a maximum output torque of 630 in-lb and features a round housing with a 56C input flange. Commonly used in industrial applications such as conveyors, mixers, and material handling equipment to reduce motor speed and increase torque
BOSTON GEAR
This direct-drive right-angle speed reducer provides a 50:1 reduction ratio, delivering 35 RPM output from a maximum 0.5 hp input. It offers a maximum output torque of 630 in-lb and features a round housing with a 56C input flange. Commonly used in industrial applications such as conveyors, mixers, and material handling equipment to reduce motor speed and increase torque
BOSTON GEAR Speed Reducer: 20:1, 88 RPM, 1 hp Input Max, 590 in-lb Output Max, Round, 56C, Any Angle (MPN F724-20-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 20:1, 88 RPM, 1 hp Input Max, 590 in-lb Output Max, Round, 56C, Any Angle (MPN F724-20-B5-G)
BOSTON GEAR Speed Reducer: 30:1, 58 RPM, 0.16 hp Input Max, 139 in-lb Output Max, Round, 42CZ (MPN F710-30-B4-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 30:1, 58 RPM, 0.16 hp Input Max, 139 in-lb Output Max, Round, 42CZ (MPN F710-30-B4-G)
BOSTON GEAR Speed Reducer: 40:1, 44 RPM, 0.16 hp Input Max, 178 in-lb Output Max, Round, 56C (MPN F713-40-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 40:1, 44 RPM, 0.16 hp Input Max, 178 in-lb Output Max, Round, 56C (MPN F713-40-B5-G)
BOSTON GEAR Speed Reducer: 30:1, 58 RPM, 2 hp Input Max, 1663 in-lb Output Max, Round, 180TC/210C (MPN F732-30E-B9-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 30:1, 58 RPM, 2 hp Input Max, 1663 in-lb Output Max, Round, 180TC/210C (MPN F732-30E-B9-G)
BOSTON GEAR Speed Reducer: 10:1, 175 RPM, 1 hp Input Max, 320 in-lb Output Max, Round, 56C, 1 Stages (MPN F721-10-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 10:1, 175 RPM, 1 hp Input Max, 320 in-lb Output Max, Round, 56C, 1 Stages (MPN F721-10-B5-G)
BOSTON GEAR Speed Reducer: 25:1, 70 RPM, 1.5 hp Input Max, 1056 in-lb Output Max, Round, 56C (MPN F726-25-B5-G)
BOSTON GEAR
BOSTON GEAR Speed Reducer: 25:1, 70 RPM, 1.5 hp Input Max, 1056 in-lb Output Max, Round, 56C (MPN F726-25-B5-G)