Boston F730A-20-B9-J

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Long recognized as a pioneer among OEM and MRO manufacturers, Boston Gear has been producing dependable products since 1877 – and at the top of the list is our 700 Series worm gear speed reducer. Our 700 Series is known throughout the industry for its durable, efficient, and trouble-free performance. And with our Reducer Express™ service, we’ll ship any of our 15 million different speed reducer combinations, in stock or not, by air within 24 hours – or we’ll pay the freight. To find out how to incorporate Boston Gear’s world-class reputation into your designs overnight, go to BostSpec2, our specification and design center.


700 Series Worm Gear Speed Reducers

• 6 New Bore Sizes Ranging from 2” to 3 7/16”
• Reduction of Drivetrain Components through Shaft Mounting Flexibility
• Backwards compatible with 700 Series’ Industry-Standard Mounting Dimensions
• Larger Output Bearings for Greater Rigidity
• Output Torque more than Doubles as Compared with 738 Center Distance
• Good for Heavy Duty Conveyor Systems
• Good for Large Shaft Mount Applications
• Double Reduction Ratios also Available

Technical Specs

Description    F730 S/R RED, 20:1 RATIO, “A” HORIZ. BASE, “J” ASSY
Reduction    SINGLE
Output Shaft    SOLID O/P
Base    “A” HORIZ. BASE
Input Style    QUILL
Fan Cooled Rating?    NO
Output RPM @1750    87.5
Ratio    20
Shaft Assembly Code    J
Torque Cap (LB-IN)    1860
Bore Code    B9 – 180TC
Motor HP (Class I)    3
Flange    Yes

Click on the links below to see Drawings and Specs:


BostonGear-Worm Helical Bevel Gear Drives Catalog

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