Purchase now: Bonfiglioli W 86 U 15 P100 B14 B3 Gearbox
Purchase now: Atlantechdrives provides you the W 86 U 15 P100 B14 B3, a robust, heavy-duty universal worm gear reducer expertly engineered by the global power transmission specialists at Bonfiglioli. Belonging to the exceptionally durable W Series, this gearbox is specifically designed to handle intense industrial torque applications and severe radial shock loads that would instantly destroy standard lightweight aluminum drives. The «U» designation stands for a Universal unibody cast-iron housing, precision-machined on multiple geometric faces to provide unmatched mounting flexibility in complex industrial machine frames. This specific unit is configured with a versatile, relatively fast 15:1 reduction ratio, making it the perfect 90-degree transmission for high-speed automated packaging, continuous sorting conveyors, and dynamic industrial mixing vats. Designed to accept a robust IEC P100 frame electric motor via a compact B14 face-mount flange, it offers a formidable blend of speed, spatial efficiency, and uncompromising mechanical durability.
Technical Specifications of the W 86 U 15 P100 B14 B3
The W 86 series utilizes a profile-ground steel worm shaft paired with a highly wear-resistant, centrifugally cast bronze worm wheel. This heavy-duty metallurgical combination ensures optimal sliding friction, drastically reducing operating noise and extending the lifespan under brutal, continuous 24/7 duty cycles.
- Part Number: W 86 U 15 P100 B14 B3
- Gearbox Series: W (Heavy-Duty Cast Iron Worm Gear)
- Frame Size: 86 (Large industrial frame)
- Housing Type: U (Universal, multi-face mounting)
- Reduction Ratio (i): 15:1 (Low ratio, high output speed)
- Motor Interface: IEC P100 frame
- Motor Flange Type: B14 (Compact face mount)
- Mounting Position: B3 (Horizontal, foot mounted)
Expert Tips: Total Dynamic Reversibility
Understanding mechanical holding power is absolutely vital when dealing with lower worm gear ratios like this one. Expert Tip: The 15:1 reduction ratio places the W 86 squarely in the category of total dynamic reversibility. Because the lead angle of the internal steel worm thread must be relatively steep to achieve this fast speed and high efficiency, the gearbox will offer virtually zero resistance to back-driving. This means that if you turn off the electric motor, any kinetic load or heavy weight attached to the output shaft will instantly back-drive the gearbox and cause the motor to spin freely backward. It will not act as a mechanical brake under any circumstances. If your application involves holding a suspended load against gravity or requires sudden stops, you must absolutely install an external failsafe electromechanical brake on your AC motor.
Maintenance: Thermal Expansion and Vent Plugs
Unlike smaller fractional gearboxes that are sealed for life, the heavy-duty W 86 size requires active internal pressure management. This specific gearbox is configured from the factory for the B3 mounting position (horizontal, with the mounting feet at the bottom). As the sliding friction heats the internal synthetic ISO VG gear oil during operation, the air inside the massive cast-iron housing expands. To prevent this expanding pressure from blowing out the critical input and output rubber oil seals, Bonfiglioli installs a breather/vent plug at the highest point of the gearbox based strictly on this B3 orientation. If you alter your machine design and mount this gearbox vertically, you must physically relocate the vent plug to the new highest port, or you will experience a catastrophic lubrication leak.
Frequently Asked Questions (FAQs)
Q: What size motor shaft does the P100 B14 input accept?
A: A standard IEC 100 frame motor features a 28mm diameter solid shaft. The B14 face-mount flange for the 100 frame has an outer diameter of 160mm. The gearbox input quill and mounting face are perfectly matched to these standard dimensions.
Q: Can I use standard automotive gear oil in the W 86?
A: No. High-performance industrial worm gears require specific synthetic gear oil to handle the extreme pressure (EP) sliding friction and elevated operating temperatures. Using standard mineral or automotive oil will cause premature bronze wheel failure.
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