Purchase now: Bonfiglioli VF 44 V 70 P63 B14 B3 Gearbox
Purchase now: Atlantechdrives provides you the VF 44 V 70 P63 B14 B3, an exceptionally durable and highly compact worm gear reducer engineered by Bonfiglioli. The VF 44 series represents the global standard for light-to-medium industrial power transmission, offering unbeatable value and extreme reliability. What sets this specific configuration apart is its massive 70:1 reduction ratio. By taking the high-speed input from a standard IEC P63 electric motor and reducing it 70 times, this gearbox acts as a massive torque multiplier, delivering incredibly slow, powerful rotational force at a 90-degree angle. It is the perfect hardware choice for slow-moving indexing tables, precision dosing pumps, automated gate operators, and heavy lifting winches where high torque and spatial efficiency are the top priorities.
Technical Specifications of the VF 44 V 70 P63 B14 B3
Housed in a lightweight but highly rigid die-cast aluminum casing, the VF 44 utilizes a hardened steel worm shaft driving a high-grade bronze worm wheel. This metallurgical pairing ensures smooth sliding friction and long-term durability under heavy loads.
- Part Number: VF 44 V 70 P63 B14 B3
- Gearbox Series: VF (Worm Gear Reducer)
- Frame Size: 44
- Configuration: V (Standard housing configuration)
- Reduction Ratio (i): 70:1 (High ratio torque multiplier)
- Motor Interface: IEC P63 frame
- Motor Flange Type: B14 (Compact face mount)
- Mounting Position: B3 (Horizontal foot mount)
Expert Tips: The Physics of Static Irreversibility
When dealing with high-ratio worm gears, engineers must understand the concept of «self-locking.» Expert Tip: Because this specific VF 44 gearbox features an extremely high reduction ratio of 70:1, the lead angle of the steel worm shaft is very shallow. This creates a mechanical phenomenon known as Static Irreversibility (or self-locking). This means that while the electric motor can easily turn the gearbox to drive the load, the load itself cannot easily «back-drive» the gearbox when the motor is turned off. If you are lifting a heavy weight, the gearbox will act as a natural brake and hold the weight in place. However, heavy vibrations can occasionally break this static friction. If holding a load is a strict safety requirement (such as in an elevator or hoist), you must still install an external failsafe motor brake to comply with safety regulations.
Maintenance and B14 Flange Mounting
The VF 44 utilizes a compact B14 motor input flange. When bolting your IEC P63 motor to this face-mount flange, it is critical to torque the bolts evenly in a star pattern. If the motor is bolted on crookedly, the motor shaft will bind inside the input quill of the gearbox, instantly destroying the motor bearings and overheating the internal synthetic oil. Furthermore, this gearbox is designated for the «B3» horizontal mounting position. Even though it is a sealed aluminum unit, the internal oil levels are optimized for this specific flat orientation to ensure the bronze wheel is properly submerged in the oil bath.
Frequently Asked Questions (FAQs)
Q: Will a 70:1 ratio gearbox run hot?
A: Yes. Worm gearboxes with high reduction ratios (like 70:1) have lower mechanical efficiency (often around 50-60%) due to the high amount of sliding friction. A significant portion of the motor’s power is converted into heat. The aluminum housing will feel hot to the touch during continuous operation, which is perfectly normal.
Q: Does this unit require periodic oil changes?
A: No. The Bonfiglioli VF 44 size is lubricated for life at the factory using premium synthetic oil. It does not have drain or fill plugs and requires zero maintenance beyond keeping the exterior clean for heat dissipation.
Do you need more references from this brand? Explore our full catalog of Bonfiglioli here.
If your material handling application demands a primary right-angle transmission stage with even higher mechanical efficiency, consider upgrading to the heavy-duty A 20 2 UH 40 P80 B5 helical bevel reducer.
