Purchase now: Bonfiglioli VF 44 F2 100 P63 B5 Gearbox
Purchase now: Atlantechdrives provides you the VF 44 F2 100 P63 B5, an ultra-compact, high-ratio worm gear reducer expertly engineered by the global power transmission specialists at Bonfiglioli. Belonging to the highly versatile VF Series, this gearbox is the industry gold standard for space-constrained, 90-degree power transmission applications. This specific unit features an exceptionally high 100:1 reduction ratio. This massive torque multiplication factor makes it the ultimate solution for ultra-slow moving conveyor belts, heavy-duty rotary indexing tables, precision positioning machinery, and automated dosing systems. Configured with a specialized «F2» output flange, it is designed to bolt directly onto the chassis of your driven machine. It is pre-configured to seamlessly accept a standard IEC P63 electric motor via a B5 mounting flange. The high-quality die-cast aluminum housing ensures excellent thermal heat dissipation while keeping the overall assembly extremely lightweight, minimizing structural strain on your robotic frames or mobile machinery.
Technical Specifications of the VF 44 F2 100 P63 B5
The VF 44 size utilizes a precision-machined, profile-ground steel worm shaft driving a centrifugally cast bronze worm wheel. This time-tested metallurgical pairing guarantees smooth sliding friction and exceptional longevity, even under the intense mechanical stress of a 100:1 ratio.
- Part Number: VF 44 F2 100 P63 B5
- Gearbox Series: VF (Ultra-Compact Aluminum Worm Gear)
- Frame Size: 44
- Output Configuration: F2 (Side-mounted output flange)
- Reduction Ratio (i): 100:1 (Ultra-high ratio for maximum torque)
- Motor Interface: IEC P63 frame
- Motor Flange Type: B5 (Large standard mounting flange)
Expert Tips: The Physics of a 100:1 Ratio and Static Irreversibility
When selecting a worm gear, understanding the mechanical properties of your chosen ratio is critical for machine safety and efficiency. Expert Tip: The 100:1 reduction ratio is extreme. Because the lead angle of the internal steel worm thread must be incredibly shallow to achieve this ratio, the gearbox falls into the category of absolute static irreversibility (self-locking). This means that when the electric motor is turned off, the friction angle is so steep that no amount of load on the output shaft can back-drive the motor. It acts as a highly effective, natural mechanical brake. However, this massive ratio also means the gearbox is mechanically inefficient. A large percentage of the electrical motor’s power is converted into sliding friction (radiant heat) rather than rotational output. Never oversize your electric motor without verifying the thermal capacity of the aluminum housing.
Installation Advice: F2 Flange and Fretting Corrosion
This specific model utilizes an F2 output flange, allowing the gearbox to be securely bolted to the side wall of your machinery. The VF 44 is a factory-sealed unit, pre-filled with high-performance synthetic gear oil. It is completely «lubricated for life,» meaning it lacks breather, drain, or fill plugs. This eliminates the need for periodic oil changes and allows for installation in almost any orientation. When mounting your IEC P63 motor into the B5 input flange, you must apply a premium anti-seize paste (such as Molybdenum Disulfide) to the solid motor shaft before inserting it into the gearbox input quill. Without this paste, microscopic vibrations will cause fretting corrosion, essentially cold-welding the motor to the gearbox and making future maintenance impossible.
Frequently Asked Questions (FAQs)
Q: Is the 100:1 ratio safe for lifting applications?
A: While a 100:1 ratio is statically self-locking and will hold a load under normal conditions, extreme shocks or vibrations can break the static friction. For critical lifting applications where safety is paramount, you must always install an external electromechanical brake on the AC motor.
Q: Will the aluminum casing get hot during continuous operation?
A: Yes, absolutely. Because the 100:1 ratio generates a significant amount of sliding friction, the aluminum casing is designed to run hot to the touch during continuous 24/7 duty cycles. This is a normal characteristic of high-ratio worm drives.
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