Secure now: Bonfiglioli MVF 49/14 I P71 Worm Gear Reducer
Atlantechdrives provides you the MVF 49/14 I P71, a highly versatile worm gearbox that combines compact dimensions with high reduction capacity. The MVF series (Metric Worm Fleet) is one of Bonfiglioli’s most popular product lines, offering a perfect balance between cost-effectiveness and durability for low-to-medium torque applications.
- Size: 49
- Input Flange: P71 (IEC 71 Compatibility)
- Input Shaft Diameter: 14mm
- Mounting: I (Universal/Standard)
- Worm Wheel Material: High-performance Bronze alloy
- Worm Shaft: Hardened and ground steel
Engineering Efficiency of the MVF 49 Series
The Bonfiglioli MVF 49/14 I P71 operates on the sliding contact principle between a steel worm and a bronze wheel. This design is inherently quiet and provides a high degree of shock absorption, making it ideal for automation tasks with frequent load variations. The P71 input flange allows for direct mounting of standard IEC 71 frame motors, such as the BN63B4 (with appropriate adapters), creating a streamlined drive package. One of the standout features of the size 49 unit is its «Self-Locking» capability at high ratios, which can provide a degree of static holding force in vertical applications. The housing is made of die-cast aluminum, providing excellent protection against corrosion and efficient heat dissipation through its external ribbing. The internal components are precisely aligned during factory assembly to ensure minimum backlash and maximum torque transmission efficiency over years of service.
Expert Tips: Service Factor and Sizing
When selecting the MVF 49/14 I P71, always calculate your required Service Factor (fs). Worm gears are sensitive to heat buildup; for applications with frequent starts/stops or high shock loads, ensure your service factor is at least 1.5. A common mistake is undersizing the unit based on nominal torque alone, which leads to premature wear of the bronze wheel. For optimal performance, ensure the input speed does not exceed 1400 RPM for long durations, as the friction-based transmission can significantly increase oil temperature and degrade the lubricant’s viscosity. Always check that the input flange matches your motor frame exactly to prevent bearing stress.
FAQs
Q: What type of oil should I use in the MVF 49?
A: These units are typically supplied with a synthetic oil (ISO VG 320) which is suitable for all mounting positions and does not require periodic changes under standard industrial conditions.
Q: Can I replace the input flange to a larger size?
A: The P71 flange is part of the modular design. While it can be changed, it is best to order the specific configuration to ensure perfect factory alignment and sealing.
Q: Is this gearbox suitable for washdown environments?
A: Yes, with the standard aluminum housing it is robust, but for direct washdown we recommend the specialized food-grade versions or protective paint coatings.
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