Product Overview
The FLENDER B3HH04 is a high-efficiency 3-stage helical gear unit engineered for industrial environments where mounting space is restricted but torque demand remains high. Unlike bulky traditional drive units, the B3HH04 features a streamlined, high-density housing that facilitates both horizontal and vertical installation. Designed for seamless integration into automated production lines, this compact powerhouse delivers a nominal torque of 7,500 Nm, ensuring smooth power transmission with minimal vibration and industry-leading thermal dissipation.
Product parameters
| Specification Item | Technical Detail | Unit / Standard |
| Product Model | FLENDER B3HH04 | Compact Series |
| Gear Type | 3-Stage Helical | Precision Ground |
| Nominal Torque | 7,500 | Nm |
| Rated Power Range | 4 – 45 | kW |
| Ratio Range ($i$) | 9 – 90 | Standard Ratios |
| Output Speed | 25 – 220 | RPM |
| Housing Material | High-Grade Cast Iron (GG25) | Vibration Damping |
| Protection Rating | IP55 (IP65 available) | IEC Standard |
| Mounting Position | Horizontal / Vertical | Universal Design |
High-Demand Industry Applications
The FLENDER B3HH04 is specifically calibrated for mid-to-heavy range industrial cycles, proving its reliability in:
- Logistics & Warehousing: High-speed belt conveyors and sorter drives.
- Packaging Machinery: Precision timing for automated capping and wrapping stations.
- Food & Beverage: Driving stainless steel mixers and bottling lines.
- General Manufacturing: Powering assembly line tracks and lifting auxiliary equipment.
- Textile Industry: Constant-speed drives for drying and winding machines.
Engineering Edge: Precision & TCO
Why "Compact" is a Competitive Advantage
In modern facility management, floor space is money. The FLENDER B3HH04 utilizes a highly optimized gear geometry that packs more power into a smaller casing. This not only simplifies the retrofit of older systems but also reduces the weight load on supporting structures.
Lowering Total Cost of Ownership (TCO)
Every component of the B3HH04-from the fatigue-resistant bearings to the high-wear-resistance tooth profiles-is selected to extend service intervals. By achieving a mechanical efficiency of over 95% per stage, this gearbox significantly reduces heat generation, effectively doubling the life of the internal lubricants and seals compared to entry-level alternatives.
FAQ
Q1: Can the SEW FLENDER B3HH04 handle fluctuating loads?
Yes. The helical gear design provides a high overlap ratio, which means more teeth are in mesh at any given time. This allows the unit to absorb shock loads and torque spikes much more effectively than standard spur gears.
Q2: What maintenance is required for long-term operation?
Under standard operating conditions, we recommend an initial oil change after 500 hours, followed by routine checks every 10,000 operating hours. For 24/7 high-speed operations, synthetic lubricants are recommended to maintain consistent film thickness.
Q3: Is the FLENDER B3HH04 compatible with global power standards?
Absolutely. The unit is designed to interface with standard IEC and NEMA motors via various adapter options, making it a "global-ready" solution for international equipment exports.
Q4: How does the IP65 optional upgrade benefit my facility?
The IP65 upgrade provides enhanced protection against low-pressure water jets and fine dust ingress. This is essential for wash-down environments in food processing or outdoor applications where environmental exposure is a factor.
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