FF Series Helical Gearbox with Flange Mounted

The FF Series Helical Gearbox with Flange Mounted design is a parallel shaft helical gearmotor engineered for high efficiency and versatility in industrial applications. Featuring a modular design, low noise operation, and robust construction, this helical gear reducer is ideal for conveyors, materials processing, metallurgy, and chemical processing. Its flange mounted gearbox ensures easy installation and reliable performance in demanding environments like FF Series helical gearbox for screw conveyors.
FF Series Helical Gearbox Specifications:
| Product name: | FF series solid shaft helical gearbox |
| Model: | FF37/47/57/67/77/87/97/107/127/157 |
| Mounting ways: | Foot mounted, flange mounted or shaft mounted |
| Input ways: | Motor input, AM (IEC) flange input, and shaft input |
| Output way: | Solid shaft output, hollow shaft output, output with large flange, output with small flange |
| Efficiency: | 96% for basic two-stage, 94% for three-stage |
| Housing material: | HT250 high-strength cast iron |
| Gear material: | 20CrMnTi |
| Surface hardness of gears: | HRC58-62 |
| Input/Output shaft: | 40Cr steel |
| Heat treatment: | Carburizing and quenching |
| Bearing: | C&U or another brand |
| Oil seal: | NAK or another brand |
| Lubricating oil: | Gear oil |
| Packing: | Plywood case |
FF Series Helical Gearbox Parameter:

| Input power and permissible torque chart | ||||||||||
| Size | 37 | 47 | 57 | 67 | 77 | 87 | 97 | 107 | 127 | 157 |
| Structure | F FA FF FAF FAZ | |||||||||
| Input power (kW) |
0.18-3.0 | 0.18-3.0 | 0.18-5.5 | 0.18-5.5 | 0.37-11 | 0.75-22 | 1.1-30 | 2.2-45 | 7.5-90 | 11-200 |
| Ralio | 3.81-128.51 | 5.06-189.39 | 5.18-199.70 | 4.21-228.99 | 4.30-281.71 | 4.12-270.68 | 4.68-280.76 | 6.20-254.76 | 4.63-172.17 | 11.92-267.43 |
| Permissible torque(N.M) |
200 | 400 | 600 | 820 | 1500 | 3000 | 4300 | 7840 | 12000 | 18000 |
FF Series Single Stage Helical Gearbox Design:
The FF Series Helical Gearbox with Flange Mounted features a modular, parallel shaft design optimized for high efficiency and easy integration. The housing, made from high-strength HT250 cast iron, ensures durability and resistance to wear, ideal for flange mounted helical gearbox for materials processing. Gears are crafted from 20CrMnTi steel with a surface hardness of HRC58-62, utilizing advanced grinding and shape modification for low noise and high load capacity.
Equipped with premium bearings from SKF, C&U, and HRB and oil seals from SKF, NAK, and KSK, the gearbox ensures reliable sealing and minimal maintenance. The 40Cr steel shafts are precision-machined and rigorously tested for dynamic/static balance to guarantee smooth operation. Each unit is cleaned with diesel oil, painted, and pressurized to 2.5 kg to prevent oil leakage, with noise levels verified by a decibel meter. This makes the FF Series helical gearbox with cast iron housing perfect for demanding environments like screw conveyors and conveyors.
Key Features of FF Series Helical Gearbox with Hollow Shaft Output:
High Efficiency
The FF Series Helical Gearbox achieves up to 98% efficiency with its parallel shaft design, minimizing energy loss in conveyors and metallurgy. Its high efficiency flange mounted gearbox ensures optimal power transmission for FF Series helical gearbox for screw conveyors.
Low Noise Operation
Precision-engineered helical gears minimize noise, making the low-noise FF Series helical gear reducer ideal for pharmaceutical equipment and food processing. This ensures a quieter workplace in parallel shaft gear reducers for materials processing.
Robust and Modular Design
The compact FF Series helical gearbox for machinery features a modular, flange-mounted design for easy integration into systems like screw conveyors and lifting equipment. Its robust construction supports high loads in flange flange-mounted helical gearbox for the chemical industry.
FF Series Helical Gearbox Application:

- Conveyors: The FF Series Helical Gearbox powers conveyor systems with high torque and efficiency, ideal for FF Series helical gearbox for screw conveyors in materials handling.
- Materials Processing: Perfect for parallel shaft gear reducer for materials processing, this gearbox drives machinery in steel and metal processing with reliable performance.
- Metallurgy Industry: The flange-mounted helical gearbox for the metallurgy industry supports heavy-duty applications like rolling mills with high torque.
- Chemical Industry: The durable flange-mounted gearbox for the chemical industry withstands corrosive environments, ensuring reliability in processing equipment.
- Food and Beverage: The low-noise FF Series helical gear reducer is suited for food processing equipment, offering hygienic and efficient operation.
F Series Helical Gearbox Structure:
| Structure | Description |
| F…Y… : | Foot installation of inline helical gearbox with solid shaft |
| FA…Y… : | Flange mounted inline helical gearbox with hollow shaft |
| FAZ…Y… : | Short flange mounted parallel shaft helical gearbox with hollow shaft |
| FF…Y… : | Flange mounted parallel shaft helical gearbox with solid shaft |
| FAF…Y… : | Flange mounted parallel shaft helical gearbox with hollow shaft |
| F(FA, FF, FAF, FAZ)S… : | Shaft input parallel shaft helical gearbox |
| F(FA,FF,FAF, FAZ)…R…Y… : | Foot mounted combinatorial, shaft input helical gearbox with solid shaft |
| F(FA, FF, FAF, FAZ)S…R… : | Shaft input combinatorial parallel shaft helical gearbox |
| F(FA, FF, FAF, FAZ)…Y… : | Other motor or other drive connect with gearbox, flange required to be connected |

How to Use the FF Series Helical Gearbox?
Installation of Flange-Mounted Gearbox: Secure the FF Series Helical Gearbox using B5/B14 flange mounting points with high-strength bolts, ensuring precise alignment to minimize vibration. This is critical for flange-mounted helical gear reducer performance in conveyors or metallurgy.
Lubrication for Optimal Performance: Use 220# gear oil or manufacturer-recommended lubricants for oil-bath and splash lubrication. Check oil levels monthly to maintain efficiency in flange flange-mounted helical gearbox for the chemical industry.
Operation and Monitoring: Connect the FF Series Gear Reducer to a motor (e.g., AC, inverter, or servo motor) and verify that the transmission ratio suits your application. Start gradually and monitor for noise or vibrations, essential for high-efficiency flange-mounted gearboxes in materials processing.
Maintenance for Longevity: Inspect gears, bearings, and seals every 6–12 months, replacing lubricant as needed to ensure the durable flange-mounted gearbox for the chemical industry remains reliable.
Safety Considerations: Install safety guards around the FF Series Helical Speed Reducer to protect operators. Conduct regular safety checks to comply with standards, especially for parallel shaft gear reducers for materials processing.
About Us:
As a leading supplier of helical gearboxes, we specialize in delivering innovative and reliable solutions for industrial applications worldwide. Our flagship FF Series Helical Gearbox with Flange Mounted offers superior performance, featuring high efficiency flange mounted gearbox capabilities, low noise FF Series helical gear reducer technology, and a compact FF Series helical gearbox for machinery. With expertise in conveyors, materials processing, metallurgy, chemical processing, and food and beverage industries, we provide tailored parallel shaft helical gear reducers that enhance efficiency and durability.
Our FF Series helical gearbox with cast iron housing ensures robust performance in harsh conditions, ideal for flange mounted helical gearbox for screw conveyors and parallel shaft gear reducer for materials processing. Committed to innovation, we offer FF Series Helical Gearbox Price and Specifications with comprehensive support and customized solutions. Choose us for durable flange-mounted gearboxes that drive operational excellence.


Gear Reducers
World class gear manufacturing capabilities, quality material suppliers, and a state of the art quality process allows EPT to offer the highest level of precision, durability and endurance. The EPT Planetary Reducers are designed and built for advanced high speed low backlash applications. The EPT manufacturing processes allows us to offer exceptional shock load capacities and various mounting options.
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
FAQ
Q: Are you trading company or manufacturer ?
A: Our group consists in 3 factories and 2 abroad sales corporations.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.
Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.
