Reducer

Focusing on the design, manufacturing processes, heat treatment techniques, and key quality control points for all types of standard and non-standard gears.

FF Series Gear Reducer

The FF Series gear reducer features B5 flange mounting and solid output shaft for connecting industrial equipment and transmission parts such as couplings, sprockets and pulleys. Its inline helical gears deliver reliable speed reduction and torque transfer. Multiple motor and frame sizes are offered to match power, ratio and installation needs. Ideal for conveyors, packaging machinery, material handling and automated production.

Item	Value
Model	FF37–FF157
Ratio Range	3.77–281.71
Motor Power	0.12–200 kW
Output Torque	Up to 20,000 Nm
Mounting Type	B5 Flange Mounted
Output Shaft	Solid Shaft

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Product Description

Key Technical Features & Advantages

High Transmission Efficiency: Precision-ground hardened helical gears deliver high transmission efficiency, minimizing energy consumption and operational heat build-up.
High Power Density & Rigid Construction: The housing is cast from high-grade gray cast iron optimized by finite element analysis, delivering high structural rigidity to withstand heavy shock loads and continuous torque output.
B5 Flange Mounted Layout: The FF type features B5 flange-mounted structure with solid output shaft, enabling direct assembly onto matched industrial machinery and transmission assemblies.
Low Vibration & Quiet Running: Precision case-carburizing, quenching, and CNC tooth profile grinding ensure high gear accuracy, resulting in smooth, silent power transmission.
Modular Dimensional Interchangeability: Frame dimensions and mounting interfaces adhere strictly to international modular standards, providing seamless drop-in replacement for mainstream European brands.

Product Design Configurations

FF..Series: B5 flange-mounted helical gear reducer with solid output shaft (Frame sizes FF37–FF157)

Input & Output Configurations

Output Type: Solid output shaft
Input Types:

Direct-coupled integrated electric motor

Standard IEC motor adapter

Custom connection flange for user-supplied special motors

Mounting Styles & Options

Mounting Methods: B5 Flange-mounted
Main Options: Custom connecting flanges for non-standard motors

Motor Options & Accessories

PTC thermistors and thermostat sensors (Thermal overload protection)
Forced cooling auxiliary fans (Independent cooling)
Mechanical holding/safety brakes
Optical/magnetic encoders (Incremental Sin/Cos, single-turn absolute, multi-turn absolute)
Anti-condensation space heaters
Mechanical backstops (Holdbacks for non-reversing drives)

Primary Industrial Applications

Conveyor Systems
Packaging Machinery
Material Handling Equipment
Automated Production Lines
General Processing Machinery

Our Core Strengths

Standardized Production Process Flow

Raw Material Forging & Normalizing
Premium alloy steel (20CrMnTi / 40Cr) forgings undergo strict normalizing and ultrasonic flaw detection to eliminate internal stress, optimize grain structure, and ensure superior core impact resistance.

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Precision CNC Machining & Gear Hobbing
Multi-axis CNC lathes complete high-precision turning of reference datums and end faces. High-speed CNC gear hobbing and shaping machines precisely form the initial tooth profile with strict geometric allowances.
Controlled Carburizing & Heat Treatment
Processed in multi-purpose atmosphere-controlled furnace lines. Surface carburizing and quenching achieve a wear-resistant surface hardness of HRC 58–62, while preserving tough, shock-absorbing cores.

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High-Precision CNC Gear Grinding
Advanced CNC profile gear grinding machines eliminate heat-treatment micro-distortions. Tooth flanks are precisely modified with crowning to achieve DIN Class 5–6 accuracy, ensuring whisper-quiet running.
Housing Machining & Clean Modular Assembly
Gearbox housings are machined on CNC horizontal machining centers for micron-level bore concentricity. Assembled in a clean workshop with top-tier bearings (SKF/NSK/C&U) and dual-lip oil seals to guarantee zero oil leakage.

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100% Comprehensive Testing & Export Packaging
Every unit undergoes 100% full inspection: gear measurement center (CMM), dynamic running test (vibration, noise, temperature rise) and sealing test before multi-layer anti-rust film and solid plywood case packaging.

Core Advantage

Ultra-Silent Transmission

High-precision gear grinding delivers tooth surface roughness as low as Ra 0.4, with tight meshing, low vibration and noise for smoother equipment operation.

Extended Service Life

Premium materials matched with precise heat treatment ensure wear-resistant tooth surfaces and impact-resistant core, cutting maintenance and replacement costs.

All-Condition Adaptation

Custom solutions for high-speed heavy load, corrosion resistance and food-grade scenarios, eliminating trial-and-error costs in product selection.

Cost-Effective & Reliable Delivery

Scaled production supports tiered pricing for bulk orders with consistent quality; full-process control guarantees stable lead time and complete after-sales support.

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Logistics and After-Sales Service

Global Logistics & Export Packaging

VCI Anti-Rust & Solid Plywood Packaging

Internal VCI vacuum anti-rust packaging combined with seaworthy, non-fumigation plywood crates to guarantee zero corrosion during long ocean transit.

Flexible Multi-Modal Shipping

Supporting Sea Freight, Air Cargo, and Railway Express (FOB, CIF, DDP/DDU) with real-time tracking for punctual delivery.

Complete Export Documentation

Full clearance support including Certificate of Origin (CO/Form E), CE certificates, and factory dynamic test reports.

After-Sales Service & Technical Warranty

12-Month Full Quality Warranty

100% free replacement or repair for any manufacturing-related defects under standard operating conditions within 12 months.

24/7 Rapid Engineering Support

Professional technical team provides 2-hour response for model selection, installation guidance, and troubleshooting.

Lifetime Spare Parts Availability

Sufficient inventory of standardized modular parts (gears, shafts, seals, bearings) ensuring rapid worldwide dispatch.

Frequently Asked Questions (FAQ)

Can your gearboxes directly replace international brands like SEW, Flender, or Bonfiglioli?

Yes. Our modular gearboxes (R, F, K, S series and planetary units) are designed to standard international mounting dimensions. They can achieve 1:1 direct interchangeability in mounting hole positions, shaft diameters, input flanges, and gear ratios without modifying your existing machinery.

What technical parameters do I need to provide to select the right gearbox?

To help our engineering team calculate the ideal model, please provide: input motor power (kW/HP), input/output speed (RPM) or gear ratio, required output torque (Nm), mounting position (horizontal/vertical), and the specific application or working environment.

What is the typical lead time for standard and customized gearboxes?

For standard modular models (R/F/K/S series and cycloidal gearboxes), lead time is typically 7–15 days. For customized units with special ratios, shafts, or special flanges, lead time is usually 20–30 days. Emergency spare parts are dispatched within 48 hours.

How do you guarantee zero oil leakage and transmission durability?

All gearboxes utilize precision-machined CNC housings for micro-level bore concentricity, premium dual-lip skeleton oil seals, and top-tier bearings (SKF/NSK/C&U). Every unit undergoes a 100% dynamic running test (vibration, noise, temperature rise) and sealing test before export packing.

What is your MOQ, warranty policy, and do you supply test reports?

Our MOQ is 1 unit (sample order supported). All products come with a 12-month comprehensive warranty. Each shipment can be provided with full documentation, including dynamic test records, material certificates, CMM gear inspection reports, and CE/ISO compliance certificates.