Reducer

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

F..R.. Series Gear Reducer

The F..R.. Series Gear Reducer combines F Series parallel-shaft helical gearing with R Series helical gearing in one drive assembly, providing multi-stage speed reduction in a compact transmission layout. It is suitable for conveyor systems, chain conveyors, screw conveyors, process and production equipment, presses, extruders, and gantry crane drives.

Item	Value
Model	F..37R17 – F..157R97
Ratio Range	3.77–281.71
Motor Power	0.12–200 kW
Output Torque	200–18,000 Nm
Mounting Type	Model-specific
Output Shaft	Model-specific

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Product Description

Key Technical Features & Advantages

Combined F and R Gear Unit Structure: The F..R.. type combines F Series and R Series gear units into one drive assembly for multi-stage speed reduction.
Parallel-Shaft and Helical Gear Arrangement: The F..R.. configuration combines the parallel-shaft helical gearing of the F Series with the helical gearing of the R Series.
Compact Combined Drive Arrangement: The combined gear unit provides a compact transmission layout where installation space and machine arrangement are important.
Multi-Stage Speed Reduction: The combined F and R gear units provide multiple gear stages for reducing motor speed to the required machine-side output speed.
Multiple Model Sizes: The F..R.. range covers different gear unit sizes and motor combinations to suit different equipment configurations.
Flexible Motor Matching: The technical drawing shows different motor frame combinations for each F..R.. model, allowing the drive to be configured according to motor requirements.
Technical Drawing Support: Mounting drawings provide motor dimensions, overall dimensions, mounting dimensions, and shaft-related information for installation planning.

Product Design Configurations

F..R.. Series: Combined F Series and R Series gear unit configuration
37R17 – F.157R97: Multiple gear unit sizes and combinations
Gear Arrangement: Parallel-shaft helical and helical gear transmission
Drive Arrangement: Combined multi-stage gear reduction
Model Variations: Different gear unit sizes, motor frame combinations, and overall dimensions

Input & Output Configurations

Input Type:
- Electric motor connection
- Standard motor frame combinations shown in the technical drawing
- Special motor connection with required flange arrangement
Output Type: Machine-side output connection according to the selected F..R.. model
Drive Connection: Gear reducer connected between the motor and driven equipment

Mounting Styles & Options

Mounting Method: Installation according to the selected F..R.. model and equipment structure
Motor Connection: Motor frame sizes from 63 to 200 are shown across the available model combinations
Output Connection: Machine-side shaft position and connection dimensions depend on the selected model
Installation Dimensions: Overall length, gear unit dimensions, motor dimensions, and mounting dimensions should be taken from the corresponding technical drawing

Motor Options & Accessories

Different motor frame sizes according to model
Motor connection flange for user-supplied or special motors
Standard motor mounting arrangements
Gear unit mounting accessories according to equipment configuration

Primary Industrial Applications

Conveyor Systems
Chain Conveyors
Screw Conveyor Equipment
Process Equipment
Production Machinery
Presses
Extruders
Gantry Crane Drive Equipment
Material Handling Systems
General Industrial Drive Equipment

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.