Reducer

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

FHZ Series Gear Reducer

The FHZ Series Gear Reducer is a B14 flange-mounted parallel-shaft helical gear reducer with a hollow shaft and shrink disc connection. Available in FHZ37–FHZ157, it is suitable for conveyor systems, material transfer equipment, process machinery, presses, extruders, and production line conveying applications where a defined flange mounting position and direct machine-side shaft connection are required.

Item	Value
Model	FHZ37–FHZ157
Ratio Range	3.77–281.71
Input Power	0.12–200 kW
Output Torque	200–18,000 Nm
Mounting Type	B14 Flange-Mounted
Output Shaft	Hollow Shaft with Shrink Disc

Get In Touch WhatsApp

Product Description

Key Technical Features & Advantages

Parallel-Shaft Helical Gear Design: The FHZ Series uses a parallel-shaft helical gear arrangement for reduced-speed transmission from the motor to the machine-side output.
B14 Flange-Mounted Configuration: The B14 flange provides the mounting interface for installing the gear reducer at the required drive position on the machine.
Hollow Shaft Output: The hollow output shaft is designed for connection to the machine-side driven shaft, allowing the reducer to integrate with the equipment drive arrangement.
Shrink Disc Connection: The shrink disc secures the hollow shaft to the machine-side shaft. Shaft diameter and connection dimensions need to match the selected FHZ model.
Compact Parallel-Shaft Layout: The parallel-shaft arrangement supports machine layouts where the reducer and driven equipment require a defined installation position and limited space around the drive.
Multiple Frame Sizes: The FHZ Series covers FHZ37–FHZ157, with a similar basic external arrangement across the range and model-specific installation and overall dimensions.

Product Design Configurations

. Series: B14 flange-mounted parallel-shaft helical gear reducer
FHZ37–FHZ157: Available frame sizes shown in the technical drawing
Output Arrangement: Hollow shaft with shrink disc
Mounting Arrangement: B14 flange-mounted design

Input & Output Configurations

Output Type: Hollow shaft
Output Connection: Machine-side driven shaft with shrink disc connection
Input Side: Motor-mounted drive arrangement
Shaft Connection: Match the hollow shaft and machine-side shaft dimensions to the selected model

Mounting Styles & Options

Mounting Method: B14 flange-mounted
Main Connection: Hollow shaft with shrink disc
Installation Dimensions: Model-specific flange, shaft, mounting, motor, and overall dimensions
Technical Drawing: FHZ37–157 mounting dimensional description for installation planning

Motor Options & Accessories

Motor Configuration: Motor mounting arrangement matched to the selected FHZ model
Motor Dimensions: Confirm motor size and mounting dimensions during selection
Installation Space: Allow sufficient space for the motor, reducer, flange, hollow shaft, and machine-side shaft
Technical Drawing Reference: Use the model-specific drawing to confirm motor and overall installation dimensions

Primary Industrial Applications

Belt Conveyor Systems
Chain Conveyor Systems
Screw Conveyor Systems
Material Transfer Equipment
Process Machinery
Presses and Extruders
Production Line Conveying Sections
Feeding Systems

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.

01
02
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.

03
04
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.

05
06
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.

Get In Touch

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.