Reducer

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

SHF Series Gear Reducer

The SHF Series Gear Reducer is an S Series helical-worm gear reducer with a B5 flange-mounted design, hollow shaft, and shrink disk connection. With a right-angle transmission layout, it can be used in conveyor systems, material transfer equipment, rotary equipment, adjustment drives, positioning equipment, and press or process machinery.

Item	Value
Model	SHF47–SHF97
Ratio Range	6.8–288
Motor Power	0.12–22 kW
Output Torque	90–4,000 Nm
Mounting Type	B5 Flange-Mounted
Output Shaft	Hollow Shaft with Shrink Disk

Get In Touch WhatsApp

Product Description

Key Technical Features & Advantages

Helical-Worm Gear Transmission: The SHF Series uses a helical-worm gear arrangement for speed reduction and mechanical power transmission between the motor and driven equipment.
B5 Flange-Mounted Design: The SHF configuration uses a B5 flange-mounted structure, providing a defined mounting interface between the gear reducer and the machine structure.
Hollow Shaft Output: The hollow shaftprovides a direct mechanical interface with the machine-side driven shaft, allowing the reducer to be integrated with equipment using a corresponding shaft arrangement.
Shrink Disk Connection: The hollow shaft is combined with a shrink disk connectionfor securing the reducer to the driven shaft. Shaft and connection dimensions should match the selected SHF model.
Consistent SHF47–SHF97 Structure: The SHF47, SHF57, SHF67, SHF77, SHF87, and SHF97 models use the same basic external configuration, while mounting and overall dimensions vary with frame size.
Model-Specific Mounting Dimensions: The SHF47–SHF97 dimensional drawings provide the mounting, flange, shaft, motor, and overall dimensions required for equipment integration and model selection.

Product Design Configurations

SHF.. Series: B5 flange-mounted helical-worm gear reducer with hollow shaft and shrink disk
SHF47 – SHF97: Multiple frame sizes for different equipment and installation requirements
Gear Arrangement: Helical gear and worm gear transmission
Drive Layout: Right-angle transmission
Output Connection: Hollow shaft with shrink disk connection

Input & Output Configurations

Output Type: Hollow shaft
Output Connection: Shrink disk connection to the machine-side driven shaft
Input Arrangement: Motor-driven input integrated with the SHF helical-worm gear reducer
Machine-Side Interface: Hollow shaft and shrink disk dimensions vary according to the selected SHF model

Mounting Styles & Options

Mounting Method: B5 flange-mounted
Output Arrangement: Hollow shaft
Connection Method: Shrink disk
Dimensional Options: Model-specific flange, shaft, mounting, and overall dimensions
Installation Reference: SHF47–97 mounting dimensional drawings should be used to match the reducer with the equipment structure and available installation space.

Motor Options & Accessories

For the SHF47–SHF97 configuration shown in the dimensional drawings, the motor-related installation dimensions include:

Motor mounting dimensions
Motor frame-related dimensions
Overall motor and gear reducer dimensions
Input-side installation dimensions

The selected motor and SHF configuration should be checked against the corresponding dimensional drawing before ordering.

Primary Industrial Applications

Conveyor Systems
Material Transfer Equipment
Rotary Equipment
Corner Transfer Units
Adjustment Drives
Positioning Equipment
Press Equipment
Process & Production 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.

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.