Reducer

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

SHZ Series Gear Reducer

The SHZ Series Helical-Worm Gear Reducer / Gearmotor is a B14 flange-mounted gearbox with a right-angle structure, hollow output shaft, and shrink disk connection. Its helical-worm gear transmission provides speed reduction and power transfer, while the flange-mounted hollow shaft design makes it suitable for rotary tables, corner transfer units, adjustment and positioning equipment, press machinery, and stage drive systems.

Item	Value
Model	SHZ47–SHZ97
Ratio Range	6.8–288
Motor Power	0.12–22 kW
Output Torque	90–4,000 Nm
Mounting Type	B14 Flange-Mounted
Output Shaft	Hollow Shaft with Shrink Disk

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Product Description

Key Technical Features & Advantages

Helical-Worm Gear Transmission: The SHZ series uses a helical-worm gear arrangement for speed reduction and power transmission.
B14 Flange-Mounted Design: The B14 flange provides the mounting interface between the gear unit and machine structure.
Hollow Output Shaft: The hollow shaft provides a direct connection point for the machine-side driven shaft.
Shrink Disk Connection: The shrink disk secures the machine-side shaft within the hollow output shaft.
Right-Angle Drive Layout: The input and output shafts are arranged at 90° for equipment requiring a right-angle transmission path.
Model Range SHZ47–SHZ97: Six frame sizes are available, with housing and installation details varying by model.
Technical Drawing Support: Model-specific drawings provide the shaft, flange, motor, and overall installation dimensions required for equipment integration.

Product Design Configurations

SHZ Series: B14 flange-mounted helical-worm gear reducer with hollow output shaft and shrink disk
SHZ47 – SHZ97: Six model sizes for different installation and drive requirements
Gear Arrangement: Helical-worm gear transmission
Drive Layout: Right-angle transmission
Output Connection: Hollow shaft with shrink disk

Input & Output Configurations

Output Type: Hollow shaft
Output Connection: Machine-side shaft secured by shrink disk
Input Type: Motor-driven input according to the selected SHZ configuration
Motor Matching: Motor frame size and connection dimensions vary with the selected model

Mounting Styles & Options

Mounting Method: B14 flange-mounted
Output Shaft: Hollow output shaft
Shaft Connection: Shrink disk connection
Drive Arrangement: Right-angle transmission
Installation Options: Model-specific flange, shaft, motor, and mounting dimensions

Motor Options & Accessories

Motor frame configurations according to the selected SHZ model
B14 flange connection
Hollow shaft and shrink disk connection
Model-specific motor and mounting dimensions

Primary Industrial Applications

Rotary Tables and Turning Equipment
Corner Transfer Units
Adjustment and Positioning Equipment
Press Equipment
Stage and Theater 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.