Hot-Selling High Strength Worm Gear for Port Unloader and Stacker

Customization:	Available
Application:	Motor, Motorcycle, Machinery, Marine, Agricultural Machinery
Hardness:	Hardened Tooth Surface

Basic Info

Model NO. gear

Gear Position External Gear

Manufacturing Method Cast Gear

Material Alloy Steel

Type Circular Gear

Tooth Position External Gear

Tooth Profile Straight-Toothed, Helical, Double-Helical

Applicable Standard ISO/DIN

Heat Treatment Available

Technique Casting/Forging/Customized

Gear Precision Ordinary/ 8e/7e/6e

Service Customized OEM

Warranty 1 Year

Features Professional Production

Core Components Gear, Ring Gear

Machinery Test Report Provided

Transport Package Wooden Box

Specification custom

Hot-Selling High Strength Worm Gear for Port Unloader and Stacker

Product Description

I. Product Introduction

Large gears and girth gears are indispensable core transmission components in heavy machinery and equipment. Utilizing high-quality alloy steels (such as 42CrMo, 35CrMo, 40CrNiMo, etc.) as base materials—combined with advanced machining processes and heat treatment technologies—large gears and girth gears are manufactured characterized by high strength, superior wear resistance, and high transmission efficiency. These products are widely applied in equipment such as rotary kilns, ball mills, mixers, bucket-wheel excavators, large-scale cranes, marine propulsion systems, and wind turbine generator sets.

Key Product Features

✦ High Load-Bearing Capacity: Forged or cast from high-strength alloy steel blanks, the gear teeth undergo carburizing, quenching, or tempering treatments. This results in a hardness level reaching HB 280–360 or HRC 50–60, enabling the components to withstand high impact loads, heavy-duty operations, and prolonged continuous running.
✦ High Transmission Precision: Manufactured using large-scale CNC hobbing machines, gear shapers, and gear grinders, our products achieve a machining precision of ISO Grade 7–8 (or higher, subject to specific requirements). The gear tooth profiles feature optimized designs that ensure smooth meshing, low noise levels, and high transmission efficiency.
✦ Wear and Fatigue Resistance: The gear tooth surfaces undergo medium-frequency induction hardening or a carburizing-plus-grinding process to create a hardened layer (with an effective depth of 1.5–6 mm). This significantly enhances resistance to pitting, abrasion, and scuffing, thereby extending the product's service life.
✦ Flexible Structural Design: Available in various structural configurations—including full-circle girth gears, semi-circular girth gears, and split-type girth gears—our products support a wide range of tooth profiles, such as spur gears, helical gears, and herringbone gears. Connection dimensions—including flange hole patterns and locating features—can be fully customized according to client-provided drawings.

Application Fields

Industry Sector	Application Details
Mining & Cement Industries	Large girth gears and transmission gears for ball mills, rotary kilns, dryers, and coolers
Metallurgical Industry	Large gears for rolling mills, continuous casting machines, sintering machines, and blending/reclaiming machines
Heavy Machinery	Slewing mechanisms for large cranes, slewing rings for excavators, and drive gears for Tunnel Boring Machines (TBMs)
Marine & Port	Marine cranes (deck cranes), ship propulsion systems, port unloaders, and ring gears for stackers and reclaimers
Energy Sector	Yaw ring gears and pitch ring gears for wind turbines; gears for hydraulic turbine gate hoists
Construction Materials & Chemicals	Large-scale transmission gears for mixers, blenders, and granulators

Core Competitive Advantages

✔ Extended Service Life (30%+): Through optimized tooth profile modification technology, we effectively reduce meshing impact, minimize noise, and significantly extend operational lifespan.
✔ Rigorous, Comprehensive Inspection: Non-destructive Testing: 100% Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) to ensure zero internal defects. Coordinate Measuring Machine Inspection ensures real-time monitoring of critical dimensions to ensure zero-error fit-up clearance.
✔ Customized Solutions: Our engineering team provides a complete suite of optimization recommendations—ranging from material selection to tooth profile design—tailored to your specific load requirements and operating speeds.
✔ Rapid Delivery Capabilities: We possess an independent supply chain for large-scale castings and forgings, shortening raw material lead times and ensuring your projects go online on schedule.

Factory Profile

We are a professional manufacturer of slewing bearings and customized non-standard machining parts with ISO 9001 certification. We mainly produce slewing bearings with diameters of 50-10000mm, with bearing precision covering four grades of P0, P6, P5, and P4. Concurrently, we produce various customized non-standard machining parts, such as large gears, shafts, large ring gears, and couplings.

Products have been successfully exported to more than 50 countries, including South Africa, the United States, Germany, the United Kingdom, Italy, Turkey, Russia, Austria, Norway, Australia, Mexico, Malaysia, and the Middle East.

Production Capacity: Equipped with CNC vertical lathes, CNC quenching machines, CNC gear shapers, machining centers, grinding machines, large gear hobbing machines, and other advanced processing machinery.

Services Offered: Technical consultation, product design, manufacturing, installation guidance, old product mapping, and personalized non-standard customization.