ZhongYi Gear Manufacturer (a member of ZhongYi Machinery)
Manufactured for tractors, combine harvesters, rotary tillers, balers, grain augers, and fertilizer spreaders. ZhongYi supplies case-hardened spiral bevel gears, spur gears, and PTO transmission shafts designed to resist mud, fertilizer chemicals, severe vibration, and sudden soil shock loads.
Customization
100% to Drawing
Precision Standard
DIN 4-7 / AGMA 11-13
Fast Quote Turnaround
< 24 Hours DFM
Quality Certified
ISO 9001:2015
Engineering & Manufacturing Capability
We bridge the gap between engineering blueprints and reliable transmission performance. Whether you need prototype development, replacement parts, or volume OEM manufacturing, our technical team provides complete DFM optimization and precision machining.
How ZhongYi addresses the root causes of premature gear failure, excessive backlash, and operational wear in the field:
Planting and harvesting windows last only a few weeks. A single gear failure during harvest causes massive economic loss. Agricultural gears require uncompromising metallurgical integrity and fatigue durability.
Rotary tillers and cutter bars encounter hidden rocks, tree roots, and dense soil compaction. Gears must absorb extreme instantaneous shock torque without tooth root fracture.
Direct contact with damp soil, livestock manure, liquid fertilizers, and frequent pressure washing causes rust and seal degradation. Gears require corrosion-resistant surface coatings and durable tooth metallurgy.
Agricultural equipment manufacturers require highly competitive piece pricing for high-volume serial production without compromising gear tooth strength or dimensional consistency.
Gleason & Klingelnberg
Specialized CNC spiral bevel and straight bevel cutting, lapping, and tooth contact pattern optimization for 90° agricultural gearboxes.
M2.0 to M16.0 (DP 12 to DP 1.5)
High-throughput production of transmission gears, differential bevel sets, and splined drive shafts for farm machinery.
Carburized 58-62 HRC / Induction
Controlled atmosphere carburizing and press quenching minimizing distortion on large bevel gears.
Black Oxide / Phosphating / Dacromet
Protective surface coatings providing over 48–96 hours of salt spray corrosion resistance for field durability.
Upload any standard 2D blueprint or 3D CAD model. Our gear engineering team provides a detailed DFM report within 24 hours.
Core Industry Products
We produce high-reliability, custom-machined gears specifically engineered to match your torque, speed, mounting envelope, and environmental durability requirements.
Heavy-torque 90-degree right-angle transmission gear sets for rotary tillers, mowers, feed mixers, and post-hole diggers.
Durable differential side gears, pinion spiders, and drive bevel pairs for farm tractors and harvesting equipment.
Robust transmission gears for combine harvester thrashers, grain elevators, balers, and seed drill drives.
High-torsion PTO drive shafts, intermediate transmission shafts, and splined hubs for tractor implement coupling.
Looking for a specialized tooth profile or custom gear pairing? We manufacture non-standard module sizes, modified pressure angles (14.5°, 20°, 25°), and custom backlash specifications according to your exact CAD models.
Quality Control & Inspection Matrix
Overseas machinery buyers cannot afford supplier quality defects. At ZhongYi, every gear batch passes rigorous metallurgical, dimensional, and tooth profile testing using world-class metrology instruments before dispatch.
Gleason No. 511 Gear Tester
Validates tooth contact pattern (bluing test), backlash, and mounting distance under calibrated running load.
NSS Salt Spray Testing Unit
Evaluates phosphating, black oxide, and Dacromet coating corrosion resistance against fertilizer and moisture exposure.
Digital Hardness & Metallurgical Microscope
Verifies 58–62 HRC surface hardness and uniform effective carburized depth on tooth roots and flanks.
Electromagnetic Yoke & Bench Tester
100% inspection for surface or near-surface quenching micro-cracks on highly stressed bevel gear teeth.
Zero-Risk Guarantee: 100% replacement or refund warranty against manufacturing defects.
Proven Real-World OEM Success
See how our metallurgical expertise, gear geometry optimization, and precision CNC grinding solve high-stakes transmission challenges for global machinery manufacturers.
Major Agricultural Machinery Manufacturer (Company C)
+42% Impact Strength
Zero Field Failures Across 3 Harvest Seasons
The customer suffered recurrent tooth breakage on cutter-bar spiral bevel gears when harvesters struck hidden stones in dry clay soil, causing costly field breakdowns during harvest seasons.
ZhongYi re-engineered the tooth root geometry with enlarged fillet radii using Gleason spiral bevel cutting, upgraded the raw material to high-cleanliness 20CrMnTi forgings, and implemented precise carburizing (case depth 1.3–1.5 mm, 59–62 HRC) followed by matched lapping and protective black oxide phosphating.
Increased tooth root shear impact strength by 42% in mechanical drop-weight tests
Zero reported field gear fractures across three consecutive harvest seasons (over 8,000 gearboxes deployed)
Achieved uniform tooth contact pattern (>65% central contact) eliminating edge stress concentration
Reduced unit manufacturing cost by 15% through optimized batch production tooling
Technical FAQ
Clear answers to common engineering, metallurgical, tolerance, and procurement questions for international OEM machinery buyers.
We manufacture both Gleason and Klingelnberg tooth geometry spiral bevel gears with reduction ratios from 1:1 (miter) up to 1:6, with modules from M2.5 to M10 and ring gear diameters up to 500 mm. All sets are delivered as matched, lapped pairs.
Yes. If original CAD drawings are unavailable, you can send worn or broken sample gears to our engineering lab. We perform CMM tooth coordinate mapping, optical metallurgy analysis, and hardness testing to produce exact-fit replacement parts or improved OEM upgrades.
We provide heavy manganese phosphating, black oxide finishing, and Dacromet zinc-flake coatings providing up to 96 hours of salt spray corrosion resistance. Internal gearbox gears are coated with high-grade VCI anti-rust oil.
Every bevel gear set is dynamically rolled on our Gleason testing machines to calibrate mounting distance (MD) and verify central tooth contact patterns (bluing test). The exact mounting distances and backlash specs are laser-marked directly on each matched gear pair.
High-torque, impact-resistant gears, girth rings, and planetary drive sets engineered for excavators, cranes, drilling rigs, and heavy mining crushers.
Low-backlash, ultra-precise fine-pitch gears, ground helical racks, and planetary gearheads for robotics, AGV wheel drives, and high-speed motion axes.
Ultra-quiet, contamination-free micro gears in medical-grade POM, PEEK, and stainless steel for surgical robotics, infusion pumps, and clinical lab equipment.
Heavy-torque yaw/pitch gears, slewing ring drives, and precision worm drives engineered for 20-year service life in wind turbines and solar tracking fields.
Send your 2D blueprints or 3D CAD files for Agriculture & Farm Equipment Gears. Our senior gear engineers provide detailed manufacturability feedback, material optimization, and factory-direct pricing.
