ZhongYi Gear Manufacturer (a member of ZhongYi Machinery)
Designed for articulated robot joints, automated guided vehicles (AGVs), autonomous mobile robots (AMRs), CNC gantry systems, and semiconductor handling equipment. ZhongYi delivers ground fine-pitch gears with backlash under 3 arcminutes and DIN 5 / AGMA 12 precision grades.
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:
Multi-axis robotic arms and semiconductor positioning stages require micro-level pitch accuracy and minimal transmission error to maintain repeatable tool center positioning (TCP) under high dynamic speeds.
Robotic joint drives and AGV steering gearheads must maintain low backlash (<3–5 arcmin) to eliminate position overshoot, reversing lag, and hunting during rapid acceleration and deceleration cycles.
Modern robotics and mobile logistics robots demand compact, lightweight gear designs with maximum torque density to minimize inertia and reduce motor power consumption.
Automated warehouse fleets and production lines operate continuously. Gears require micro-finished tooth surfaces (Ra ≤ 0.4 µm) to suppress vibration, lower thermal buildup, and eliminate premature wear.
< 1 to 3 arcmin Available
Custom paired gear sets and precision planetary arrangements engineered for minimal backlash and high torsional stiffness.
DIN 4 - DIN 6 / AGMA 12-14
Gleason and Reishauer CNC tooth grinding achieving cumulative pitch error Fp ≤ 0.006 mm and Ra ≤ 0.4 µm surface finish.
M0.3 to M6.0 (DP 80 to DP 4)
High-precision micro and fine-pitch hobbing, shaping, and grinding for compact servo actuators and AGV wheel hubs.
Gas Nitriding & Precision Carburizing
42CrMo, SCM440, 20CrMnTi, and 7075-T6 aluminum with controlled nitriding for low thermal distortion and high tooth hardness.
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.
Sub-arcminute accuracy ground spur and helical gears for servo speed reducers, robotic joints, and optical positioning drives.
Continuous high-speed, low-noise linear positioning racks for Cartesian robots, 7th axis gantry robots, and laser cutters.
High concentricity internal ring gears for AGV/AMR wheel hub integrated reducers and compact robotic joint actuators.
Zero-backlash splined motor shafts and mating hubs for servo motor drive couplings and dynamic steering linkages.
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.
Coordinate Measuring System
Measures micro-positioning tolerances, pitch runout, gear bore concentricity, and GD&T geometric features.
Precision Gear Roll Analyzer
Measures total radial composite error (Fi”) and tooth-to-tooth composite error (fi”) for true meshing backlash validation.
Surface Roughness Analyzer
Certifies tooth flank surface micro-finish down to Ra 0.2–0.4 µm to guarantee low-vibration operation.
High-Resolution Optical Encoder
Inspects rack straightness, pitch spacing over full 1,000 mm lengths, and dynamic transmission error.
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.
Leading European Automated Guided Vehicle (AGV) & Warehouse Robotics Manufacturer (Company B)
< 2.8 arcmin Backlash
Validated in 24/7 Continuous AGV Operations
The client needed a compact integrated planetary wheel drive hub capable of 24/7 continuous warehouse operation with backlash below 3.0 arcminutes and operating noise under 60 dB(A) under 1,500 kg payload.
ZhongYi engineered a custom planetary gear set utilizing 42CrMo ground helical gears with optimized 3D crowning (lead and involute modification) and gas nitriding (580–640 HV surface). Gear pitch runout was held within 0.005 mm with calibrated needle roller bearings.
Achieved verified backlash of 2.6 arcminutes across all production batches
Reduced running drive noise to 56.5 dB(A) under full torque load
Sustained >18,000 hours of continuous operation with zero reported drive failures
Lowered unit manufacturing cost by 22% compared to the previous German domestic supplier
Technical FAQ
Clear answers to common engineering, metallurgical, tolerance, and procurement questions for international OEM machinery buyers.
We can achieve backlash levels under 3 arcminutes for custom-ground planetary sets and matched gear pairs. For ultra-precision applications, we offer custom tooth profile shaving and grinding paired with anti-backlash spring-loaded or dual-pinion configurations achieving sub-1 arcminute motion.
Yes. We manufacture DIN 6 and DIN 7 ground helical gear racks in 0.5 m, 1.0 m, and custom lengths with hardened teeth (50–55 HRC) and precision machined continuous mounting ends for seamless end-to-end joining.
We apply tip relief (involute modification) and longitudinal end relief / crowning (lead modification) using CNC Reishauer gear grinders. This eliminates tooth tip contact shock during entry and exit, significantly reducing high-frequency mesh noise.
Yes. We support engineering R&D with prototype batches from 1 to 20 sets with fast turnaround (15–20 days) including full CMM and gear rolling inspection reports, followed by seamless transition to high-volume serial production.
High-torque, impact-resistant gears, girth rings, and planetary drive sets engineered for excavators, cranes, drilling rigs, and heavy mining crushers.
High-torque bevel gears, spur gears, and splined drive shafts for tractors, harvesters, rotary tillers, and agricultural PTO gearboxes.
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 Automation & Robotics Precision Gears. Our senior gear engineers provide detailed manufacturability feedback, material optimization, and factory-direct pricing.
