42CrMo Wear Impact Resistance Long Life 180 Polishing Machine Gear In China
180 polishing machine gears are core transmission components for 180mm-diameter vertical/plain polishing machines, including sun gear, planet gear, internal ring gear, spindle spur/helical gear, timing gear, compatible with YCP180, HY-180, YH2M8180, etc. Made of 20CrMnTi/40Cr/42CrMo with carburizing/induction hardening + precision grinding, they feature high torque, impact resistance, wear resistance, low noise, high parallelism and long service life. They transmit power for polishing disc rotation, workpiece revolution/rotation, pressure adjustment, variable frequency speed control, directly determining flatness, roughness Ra≤0.08μm, polishing uniformity, yield ≥98.5%. They are the “transmission heart” for precision polishing of optical glass, sapphire, ceramics, semiconductors and metal parts.
Product Features
- High torque & heavy duty: Module 1.5–3.0mm, thickened tooth root, withstand 50–200N·m torque, compatible with 11kW main motor.
- Precise transmission & flatness: ISO Grade 6 accuracy, tooth surface Ra≤0.4μm, parallelism ≤0.008mm, uniform workpiece polishing.
- Wear & impact resistance, long life: HRC 56–62 tooth surface, case depth 0.8–1.5mm, service life ≥8000 hours, adapt to slurry/dust environment.
- Low noise & smooth operation: Helical/planetary meshing, clearance 0.08–0.12mm, noise ≤68dB, no vibration at high speed.
- VFD compatible & stable speed: Adapt to 0–3000rpm variable frequency, smooth forward/reverse, no skipping/jamming.
- Planetary structure & accurate ratio: Sun+planet+ring gear set, ratio 3:1–10:1, precise revolution/rotation synchronization.
- Dust/corrosion/oil resistance: Blackening + anti-rust oil/nickel plating, adapt to water-based slurry, dust, humidity.
- Wide interchangeability & easy maintenance: Fit mainstream 180 models, direct replacement, no redesign, common inventory.
Technical Parameter Table
| Gear Types |
Sun Gear, Planet Gear, Ring Gear, Spindle Gear (Spur/Helical), Synchronous Gear |
| Common Modules |
1.5 / 2.0 / 2.5 / 3.0 mm |
| Tooth Count Range |
Sun Gear 18–30, Planet Gear 30–50, Ring Gear 80–120 |
| Transmission Ratio |
3:1 / 4:1 / 5:1 / 7:1 / 10:1 (Planetary) |
| Pressure Angle |
20° (Standard) |
| Primary Materials |
20CrMnTi (Carburized), 40Cr (High-Frequency Hardened), 42CrMo (Heavy-Duty) |
| Tooth Surface Hardness |
HRC 56–62 |
| Rated Speed |
Spindle ≤ 3000 rpm, Polishing Disc ≤ 120 rpm
Rated Torque: 50–200 N·m (Depending on Ratio) |
| Transmission Efficiency |
≥ 93% (Lubricated) |
| Surface Roughness |
Ra ≤ 0.4 μm (Tooth Surface) |
Working Principle
- Power input: Motor drives spindle/sun gear to transmit high-speed, low-torque power.
- Planetary reduction & torque boost: Sun gear drives planet gears to revolve and rotate around ring gear, reduce speed 3–10 times, amplify torque, driving polishing disc at low speed and high torque.
- Workpiece revolution + rotation: Planet gears drive workpiece carriers for revolution (with planet carrier) + rotation (meshing), uniform polishing on all surfaces.
- Fixed-axis synchronous drive: Spindle helical gears drive upper/lower shafts/pressure mechanisms, synchronously control disc pressure and speed to ensure flatness.
- VFD speed control & forward/reverse: Gears adapt to VFD motors for smooth speed adjustment and bi-directional operation, suitable for rough/finish/ultra-fine polishing.
- Precise meshing & positioning: Precision grinding + pair lapping, central contact zone, uniform backlash, low vibration and high flatness.
Main Applications
- Optical component polishing: 180mm spherical/aspherical lenses, prisms, sapphire windows.
- Semiconductor/hard brittle materials: Silicon wafers, SiC, ceramic substrates, glass cover plates.
- Metal mirror polishing: Stainless steel, aluminum, copper deburring and mirror finish.
- Flat polishing machine transmission: Planetary/spindle gear sets for YCP180, HY-180, YH2M8180, etc.
- Planet wheel/carrier drive: Workpiece revolution/rotation mechanisms for double-sided polishers, ensuring uniformity.
- VFD speed control system: Adapt to 0–3000rpm VFD motors, rough/finish speed switching.
- Pressure adjustment mechanism: Gears drive lifting/pressing components for precise polishing pressure control.
- Old equipment replacement: Gear set replacement for 18B-9P, YH2M8180, etc.
Product Advantages
- High torque & heavy duty, no thick material worries: Planetary structure + thickened tooth root, torque up to 200N·m, compatible with 11kW motor, no chipping on thick glass/ceramics.
- Precise transmission & top flatness: ISO Grade 6 + precision grinding, flatness ≤0.008mm, Ra≤0.08μm, optical-grade polishing quality.
- Wear resistance & long life, lower maintenance: HRC 56–62 + deep hardening, life ≥8000 hours, stable in dust/slurry environments.
- Low noise & smooth operation, higher yield: Helical + planetary meshing, noise ≤68dB, low vibration, workpiece yield ≥98.5%.
- VFD compatible & multi-process support: 0–3000rpm smooth speed control, one gear set for rough/finish/ultra-fine polishing.
- Planetary synchronization & uniform polishing: Precise revolution+rotation coordination, full-surface coverage, uniform thickness.
- Dust/corrosion resistance, harsh environment tolerance: Blackening/nickel plating, resist water-based slurry, dust, humidity, low failure rate.
- Complete interchangeability & easy replacement: Fit mainstream 180 models, sun+planet+ring gear set replacement, no redesign needed.
Why Choose us?
- 7-axis CNC Grinding: We adopt high-precision 7-axis CNC grinding machines, holding tolerances as tight as ±5μm, ensuring gears run quietly, smoothly and with outstanding durability.
- Strong technical expertise: Our core R&D team includes doctoral and master’s professionals specializing in spiral bevel gear technology, providing strong technical support for complex projects.
- Rigorous testing & high precision: All gears undergo 100% inspection with Gleason metrology systems. We can achieve DIN 6 grade accuracy with strict control over tooth profile and direction errors, keeping our quality at the industry-leading level.
- High transmission efficiency: Our gear designs support a single-stage reduction ratio of up to 300:1, with actual transmission efficiency reaching over 95%, greatly improving energy utilization.
- Excellent durability & cost efficiency: Our gears deliver 40% lower lifecycle cost and a failure rate below 0.5%, ensuring stable long-term operation and reduced maintenance costs.
- Fast response & short lead time: Supported by our digitalized production process, we are able to shorten the delivery cycle to only 20 working days, helping you accelerate project development and launch.
- Professional custom design capability: We provide fully customized gear solutions for applications requiring high-reduction, high-speed, heavy-load, low-noise, and special small-tooth profiles, based on your actual working conditions.
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