Planetary Reduction Drive

Each of our products comes in both single-stage and two-stage sizes for you to choose from. Generally, we provide customers with a variety of free selection options based on their specific needs, which have been comprehensively evaluated by our engineering team. The size of single-stage and two-stage mainly depends on the reduction ratio that customers need to use. For example, if customers require a reduction ratio between 3 and 10, they usually choose single-stage, while our two-stage planetary reduction drive can achieve a maximum reduction ratio of 100.

We can not only choose the size and reduction ratio of the product, but also the output shaft type of the planetary gearbox, the backlash of the product, and the motor model. For example, there are two types of output shaft types to choose from: Smooth Shaft and Shaft with Key; The product has three types of backlash to choose from: Ultra precise Backlash, Precise Backlash, and Standard Backlash, and the selection of motors is very diverse. Generally, we will ask customers to provide the following table of information to facilitate our search for the most suitable motor for them.

Now let me show you some of our company's more common product models, including the Economic Flange Type PGE060 Series, PGE090 Series, PGE120 Series, and PGE160 Series. Of course, our capabilities are not limited to this. If you need this product but our common specifications cannot meet your needs, please feel free to contact us and provide your requirements to our engineers. We can customize a product that meets your actual application.

Output Shaft Type Specifications

Metric Standard Motor Connecting Plate Dimensions (C1~C10)

Output Shaft Type Specifications

Metric Standard Motor Connecting Plate Dimensions (C1~C10)

Output Shaft Type Specifications

Metric Standard Motor Connecting Plate Dimensions (C1~C10)

Hansheng offers complimentary customization for non-standard motor mountings, spatial constraints, or special mechanical needs. Our 5-step co-engineering process ensures a reliable, tailor-made drive solution:

Housing Material & Manufacturing Process

This reducer housing is manufactured from 6061-T6 high-strength aluminum alloy. Compared with conventional cast iron, this material reduces weight by approximately 60% while maintaining excellent rigidity and thermal dissipation.

The housing features a three‑section design – input flange, central ring, and output flange – to facilitate precision machining and streamlined assembly.

Surface Finishing

1. Central ring: sand‑blasted + silver anodized (thickness 15–20 µm), providing improved corrosion resistance and heat radiation.
2. Input/output flanges: hard black anodized (thickness ≥30 µm), significantly increasing surface hardness, wear resistance, and mounting‑face rigidity.

Key Manufacturing Process

1. Precision casting (LPC or SSM casting) Obtaining the initial blank.
2. Multi‑axis CNC machining centers then perform complete finishing in a single setup – including flange spigots, mounting holes, and bearing bores(minimize accumulated tolerances).
3. Critical mating surfaces undergo finish milling and precision boring, achieving a concentricity between the output flange spigot and the output shaft centerline of ≤0.005 mm, and a face runout of ≤0.01 mm.

Core Planetary Gear Manufacturing Standards

Raw Materials
All gears are made of 20CrMnTi (or equivalent imported carburizing alloy steel). Each batch is subject to strict spectrometric composition analysis and grain size inspection (grain size ≥ grade 7 per ASTM E112).

Standard Mass-Production Process Route

Accuracy Grades

1. Standard mass‑production gears: ISO Grade 6 (for module ≤2 mm).
2. Critical gear pairs: Achieve higher consistency through profile and lead matching selection, with laser‑marked pairing codes to ensure proper meshing.
3. Grinding upgrade: ISO Grade 5 or higher, available for high‑speed or ultra‑low backlash applications.

Key Process Parameter Controls

• Effective case depth (CHD):

         Module m ≤ 2 → 0.3–0.5 mm;
         Module m > 2 → 0.5–0.8 mm (linearly interpolated according to actual module).

• Contact pattern (gear pair meshing inspection): ≥60% along tooth height and ≥75% along tooth length, evaluated per GB/T 13924 or ISO 1328‑2 contact zone method.
• Tooth modification: Based on finite element load analysis, crowning and tip relief are applied to reduce edge stress concentration.
• Backlash (side clearance) control: Controlled via tooth thickness reduction and center distance tolerance, combined with matching selection, offering three standard levels:

         P0: ≤3 arcmin (return angle)
         P1: ≤6 arcmin
         P2: ≤9 arcmin
(Note: The arcmin value represents the free angular displacement at the output shaft under no‑load conditions, with the input shaft locked.)

Engineering Tolerances & Quality Control System

Tolerance Standards

• General linear dimensions and geometrical tolerances comply with ISO 2768‑m.
• Critical mating dimensions follow the ISO 286 hole‑and‑shaft tolerance system.
• Geometrical tolerancing per ISO 1101.

Critical Mating Precision

• Output shaft: h6 fit (recommended mating bore: H7).
• Output flange spigot: g6 tolerance, face runout ≤0.01 mm, concentricity ≤0.005 mm.
• Input clamping bore: precision internal grinding, cylindricity ≤0.003 mm, ensuring zero‑clearance fit with the motor shaft.

Inspection & Testing

• First Article Inspection (FAI) performed for new tooling.
• Statistical Process Control (SPC) applied throughout production.
• 100% final inspection on every unit, including:

         Actual backlash measurement,
         No‑load running‑in (noise and drag torque monitoring),
         Temperature rise test,
         Oil seal leak test (helium leak detection).

Traceability
Each unit is assigned a unique serial number, enabling full traceability to raw material batch, key machining parameters, and final test records.