{"id":3339,"date":"2025-10-24T11:50:33","date_gmt":"2025-10-24T03:50:33","guid":{"rendered":"https:\/\/www.guomaolide.com\/?p=3339"},"modified":"2025-10-24T15:23:37","modified_gmt":"2025-10-24T07:23:37","slug":"parallel-helical-gear-material-manufacture-considerations","status":"publish","type":"post","link":"https:\/\/www.guomaolide.com\/es\/2025\/10\/24\/parallel-helical-gear-material-manufacture-considerations\/","title":{"rendered":"Parallel Helical Gear Material & Manufacture Considerations"},"content":{"rendered":"

In heavy-duty factory drives, parallel helical gears hold a main spot. They make sure power moves smoothly. They help the gear last a long time. And they keep the noise low during work. How well they do comes from the exact design. It also comes from the materials picked. Plus, it comes from how carefully the making steps are. From metal work to heat steps, each choice shapes how steady a gearbox runs under big pulls and steady work.<\/p>\n

At Guomao, we learned a lot about materials, cutting, and heating methods. These set gear quality in move systems, lift setups, mix gear, and water cleaning machines. This piece looks at the main material and makes points for parallel helical gears. It shows how good planning can boost power, smooth running, and long hold in real factory spots.<\/p>\n

Material Selection for Parallel Helical Gears: Balancing Strength and Durability<\/strong><\/h2>\n

Core Mechanical Requirements for Gear Materials<\/strong><\/h3>\n

The material for a parallel helical gear must allow a steady torque pass. It needs to handle the bending stress at the tooth base. And it must fight roll touch wear on the tooth face. It also calls for core strength to stop breaks under hit loads.<\/p>\n

So, a solid material must give:<\/p>\n

    \n
  1. High fatigue strength to deal with repeat loads.<\/li>\n
  2. Enough hardness for a face wear fight.<\/li>\n
  3. Size remains steady under long heat changes.<\/li>\n<\/ol>\n

    For steady-work drives like move belts or cranes, materials must keep these traits at work heat from \u221210 \u00b0C to 40 \u00b0C. Guomao sets this in product rules.<\/p>\n

     <\/p>\n

    \"Reductor<\/div>\n

    Common Materials Used in Industrial Helical Gears<\/strong><\/h3>\n

    Most factory parallel helical gears use alloy steels. These give good hardening skills and strength. Common types include 20CrMnTi, 18CrNiMo, and 42CrMo. All work well in Guomao’s GR and GF series gearboxes.<\/p>\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n
    Material<\/strong><\/td>\nKey Characteristics<\/strong><\/td>\nTypical Application<\/strong><\/td>\n<\/tr>\n
    20CrMnTi<\/td>\nExcellent carburizing response, high surface hardness, strong core toughness<\/td>\nConveying machinery, mixers<\/td>\n<\/tr>\n
    18CrNiMo<\/td>\nSuperior fatigue resistance and low distortion after quenching<\/td>\nHoisting systems and cranes<\/td>\n<\/tr>\n
    42CrMo<\/td>\nHigh strength and wear resistance for medium-speed, heavy-load drives<\/td>\nWater-treatment and chemical agitators<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    For spots with wet air or chemicals, stainless steel or hardened alloy steels fit. They fight rust without losing work traits.<\/p>\n

    Heat Treatment and Surface Hardening Options<\/strong><\/h3>\n

    Heat steps turn alloy steels into load holders for many hours.<\/p>\n

    Common face-harden ways include:<\/p>\n

      \n
    1. Carburizing and quenching. This makes a deep, hard layer (0.8\u20131.2 mm). It fits big-load jobs like moving belts and cranes.<\/li>\n
    2. Nitriding and carbonitriding. This gives a thin but hard face layer. It cuts the shape change. It suits mixers or water clean drives.<\/li>\n
    3. Induction hardening. This goes on set spots like gear shafts or joint ends. It makes stress spots stronger.<\/li>\n<\/ol>\n

      The hard layer must go from high face hardness (58\u201362 HRC) to a strong core. This stops tooth breaks. Soft steps after the heat cut left stress. They keep their size steady and run quietly for a long time.<\/p>\n

      Manufacturing Processes: From Gear Blank to Precision Helical Tooth<\/strong><\/h2>\n

      Gear Blank Preparation and Machining Sequence<\/strong><\/h3>\n

      The worth of a helical gear starts with the blank. Guomao<\/u><\/strong><\/a> often uses shaped alloy steel blanks. These give tight grain and few inside flaws. After shaping, the blank gets rough cut and stress cut. This clears the left stress before tooth work.<\/p>\n

      A usual cut path includes:<\/p>\n

        \n
      1. Turning and boring to set the exact center holes.<\/li>\n
      2. Rough milling of keyways and base faces.<\/li>\n
      3. Stress-relief annealing to steady the build before fine cut.<\/li>\n<\/ol>\n

        Tooth Cutting and Finishing Operations<\/strong><\/h3>\n

        Gear teeth form with hobbing or shaping. This picks by batch size and exact needs.<\/p>\n

          \n
        1. Hobbing fits big runs. It gives a steady tooth shape and smooth sides.<\/li>\n
        2. Shaping or milling works for odd gears or test pieces.<\/li>\n<\/ol>\n

          After the cut, gears get heat steps. Then the finish grind follows. This clears shape change and sets tooth lines right.<\/p>\n

          Finish grind brings:<\/p>\n