China wholesaler Reducer Bevel Gear and Spiral Pinion Gear with 20CrMoA Steel worm and wheel gear

Product Description

Reducer Bevel Gear and Spiral Pinion Gear with 20CrMoA Steel

Product Description

Pinion Gears

ZTIC  Pinion Gears offered find extensive application in Sponge Iron Plants that have running capacities of -50TPD, 100TPD, 300TPD, 350TPD, 500TPD. Further, these also provide functionality as integral pinion shaft for cement plants/ball mills and as pinion & pinion assemblies for Phosphate mining plants, Alumina, Kaolin-Bentonite plants and others. Further, we can also custom design these in finish specifications as demanded by the customers.

Pinion for:-Sponge iron plant-50TPD, 100TPD,300TPD,350TPD,500TPDIntegral pinion shaft for cement plant or ball mills Pinion & pinion assemblies for Alumina, kaolin-bentonite plants, phosphate mining plantMain Type of pinion applications as given below for the all above mentioned plants:Kiln Pinion Cooler pinion Pinion shaft Pinion assembled with shaft, bearings, plummer blocks Integral pinion shaft upto 3 mtr total lentgh.

Reducer Bevel Gear and Spiral Pinion Gear with 20CrMoA Steel

Company Profile

Our Advantages



After Sales Service

HangZhou ZXIHU (WEST LAKE) DIS.I INDUSTRIES able to provide:







HangZhou ZXIHU (WEST LAKE) DIS.I INDUSTRIES’s Field Service Engineers are trained specifically in the HangZhou ZXIHU (WEST LAKE) DIS.I INDUSTRIES brand group products but are capable of undertaking the servicing of other OEM brands.

Our technicians are equipped with the most advanced technological diagnostic equipment available to trouble shoot your equipment to optimise performance and minimise down time.

HangZhou ZXIHU (WEST LAKE) DIS.I INDUSTRIES also has an extensive capability in supplying all you consumable and electrical/ mechanical spare part needs.


Q: Why we believe in HangZhou CHINAMFG industries co., ltd:

A: 1. More than 30 years experience.

2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts.

3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.

Q:Delivery time?

A: Parts lead time 1-2months, machines 2-3months.

Q:Payment terms?

A: Accept payment type: T/T, L/C, Western union,Cash.

30% deposit when signed contract. Full payment paid before shipping.

Q: Quality warranty?

A: Guarantee time: 1 year for main machinery. If something wrong we will provide the technical advice and find solution immediately. For those wearing parts we guarantee high quality parts for long-term supply.

Q: After sales service?

A: We can supply technical guide for machines running test and parts maintenance if end user needs.


Application: Machinery
Hardness: Hardened Tooth Surface
Gear Position: as Required
Manufacturing Method: Cast Gear
Toothed Portion Shape: Curved Gear
Material: Cast Steel


Customized Request


spiral gear

How do spiral gears contribute to reducing noise and vibration?

Spiral gears contribute significantly to reducing noise and vibration in gear systems. Their unique design and characteristics help minimize unwanted sound and vibrations. Here’s how spiral gears achieve noise and vibration reduction:

  • Gradual Tooth Engagement: Spiral gears have a helical tooth arrangement, which results in gradual tooth engagement as the gears mesh. Unlike spur gears with instantaneous full tooth contact, the helical teeth of spiral gears gradually come into contact, reducing the impact and shock during gear meshing. This gradual engagement helps to minimize noise and vibration.
  • Improved Contact Pattern: The helical tooth profile of spiral gears produces a favorable contact pattern between the teeth. The contact pattern is more evenly distributed across the tooth face compared to spur gears, which reduces stress concentration and potential noise generation. The improved contact pattern contributes to smoother and quieter gear operation.
  • Load Distribution: Spiral gears distribute the load over multiple teeth due to their helical shape. This load distribution helps to minimize localized stresses and reduces the risk of tooth breakage or pitting, which can contribute to noise and vibration. By spreading the load across a larger contact area, spiral gears ensure smoother and more stable gear operation.
  • Reduced Sliding Friction: The sliding friction between gear teeth can generate noise and vibration. Spiral gears, with their helical tooth profile, exhibit reduced sliding friction compared to spur gears. The sliding motion is distributed along the helical path, resulting in smoother tooth contact and reduced friction-induced noise and vibration.

Collectively, these factors—gradual tooth engagement, improved contact pattern, load distribution, and reduced sliding friction—contribute to the noise and vibration reduction achieved by spiral gears. This makes them particularly suitable for applications where quiet operation and minimal vibration are essential, such as precision machinery, automotive transmissions, and other noise-sensitive environments.

spiral gear

How do spiral gears handle variations in speed and load conditions?

Spiral gears, also known as helical gears, are designed to effectively handle variations in speed and load conditions. Their unique tooth profile and design features allow them to adapt to changing operating conditions. Here’s how spiral gears handle variations in speed and load:

  • Gradual Tooth Engagement: The helical tooth arrangement in spiral gears enables gradual tooth engagement as the gears mesh. This characteristic is advantageous when dealing with speed variations. The gradual engagement reduces impact and minimizes the shock loads that can occur during rapid changes in speed, ensuring smoother gear operation and improved reliability.
  • Load Distribution: Spiral gears distribute the load across multiple teeth due to their helical tooth arrangement. This load distribution capability is beneficial when encountering variations in load conditions. By spreading the load over multiple teeth, spiral gears can handle higher loads and minimize stress concentrations on individual teeth. This feature helps prevent premature wear and tooth failure, ensuring better performance under changing load conditions.
  • Efficient Power Transmission: Spiral gears offer efficient power transmission, even when there are variations in speed and load. The gradual tooth engagement, combined with the curved tooth profile, reduces sliding friction and ensures smooth gear operation. This efficiency in power transmission helps maintain consistent performance and minimizes energy losses, regardless of speed and load variations.
  • Ability to Handle Shock Loads: Spiral gears have the ability to handle shock loads that may occur during sudden changes in load or speed conditions. The gradual tooth engagement and load distribution characteristics help absorb and distribute the impact forces, reducing the risk of gear damage or failure. This resilience to shock loads enhances the overall durability and reliability of spiral gears.
  • Flexibility in Gear Design: Spiral gears offer flexibility in gear design, allowing for customization to meet specific speed and load requirements. The helix angle, number of teeth, and tooth profile can be tailored to optimize performance under varying operating conditions. This adaptability in gear design ensures that spiral gears can effectively handle a wide range of speed and load variations.

These features and design characteristics of spiral gears enable them to handle variations in speed and load conditions effectively. Their ability to provide gradual tooth engagement, distribute loads, transmit power efficiently, handle shock loads, and accommodate flexible gear design makes them suitable for diverse applications where speed and load variations are encountered.

spiral gear

Can you describe the unique tooth profile of spiral gears?

The unique tooth profile of spiral gears, also known as helical gears, sets them apart from other gear types. Here is a description of the key characteristics of the tooth profile:

  • Helical Shape: The teeth of spiral gears are helically shaped, meaning they have a curved or slanted form. This helical shape is a result of the helix angle, which is the angle between the tooth surface and the gear axis. The helical shape allows for gradual tooth engagement and smooth gear operation.
  • Curved Tooth Surface: The tooth surface of spiral gears is curved or oblique due to the helical shape. This curved profile enables the teeth to engage gradually and smoothly as the gears rotate, reducing impact and noise during gear meshing.
  • Lead: The lead of a spiral gear refers to the distance the gear advances axially in one complete revolution. The lead is determined by the helix angle and the number of teeth on the gear. The lead affects the contact pattern and gear meshing characteristics.
  • Contact Pattern: When spiral gears mesh, the contact pattern between the teeth changes as the gears rotate. Initially, the contact starts near the smaller end of the tooth and gradually moves across the tooth face as the gears rotate. This shifting contact pattern helps distribute the load over multiple teeth and reduces localized stresses.
  • Helix Angle: The helix angle is the angle between the tooth surface and the gear axis. It determines the amount of helical shape in the tooth profile. A larger helix angle results in a more pronounced helical shape, while a smaller angle produces a shallower helix. The helix angle affects the load-carrying capacity, smoothness of operation, and axial thrust characteristics of the spiral gears.

These unique characteristics of the tooth profile in spiral gears, such as the helical shape, curved tooth surface, lead, contact pattern, and helix angle, contribute to their smooth operation, efficient power transmission, and ability to handle high loads. The tooth profile design of spiral gears is crucial in achieving reliable and effective gear meshing in various mechanical systems and applications.

China wholesaler Reducer Bevel Gear and Spiral Pinion Gear with 20CrMoA Steel worm and wheel gearChina wholesaler Reducer Bevel Gear and Spiral Pinion Gear with 20CrMoA Steel worm and wheel gear
editor by CX 2023-10-26