China manufacturer Oil Rig Rotary Table Large Spiral Bevel Gear helical bevel gear

Product Description

Oil Rig Rotary Table Large Spiral Bevel Gear

Our Advantages

Our advantange, Low MOQ as less as 1 piece, 100% inspection, Short Lead time.

Our service

We manufacture various gears made according to drawing.

Item Customized machined machining gears
 Process  CNC machining
material  steel, stainless steel, carbon steel,brass,C360 brass copper, aluminum 7075,7068
Quality Control ISO9001 and ISO14001
Dimension bore tolerances -/+0.01mm
Quality standard AGMA, JIS, DIN 
Surface treatment Blackening, plated, anodizing, hard anodizing etc
Material  steel, stainless steel, carbon steel,brass,C360 brass copper, aluminum Nylon, PA66, NYLON , ABS, PP,PC,PE,POM,PVC,PU,TPR,TPE,TPU,PA,PET,HDPE,PMMA etc.
Gear 30 to 90 H.R.C
Size/Color  Gears and parts dimensions are according to drawings from customer, and colors are customized
Surface treatment Polished or matte surface, painting, texture, vacuum aluminizing and can be stamped with logo etc.
Size Tolerance ±0.01mm or more precise
Samples confirmation and approval samples shipped for confirmation and shipping cost paid by customers
Package Inner clear plastic bag/outside carton/wooden pallets/ or any other special package as per customer’s requirements.
Delivery Time Total takes 2~~4weeks usual
Payment Terms PAYPAL, T/T, Western Union
Shipping Usual FEDEX, UPS, DHL, TNT, EMS or base on customer’s requirement.


Our Product

During the pass 10 years, we have supplied hundreds of customers with perfect precision machining jobs:

Workshop & machining process


Production process: Molding Cutting, Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching,Gear Shaving, Gear Grinding and Gear Lapping.


Q: Are you treading company or manufacturer?
A: We are manufacturer.

Q: How about your MOQ?
A: We provide both prototype and mass production, Our MOQ is 1 piece.

Q:How long can I get a quote after RFQ?
A:we generally quote you within 24 hours. More detail information provided will be helpful to save your time.
1) detailed engineering drawing with tolerance and other requirement.
2) the quantity you demand.

Q:How is your quality guarantee?
A:we do 100% inspection before delivery, we are looking for long term business relationship.

Q:Can I CHINAMFG NDA with you?
A:Sure, we will keep your drawing and information confidential.


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Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Industry
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Rolling Gear
Toothed Portion Shape: Spur Gear
Material: Stainless Steel
US$ 5/Piece
1 Piece(Min.Order)

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Customized Request

spiral gear

What is the role of spiral bevel gears in drivetrain systems?

Spiral bevel gears play a crucial role in drivetrain systems, contributing to power transmission, torque redirection, and overall performance. Here’s an overview of the role of spiral bevel gears in drivetrain systems:

  • Torque Transfer: Spiral bevel gears are responsible for transmitting torque between the engine and the drivetrain components. They are commonly used in vehicle differentials and transfer cases to distribute torque to the wheels or other output shafts. Their precise tooth meshing ensures efficient power transfer, allowing the vehicle to move and effectively utilize engine power.
  • Torque Redirection: In drivetrain systems, spiral bevel gears are utilized to redirect torque and change the direction of power flow. For example, in rear-wheel drive vehicles, the spiral bevel gears in the differential redirect torque from the driveshaft to the rear wheels, enabling the vehicle to turn smoothly. Similarly, in four-wheel drive or all-wheel drive systems, spiral bevel gears in the transfer case redirect torque between the front and rear axles, providing traction and improved handling on various terrains.
  • Gear Ratio Selection: Spiral bevel gears can be designed with different gear ratios to optimize vehicle performance. By choosing appropriate gear ratios, drivetrain systems can provide the desired balance between torque, speed, and efficiency. Spiral bevel gears allow for a wide range of gear ratio options, enabling manufacturers to tailor the drivetrain system to specific vehicle types and applications.
  • Noise and Vibration Control: Spiral bevel gears are designed to minimize noise and vibrations in drivetrain systems. The helical tooth profile of spiral bevel gears allows for smoother tooth engagement, reducing gear meshing noise and vibration levels. This enhances driving comfort and reduces wear and tear on the drivetrain components.
  • Compact Design: Spiral bevel gears offer a compact and space-efficient design, making them suitable for integration into drivetrain systems with limited space. Their compactness allows for efficient power transfer while optimizing the packaging of the drivetrain components within the vehicle chassis.
  • Durability and Reliability: Drivetrain systems are subjected to demanding operating conditions, and spiral bevel gears are designed to withstand these challenges. They are engineered to provide durability and reliable performance under high loads, ensuring the drivetrain system’s longevity and minimizing the need for frequent maintenance.

Overall, spiral bevel gears play a vital role in drivetrain systems by enabling torque transfer, torque redirection, gear ratio selection, noise control, compact design, and ensuring durability. Their precise and efficient operation contributes to the performance, efficiency, and reliability of various vehicles, ranging from passenger cars to heavy-duty trucks and off-road vehicles.

spiral gear

How do you calculate the gear ratio in a spiral gear system?

The gear ratio in a spiral gear system can be calculated by comparing the number of teeth on the driving gear (pinion) to the number of teeth on the driven gear (gear). The gear ratio represents the ratio of the angular velocity (speed) of the driving gear to the angular velocity of the driven gear. Here’s the formula to calculate the gear ratio:

Gear Ratio = Number of Teeth on Driven Gear / Number of Teeth on Driving Gear

For example, consider a spiral gear system where the driving gear (pinion) has 20 teeth, and the driven gear (gear) has 40 teeth. The gear ratio can be calculated as follows:

Gear Ratio = 40 / 20 = 2

In this example, the gear ratio is 2, which means the driven gear will rotate at half the speed of the driving gear. This calculation assumes that the gears have the same module (gear size) and that there are no additional gear stages in the system.

It’s important to note that the gear ratio determines the speed and torque relationship between the driving and driven gears. A gear ratio greater than 1 (e.g., 2, 3, etc.) indicates a reduction in speed and an increase in torque, while a gear ratio less than 1 (e.g., 0.5, 0.75, etc.) indicates an increase in speed and a reduction in torque.

When working with spiral gears, it’s essential to consider the helix angle and axial thrust in addition to the gear ratio to ensure proper gear design and performance.

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 manufacturer Oil Rig Rotary Table Large Spiral Bevel Gear helical bevel gearChina manufacturer Oil Rig Rotary Table Large Spiral Bevel Gear helical bevel gear
editor by CX 2024-04-10