Evolution of Rolling Elements: From Single to Double Row

KG India

Ball bearings are a fundamental component in machinery across numerous industries. KG ball bearings have been renowned for their quality and durability. These bearings can support both radial and axial loads, ensuring smooth operations, especially at high speeds. A typical ball bearing consists of inner and outer races that house the rolling element – in this case, balls.

The Diversity of Ball Bearings
There is a wide variety of ball bearing types, each designed to serve specific operational needs. Some of the notable types include:

  • Deep Groove Ball Bearings: The most common type, suitable for high speeds and can manage both radial and axial loads.
  • Angular Contact Ball Bearings: These have a specific contact angle, allowing them to handle larger axial forces.
  • Thrust Ball Bearings: Primarily designed to manage axial forces rather than radial loads.
  • Self-Aligning Ball Bearings: Unique in that they can correct misalignments due to shaft errors.

Why Double Row Ball Bearings are Preferred Over Single Row Ball Bearings?  

Single-Row Ball Bearings: In the vast world of mechanical applications, ball bearings are pivotal components, ensuring smooth operations across many machines. Single-row and double-row ball bearings are two primary categories among the various types of ball bearings available. Both have their strengths and specific applications, but there are distinctive reasons why many modern industries and machines favour double-row ball bearings over their single-row counterparts. At a glance, single-row ball bearings are the preferred choice for many due to their simplicity. They are the most common type of ball bearings, characterized by a single row of rolling elements. Their straightforward construction makes them non-separable and exceptionally appropriate for high-speed applications. Their resilience in operations is commendable, as they can adeptly handle both radial and axial loads.

From Single to Double Row: Why the Shift?  

The single-row ball bearing, with just one row of balls, is incredibly versatile. However, with the increasing demands in the automotive bearings sector and other industries, the need for a bearing that can handle even higher radial load capacities became evident. With two rows of balls, they effectively distribute the load, allowing for enhanced radial and axial load ratings. This double row design, especially in angular contact bearings, ensures that they can handle larger combined loads compared to their single-row counterparts.

Double Row Ball Bearings: By design, they are inherently more robust than single-row bearings. This robustness allows them to manage higher loads, especially in scenarios where there’s a need to handle radial and axial loads in both directions simultaneously. This dual-load capability ensures that the shaft and housing axial movement is kept within the axial clearance of the bearing, enhancing operational efficiency.

The complexity of double-row ball bearings and their need for more precise manufacturing tolerances could be a drawback. However, this complexity translates to versatility and durability in modern applications. For instance, consider electric vehicles requiring efficient power transmission and longer operational lifespans. A double-row ball bearing can handle the higher torque and loads more effectively than a single-row bearing. Similarly, in industrial sectors such as wind energy, where turbines must operate seamlessly in varying wind conditions, double-row bearings provide the stability and load-bearing capacity required.

While single-row ball bearings are exceptional in their simplicity and functionality, double-row ball bearings have carved a niche in modern scenarios that demand higher load capacities and versatility. Their ability to offer enhanced performance, especially in demanding conditions, is why they’re often preferred over their single-row counterparts.

Materials Matter: The Role of Stainless Steel

Quality control in bearing manufacturing is vital. At KG, we ensure that our ball bearings are made of the highest quality materials. Stainless steel stands out for its durability, corrosion resistance, and suitability for high-speed applications. With the use of stainless steel, the lifespan of the bearing is significantly increased, making it a favored choice for critical industry applications.

Why KG Bearings Stand Out?

KG has firmly established itself as an industry leader in the bearings market. With a relentless emphasis on quality control, KG India offers a wide range of bearings to cater to varying industry needs. Whether you’re looking for high-speed automotive bearings or specific angular contact ball bearing designs, KG ensures optimal performance with every product. Our offerings are not just about the product but also about the knowledge we impart. With KG, businesses can get access to the best bearings at a competitive pricing, ensuring they make informed decisions for their machinery needs.

Closing Thoughts

The journey of rolling elements from single to double row highlights the continuous push towards matching the trends and requirements. As the demands evolve, so does the design and functionality of essential components like ball bearings. KG Bearings are made with precision. These are not just products; they’re an industry legacy.

Worm gearboxes are a crucial component in numerous industrial applications. If you are in the market for a new gearbox, it is important to understand what a worm gearbox is and how it can benefit you. In this blog post, we will provide an overview of worm gearboxes, their components, how they work, the types available, and their advantages.

We will also discuss some common applications of worm gearboxes and why you should choose KG International as your leading provider.

What Is a Worm Gearbox?

It is also known as a worm gear reducer, a gear system used to transmit power between two shafts transmit that are perpendicular to each other. Worm gearboxes are used in many industrial applications, including conveyor systems, packaging machinery, and construction equipment’s. They are designed to be compact, efficient, and low maintenance, making them an ideal solution for many applications.

Components of a Worm Gearbox

They are made up of two main components: the worm gear and the worm wheel. The worm gear is a type of a gear with a screw-like thread that meshes with the teeth of the worm wheel. The worm wheel is a type of gear that is shaped like a ring with teeth on the inside. The worm gear and worm wheel are made of materials such as steel, bronze, or aluminium, depending on the application.

How Does a Worm Gearbox Work?

The worm gear and worm wheel work together to create a gear ratio, which is the ratio between the number of teeth on the worm wheel and the number of threads on the worm gear. When the worm gear rotates, it turns the worm wheel, which in turn rotates the output shaft. The gear ratio of a worm gearbox is typically higher than that of other types of gearboxes,

which makes them ideal for applications where a high reduction ratio is required.

Types of Worm Gearbox

There are two main types of worm gearboxes:

Single Reduction and Double Reduction.

Single reduction: It has one set of gears, while double reduction worm gearboxes have two sets of gears.

Double reduction: They have a higher gear ratio than single reduction worm gearboxes, making them ideal for applications where a higher reduction ratio is required.

Advantages of Worm Gearbox

Worm gearboxes offer many advantages, including:

1. High gear ratios – They can achieve high gear ratios, making them ideal for applications where a high reduction ratio is required.

2. Compact size – They are typically more compact than other types of gearboxes, making them ideal for applications where space is limited.

3. Smooth operation – It is operated smoothly and quietly, making them ideal for applications where noise is a concern.

4. Low maintenance – It requires less maintenance than other types of gearboxes, making them a cost-effective solution in the long term.

It is an important component in many industrial applications, providing high gear ratios, smooth operation, and low maintenance. It is an ideal solution for applications where a high reduction ratio is required, and where space is limited. They are commonly used in conveyor systems, packaging machinery, and construction equipment’s, making them a versatile and essential component for many industries.

Applications of Worm Gearbox

They are used in many industrial applications, including:

Conveyor systems – They are used to drive conveyor belts and other types of material handling equipment’s.

Packaging machinery – They are used in packaging machinery to control the movement of products on the production line.

Construction equipment – They are used in construction equipment such as cranes and hoists to lift and move the heavy loads.

When choosing a provider for your worm gearbox needs, KG International stands out as a leading provider with a wide range of high-quality products. With a focus on customer satisfaction and providing customized solutions, KG International is dedicated to meet the unique needs of each customer.


Worm gearboxes are an important component in many industrial applications. They offer high gear ratios, compact size, smooth operation, and low maintenance, making them an ideal solution for many applications.

KG International is a leading provider of worm gearboxes.

We offer a wide range of products to suit your needs.