Bearing Up: Choosing The Best Bearings for Your Application | Purvis Industries

Bearing Up: Choosing

The Best Bearings

for Your Application 

Unmounted Bearings are a crucial element in a variety of machines and equipment, providing support for rotating shafts, reducing friction between moving parts, and ensuring seamless operation. The market offers several types of bearings, each with its own unique features and applications. In this post, we'll explore the various types of bearings, examine the best options available, and explore their uses in commercial and industrial settings.


Types of Bearings

Bearings are essential components used in various machines and equipment to provide support for rotating shafts, reduce friction between moving parts, and ensure smooth operation. There are several types of bearings available on the market, each with unique features and applications.


One of the most popular types of bearings is the ball bearing, which has a ball shaped rolling element that reduces friction between the inner and outer rings. These bearings are ideal for high-speed applications such as electric motors, fans, and pumps. Another sphere-shaped bearing is the spherical roller bearing. This bearing type has a spherical rolling element. A spherical roller bearing is a type of bearing used in heavy-duty industrial applications, such as in mining, construction, and transportation equipment. It is designed to handle high radial and axial loads while accommodating misalignment and angular deflection. Roller bearings are another type of bearing that has cylindrical or tapered rolling elements that support heavy loads and operate at high speeds. These bearings are commonly used in conveyor systems, gearboxes, and construction equipment. Roller bearings also include a needle bearing! A needle bearing is a type of roller bearing that is also known as a needle roller bearing. It uses long, thin cylindrical rollers with a small diameter relative to their length. These rollers are held in place by a cage that allows them to move freely while maintaining their relative positions. The needle bearings are frequently used in applications where space is restricted, and there are high load capacity requirements.


Plain bearings, also known as sleeve bearings, are simple designs that rely on sliding motion to reduce friction. They are often used in applications where low speeds and heavy loads are present. Thrust bearings are available in needle, cylindrical, ball, tapered and plain type bearings. Thrust bearings are designed to handle axial loads, such as those found in automotive transmissions, machine tools, and pumps. Thrust is an axial load function and radial is a load imposed at a right angle to the shaft. Ceramic bearings, made from high-performance ceramic materials, offer improved strength, durability, and resistance to heat and corrosion. These bearings are ideal for use in high-temperature environments such as industrial ovens and furnaces.


When it comes to choosing the best bearings for your application, several factors need to be considered, including load capacity, speed, accuracy, environment, and durability. Some of the best brands of bearings available on the market today include Dodge, NTN bearings, SKF bearings, and Timken bearings. Dodge Industrial Inc. is a manufacturer of bearings and power transmission components. They offer a wide range of bearing types and brands, including Ball bearings such as deep groove ball bearings, angular contact bearings, and thrust ball bearings. Roller bearings like cylindrical roller bearings, spherical roller bearings, and tapered roller bearings. Mounted bearings which include pillow block bearings, flange bearings, and take-up mounted bearings. As well as Linear bearings including linear motion guides and ball screw support bearings. They also offer a variety of bearing accessories such as bearing seals, lubricants, and tools for installation and maintenance. NTN produces a wide range of products suitable for various industries, including automotive, aerospace, construction, agriculture, and others. SKF is a leading manufacturer of high-quality bearings, bearing accessories, and lubrication systems, known for their reliability, performance, and long service life. Timken is the world’s largest tapered roller bearing manufacturer of precision bearings and power transmission products designed to withstand extreme conditions and provide consistent performance over time. Among Timken’s bearing products are, ball, needle, spherical, and spherical plain bearings.


Bearing Accessories


Bearings play an essential role in various machines and equipment, but they are not the only component needed to ensure proper functioning. Bearing accessories also contribute to improving performance, extending service life, and reducing maintenance costs. Some common bearing accessories are bearing housings, bearing lubrication, and bearing seals.

  • Bearing housings provide a secure mounting point for bearings and protect them from contamination and moisture.
  • Proper lubrication is essential to ensure optimal bearing performance and extend service life. Different lubrication options are available, including oil, grease, and solid lubricants. These different lubricates vary from use with food contact, low temp, hi-temp, and have different viscosities.
  • Bearing seals prevent contaminants from entering the bearing and protect against oil or grease leakage.


Bearings Uses


Bearings have numerous industrial and commercial applications, including the automotive industry, aerospace industry, industrial machinery, and medical equipment.

  • In the automotive industry, bearings are used in applications such as transmissions, engines, and wheel assemblies.
  • Bearings are also used in industrial machinery, such as conveyor systems, machine tools, and pumps.
  • Medical equipment also relies on bearings, which are used in various applications such as pumps, respirators, X-ray, and robotic surgical equipment.

Dodge Industries INC.


Types of Bearings Purvis Provides

Miniature & Instrument Ball Bearings

Cylindrical Roller Bearing

Bearing Shims for Bearing Accessories

Plain Sleeved & Flanged Bearings

Check Out the Latest Blog!