Best Round Belts & O-Ring Belts of 2025

Harvey Wall Avatar
Harvey Wall
Last Updated: 29 Jan 2025

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Round Belts and O-Ring Belts are two types of power transmission belts commonly used in various industries. Round Belts are made of elastic materials and have a circular cross-section, providing a smooth and consistent drive. On the other hand, O-Ring Belts have a round cross-section with a rubber O-ring embedded in the belt, providing excellent grip and preventing slippage. Both types of belts are highly durable, flexible, and resistant to abrasion, making them suitable for use in diverse applications such as conveyors, printing presses, and packaging machines.

At a Glance: Our Top Picks

sourcing map 10ft High-Performance Urethane Belt Cover #TOP 1
sourcing map 10ft High-Performance Urethane Belt
ftb score rating icon 9.9
sourcing map 3ft 5mm PU Round Belt Cover #TOP 2
sourcing map 3ft 5mm PU Round Belt
ftb score rating icon 9.8
sourcing map PU Transmission Belt 5mm Diameter Cover #TOP 3
sourcing map PU Transmission Belt 5mm Diameter
ftb score rating icon 9.6

Top 10 Round Belts & O-Ring Belts

#TOP 1

sourcing map 10ft High-Performance Urethane Belt

a19041000ux0509
Orange
sourcing map 10ft High-Performance Urethane Belt Cover
sourcing map 10ft 6mm PU Transmission Round Belt High-Performance Urethane Belting Orange for Drive Transmission Conveyor Bonding Machine Dryer

The sourcing map Urethane Belt measures 3 metres in length and has a diameter of 6mm, making it ideal for various drive transmission applications. Its high tensile strength and abrasion resistance ensure durability, allowing you to rely on it for prolonged usage. Additionally, the belt's impact resistance and anti-oil properties protect it from damage, making it suitable for demanding environments. You will also appreciate the chemical resistance and plasticizer-free design, which enhances its longevity and performance.

What We Like
High tensile strength
Easy to weld
Long service life
Abrasion and impact resistant
Chemical resistance
#TOP 2

sourcing map 3ft 5mm PU Round Belt

a19041000ux0522
Green
5mm(3ft)
sourcing map 3ft 5mm PU Round Belt Cover
sourcing map 3ft 5mm PU Transmission Round Belt High-Performance Urethane Belting Green for Conveyor Bonding Machine Dryer

The sourcing map Round Belt is a high-performance urethane belting option designed for various industrial applications. With a length of 1 metre and a diameter of 5mm, this belt offers high tensile strength and excellent abrasion resistance, ensuring durability and reliability in use. Its impact resistance and anti-oil properties make it suitable for challenging environments. Additionally, the belt is easy to weld and install, allowing you to integrate it seamlessly into your equipment, ultimately saving you time and effort.

What We Like
High tensile strength
Excellent abrasion resistance
Easy to weld and install
Long service life
#TOP 3

sourcing map PU Transmission Belt 5mm Diameter

a23061300ux0858
Black
5mmx1 Meter
sourcing map PU Transmission Belt 5mm Diameter Cover
sourcing map PU Transmission Belt Polyurethane Round Belts 5mm Dia 3.3ft(1 Meter) Length Smooth Surface Urethane Belt for Drive Transmission, Black

The sourcing map PU Belt features a 5mm diameter and a smooth black surface, making it ideal for various applications. Its polyurethane construction ensures high tension resistance and strong pulling force, providing reliability in performance. You will appreciate its abrasion and impact resistance, enhancing durability during use. Additionally, the adjustable length feature allows you to cut the belt to your desired size, making installation straightforward and convenient for your specific needs.

What We Like
High tension resistance
Adjustable length for convenience
Abrasion and impact resistant
Easy to weld and install
Waterproof and oil proof
#TOP 4

sourcing map 10ft PU Round Belt for Machines

a19041000ux0547
Green
0.24''
sourcing map 10ft PU Round Belt for Machines Cover
sourcing map 10ft 6mm PU Transmission Round Belt High-Performance Urethane Belting Green for Conveyor Bonding Machine Dryer

The sourcing map PU Round Belt is a high-performance urethane belting designed for optimal drive transmission in various machines. With a length of 3 metres and a diameter of 6mm, this belt offers high tensile strength and excellent abrasion resistance, ensuring durability in demanding environments. Its impact resistance and anti-oil properties provide added protection, making it suitable for use in packaging and printing machines. You will appreciate the ease of welding and installation, which saves you time and effort while enhancing the longevity of your equipment.

What We Like
High tensile strength
Easy installation
Long service life
Abrasion and impact resistance
Chemical resistance
#TOP 5

sourcing map Polyurethane Round Belt 5mm Dia

a22080600ux0874
Black
5mmx3 Meters
sourcing map Polyurethane Round Belt 5mm Dia Cover
sourcing map Polyurethane Round Belts 5mm Dia 9.84ft(3 Meters) Length Smooth Surface PU Urethane Belt for Drive Transmission, Black

The sourcing map Round Belt features a 5mm diameter and a length of 9.84ft, making it an ideal choice for various applications. Its polyurethane composition ensures high tension resistance and strong pulling force, which means you can rely on it for demanding tasks. The adjustable length allows you to cut it to your desired size, offering flexibility in use. Additionally, its wide working temperature range makes it easy to weld and install, providing you with convenience during setup.

What We Like
High tension resistance
Adjustable length
Wide temperature range
Abrasion and impact resistant
#TOP 6

sourcing map 2mm Polyurethane Round Belt

a23050700ux0166
Green
2mmx5 Meters
sourcing map 2mm Polyurethane Round Belt Cover
sourcing map Polyurethane Round Belts 2mm Dia 16.4ft(5 Meters) Length Rough Surface PU Urethane Belt for Drive Transmission, Green

The sourcing map Round Belt features a diameter of 2mm and a length of 16.4ft (5 metres), making it versatile for various applications. Its polyurethane construction offers high tension resistance and strong pulling force, ensuring durability and reliability in demanding environments. You will appreciate its abrasion, impact, and oil proof qualities, protecting it from wear and tear. Additionally, the adjustable length allows you to cut the belt to your desired size and easily weld it, providing convenience for your specific needs.

What We Like
High tension resistance
Adjustable length for customisation
Durable and abrasion resistant
Wide application range
#TOP 7

High-Performance Urethane Round Belting

Hilitand5hprzeyuck-01
green
2mm*10m
High-Performance Urethane Round Belting Cover
Urethane Round Belting, High-Performance PU Transmission Belt Polyurethane Round Belt for Drive Transmission Green(2mm*10m)

The Hilitand PU Round Belt offers exceptional durability and versatility for your drive transmission needs. Its high-performance urethane material is impact resistant, ensuring long-lasting use even in demanding environments. You can benefit from its anti-oil and water properties, making it suitable for various applications, including packaging and printing machines. Additionally, this belt can replace traditional rubber products, providing a more efficient and reliable solution. Its easy welding and installation features mean you’ll save time and effort during setup.

What We Like
Impact resistant material
Anti-oil and water properties
Easy to weld and install
Long service life
#TOP 8

sourcing map 16ft Urethane Round Belt

a19041000ux0521
Green
3mm(16ft)
sourcing map 16ft Urethane Round Belt Cover
sourcing map 16ft 3mm PU Transmission Round Belt High-Performance Urethane Belting Green for Conveyor Bonding Machine Dryer

The sourcing map Round Belt is a high-performance urethane belting that measures 5 metres in length and has a diameter of 3mm. Its impressive tensile strength and abrasion resistance ensure durability, making it ideal for demanding applications. With its chemical resistance and plasticizer-free composition, you can use this belt in various environments without worry. Moreover, it is easy to weld and install, saving you time and effort when setting it up. This combination of features guarantees long service life and reliability for your machinery.

What We Like
High tensile strength
Easy to weld
Long service life
Abrasion resistant
Chemical resistance
#TOP 9

Kozelo High-Performance Urethane Round Belt

Kozelo
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Green
3 M x 5 mm
Kozelo High-Performance Urethane Round Belt Cover
Kozelo High-Performance Urethane Round Belting - [3 M Length x 5mm Diameter] PU Transmission Belt Polyurethane Belt for Drive Transmission Use, Green

The Kozelo Urethane Round Belt offers excellent durability and versatility for various applications. Made from high-quality urethane, it provides impressive tensile strength, making it suitable for demanding tasks in industries like packaging and printing. Its smooth surface and high hardness enhance wear and impact resistance, ensuring a long lifespan. Additionally, the belt is easy to weld and install, allowing you to save time and effort during setup. This makes it a practical choice for anyone in need of a reliable drive transmission solution.

What We Like
High tensile strength
Versatile applications
Exceptional wear resistance
Easy to install
#TOP 10

sourcing map 33inch PU Transmission Round Belt

a19041000ux0513
0.84m x 3mm
sourcing map 33inch PU Transmission Round Belt Cover
sourcing map 33inch 3mm PU Transmission Round Belt High-Performance Urethane Belting Orange for Conveyor Bonding Machine Dryer

The sourcing map Round Belt is a 33-inch high-performance urethane belting designed for durability and efficiency. With a diameter of just 3mm, it boasts high tensile strength and excellent abrasion resistance, ensuring it can withstand demanding applications. Its impact resistance and anti-oil properties make it a reliable choice for various machines, providing you with peace of mind. Additionally, its chemical resistance and plasticizer-free material make it safe for diverse environments, enhancing its versatility and longevity.

What We Like
High tensile strength
Excellent abrasion resistance
Impact and chemical resistance
Easy installation and welding
Long service life
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a round belt?

Round belts are solid or hollow lengths of cylindrical material. They maintain contact with belt pulleys using friction and must be stretched or elongated to operate.

2. What are round belts used for?

Round Belts Round Belts are also commonly called O-ring belts, endless round belts or endless drive belts. They are mainly used for power transmission applications and line shaft or live roller conveyors, and powered roller conveyors. These belts are designed to stretch, so they do not need a belt tensioner.

3. What is a round belt drive?

Round Belt Drive are very flexible and can easily be used to route the drive around obstacles, drive pulleys in different orientations or be twisted to reverse drive directions. Modern round belts are made of plastics (e.g. Polyurethane) but traditional old sewing machines, for example, used round leather drive belts.

4. What are the types of belts?

There are four different types of belt:. Round belts. Round belts are generally made of rubber.V belts. V belts are arguably the most widely used belts in the industry.Flat belts. Flat belts are also used to transmit power from one shaft to another.Timing/toothed belts.

Editor's Notes

During our round belts & o-ring belt research, we found 50 round belts & o-ring belt products and shortlisted 10 quality products. We collected and analyzed 2,770 customer reviews through our big data system to write the round belts & o-ring belts list. We found that most customers choose round belts & o-ring belts with an average price of £7.14.

The round belts & o-ring belts are available for purchase. We have researched hundreds of brands and picked the top brands of round belts & o-ring belts, including sourcing map, Hilitand, Kozelo. The seller of top 1 product has received honest feedback from 20,027 consumers with an average rating of 4.8.

Written by
Harvey Wall Avatar

Harvey Wall was born and raised in Norwich. He mastered the art of tool production and finished at the prestigious Norwich University. His area of interest include cutting tools, abrasive finishing and power tools. Harvey is always looking for ways to improve the finesse of industrial tools via his myriads of researches. He also shares some of his experiences on many platforms while writing on tool products.