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Rubber Disc Return Idler
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PRODUCT INTRODUCTION
Rubber disc return idlers are an essential component of conveyor systems. Their primary function is to support and guide the conveyor belt on its return path. When the conveyor belt has transported materials to the discharge point, it needs to return to the loading area. The Conveyor Rubber Disc Return Rollers ensure that the belt travels smoothly and is properly supported during this return journey.
Rubber disc return idlers for conveyor also help to prevent the belt from sagging or coming into contact with other parts of the conveyor structure on the return side. By maintaining the correct belt path, they reduce the risk of belt damage such as abrasion, which can occur if the belt rubs against sharp edges or other hard surfaces during the return process.
WHERE IS IT USED
Rubber disc return idlers are widely used in various industries. In mining operations, they are used in conveyor systems that transport ores and minerals. The ability to handle the heavy loads and the shock - absorbing characteristics make them suitable for this environment. In the construction industry, they are used in conveyor systems for transporting building materials such as sand, gravel, and cement.
PRODUCT DESIGN

The rubber disc return idlers for conveyor are designed to provide optimal support for the conveyor belt during its return journey. The rubber discs need to conform to the shape of the belt to ensure even contact and prevent the belt from sagging. The diameter and thickness of the rubber discs are carefully chosen to match the characteristics of the conveyor belt.
The elastic properties of the rubber discs are a key design consideration. The rubber material is selected to have an appropriate modulus of elasticity to effectively absorb shocks and vibrations. When the conveyor belt experiences sudden impacts or vibrations during operation (such as when lumpy materials are being transported), the rubber discs deform and then recover, dissipating the energy of the impact. The design of the rubber disc structure, including its shape and the way the discs are mounted on the axle, affects its shock - absorbing ability.
The rubber discs are designed to have high durability to withstand the wear and tear caused by the continuous contact with the conveyor belt and the operating environment. The rubber material is selected for its abrasion resistance, ozone resistance, and resistance to other environmental factors such as chemicals and temperature variations. For example, in a conveyor system used in a chemical - processing plant, the rubber discs may need to be made of a rubber compound that can resist the corrosive effects of chemicals. The axle and frame of the idlers are also made of materials with good strength and corrosion resistance. The frame is usually made of steel or aluminum with appropriate surface treatments (such as galvanizing or painting) to prevent rust. The seals around the bearings are designed to prevent the ingress of dust, water, and other contaminants that could damage the bearings and reduce the idler's overall durability.
THE CONVEYOR BELT HAS THE FOLLOWING DESIGN
1 Rubber Discs: The most distinctive feature of these idlers is the rubber discs. These discs are usually made of high – quality rubber, such as natural rubber or synthetic rubber with good abrasion resistance and elasticity. The discs are mounted on a central shaft or axle. The diameter of the discs can vary depending on the specific requirements of the conveyor system, but it is typically in the range of 100 – 300 mm. The number of discs on an idler also varies; it can range from a few (say, 3 – 5) for smaller conveyor belts to a dozen or more for wider and longer belts. The rubber discs provide a flexible support surface for the conveyor belt. Their elasticity allows them to conform to the shape of the belt and absorb some of the shocks and vibrations that the belt may experience during operation.
2 Axle and Bearings: The axle is a crucial part of the rubber disc return idler. It provides the central support for the rubber discs and enables them to rotate. The axle is usually made of steel to ensure strength and rigidity. Bearings are installed on the axle to allow for smooth rotation of the discs. High – quality ball bearings or roller bearings are commonly used. The bearings are sealed to prevent the ingress of dust and water, which could otherwise damage the bearings and affect the performance of the idlers.
3 Frame: The frame holds the axle and rubber discs in place and attaches the idler to the conveyor structure. The frame is typically made of metal, such as steel or aluminum, depending on the application. It has a shape and design that allows for easy installation and adjustment. In some cases, the frame may have adjustable features to change the height or angle of the idler to better align with the conveyor belt’s return path.
TABLE OF TECHNICAL CHARACTERISTICS
| BELT WIDTH | MODEL | ROLLER | BEARING No. |
E | A | H | H1 | P | Q | d | MASS (Kg) | ||
| MODEL | D | L | |||||||||||
| 500 | -50-89-204 | SLR-89-204-600 | 89 | 600 | 204 | 792 | 740 | 55.5 | 100 | 145 | 90 | M12 | 10.4 |
| 650 | -065-89-204 | SLR-89-204-750 | 89 | 750 | 204 | 942 | 890 | 55.5 | 100 | 145 | 90 | M12 | 12 |
| -065-89-205 | SLR-89-205-750 | 205 | 13.9 | ||||||||||
| -065-108-204 | SLR-108-204-750 | 108 | 204 | 55.5 | 109.5 | 13.7 | |||||||
| -065-108-205 | SLR-108-205-750 | 205 | 16.7 | ||||||||||
| -065-108-305 | SLR-108-305-750 | 305 | 14.9 | ||||||||||
| 800 | -080-89-204 | SLR-89-204-950 | 89 | 950 | 204 | 1142 | 1090 | 100 | 144.5 | 145 | 90 | M12 | 15 |
| -080-89-205 | SLR-89-205-950 | 205 | 17.4 | ||||||||||
| -080-108-204 | SLR-108-204-950 | 108 | 204 | 100 | 154 | 17.2 | |||||||
| -080-108-205 | SLR-108-205-950 | 205 | 21 | ||||||||||
| -080-108-305 | SLR-108-305-950 | 133 | 305 | 18.7 | |||||||||
| -080-133-205 | SLR-133-205-950 | 205 | 100 | 166.5 | 19.4 | ||||||||
| -080-133-305 | SLR-133-305-950 | 305 | 19.9 | ||||||||||
| 1000 | -100-108-205 | SLR-108-205-1150 | 108 | 1150 | 205 | 1342 | 1290 | 110 | 164 | 150 | 90 | M16 | 25.2 |
| -100-108-305 | SLR-108-305-1150 | 305 | 22.3 | ||||||||||
| -100-108-206 | SLR-108-206-1150 | 206 | 24.3 | ||||||||||
| -100-108-306 | SLR-108-306-1150 | 306 | 31.7 | ||||||||||
| -100-133-205 | SLR-133-205-1150 | 133 | 205 | 110 | 176.5 | 23.1 | |||||||
| -100-133-305 | SLR-133-305-1150 | 305 | 23.6 | ||||||||||
| -100-133-206 | SLR-133-206-1150 | 206 | 25.6 | ||||||||||
| -100-133-306 | SLR-133-306-1150 | 306 | 40.7 | ||||||||||
| -100-159-205 | SLR-159-205-1150 | 159 | 205 | 110 | 189.5 | 31.5 | |||||||
| -100-159-305 | SLR-159-305-1150 | 305 | 31.9 | ||||||||||
| -100-159-206 | SLR-159-206-1150 | 206 | 33.9 | ||||||||||
| -100-159-306 | SLR-159-306-1150 | 306 | 34.3 | ||||||||||
| 1200 | -120-108-205 | SLR-108-205-1400 | 108 | 1400 | 205 | 1592 | 1540 | 120 | 174 | 150 | 90 | M16 | 29.4 |
| -120-108-305 | SLR-108-305-1400 | 305 | 26.2 | ||||||||||
| -120-108-206 | SLR-108-206-1400 | 206 | 28.6 | ||||||||||
| -120-108-306 | SLR-108-306-1400 | 306 | 37.5 | ||||||||||
| -120-133-205 | SLR-133-205-1400 | 133 | 205 | 120 | 186.5 | 27.7 | |||||||
| -120-133-305 | SLR-133-305-1400 | 305 | 28.2 | ||||||||||
| -120-133-206 | SLR-133-206-1400 | 206 | 30.6 | ||||||||||
| -120-133-306 | SLR-133-306-1400 | 306 | 49 | ||||||||||
| -120-159-205 | SLR-159-205-1400 | 159 | 205 | 120 | 199.5 | 37.9 | |||||||
| -120-159-305 | SLR-159-305-1400 | 305 | 38.4 | ||||||||||
| -120-159-206 | SLR-159-206-1400 | 206 | 40.8 | ||||||||||
| -120-159-306 | SLR-159-306-1400 | 306 | 41.1 | ||||||||||
| 1400 | -140-108-205 | SLR-108-205-1600 | 108 | 1600 | 205 | 1800 | 1740 | 130 | 184 | 150 | 90 | M16 | 33.2 |
| -140-108-305 | SLR-108-305-1600 | 305 | 29.1 | ||||||||||
| -140-108-206 | SLR-108-206-1600 | 206 | 31.9 | ||||||||||
| -140-108-306 | SLR-108-306-1600 | 306 | 41.9 | ||||||||||
| -140-133-205 | SLR-133-205-1600 | 133 | 205 | 130 | 196.5 | 30.4 | |||||||
| -140-133-305 | SLR-133-305-1600 | 305 | 30.9 | ||||||||||
| -140-133-206 | SLR-133-206-1600 | 206 | 33.6 | ||||||||||
| -140-133-306 | SLR-133-306-1600 | 306 | 54.7 | ||||||||||
| -140-159-205 | SLR-159-205-1600 | 159 | 205 | 130 | 209.5 | 41.9 | |||||||
| -140-159-305 | SLR-159-305-1600 | 305 | 42.4 | ||||||||||
| -120-159-206 | SLR-159-206-1600 | 206 | 45.1 | ||||||||||
| -120-159-306 | SLR-159-306-1600 | 306 | 45.5 | ||||||||||
FEATURES AND BENEFITS
1. Utilizing automatic welding robots for welding. Ensuring high stability, efficiency, accurate welding position and angle, as well as consistent welding quality and appearance.
2. Rollers automatic production line. A $2.8M investment in 2024 added a complete set of rollers automatic production line for extreme consistency and fast lead times.
3. Enhanced bearing seal. Revamped and enhanced standard idler seal for water-proof bearing protection.
4. The rollers are made of high-precision special steel pipes with minimal radial runout and good balance.
INSTALLATION AND COMMISSIONING FROM PROFESSIONALS
JUXIN also provides services for the installation and commissioning of conveyor equipment. Our team of experienced specialists will efficiently set up the operation of the conveyor line at your enterprise in a timely manner. We also offer installation supervision, where our specialist will visit your facility after equipment delivery to oversee the installation and launch process carried out by your personnel.

PRE-SALES:EQUIPMENT SELECTION
Assisting customers in selecting the most suitable belt conveyor for their specific needs and requirements. Additionally, we offer technical advice and guidance to facilitate informed decision-making on bulk material handling equipment. Furthermore, we can provide the following information:
• Customized solutions and design services
• Delivery lead time
• Equipment operation and maintenance
• Environmental and safety measures
• Integration with existing equipment

AFTER-SALES: 24/7 HOTLINE SUPPORT
We have established a hotline (+86 18622502901) to promptly address customer inquiries, feedback, and complaints. Our support is available 24 hours a day, seven days a week. Generally, our engineers will work remotely to resolve your issues.
- We provide training for customers on effective and safe operation and maintenance of the belt conveyor.
- We offer technical support and troubleshooting assistance to address any operational issues or concerns with the belt conveyor.
- We supply spare parts and components as needed, ensuring prompt delivery and compatibility with the specific belt conveyor model.
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