China Standard Heavy Duty Conveyor Roller, Conveyor Idler, Conveyor Frame/Brackets, Conveyor Pulleys for Bulk Material Mine pulley bearing

Product Description

Head Drive Pulley, Return Pulley,Bend Pulley, Snub Pulley,Tensioning Pulley, Take up Pulley can be provided. We are designing and manufacturing pulleys, using materials of the highest quality in a production process employing advanced technology. This together with the application of the Quality Assurance system certifi ed to ISO 9001:2015, contributes to the production of high quality products offering dependable, long life performance in the field and appreciably reducing maintenance cost. Each our conveyor pulley is individually computer designed to meet the client’s requirements.

Product Name

Belt Conveyor Pulley Drum

Type

Drive Pulley, Bend Pulley,Snub Pulley,Take Up Pulley

Length

200mm-2500mm

Materials

Carbon steel, Stainless steel, Rubber

Surface Treatment

Smooth, CHINAMFG grooved lagging, Herringbone lagging, Ceramic lagging

Welding

Submerged Arc Welding

Bearing

Famous brands

Structure

Tube,shaft,self-aligning bearing,bearing seat/house,hub, locking bushing,end disc

Drive Pulley Introduction:

1. Head/Drive Pulley is located at the discharge terminus of the conveyor. 
2. Drive pulley provides the driving force for the conveyor. In order to increase pulley life and traction, it often has a larger diameter than other pulleys.
3. We can supply pulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. Different patterns of grooving such as herringbone or CHINAMFG can be provided to increase tractive friction under dirty or wet conditions. CHINAMFG grooves have the advantage of being installed in any orientation, regardless of belt direction.

Specification of Drive Head Pulley Drum

Belt Width 500-2800mm (19-110 inch)
Pulley Length 500-3500mm (19-138 inch)
Diameter 200-1800mm (8-70 inch)
Standard ISO9001:2008, CEMA, DIN, TUV, JIS, AS/NS, etc.
Working Life More than 30,000 hours.
Surface Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc.
Main Material Carbon Steel
Length of conveyor drive pulley depends on the width of conveyor Belt. You can get drive pulleys with hot & cold vulcanized rubber lagging, plain or grooved, as required by client.

Bend Pulley Introduction:

1. The bend pulley  is used for changing the direction of the belt.
2. The bend pulley is usually installed at the tail part or the vertical take-up equipment part when the belt direction need to 180°bending. It will be installed above the take-up equipment part while 90°bending.
3. The pulley, which is used for extending the contact surface, is usually used for below or equal to 45 degree bending.
4. The surface treatment of the bend pulley can be smooth steel and flat rubber lagging. 

Specification of Bend Pulley:

Belt Width 500-2800mm(19-110 inch)
Pulley Length 500-3200mm(19-126 inch)
Diameter 200-1800mm(8-70 inch)
Standard ISO9001:2008, CEMA, DIN, TUV, etc.
Working Life More than 30,000 hours.
Surface Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc.
Main Material Carbon Steel
Length of conveyor bend pulley depends on the width of conveyor Belt. You can get drive pulleys with hot vulcanized rubber lagging, plain or grooved, as required by client.

Snub Pulley
Snub pulley is used to achieve higher angle of wrap on the drive pulley thereby increasing the traction. It also reduces the belt tension maximizing the life of the conveyor component.It is mounted close to the drive pulley on the return side of the belt.

Specification of Snub Pulley:

Items Content
Belt Width 500-2800mm (19-110 inch)
Pulley Length 500-3200mm (19-126 inch)
Diameter 200-1800mm (8-70 inch)
Standard ISO9001:2008, CEMA, DIN, TUV, etc.
Working Life More than 30,000 hours.
Surface Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc.
Main Material Carbon Steel
Length of conveyor Snubpulley depends on the width of conveyor Belt. You can get Snubpulleys with hot vulcanized rubber lagging, plain or grooved, as required by client.

Take Up Pulley 
The take up pulley will ensure adequate tension of the belt leaving the drive pulley so as to avoid any slippage of the belt, ensure proper belt tension at the loading and other points along the conveyor, compensate for changes in belt length due to elongation, and provide extra length of belt when necessary for splicing purpose.

Specification of take up pulley drum:

Belt Width 500-2800mm(19-110 inch)
Pulley Length 500-3200mm(19-126 inch)
Diameter 200-1800mm(8-70 inch)
Standard ISO9001:2008, CEMA, DIN, TUV, etc.
Working Life More than 30,000 hours.
Surface Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc.
Main Material Carbon Steel

The components of a pulley drum include the following:

Drum or Shell The drum is the portion of the pulley in direct contact with the belt. The shell is fabricated from either a rolled sheet of steel or from hollow steel tubing.The shell has a specific ‘face’ width and diameter which is determined by the width of the belting and the type and rating of the belt to be used on the conveyor.
Diaphragm Plates The diaphragm or end plates of a pulley are circular discs which are fabricated from thick steel plate and which are welded into the shell at each end, to strengthen the drum.The end plates are bored in their centre to accommodate the pulley shaft and the hubs for the pulley locking elements.
Shaft The shaft is designed to accommodate all the applied forces from the belt and / or the drive unit, with minimum deflection.The shaft is located and locked to the hubs of the end discs by means of a locking elements.
The shaft is supported on both ends by bearings which are housed in plummer blocks, to support the shaft and pulley assembly on the conveyor structure.
Shafts often comprise different diameters along their length due to the bending moments and resultant deflection limitations. The diameter of the shaft at the landings for the bearings may be smaller to satisfy the necessary bearing diameter which is more cost-effective (smaller).
Similarly in the case of a drive shaft, the drive attachment, may be different to the other diameters along the shaft and hence pulley shafts are often stepped.
Locking Elements These are high-precision manufactured items which are fitted over the shaft and into the pulley hubs. The locking elements attach the pulley firmly to the shaft via the end plates.Locking elements work on the friction-grip principle whereby the element is able to be fastened to the shaft and hub simultaneously and concentrically, by tightening a series of screws around the locking element.
Hubs The hubs are fabricated and machined housings which are welded into the end plates. The hubs are sized according to the size of the pulley, the diameter of the shaft and the size of the locking element which is required for the specific duty.
Lagging It is sometimes necessary or desirable to improve the friction between the conveyor belt and the pulley in order to improve the torque that can be transmitted through a drive pulley.Improved traction over a pulley also assists with the training of the belt.
In such cases pulley drum surfaces are ‘lagged’ or covered in a rubberized material. This cover is usually 8 mm to 12 mm thick and can be plain or have a grooved pattern. The rubber lagging is vulcanized to the pulley shell to ensure that it remains attached under adverse operating conditions.
Bearing Assemblies Bearings support the rotating shaft and hence the pulley. The bearings are housed in ‘plummer blocks’ which enable the mass of the pulley assembly plus the belt tension forces to be transmitted to the pulley supporting structure.Plummer blocks are often bolted to ‘sole plates’ which are welded to the structure.
The sole plates incorporate jacking screws to enable the pulley to be correctly and relatively easily aligned.

Several types of bearing housing, seals and end disc:

Pulley Drum Warehouse and package:

Pulley Drums:

Our Products: Belt Conveyors, Pulley Drum, Conveyor Rollers Idler,  etc.

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Material: Stainless Steel
Surface Treatment: Polishing
Motor Type: Frequency Control Motor
Installation: Horizontal
Carrying Type: Light, Medium, Heavy
Light Connection Mode: The Shaft and Hub Are Single-Width Plate Welded Cy
Samples:
US$ 300/Piece
1 Piece(Min.Order)

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Customization:
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heavy duty pulley

Can heavy-duty pulleys withstand extreme environmental conditions?

Heavy-duty pulleys are designed to withstand demanding operating conditions, including extreme environmental conditions. These pulleys are engineered with robust materials and construction to ensure their durability and reliability in challenging environments. Here’s a detailed explanation of how heavy-duty pulleys can withstand extreme environmental conditions:

  • Material Selection: Heavy-duty pulleys are typically manufactured using high-quality materials that offer excellent strength, corrosion resistance, and durability. Common materials used for heavy-duty pulleys include steel alloys, cast iron, or specialized alloys designed for specific environmental conditions. These materials provide the necessary mechanical properties to withstand extreme temperatures, moisture, and other environmental factors.
  • Corrosion Resistance: Heavy-duty pulleys are often coated or treated to enhance their corrosion resistance. Coatings such as galvanization, epoxy, or specialized corrosion-resistant paints are applied to protect the pulleys from moisture, chemicals, or other corrosive elements present in the environment. This corrosion resistance helps maintain the structural integrity of the pulleys, even in harsh and corrosive environments.
  • Sealed Bearings: The bearings used in heavy-duty pulleys are often designed to be sealed or equipped with protective seals to prevent the ingress of contaminants. Sealed bearings provide an additional layer of protection against dust, dirt, moisture, and other environmental elements that could compromise the performance and lifespan of the pulleys. This feature helps ensure smooth rotation and reduces the need for frequent maintenance or replacements.
  • Temperature Resistance: Heavy-duty pulleys are engineered to withstand a wide range of temperatures, including extreme heat or cold. The materials and design of the pulleys are selected to maintain their structural integrity and functionality under temperature variations. This allows the pulleys to operate reliably in environments such as foundries, steel mills, or cold storage facilities where extreme temperatures are present.
  • Protection Against Contaminants: Heavy-duty pulleys are designed to minimize the entry of contaminants such as dirt, dust, or debris that could affect their performance or cause premature wear. Pulley designs may include features such as covers, guards, or specialized seals to protect the internal components from environmental contaminants. This protection helps maintain the efficiency and longevity of the pulleys, even in environments with high levels of airborne particles.
  • Extreme Load Capacities: Heavy-duty pulleys are specifically engineered to handle heavy loads encountered in various industries. The design and construction of these pulleys incorporate safety factors to ensure that they can withstand the extreme forces exerted during lifting or material handling operations. This structural integrity allows heavy-duty pulleys to maintain their performance and reliability, even when subjected to high load capacities in challenging environmental conditions.

While heavy-duty pulleys are designed to withstand extreme environmental conditions, it is important to note that their performance and longevity can still be influenced by the severity and duration of the environmental factors. Regular inspections, maintenance, and adherence to manufacturer guidelines are essential to ensure optimal performance and longevity of heavy-duty pulleys, particularly in extreme environments. By choosing the appropriate materials, incorporating protective features, and following recommended maintenance practices, heavy-duty pulleys can reliably operate in a wide range of extreme environmental conditions.

heavy duty pulley

Can heavy-duty pulleys be part of large-scale manufacturing and assembly lines?

Yes, heavy-duty pulleys can indeed be a crucial component of large-scale manufacturing and assembly lines. These robust pulleys are specifically designed to meet the demanding requirements of industrial settings, where they play a vital role in facilitating the movement and handling of materials, components, and products. Here’s a detailed explanation of how heavy-duty pulleys can be part of large-scale manufacturing and assembly lines:

  • Conveyor Systems: Heavy-duty pulleys are commonly used in conveyor systems, which are fundamental to large-scale manufacturing and assembly lines. Pulleys serve as the driving force for conveyor belts, facilitating the smooth and continuous transportation of materials or products along the production line. These pulleys provide the necessary torque and traction to move heavy loads efficiently, ensuring the timely and reliable transfer of goods between different stages of the manufacturing or assembly process.
  • Material Handling: Heavy-duty pulleys play a critical role in material handling applications within large-scale manufacturing and assembly lines. They are incorporated into various lifting and moving systems, such as overhead cranes, hoists, or gantries. Pulleys help guide and support cables, ropes, or chains used for lifting and positioning heavy materials or components. By providing the necessary mechanical advantage, heavy-duty pulleys enable precise and controlled material handling, enhancing the efficiency and safety of manufacturing and assembly operations.
  • Assembly Line Transfers: Heavy-duty pulleys can be utilized for transferring components or products between different workstations along an assembly line. They are integrated into transfer systems that allow for smooth and controlled movement of items from one station to another. Pulleys assist in guiding, aligning, and ensuring the proper positioning of the transferred components or products. By incorporating heavy-duty pulleys into assembly line transfers, manufacturers can optimize workflow, minimize production bottlenecks, and improve overall productivity.
  • Tensioning and Tracking: Heavy-duty pulleys play a crucial role in maintaining proper tension and tracking of belts or ropes within manufacturing and assembly lines. They are used in tensioning systems to ensure optimal belt or rope tension, preventing slippage or misalignment. Pulleys with specialized tracking features help keep conveyor belts or ropes aligned and centered, minimizing the risk of material spillage, jams, or disruptions. By incorporating heavy-duty pulleys for tensioning and tracking, large-scale manufacturing and assembly lines can achieve consistent and reliable operation.
  • Automated Systems: Heavy-duty pulleys are often integrated into automated systems within large-scale manufacturing and assembly lines. These systems utilize pulleys as part of robotic arms, automated guided vehicles (AGVs), or other robotic mechanisms. Pulleys provide the necessary motion control and power transmission for the precise movement of robotic components, enhancing the speed, accuracy, and efficiency of automated processes. By incorporating heavy-duty pulleys into automated systems, manufacturers can achieve higher production rates and improved product quality.
  • Line Shaft Drives: Heavy-duty pulleys can be part of line shaft drives in large-scale manufacturing and assembly lines. Line shaft drives use a series of pulleys and shafts to transmit power throughout the production line. They enable multiple workstations to be powered by a single motor, reducing energy consumption and maintenance costs. Heavy-duty pulleys within line shaft drives contribute to the reliable distribution of power, ensuring synchronized operation and optimal performance of the manufacturing and assembly line.

In summary, heavy-duty pulleys have a significant role to play in large-scale manufacturing and assembly lines. They are utilized in conveyor systems, material handling applications, assembly line transfers, tensioning and tracking systems, automated systems, and line shaft drives. By providing reliable power transmission, controlled movement, and precise positioning, heavy-duty pulleys contribute to the efficiency, productivity, and overall success of large-scale manufacturing and assembly operations.

heavy duty pulley

How does the size and design of a heavy-duty pulley impact its load-bearing capacity?

The size and design of a heavy-duty pulley play a significant role in determining its load-bearing capacity. These factors directly influence the pulley’s ability to support and distribute the weight of heavy loads effectively. Here’s a detailed explanation of how the size and design of a heavy-duty pulley impact its load-bearing capacity:

Size:

The size of a heavy-duty pulley refers to the diameter of its sheave or wheel. In general, larger pulleys have a higher load-bearing capacity compared to smaller pulleys. This is because larger pulleys provide a larger contact area for the cable or rope, distributing the load over a greater surface area. The larger contact area reduces stress concentration on the cable or rope, minimizing the risk of premature wear or failure. Additionally, larger pulleys allow for a more gradual bend radius, which helps prevent excessive bending and fatigue of the cable or rope. Thus, a larger-sized pulley can handle heavier loads more effectively and safely.

Design:

The design of a heavy-duty pulley encompasses various aspects that impact its load-bearing capacity:

  • Sheave Diameter: The diameter of the sheave directly affects the mechanical advantage of the pulley system. A larger sheave diameter increases the mechanical advantage, allowing for easier lifting of heavy loads. This means that a heavy-duty pulley with a larger sheave diameter can handle heavier loads more efficiently.
  • Hub Construction: The hub of the pulley, which connects the sheave to the axle or shaft, should be designed to withstand the stresses induced by heavy loads. Heavy-duty pulleys often have reinforced hubs that can handle higher loads without deformation or failure. The hub design should provide sufficient strength and rigidity to ensure the stability and integrity of the pulley under load.
  • Bearing System: The bearing system of a heavy-duty pulley is crucial for smooth rotation and load distribution. High-quality bearings, such as sealed or shielded ball bearings, are commonly used in heavy-duty pulleys to minimize friction and ensure reliable operation under heavy loads. The bearing system should be designed to handle the anticipated loads and provide long-term durability and performance.
  • Material Strength: Heavy-duty pulleys are typically made from strong and durable materials such as steel or cast iron. The material strength is a critical factor in determining the load-bearing capacity of the pulley. A robust material construction ensures that the pulley can withstand the high loads without deformation or failure. Additionally, the material should have good resistance to wear, corrosion, and other environmental factors that may affect the pulley’s performance and longevity.
  • Structural Reinforcement: Heavy-duty pulleys often incorporate structural reinforcements to enhance their load-bearing capacity. This may include features such as thicker rims, additional ribs, or gussets that provide increased strength and rigidity. The structural reinforcement helps to distribute the load more evenly throughout the pulley, reducing stress concentration and improving overall load-bearing capacity.

In summary, the size and design of a heavy-duty pulley have a direct impact on its load-bearing capacity. Larger pulleys with larger sheave diameters provide a larger contact area and more gradual bend radius, allowing them to handle heavier loads more effectively. The design elements, such as hub construction, bearing system, material strength, and structural reinforcement, further contribute to the pulley’s load-bearing capacity by ensuring stability, durability, and even load distribution. When selecting a heavy-duty pulley, it is crucial to consider its size and design features to ensure it can handle the intended high-load tasks safely and efficiently.

China Standard Heavy Duty Conveyor Roller, Conveyor Idler, Conveyor Frame/Brackets, Conveyor Pulleys for Bulk Material Mine   pulley bearing	China Standard Heavy Duty Conveyor Roller, Conveyor Idler, Conveyor Frame/Brackets, Conveyor Pulleys for Bulk Material Mine   pulley bearing
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