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BCP-R
RONWIN
HS Code: 8431390000
Role Positioning: It is the "follower" in the system, not the "leader."
Functional Core: Its main functions include supporting the weight of the conveyor belt and materials, changing the direction of the conveyor belt's movement, and increasing the wrap angle of the conveyor belt on the drive roller. Its fundamental difference from the drive roller is:
Drive Roller (Active Roller): Connected to the motor and reducer, it is the source of power, "pulling" or "pushing" the conveyor belt through friction.
Driven Roller (Idler Roller): No power, rotates passively.
Based on their position and function in the conveyor system, idler rollers can be classified into the following major categories.
Position: Installed on the upper strand of the conveyor, located in the loading zone and intermediate sections.
Function: Directly support the weight of the material and the conveyor belt, ensuring smooth operation of the belt.
Common Types:
Troughing Idlers: Typically consist of three or five rollers arranged in a trough shape to increase loading capacity and prevent material spillage.
Flat Idlers: Single straight rollers used for conveying packaged goods or in sections with lighter loads.
Impact Idlers: Installed at loading points, these rollers have rubber rings on the surface to absorb material impact and protect the conveyor belt.
Position: Installed on the lower strand of the conveyor, along the path where the belt returns to the drive roller after unloading.
Function: Support the empty return belt.
Common Types: Usually flat idlers. Sometimes V-shaped or reverse V-shaped idlers are used to assist in belt training and prevent misalignment.
Position: Installed at the head, tail, tensioning device, or any location where a change in belt direction is required.
Function: Enable the conveyor belt to turn 180°, 90°, or at other angles.
Characteristics: Typically larger in size and consist of a complete drum rather than a set of multiple small rollers. The tail pulley is the most typical type of bend idler roller, transitioning the belt from the return state to the carrying state.
Position: Usually installed near the drive roller, pressing against the carrying side of the conveyor belt.
Function: Increase the wrap angle and friction between the conveyor belt and the drive roller, preventing slippage and ensuring effective power transmission.
A typical idler roller generally consists of the following components.
Roller Body: The main part of the roller. Common materials include:
Steel Pipe: The most commonly used material, offering low cost and good strength.
PVC/Plastic: Corrosion-resistant and lightweight, often used in industries with hygiene or anti-corrosion requirements, such as food and chemical sectors.
Stainless Steel: Provides high corrosion resistance and meets stringent hygiene standards, making it suitable for industries like food and pharmaceuticals.
Shaft: Typically made of carbon steel, it runs through the center of the roller body and serves as the core load-bearing component.
Bearings: Installed at both ends of the shaft to ensure smooth and flexible rotation of the roller. Common types include deep groove ball bearings and needle roller bearings. Sealing performance is critical to prevent the ingress of dust and moisture.
Seals: Protect the bearings by preventing lubricant leakage and the entry of contaminants, significantly extending the roller's service life.
End Caps/Circlips: Secure the position of the bearings and shaft.
Although idler rollers are passive components, their condition directly impacts the operation of the entire conveyor system.
1. Primary Source of Operating Resistance: Approximately 60%-70% of a conveyor's operating resistance comes from the rotational resistance of idler rolls. Therefore, high-quality and smoothly rotating idler rolls can significantly reduce energy consumption.
2. Conveyor Belt Lifespan.
Seized or "Dead" Rolls: These can cause severe friction with the conveyor belt, rapidly wearing down the belt cover rubber and even posing a fire risk.
Misalignment/Tracking Issues: These can lead to edge wear and tearing of the conveyor belt.
3. Stability of Material Conveying: The spacing and flexibility of carrying idler rolls directly affect the smooth transportation of materials, preventing spillage and vibration.
4. Noise Source: Damaged bearings or insufficiently lubricated idler rolls can generate significant noise.
Load: Select the roller diameter, shaft diameter, and bearing type based on the weight and density of the material.
Standard | Size Range | Note | ||||
| Tube Dia. (D) | Tube Wall (t) | Shaft Dia. (d1) | Bearing Model No. | Drum (D1) | W | |
| Φ51 | 3.0 | Φ20 | 6204 | / | 450～1300 | |
| Φ59 | 6.0 | Φ25 | 6205 | Φ58 | 70～1300 | |
| Φ69 | 4.5 | Φ30 | 6206 | Φ68 | 70～1300 | |
| Φ75 | 4.5 | Φ25/Φ30 | 6205/6208 | Φ74 | 70～1300 | |
| Φ79 | 4.5 | Φ25/Φ30 | 6205/6206 | Φ77.6 | 70～1300 | |
| Φ87 | 6.0 | Φ25/Φ35 | 6205/6307 | Φ85.6 | 70～1300 | |
| Φ100 | 6.0 | Φ30/Φ40 | 6306/6308 | Φ98 | 70～1800 | |
| Φ112 | 6.0 | Φ30/Φ35 | 6306/6307 | Φ110 | 70～1800 | |
| Φ119 | 6.0 | Φ30/Φ40 | 6306/6408 | Φ117 | 70～1800 | |
| Φ87 | 4.5 | Φ30 | 6206 | Φ85.6 | 70～1300 | steel polyvee pulley |
Environment: Conditions such as moisture, high temperature, corrosion, or food-grade requirements determine the material and sealing type.
Conveyor Belt Speed: High-speed environments require better dynamic balance and higher-quality bearings.
Installation Method: Clarify whether the roller is used for carrying, return, or redirection purposes.
Regular Inspections: Listen for unusual noises and check for rollers that are not rotating.
Timely Replacement: Replace damaged, seized, or inflexible driven rollers immediately upon detection.
Cleanliness Maintenance: Prevent material buildup at both ends of the rollers to ensure smooth rotation.
Longwei Automation is committed to giving you standardized, serialized high strength, high quality belt conveyor pulley in addition to its high strength welding and precise processing technologies. You can count on us to offer a one-stop shop for carrying idler, head and tail, driven, bend, snub, and takeup pulley solutions.
Role Positioning: It is the "follower" in the system, not the "leader."
Functional Core: Its main functions include supporting the weight of the conveyor belt and materials, changing the direction of the conveyor belt's movement, and increasing the wrap angle of the conveyor belt on the drive roller. Its fundamental difference from the drive roller is:
Drive Roller (Active Roller): Connected to the motor and reducer, it is the source of power, "pulling" or "pushing" the conveyor belt through friction.
Driven Roller (Idler Roller): No power, rotates passively.
Based on their position and function in the conveyor system, idler rollers can be classified into the following major categories.
Position: Installed on the upper strand of the conveyor, located in the loading zone and intermediate sections.
Function: Directly support the weight of the material and the conveyor belt, ensuring smooth operation of the belt.
Common Types:
Troughing Idlers: Typically consist of three or five rollers arranged in a trough shape to increase loading capacity and prevent material spillage.
Flat Idlers: Single straight rollers used for conveying packaged goods or in sections with lighter loads.
Impact Idlers: Installed at loading points, these rollers have rubber rings on the surface to absorb material impact and protect the conveyor belt.
Position: Installed on the lower strand of the conveyor, along the path where the belt returns to the drive roller after unloading.
Function: Support the empty return belt.
Common Types: Usually flat idlers. Sometimes V-shaped or reverse V-shaped idlers are used to assist in belt training and prevent misalignment.
Position: Installed at the head, tail, tensioning device, or any location where a change in belt direction is required.
Function: Enable the conveyor belt to turn 180°, 90°, or at other angles.
Characteristics: Typically larger in size and consist of a complete drum rather than a set of multiple small rollers. The tail pulley is the most typical type of bend idler roller, transitioning the belt from the return state to the carrying state.
Position: Usually installed near the drive roller, pressing against the carrying side of the conveyor belt.
Function: Increase the wrap angle and friction between the conveyor belt and the drive roller, preventing slippage and ensuring effective power transmission.
A typical idler roller generally consists of the following components.
Roller Body: The main part of the roller. Common materials include:
Steel Pipe: The most commonly used material, offering low cost and good strength.
PVC/Plastic: Corrosion-resistant and lightweight, often used in industries with hygiene or anti-corrosion requirements, such as food and chemical sectors.
Stainless Steel: Provides high corrosion resistance and meets stringent hygiene standards, making it suitable for industries like food and pharmaceuticals.
Shaft: Typically made of carbon steel, it runs through the center of the roller body and serves as the core load-bearing component.
Bearings: Installed at both ends of the shaft to ensure smooth and flexible rotation of the roller. Common types include deep groove ball bearings and needle roller bearings. Sealing performance is critical to prevent the ingress of dust and moisture.
Seals: Protect the bearings by preventing lubricant leakage and the entry of contaminants, significantly extending the roller's service life.
End Caps/Circlips: Secure the position of the bearings and shaft.
Although idler rollers are passive components, their condition directly impacts the operation of the entire conveyor system.
1. Primary Source of Operating Resistance: Approximately 60%-70% of a conveyor's operating resistance comes from the rotational resistance of idler rolls. Therefore, high-quality and smoothly rotating idler rolls can significantly reduce energy consumption.
2. Conveyor Belt Lifespan.
Seized or "Dead" Rolls: These can cause severe friction with the conveyor belt, rapidly wearing down the belt cover rubber and even posing a fire risk.
Misalignment/Tracking Issues: These can lead to edge wear and tearing of the conveyor belt.
3. Stability of Material Conveying: The spacing and flexibility of carrying idler rolls directly affect the smooth transportation of materials, preventing spillage and vibration.
4. Noise Source: Damaged bearings or insufficiently lubricated idler rolls can generate significant noise.
Load: Select the roller diameter, shaft diameter, and bearing type based on the weight and density of the material.
Standard | Size Range | Note | ||||
| Tube Dia. (D) | Tube Wall (t) | Shaft Dia. (d1) | Bearing Model No. | Drum (D1) | W | |
| Φ51 | 3.0 | Φ20 | 6204 | / | 450～1300 | |
| Φ59 | 6.0 | Φ25 | 6205 | Φ58 | 70～1300 | |
| Φ69 | 4.5 | Φ30 | 6206 | Φ68 | 70～1300 | |
| Φ75 | 4.5 | Φ25/Φ30 | 6205/6208 | Φ74 | 70～1300 | |
| Φ79 | 4.5 | Φ25/Φ30 | 6205/6206 | Φ77.6 | 70～1300 | |
| Φ87 | 6.0 | Φ25/Φ35 | 6205/6307 | Φ85.6 | 70～1300 | |
| Φ100 | 6.0 | Φ30/Φ40 | 6306/6308 | Φ98 | 70～1800 | |
| Φ112 | 6.0 | Φ30/Φ35 | 6306/6307 | Φ110 | 70～1800 | |
| Φ119 | 6.0 | Φ30/Φ40 | 6306/6408 | Φ117 | 70～1800 | |
| Φ87 | 4.5 | Φ30 | 6206 | Φ85.6 | 70～1300 | steel polyvee pulley |
Environment: Conditions such as moisture, high temperature, corrosion, or food-grade requirements determine the material and sealing type.
Conveyor Belt Speed: High-speed environments require better dynamic balance and higher-quality bearings.
Installation Method: Clarify whether the roller is used for carrying, return, or redirection purposes.
Regular Inspections: Listen for unusual noises and check for rollers that are not rotating.
Timely Replacement: Replace damaged, seized, or inflexible driven rollers immediately upon detection.
Cleanliness Maintenance: Prevent material buildup at both ends of the rollers to ensure smooth rotation.
Longwei Automation is committed to giving you standardized, serialized high strength, high quality belt conveyor pulley in addition to its high strength welding and precise processing technologies. You can count on us to offer a one-stop shop for carrying idler, head and tail, driven, bend, snub, and takeup pulley solutions.
