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December 11, 2019

Metal conveyor belt pulleys are critical to the look of any automated conveyor belt system. They become the driving pressure behind the motion of the belt, producing torque and rate. In very general terms it can be said that pulleys are categorized as friction drive or timing pulleys (type I and II). Precision is the name of the overall game when it comes to pulleys. A metal belt is as good and specific as the pulleys. Most pulleys suggested by Ever-power are constructed with anodized aluminum (hard coat) with the proper friction coefficient to drive the steel belt. Stainless steel may also be used but it is costly and heavy, although it might be indicated in certain applications where extra hardness is necessary. If your application takes a lighter pulley, the experts at Ever-power will help you choose the best material.
Selecting the right pulley size and construction can have a significant effect on the lifespan and performance of a conveyor belt. Ever-power engineers possess the data and experience to help you choose the correct pulley type, diameter, and composition to reduce maintenance downtime and increase product volume.
Metal Conveyor Belt Pulley Types
Ever-power designs custom metallic conveyor belt pulleys and configurations to bring maximum efficiency to one’s body. While steel conveyor belts are typically made of stainless steel, pulleys can be produced from a variety of materials, including aluminium or a variety of plastic composites. Depending on the unique needs of one’s body, the pulleys can also be fitted with custom timing attachments, relief channels, and more.
Independently Steerable Pulley
Ever-power has developed a forward thinking concept in smooth belt tracking called the ISP (independently steerable pulley), which can be utilized in the following system designs:
· Two pulley conveyor systems in which the ISP may be the idler or driven pulley
· Systems with multiple idler pulleys on a common shaft
· Systems with serpentine or additional complex belt paths
Steering smooth belts with an ISP is founded on the concept of changing tension human relationships over the width of the belt simply by adjusting the angle of the pulley in accordance with the belt.
Rather than moving the pulley shaft left/right or up/straight down by pillow prevent adjustment, the ISP fits a adjustable steering collar and sealed bearing assembly to your body of the pulley.
The steering collar is designed with either a skewed or an offset bore. When rotated, the collar changes the angle of the pulley body, resulting in controlled, bi-directional motion of the belt across the pulley face.
The ISP is exclusively available from Ever-power. It offers a simple method of steering flat steel belts. Users may combine ISP steering with the original belt tracking designs of crowning, flanging, and timing components to create a synergistic belt monitoring system which effectively and precisely steers the belt to specified tracking parameters.
Unique Characteristics and Benefits of the ISP
· Flat belts are tracked quickly by rotating the steering collar.
· ISP styles minimize downtime when changing belts on production machinery.
· ISP system is easy to use and needs simply no special tools or teaching.
· ISP simplifies the look and assembly of conveyor systems using flat belts.
· Existing idler pulleys can normally be retrofitted to an ISP without main system modifications.
· No maintenance is necessary once the belt monitoring parameters have already been established.
· It prolongs belt lifestyle by minimizing side loading when using flanges and timing pulleys.
ISP Pulley (picture and cross-section view)
Installation and Use
The ISP is mounted to the machine frame using commercially available pillow blocks. A clamp is used to prevent the shaft from turning.
The Rotated Shaft Method of ISP Flat Belt Tracking
· Is used in combination with systems having an individual pulley on the shaft.
· Is ALWAYS utilized when the pulley body can be a capped tube design.
· Is NEVER used when multiple pulleys are on a common shaft.
· Used selectively when the ISP is a steering roll in a multiple pulley program.
Protected the ISP to the shaft using the split collar and locking screw included in the ISP. Rotate the shaft and collar as a device. When the desired tracking features are obtained, avoid the shaft from rotating by securing the shaft clamp. The pulley body will at this point rotate about the bearing built into the ISP assembly. This method enables the belt to be tracked while running under tension.
Protected the ISP to the shaft using the split collar and locking screw included in the ISP. Rotate the shaft and collar as a unit. When the required tracking characteristics are obtained, avoid the shaft from rotating by securing the shaft clamp. The pulley body will at this point rotate about the bearing included in the ISP assembly. This method enables the belt to be tracked while working under tension.
The Rotated Collar Method of ISP Flat Belt Tracking
· Used to individually adjust each belt/pulley combination when there are multiple pulleys on a common shaft.
· Used when systems possess a cantilevered shafting typical of serpentine and various other complex belt path systems. It is recommended that these adjustments be made only once the belt reaches rest.
Fix the shaft via the shaft clamp, loosen the locking screw of the steering collar, and rotate the steering collar about the shaft. When the desired belt tracking characteristics are attained, secure the locking screw.
Which Design Is Right for You?
There are numerous applications because of this new product, so Ever-power designs and manufactures independently steerable pulleys to meet your requirements. Contact Ever-power to go over your queries or for style assistance.
Ever-power may be the worldwide innovator in the look and production of application-specific pulleys, metal belts, and drive tapes. Our products provide exclusive benefits for machinery found in precision positioning, timing, conveying, and automated manufacturing applications.
System Configuration
#1 1 – The drive pulley is a friction drive pulley.
· The ISP is certainly a friction-driven pulley. This configuration can be specified for a tracking precision of 0.030″ (0.762 mm) or greater.
· Teflon® flanges are attached to the pulley body to establish a lateral constraint. The steering feature of the ISP can be used to set one advantage of the belt against the flange with minimal side-loading to the belt.
System Configuration
#2 2 – The drive pulley is a timing pulley.
· The ISP can be a friction driven pulley. The teeth of the drive pulley and the perforations of the belt establish a lateral constraint. The steering feature of the ISP can be used to reduce side-loading of the belt perforations. Tracking precision is between 0.008″ (0.203 mm) and 0.015″ (0.381 mm) for steel belt systems.
OR
· The ISP is usually a timing pulley. The teeth of the ISP and the perforations of the belt are utilized for precise tracking control of the belt with the steering feature of the ISP utilized to minimize side loading of belt perforations. Again, tracking precision is certainly 0.008″ (0.203 mm) to 0.015″ (0.381 mm) for metal bells.
Note: Although it is normally not recommended to possess timing elements in both drive and driven pulleys, this design can be used selectively on metallic belt systems with long center distances between pulleys and in applications where particulate accumulation on the top of pulley constantly changes the tracking feature of the belt.