Timing pulleys, synchronous timing pulleys and idler pulleys
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Timing pulleys, synchronous timing pulleys and idler pulleys
Timing belts run on timing pulleys and synchronous timing pulleys. Together with idler pulleys, teeth and a motor, they form the basis of a toothed belt drive. Due to their versatility and high efficiency, toothed belt drives are very important in industry.
Timing pulleys
The range of applications for toothed belt drives includes power drives, linear drives and transport drives. Timing pulleys perform various functions in a toothed belt drive. They are are divided into driving, output, securing and tensioning pulleys.
Synchronous timing pulleys
Synchronous timing pulleys are distinguished according to drive and output pulleys. Drive pulleys transmit the rotational forces of the motor to the belt and set it in motion. Output pulleys are the non-driven counterpart of the drive pulleys.
Toothed pulleys
Toothed pulleys ensure that the belt runs straight and tracks sideways from the timing pulleys. Depending on the engagement side of the pulley onto the belt, the running surface of the pulley can be either toothed or smooth.
Idler pulleys
Idler pulleys tension the belt in order to ensure smooth running without flutter due to the relieved slack strand. The optimum tension of a toothed belt drive is significantly lower than that of a frictionally engaged belt drives. Both toothed and smooth idler pulleys are used, depending on the engagement side of the idler pulley on the belt.
The MISUMI online shop for timing pulleys and synchronous timing pulleys offers you the following configuration options:
- Freely selectable number of teeth: 10 to 192 teeth
- Freely selectable disc width: 3 to 125 mm
- Various surface treatments: burnished, clear or black anodised and nickel-plated
- Various metric profile shapes available: T2.5, T5 ,T10
- Various imperial profile shapes available: MXL, XL, L, H, GT, YU, T and AT
- Selectable drive form: clamping screw, keyway or conical clamping sleeve
- Selectable materials: aluminium, plastic, normal and stainless steel
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Timing pulleys and synchronous timing pulleys in the 3D printing industry
The timing belt originally comes from the automotive sector. Later developments of belt shapes resulted from the use of timing belts in scanners. Today, the 3D printer sector is able to benefit particularly from these developments. Toothed belt drives are a very common drive element for positioning in the 3D printer industry due to their high positioning accuracy and the small installation space required. Additional advantages include their low maintenance requirements and long service life.
Example application – 3D printer
A project from the practice of additive manufacturing where these parts were used was implemented by our partner Christian Reil. Here the toothed belt drive drives a ball screw via a timing pulley. The timing pulley in turn raises and lowers a machine table in a vertical direction in order to position it. In addition, it is also possible to move the print head of a 3D printer in a horizontal direction using a toothed belt drive.
3D printer by Christian Reil using MISUMI parts
The 3D printer C1 from CR-3D is a Fused Filament Fabrication (FFF) 3D printer for the highest demands.
The C-Series stands for a compact design and ultra fast printing speeds in a space of 320x250x350mm. The state-of-the-art CoreXY MotionSystem ensures low moving mass and low vibration movements of the dual print head. The weight of the printhead has been further reduced by the Bowden extruder system. The user interface is a 7-inch touch display, which provides intuitive operation, uncomplicated setup and detailed status information to the user. In terms of user-friendliness, the device has also been equipped with a filament sensor and automatic print bed measurement before printing, so that nothing stands in the way of high process safety and reliability.
Download the part list here.
Switching power supplies by OMRON
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OMRON offers the complete portfolio for the required switching power supplies for 3D printers: whether DIN rail power supplies in control systems for large 3D printers or 24V open-frame power supplies for the small private 3D printer. A wide range of performance categories is also offered within the individual series. |
OMRON offers the complete portfolio for the required switching power supplies for 3D printers: whether DIN rail power supplies in control systems for large 3D printers or 24V open-frame power supplies for the small private 3D printer. A wide range of performance categories is also offered within the individual series.
During the design process, engineers will often opt for a more powerful heating bed for the 3D printer so as to shorten the warm-up time of the device. In this case, OMRON offers the simple option of selecting a different power supply with more power – so there’s no need to go back to the drawing board.
Maintenance is a major issue for large 3D printers as operating hours and remaining life expectancy are becoming increasingly important. Many OMRON power supplies have displays of this kind. For example, the S8VS Series Type A has a function that displays the remaining life of the device in service years. This supports unit maintenance, enabling replacement before product life finishes. Type B provides a total life monitoring function to help the user to plan maintenance properly.
Desgining easier and faster with MISUMI RAPiD Design
