Gears are elements that perform rotational motion that interact with each other through regularly spaced teeth, creating a gearbox for torque transmission. The use of gears allows you to change the speed of rotation of the object by a drive torqueand direction of rotation - the most popular example is the use of a rear transmission and in wheeled vehicles. The range gears, plastic plastic and aluminum variety, for the size and number of teeth, as well as sets, through the drive belts.
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Gear wheels
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Aluminum GT2 gear wheel with 20 teeth . Diameter: 16 mm, height: 16 mm, bore diameter: 8 mm.
Index: GRL-13296
Index: GRL-13296
Aluminum gear with 12 teeth. Diameter: 22 mm, height: 23 mm, hole diameter: 6 mm.
Index: GRL-13768
Index: GRL-13768
Aluminum double gear wheel having 20 teeth each. The product is a mounting element in which the width of the single wheel is 15 mm , the height is 28 mm and the hole...
Index: GRL-12577
Index: GRL-12577
Aluminum gear wheel having 20 teeth . The product is a mounting element with a diameter of 18 mm , height is 8,5 mm and hole diameter is 5 mm .
Index: GRL-12579
Index: GRL-12579
Worm gear, plastic, 6x10mm - white - 10pcs
A screw, i.e. a rotor for a worm gear, made of plastic. It has a cylindrical thread. The gear diameter is 6 mm and the overall length is 10 mm . It can be connected to two...
Index: GRL-21565
Index: GRL-21565
Aluminum gear with 12 teeth. Diameter: 22 mm, height: 23 mm, hole diameter: 5 mm.
Index: GRL-13767
Index: GRL-13767
Aluminum gear with 10 teeth . The product is a mounting element with a diameter of 18 mm , a height of 23 mm and a hole diameter of 5 mm.
Index: GRL-12576
Index: GRL-12576
Aluminum gear with 24 teeth. Diameter: 45 mm, height: 25 mm, hole diameter: 10 mm.
Index: GRL-13769
Index: GRL-13769
Sprocket for 20 tooth GT2 belt
The toothed wheel for the GT2 belt is used to transfer the drive from the engine to the GT2 toothed belt . Thanks to the high height of the wheel itself, we can install...
Index: VST-17349
Index: VST-17349
Toothed wheel 20T - 8mm - double
GT2 double gear wheel with 20 teeth. The width of a single wheel is 15 mm . The diameter of the holes is 2 mm.
Index: GRL-12520
Index: GRL-12520
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Aluminum gear with 10 teeth . The product is a mounting element, the diameter of which is 19 mm , the height is 23 mm and the hole diameter is 4 mm .
Index: GRL-12575
Index: GRL-12575
Aluminum gear with 10 teeth. Diameter: 18 mm, height: 23 mm, hole diameter: 8 mm.
Index: GRL-13766
Index: GRL-13766
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Aluminum gear with 24 teeth. Diameter: 42 mm, height: 25 mm, hole diameter: 6 mm.
Index: GRL-13771
Index: GRL-13771
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Aluminum gear with 10 teeth . Diameter: 19 mm , height: 23 mm , hole diameter: 6 mm .
Index: GRL-12574
Index: GRL-12574
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Double, pendant, metal pulley with the width of 10 mm and a diameter of 24 mm. The wheel can rotate 360 °. The sizes of the whole is: 53 x 25 x 15 mm.
Index: GRL-12515
Index: GRL-12515
Rubber V-belt - 2x90mm -10pcs.
Rubber belt used to transfer the drive e.g. from the motor shaft to another module, the thickness of the belt is 2 mm, the diameter is 90 mm. The set contains 10 pcs of belts.
Index: GRL-12513
Index: GRL-12513
Toothed belt 10x198mm + gear 12T - 6mm - 2 pieces
A set of belt and compatible gears . The circumference of the belt is approximately 198 mm and the width is 10mm . The wheel has 12 teeth. The tooth surface width is 11,2...
Index: GRL-12558
Index: GRL-12558
Double Hanging Pulley - 9x19mm
Double, pendant, metal pulley with the width of 9 mm and a diameter of 19 mm. The wheel can rotate 360 °. The sizes of the whole is: 58 x 29 x 26 mm.
Index: GRL-12514
Index: GRL-12514
Toothed Belt 10x198mm + Gear 12T - 5mm - 2pcs.
The kit of the belt and the compatible gears. The circuit of the belt is around 198 mm, and its width is 10 mm. The wheel has 12 teeth. The width of the tooth surface is 11.2...
Index: GRL-12516
Index: GRL-12516
Toothed belt 10x198mm + gear 12T - 8mm - 2 pieces
A set of belt and compatible gears . The circumference of the belt is approximately 198mm and the width is 10mm . The wheel has 12 teeth . The tooth surface width is...
Index: GRL-12559
Index: GRL-12559
Pulley with Bearing - 18x8x3mm
Aluminum pulley with bearing. Diameter: 18 mm, height: 8 mm, hole diameter: 3 mm.
Index: GRL-12581
Index: GRL-12581
Set of 20 pieces of shafts with the length of 20 mm and a diameter of 3 mm.
Index: GRL-12519
Index: GRL-12519
A set of gears in various sizes and shapes containing 61 pieces.
Index: ZEB-06176
Index: ZEB-06176
Toothed wheel 16T - GT2 - 14x13x5mm
Aluminum gear wheel GT2 having 16 teeth . The product is a mounting element, which wheel diameter is 13 mm , height is equal to 14 mm and hole diameter is 5 mm .
Index: GRL-12582
Index: GRL-12582
See also
Dimensional parameters of gears
The basic parameter of gears that you should pay attention to when selecting them for your project is the number of teeth arranged on the outer circumference of the wheel. The height of the tooth foot is also important. For gears with large teeth, it is easy to manually calculate their gear ratio due to the small number of teeth. However, in the case of a gear (enabling power transmission) with a large number of small teeth, selection for the project may prove problematic and it is best to rely on the documentation provided by the manufacturer. Each gear should be carefully described.
Gear parameters – continued
Another parameter determining the geometry of gears is their module , i.e. the size of a single tooth determined on the basis of the distance between the centers of identical tooth sides. The larger the module, the larger the teeth of the wheel. When selecting gears, their pitch diameter and outer diameter should also be taken into account.
The pitch diameter is determined by the straight line passing through the centers of the distance between the teeth on the circumference of the gear, and the outer diameter is determined by the straight line connecting the tips of the teeth placed opposite each other on the base circle of the gear.
The material should also be selected appropriately - we can choose between plastic and aluminum gears.
Operating parameters of gears
The performance of a gear transmission is determined by its operating parameters, i.e. torque, rotational speed and power. Torque represents the force applied to an arm of a specific length - for gears, torque depends on the diameter of the wheels between which it is transmitted. Additionally, we encourage you to check out the entire assortment of the assembly elements category, where you can find not only gears that mesh together, but also propellers , robot chassis , engine mounts , spacers , engine adapters and much more.
Gears – additional technical information
The rotational speed of the gear set determines the number of revolutions performed by the output wheel of the system in a specific time interval.
When a wheel with a larger diameter drives a wheel with a smaller diameter, then for one revolution of the larger wheel, the smaller wheel will make a greater number of revolutions in the same time interval - this solution is a gear that increases revolutions (higher wheel speed).
However, the smaller wheel driving the larger wheel is a system that allows the reduction of rotational speed. This solution is used when the design requires a lower speed on the gears.
Gear wheel – what else is worth knowing about it?
The size ratio of two mating wheels is linearly proportional to the changes in speed and torque between them. In turn, the power of the gear system determines the maximum amount of energy that the system can provide for a unit time (during the rotation of the wheels).
The power value of the gear is also significantly influenced by the power at the output of the gear driving system, e.g. on the engine shaft, while the power at the gear output remains constant, regardless of the dimensions of the gears constituting the gear.
Gears can be part of a gear ring, which has a higher load capacity compared to standard gears. The gear ring is usually composed of identical elements.
Gears - FAQ
Gears are the basic elements of power transmission in precision mechanisms, vehicles and many other areas of technology. They allow you to reduce speed and increase torque (or, on the contrary, increase rotational speed while reducing torque), as well as reverse the direction of rotation, e.g. given by an electric motor .
The invention of wheels and gears is attributed to the ancient Greeks of Alexandria, who worked on simple mechanisms in the third century BC. It is worth adding, however, that some historians trace the existence of gear wheels in Chinese chariots from the 27th century BC.