What Are Spur Gear Reducers

Posted on Dec 20, 2020

Spur Gear Reducers

Spur gear reducers are very conventional types of gearboxes that were used in all kinds of industries in the past while now as there are many new models of gear designs, many mechanics are now used other gear types to design efficient gearboxes for heavy-duty processes.

What Are Spur Gear Reducers?

Spur gear reducers are gearboxes that utilize spur gear items as the primary driving devices that work the reducer operations. Spur gear reducers are very conventional types of gearboxes that were used in all kinds of industries in the past while now as there are many new models of gear designs, many mechanics are now used other gear types to design efficient gearboxes for heavy-duty processes. 

Moreover, both spur gears and helical gears belong to the JIS standards. The JIS B 1702-1: 1998 cylindrical gears are the protocol often applied, and there are thirteen grades of gear accuracy spanning from zero to twelve in which zero means the highest grade of precision while grade means the lowest grade of the precision level.
 

Spur Gears and Precision Levels

The international level of gears is strict and rigid since all those gear items are used in many precision manufacturing processes. The thirteen levels of accuracy mentioned above are for the JIS B 1702-1: 1998, and now we are going beyond them. The other standard is JIS B 1702-2: 1998 cylindrical gears, which allows values of deviation related to the radial composite deviations and the run-out information are different. This set of standards contains nine grades of gear accuracies ranging from four to twelve. Four is the highest grade and twelve is the lowest grade. The two gear standards of accuracy definitions are different from the former standards of the JIS B 1702-1976 for a lot of things to say, but here we will only focus on the incumbent standards on the precision gears as well as the helical gears and worm gears as the working basis.
 

:: Read More: What are the selection criteria for choosing a gear reducer?

New Standards of Spur Gears and Spur Based Gear Boxes

Since the invention of bevel gears, helical gears, the variety of gear items bring a lot of reliable usages for users of gearboxes. In the reducers, one of the main components is the gear itself. A gear is a rotating machine component that has cut teeth or inserted teeth, and that mesh with another toothed part to transmit the torque. Geared devices can alter the speed, torque, and direction of the targeted power source. Moreover, gears almost always produce a change in torque, and generate a mechanical advantage, via their gear ratio, and thus may be considered a simple machinery unit. 

In order to realize this, the teeth on the two meshing gears all have the same shape, and two or more meshing gears, working in a sequence, are therefore called a gear train or a transmission device. Simply put, gearbox and speed reducer is the defining invention of mechanical devices that have changed the history and greatly improved the progression of the human industry, so the development of this unit is without a doubt an ongoing development even today, continuing to optimize the transmission of torque and force in the mechanical world. In the automotive industry, gearboxes are most commonly used for motor vehicles in which the transmission adapts the output of the internal combustion engine and then to the drive wheel parts.
 

Transmission Issues of Reducers

Transmission technology in gearboxes is very critical for force delivery within the machinery. The engines need to run at a relatively high rotational speed as it is the designated pace, which is inappropriate for starting, stopping, and slower travel. That said, the transmission reduces the higher engine speed to the slower wheel speed, which increases the torque in the whole process during the operation. Therefore, as this system is widely used because of its great applicability, transmissions are also utilized on other machineries such as pedal bicycles, fixed machines, and where different rotational speeds and torques are applied for the operation dealing with the motor forces and strengths. 

Aside from these usages, the machine tools and plastics and rubber industries also make use of these gearboxes in order to have overall control of the output motor force strengths. Even though the spur gears are relatively simple, the simple structure of spur gears makes them easy to be maintained by onsite workers or junior engineers rather than special gear experts or professional mechanical engineers, so this is one of the most prominent advantages of spur gears and spur gear reducers.

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