Product Description

1622311033/ Air Compressor Gear for CZPT Spare Parts

 

 

The minimum pressure valve is composed of valve body, valve core, spring, sealing ring, adjusting screw, etc. It is installed at the outlet of the oil separator. Its function is to keep the pressure in the oil separation tank from falling below 0.4MPa. The compressed air containing oil can be separated better in the separator and the loss of lubricating oil can be reduced. At the same time, it can ensure the gas pressure required to establish the oil pressure. The minimum pressure valve also functions as a one-way valve to prevent the compressed air in the system from flowing back when the system is shut down. The holding pressure of the minimum pressure valve has been adjusted before leaving the factory. If the holding pressure changes due to a long time of use, it can be adjusted by the adjustment screw on the valve.

Feature

  • Direct Replace CZPT & Product Compatibility 1 1613950300 1622365200 1622365600 Atlas Copco GA75 Air filter 1619279800 Atlas Copco GA250 Air filter Atlas Copco GA220 Air filter 1627009499 Atlas Copco GA30 Air filter 1613740700 Atlas Copco GA37 Air filter 1613740800 Atlas Copco GA75 Air filter 1613800400 Atlas Copco GA55 Air filter 1613955710 Atlas Copco GA55 Air filter 1613950300 Atlas Copco GA11, GA22 Air filter 1613872000 Atlas Copco GA18 Air filter 1619126900 Atlas Copco   Air filter 157117000 Atlas Copco GA90C/110/132/160 Air filter 1621054799 Atlas Copco   Air filter 1613950300 Atlas Copco   Air filter 1621510700 Atlas Copco XRHS396. XRHS366, XRVS455 Air filter 2914501700 Atlas Copco XRHS396. XRHS366, XRVS455 Air filter CF810 Atlas Copco   Air filter 1619162900 Atlas Copco   Air filter 1619284700 Atlas Copco   Air filter Atlas Copco   Air filter 1621574300 Atlas Copco XA75 Separator 1614437300 Atlas Copco   Separator 290157101 Atlas Copco GA30 Separator 162205710 Atlas Copco   Separator 2957106100 Atlas Copco XRVS10 Separator 165712880 Atlas Copco   Separator 2957100401 Atlas Copco GA11C-GA30C Separator 290157100 Atlas Copco GA22 Separator 1613755710 Atlas Copco   Separator 1622646000 Atlas Copco   Separator 2957134301 Atlas Copco   Separator 1613688002 Atlas Copco   Separator 1613692100 Atlas Copco GA250 Separator 1621938600 Atlas Copco GA18 Separator 1612386900 Atlas Copco GA45 Separator 1613839700 Atlas Copco GA45,GA30 Separator 1613688000 Atlas Copco   Separator 1613901400 Atlas Copco   Separator 1257172200 Atlas Copco GA37 Separator 1613243300 Atlas Copco   Separator 1616465602 Atlas Copco GA75 Separator 1613730600 Atlas Copco GA75,GA55 Separator 1613955900 Atlas Copco GA75VSD Separator 2957185800 Atlas Copco   Separator 290657100 Atlas Copco   Separator 2957156602 Atlas Copco GA90 Separator 1622365600 Atlas Copco GA75 Separator 1613800700 Atlas Copco GA1110 Separator 2252631300 Atlas Copco   Separator 2906056500 Atlas Copco GA110 Separator 1614905400 Atlas Copco GA200 / GA250 Separator 1614952100 Atlas Copco GA132/160 Separator 1614905600 Atlas Copco   Separator 162257100 Atlas Copco   Separator 15130 0571 0 Atlas Copco   Separator 1621938500 Atlas Copco GA90C Separator 1614642300 Atlas Copco   Separator 2957107800 Atlas Copco   Separator 2957177400 Atlas Copco   Separator 1614704800 Atlas Copco   Separator 162257100 Atlas Copco   Air filter 1621054700 Atlas Copco GA37 Separator 1613839702 Atlas Copco   Separator 2957153600 Atlas Copco GA90 Separator 1621938400 Atlas Copco   Separator 2957153700 Atlas Copco   Separator 162205711 Atlas Copco   Separator 1613610590 Atlas Copco   Separator 2911001700 Atlas Copco   Separator 1257141900 Atlas Copco   Separator 1621574200 Atlas Copco   Separator 2901162600 Atlas Copco GA37 Separator 1622314000 Atlas Copco GA5-GA11 Separator 2957152300 Atlas Copco   Air filter 1622185501 Atlas Copco GA132 Separator 1621938599 Atlas Copco GA75-8 Separator 1622569300 Atlas Copco   Separator 1612386901 Atlas Copco   Separator 1616465600 Atlas Copco   Separator 1257134300 Atlas Copco   Separator 1614905499 Atlas Copco   Separator 1616283600 Atlas Copco   Separator 1615594800 Atlas Copco   Separator 22526313 Atlas Copco   Separator 1613765710 Atlas Copco GA11 Oil filter 1613610500 Atlas Copco   Oil filter 1614874700 Atlas Copco   Oil filter 1625165601 Atlas Copco   Oil filter 1513033700 Atlas Copco   Oil filter 1257104090 Atlas Copco   Oil filter 1625165602 Atlas Copco GA37VSD Oil filter 1622314200 Atlas Copco GA75VSD Oil filter 1622365200 Atlas Copco GA30/37 (OLD) Separator 1202641400 Atlas Copco   Air filter 161395710 Atlas Copco GA237 Separator 1614532900 Atlas Copco   Oil filter 1257104000 Atlas Copco   Oil filter 1621875000 Atlas Copco   Oil filter 1513033701 Atlas Copco   Oil filter 1614874799 Atlas Copco   Separator 16219 0571 0 Atlas Copco   Separator 2957100300

     

    Part No. Part No. Part No. Part No.
    1092200288 1621737800 1513033790 1622365200
    1202804002 1622783600 1613610500 1625752500
    1513033700 1625480000 1613610590 1625775400
    1613610500 1625752500 1614874700 2202929400
    1613737800 WD962 1622035101 16227836000
    1614727300 WD1374 1622087100 1621737800
    1614874700 1622365200 1622314200 1622314200
    1619262700 1202804002 1622314280 1622314280

    ###

    Air Compressor Models Air Filter Oil Filter Separator
    GA 55 PLUS from2005 1613950300 1622365200 1622365600
    GA 75 PLUS from 2005 1613950300 1622460100 1622365600
    GA 75 VSD 1613950300 1622365200 2901085800
    GA 90 from 2005 1613950300 1622365200 1622365600
    GA 75 VSD from 2006/07 1613950300 1622365200 1622365600
    GA 90 VSD from 2006/07 1613950300 1622460100 1622365600
    GA 90 from s/n API 610000 1613950300 1622365200 1622365600
    Atlas Copco GA75 Air filter 1619279800
    Atlas Copco GA250 Air filter 1621054600
    Atlas Copco GA220 Air filter 1627009499
    Atlas Copco GA30 Air filter 1613740700
    Atlas Copco GA37 Air filter 1613740800
    Atlas Copco GA75 Air filter 1613800400
    Atlas Copco GA55 Air filter 1613950100
    Atlas Copco GA55 Air filter 1613950300
    Atlas Copco GA11, GA22 Air filter 1613872000
    Atlas Copco GA18 Air filter 1619126900
    Atlas Copco   Air filter 1030107000
    Atlas Copco GA90C/110/132/160 Air filter 1621054799
    Atlas Copco   Air filter 1613950300
    Atlas Copco   Air filter 1621510700
    Atlas Copco XRHS396. XRHS366, XRVS455 Air filter 2914501700
    Atlas Copco XRHS396. XRHS366, XRVS455 Air filter CF810
    Atlas Copco   Air filter 1619162900
    Atlas Copco   Air filter 1619284700
    Atlas Copco   Air filter 1621054600
    Atlas Copco   Air filter 1621574300
    Atlas Copco XA75 Separator 1614437300
    Atlas Copco   Separator 2901077901
    Atlas Copco GA30 Separator 1622007900
    Atlas Copco   Separator 2901006100
    Atlas Copco XRVS10 Separator 1604132880
    Atlas Copco   Separator 2901000401
    Atlas Copco GA11C-GA30C Separator 2901077900
    Atlas Copco GA22 Separator 1613750200
    Atlas Copco   Separator 1622646000
    Atlas Copco   Separator 2901034301
    Atlas Copco   Separator 1613688002
    Atlas Copco   Separator 1613692100
    Atlas Copco GA250 Separator 1621938600
    Atlas Copco GA18 Separator 1612386900
    Atlas Copco GA45 Separator 1613839700
    Atlas Copco GA45,GA30 Separator 1613688000
    Atlas Copco   Separator 1613901400
    Atlas Copco   Separator 1202872200
    Atlas Copco GA37 Separator 1613243300
    Atlas Copco   Separator 1616465602
    Atlas Copco GA75 Separator 1613730600
    Atlas Copco GA75,GA55 Separator 1613955900
    Atlas Copco GA75VSD Separator 2901085800
    Atlas Copco   Separator 2906075200
    Atlas Copco   Separator 2901056602
    Atlas Copco GA90 Separator 1622365600
    Atlas Copco GA75 Separator 1613800700
    Atlas Copco GA1110 Separator 2252631300
    Atlas Copco   Separator 2906056500
    Atlas Copco GA110 Separator 1614905400
    Atlas Copco GA200 / GA250 Separator 1614952100
    Atlas Copco GA132/160 Separator 1614905600
    Atlas Copco   Separator 1622051600
    Atlas Copco   Separator 1513005800
    Atlas Copco   Separator 1621938500
    Atlas Copco GA90C Separator 1614642300
    Atlas Copco   Separator 2901007800
    Atlas Copco   Separator 2901077400
    Atlas Copco   Separator 1614704800
    Atlas Copco   Separator 1622087100
    Atlas Copco   Air filter 1621054700
    Atlas Copco GA37 Separator 1613839702
    Atlas Copco   Separator 2901053600
    Atlas Copco GA90 Separator 1621938400
    Atlas Copco   Separator 2901053700
    Atlas Copco   Separator 1622007901
    Atlas Copco   Separator 1613610590
    Atlas Copco   Separator 2911001700
    Atlas Copco   Separator 1202741900
    Atlas Copco   Separator 1621574200
    Atlas Copco   Separator 2901162600
    Atlas Copco GA37 Separator 1622314000
    Atlas Copco GA5-GA11 Separator 2901052300
    Atlas Copco   Air filter 1622185501
    Atlas Copco GA132 Separator 1621938599
    Atlas Copco GA75-8 Separator 1622569300
    Atlas Copco   Separator 1612386901
    Atlas Copco   Separator 1616465600
    Atlas Copco   Separator 1202834300
    Atlas Copco   Separator 1614905499
    Atlas Copco   Separator 1616283600
    Atlas Copco   Separator 1615594800
    Atlas Copco   Separator 22526313
    Atlas Copco   Separator 1613760200
    Atlas Copco GA11 Oil filter 1613610500
    Atlas Copco   Oil filter 1614874700
    Atlas Copco   Oil filter 1625165601
    Atlas Copco   Oil filter 1513033700
    Atlas Copco   Oil filter 1202804090
    Atlas Copco   Oil filter 1625165602
    Atlas Copco GA37VSD Oil filter 1622314200
    Atlas Copco GA75VSD Oil filter 1622365200
    Atlas Copco GA30/37 (OLD) Separator 1202641400
    Atlas Copco   Air filter 1613900100
    Atlas Copco GA237 Separator 1614532900
    Atlas Copco   Oil filter 1202804000
    Atlas Copco   Oil filter 1621875000
    Atlas Copco   Oil filter 1513033701
    Atlas Copco   Oil filter 1614874799
    Atlas Copco   Separator 1621907700
    Atlas Copco   Separator 2901000300
    Part No. Part No. Part No. Part No.
    1092200288 1621737800 1513033790 1622365200
    1202804002 1622783600 1613610500 1625752500
    1513033700 1625480000 1613610590 1625775400
    1613610500 1625752500 1614874700 2202929400
    1613737800 WD962 1622035101 16227836000
    1614727300 WD1374 1622087100 1621737800
    1614874700 1622365200 1622314200 1622314200
    1619262700 1202804002 1622314280 1622314280

    ###

    Air Compressor Models Air Filter Oil Filter Separator
    GA 55 PLUS from2005 1613950300 1622365200 1622365600
    GA 75 PLUS from 2005 1613950300 1622460100 1622365600
    GA 75 VSD 1613950300 1622365200 2901085800
    GA 90 from 2005 1613950300 1622365200 1622365600
    GA 75 VSD from 2006/07 1613950300 1622365200 1622365600
    GA 90 VSD from 2006/07 1613950300 1622460100 1622365600
    GA 90 from s/n API 610000 1613950300 1622365200 1622365600
    Atlas Copco GA75 Air filter 1619279800
    Atlas Copco GA250 Air filter 1621054600
    Atlas Copco GA220 Air filter 1627009499
    Atlas Copco GA30 Air filter 1613740700
    Atlas Copco GA37 Air filter 1613740800
    Atlas Copco GA75 Air filter 1613800400
    Atlas Copco GA55 Air filter 1613950100
    Atlas Copco GA55 Air filter 1613950300
    Atlas Copco GA11, GA22 Air filter 1613872000
    Atlas Copco GA18 Air filter 1619126900
    Atlas Copco   Air filter 1030107000
    Atlas Copco GA90C/110/132/160 Air filter 1621054799
    Atlas Copco   Air filter 1613950300
    Atlas Copco   Air filter 1621510700
    Atlas Copco XRHS396. XRHS366, XRVS455 Air filter 2914501700
    Atlas Copco XRHS396. XRHS366, XRVS455 Air filter CF810
    Atlas Copco   Air filter 1619162900
    Atlas Copco   Air filter 1619284700
    Atlas Copco   Air filter 1621054600
    Atlas Copco   Air filter 1621574300
    Atlas Copco XA75 Separator 1614437300
    Atlas Copco   Separator 2901077901
    Atlas Copco GA30 Separator 1622007900
    Atlas Copco   Separator 2901006100
    Atlas Copco XRVS10 Separator 1604132880
    Atlas Copco   Separator 2901000401
    Atlas Copco GA11C-GA30C Separator 2901077900
    Atlas Copco GA22 Separator 1613750200
    Atlas Copco   Separator 1622646000
    Atlas Copco   Separator 2901034301
    Atlas Copco   Separator 1613688002
    Atlas Copco   Separator 1613692100
    Atlas Copco GA250 Separator 1621938600
    Atlas Copco GA18 Separator 1612386900
    Atlas Copco GA45 Separator 1613839700
    Atlas Copco GA45,GA30 Separator 1613688000
    Atlas Copco   Separator 1613901400
    Atlas Copco   Separator 1202872200
    Atlas Copco GA37 Separator 1613243300
    Atlas Copco   Separator 1616465602
    Atlas Copco GA75 Separator 1613730600
    Atlas Copco GA75,GA55 Separator 1613955900
    Atlas Copco GA75VSD Separator 2901085800
    Atlas Copco   Separator 2906075200
    Atlas Copco   Separator 2901056602
    Atlas Copco GA90 Separator 1622365600
    Atlas Copco GA75 Separator 1613800700
    Atlas Copco GA1110 Separator 2252631300
    Atlas Copco   Separator 2906056500
    Atlas Copco GA110 Separator 1614905400
    Atlas Copco GA200 / GA250 Separator 1614952100
    Atlas Copco GA132/160 Separator 1614905600
    Atlas Copco   Separator 1622051600
    Atlas Copco   Separator 1513005800
    Atlas Copco   Separator 1621938500
    Atlas Copco GA90C Separator 1614642300
    Atlas Copco   Separator 2901007800
    Atlas Copco   Separator 2901077400
    Atlas Copco   Separator 1614704800
    Atlas Copco   Separator 1622087100
    Atlas Copco   Air filter 1621054700
    Atlas Copco GA37 Separator 1613839702
    Atlas Copco   Separator 2901053600
    Atlas Copco GA90 Separator 1621938400
    Atlas Copco   Separator 2901053700
    Atlas Copco   Separator 1622007901
    Atlas Copco   Separator 1613610590
    Atlas Copco   Separator 2911001700
    Atlas Copco   Separator 1202741900
    Atlas Copco   Separator 1621574200
    Atlas Copco   Separator 2901162600
    Atlas Copco GA37 Separator 1622314000
    Atlas Copco GA5-GA11 Separator 2901052300
    Atlas Copco   Air filter 1622185501
    Atlas Copco GA132 Separator 1621938599
    Atlas Copco GA75-8 Separator 1622569300
    Atlas Copco   Separator 1612386901
    Atlas Copco   Separator 1616465600
    Atlas Copco   Separator 1202834300
    Atlas Copco   Separator 1614905499
    Atlas Copco   Separator 1616283600
    Atlas Copco   Separator 1615594800
    Atlas Copco   Separator 22526313
    Atlas Copco   Separator 1613760200
    Atlas Copco GA11 Oil filter 1613610500
    Atlas Copco   Oil filter 1614874700
    Atlas Copco   Oil filter 1625165601
    Atlas Copco   Oil filter 1513033700
    Atlas Copco   Oil filter 1202804090
    Atlas Copco   Oil filter 1625165602
    Atlas Copco GA37VSD Oil filter 1622314200
    Atlas Copco GA75VSD Oil filter 1622365200
    Atlas Copco GA30/37 (OLD) Separator 1202641400
    Atlas Copco   Air filter 1613900100
    Atlas Copco GA237 Separator 1614532900
    Atlas Copco   Oil filter 1202804000
    Atlas Copco   Oil filter 1621875000
    Atlas Copco   Oil filter 1513033701
    Atlas Copco   Oil filter 1614874799
    Atlas Copco   Separator 1621907700
    Atlas Copco   Separator 2901000300

    Hypoid Bevel Vs Straight Spiral Bevel – What’s the Difference?

    Spiral gears come in many different varieties, but there is a fundamental difference between a Hypoid bevel gear and a Straight spiral bevel. This article will describe the differences between the two types of gears and discuss their use. Whether the gears are used in industrial applications or at home, it is vital to understand what each type does and why it is important. Ultimately, your final product will depend on these differences.
    Gear

    Hypoid bevel gears

    In automotive use, hypoid bevel gears are used in the differential, which allows the wheels to rotate at different speeds while maintaining the vehicle’s handling. This gearbox assembly consists of a ring gear and pinion mounted on a carrier with other bevel gears. These gears are also widely used in heavy equipment, auxiliary units, and the aviation industry. Listed below are some common applications of hypoid bevel gears.
    For automotive applications, hypoid gears are commonly used in rear axles, especially on large trucks. Their distinctive shape allows the driveshaft to be located deeper in the vehicle, thus lowering the center of gravity and minimizing interior disruption. This design makes the hypoid gearset one of the most efficient types of gearboxes on the market. In addition to their superior efficiency, hypoid gears are very easy to maintain, as their mesh is based on sliding action.
    The face-hobbed hypoid gears have a characteristic epicycloidal lead curve along their lengthwise axis. The most common grinding method for hypoid gears is the Semi-Completing process, which uses a cup-shaped grinding wheel to replace the lead curve with a circular arc. However, this method has a significant drawback – it produces non-uniform stock removal. Furthermore, the grinding wheel cannot finish all the surface of the tooth.
    The advantages of a hypoid gear over a spiral bevel gear include a higher contact ratio and a higher transmission torque. These gears are primarily used in automobile drive systems, where the ratio of a single pair of hypoid gears is the highest. The hypoid gear can be heat-treated to increase durability and reduce friction, making it an ideal choice for applications where speed and efficiency are critical.
    The same technique used in spiral bevel gears can also be used for hypoid bevel gears. This machining technique involves two-cut roughing followed by one-cut finishing. The pitch diameter of hypoid gears is up to 2500 mm. It is possible to combine the roughing and finishing operations using the same cutter, but the two-cut machining process is recommended for hypoid gears.
    The advantages of hypoid gearing over spiral bevel gears are primarily based on precision. Using a hypoid gear with only three arc minutes of backlash is more efficient than a spiral bevel gear that requires six arc minutes of backlash. This makes hypoid gears a more viable choice in the motion control market. However, some people may argue that hypoid gears are not practical for automobile assemblies.
    Hypoid gears have a unique shape – a cone that has teeth that are not parallel. Their pitch surface consists of two surfaces – a conical surface and a line-contacting surface of revolution. An inscribed cone is a common substitute for the line-contact surface of hypoid bevel gears, and it features point-contacts instead of lines. Developed in the early 1920s, hypoid bevel gears are still used in heavy truck drive trains. As they grow in popularity, they are also seeing increasing use in the industrial power transmission and motion control industries.
    Gear

    Straight spiral bevel gears

    There are many differences between spiral bevel gears and the traditional, non-spiral types. Spiral bevel gears are always crowned and never conjugated, which limits the distribution of contact stress. The helical shape of the bevel gear is also a factor of design, as is its length. The helical shape has a large number of advantages, however. Listed below are a few of them.
    Spiral bevel gears are generally available in pitches ranging from 1.5 to 2500 mm. They are highly efficient and are also available in a wide range of tooth and module combinations. Spiral bevel gears are extremely accurate and durable, and have low helix angles. These properties make them excellent for precision applications. However, some gears are not suitable for all applications. Therefore, you should consider the type of bevel gear you need before purchasing.
    Compared to helical gears, straight bevel gears are easier to manufacture. The earliest method used to manufacture these gears was the use of a planer with an indexing head. However, with the development of modern manufacturing processes such as the Revacycle and Coniflex systems, manufacturers have been able to produce these gears more efficiently. Some of these gears are used in windup alarm clocks, washing machines, and screwdrivers. However, they are particularly noisy and are not suitable for automobile use.
    A straight bevel gear is the most common type of bevel gear, while a spiral bevel gear has concave teeth. This curved design produces a greater amount of torque and axial thrust than a straight bevel gear. Straight teeth can increase the risk of breaking and overheating equipment and are more prone to breakage. Spiral bevel gears are also more durable and last longer than helical gears.
    Spiral and hypoid bevel gears are used for applications with high peripheral speeds and require very low friction. They are recommended for applications where noise levels are essential. Hypoid gears are suitable for applications where they can transmit high torque, although the helical-spiral design is less effective for braking. For this reason, spiral bevel gears and hypoids are generally more expensive. If you are planning to buy a new gear, it is important to know which one will be suitable for the application.
    Spiral bevel gears are more expensive than standard bevel gears, and their design is more complex than that of the spiral bevel gear. However, they have the advantage of being simpler to manufacture and are less likely to produce excessive noise and vibration. They also have less teeth to grind, which means that they are not as noisy as the spiral bevel gears. The main benefit of this design is their simplicity, as they can be produced in pairs, which saves money and time.
    In most applications, spiral bevel gears have advantages over their straight counterparts. They provide more evenly distributed tooth loads and carry more load without surface fatigue. The spiral angle of the teeth also affects thrust loading. It is possible to make a straight spiral bevel gear with two helical axes, but the difference is the amount of thrust that is applied to each individual tooth. In addition to being stronger, the spiral angle provides the same efficiency as the straight spiral gear.
    Gear

    Hypoid gears

    The primary application of hypoid gearboxes is in the automotive industry. They are typically found on the rear axles of passenger cars. The name is derived from the left-hand spiral angle of the pinion and the right-hand spiral angle of the crown. Hypoid gears also benefit from an offset center of gravity, which reduces the interior space of cars. Hypoid gears are also used in heavy trucks and buses, where they can improve fuel efficiency.
    The hypoid and spiral bevel gears can be produced by face-hobbing, a process that produces highly accurate and smooth-surfaced parts. This process enables precise flank surfaces and pre-designed ease-off topographies. These processes also enhance the mechanical resistance of the gears by 15 to 20%. Additionally, they can reduce noise and improve mechanical efficiency. In commercial applications, hypoid gears are ideal for ensuring quiet operation.
    Conjugated design enables the production of hypoid gearsets with length or profile crowning. Its characteristic makes the gearset insensitive to inaccuracies in the gear housing and load deflections. In addition, crowning allows the manufacturer to adjust the operating displacements to achieve the desired results. These advantages make hypoid gear sets a desirable option for many industries. So, what are the advantages of hypoid gears in spiral gears?
    The design of a hypoid gear is similar to that of a conventional bevel gear. Its pitch surfaces are hyperbolic, rather than conical, and the teeth are helical. This configuration also allows the pinion to be larger than an equivalent bevel pinion. The overall design of the hypoid gear allows for large diameter shafts and a large pinion. It can be considered a cross between a bevel gear and a worm drive.
    In passenger vehicles, hypoid gears are almost universal. Their smoother operation, increased pinion strength, and reduced weight make them a desirable choice for many vehicle applications. And, a lower vehicle body also lowers the vehicle’s body. These advantages made all major car manufacturers convert to hypoid drive axles. It is worth noting that they are less efficient than their bevel gear counterparts.
    The most basic design characteristic of a hypoid gear is that it carries out line contact in the entire area of engagement. In other words, if a pinion and a ring gear rotate with an angular increment, line contact is maintained throughout their entire engagement area. The resulting transmission ratio is equal to the angular increments of the pinion and ring gear. Therefore, hypoid gears are also known as helical gears.