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    10 Products
    About Gears
    industrial info icon

    Compare gear types, measure pitch and module, calculate mounting distance, increase speed or torque, and more.

    High-Power Metal Helical Gears

    The helical teeth on these gears stay in contact longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.
    Parallel Gears
    Image of Product. Front orientation. Helical Gears. High-Power Metal Helical Gears, Parallel Gears.
    Pair two parallel gears to transmit motion in a straight line or a gear with a rack to convert rotary motion to linear motion. Make sure mating components have different tooth directions.
    For gears to mesh correctly, they must have the same pressure angle and pitch/module. To change speed and torque in your assembly, pair two gears with different numbers of teeth.
    Hub,
    mm
    Left-Hand Teeth
    Right-Hand Teeth
    Gear
    Module
    No. of
    Teeth
    Helix
    Angle
    Gear Pitch
    Dia., mm
    OD,
    mm
    Face Wd.,
    mm
    Dia.
    Wd.
    Bore Type
    For Shaft
    Dia., mm
    Material
    Tooth Heat
    Treatment
    Each
    Each
    20° Pressure Angle
    1
    		2021 1/2°202281710Round Bore
    		64140 Alloy SteelHardened3598N1590000003598N161000000
    1
    		3021 1/2°303282510Round Bore
    		104140 Alloy SteelHardened3598N1710000003598N172000000
    1
    		4421 1/2°444683010Round Bore
    		104140 Alloy SteelHardened3598N1820000003598N183000000
     
    Parallel Gear Racks
    Image of System. Parallel Gear on Gear Rack (Sold Separately). Front orientation. Helical Gear Racks.
    Image of Product. Front orientation. Helical Gear Racks.

    Parallel Gear on

    Gear Rack (Sold

    Separately)

    Pair these racks with parallel helical gears that have an opposite tooth direction to convert rotary motion to linear motion.
    Left-Hand Teeth
    Right-Hand Teeth
    Gear
    Module
    Lg.,
    mm
    Helix
    Angle
    Pitch Ht.,
    mm
    Ht.,
    mm
    Face Wd.,
    mm
    Material
    Tooth Heat
    Treatment
    Each
    Each
    20° Pressure Angle
    1
    		10021 1/2°141584140 Alloy Steel
    		Not Hardened3598N26300000003598N2640000000
    1
    		50021 1/2°141584140 Alloy Steel
    		Not Hardened3598N2720000003598N273000000
     

    High-Power Metal Helical Gear Racks

    Image of System. Parallel Gear on Gear Rack (Sold Separately). Front orientation. Helical Gear Racks. High-Power Metal Helical Gear Racks.
    Image of Product. Front orientation. Helical Gear Racks. High-Power Metal Helical Gear Racks.

    Parallel Gear on

    Gear Rack (Sold

    Separately)

    Pair these racks with parallel helical gears that have an opposite tooth direction to convert rotary motion to linear motion.
    Left-Hand Teeth
    Right-Hand Teeth
    Gear
    Module
    Lg.,
    mm
    Helix
    Angle
    Pitch Ht.,
    mm
    Ht.,
    mm
    Face Wd.,
    mm
    Material
    Tooth Heat
    Treatment
    Each
    Each
    20° Pressure Angle
    1
    		10021 1/2°141584140 Alloy Steel
    		Not Hardened3598N26300000003598N2640000000
    1
    		50021 1/2°141584140 Alloy Steel
    		Not Hardened3598N2720000003598N273000000
     
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