[KHK] KHG gear is a fine gear with a twist angle of 21°30′.

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last updated：Jul 30, 2025

小原歯車工業

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A helical gear that can be used for assembly distances of spur gears. It excels in strength and wear resistance, allowing for a more compact design.

KHG gears are products designed with considerations for quiet operation, compact design, and cost-effectiveness, suitable for high-speed rotation in various industrial machines such as machine tools and reducers. They excel in strength and wear resistance, allowing for a more compact design. When selecting gears, please check the specifications and dimensions of each product according to your intended application. 【Features】 - Usable with the assembly distance of spur gears. * - Products designed with considerations for quiet operation, compact design, and cost-effectiveness. - Suitable for high-speed rotation in all types of industrial machinery, including machine tools and reducers. - Excellent in strength and wear resistance. - Allows for a compact design. * Usable with the assembly distance of spur gears. KHG gears adopt a "right angle" module. The assembly distance is the same as that of spur gear sets with the same module and number of teeth. This results in increased strength and improved quietness, receiving positive feedback for power enhancement from spur gears. For more details, please contact us or refer to the catalog.

Related Link - https://www.khkgears.co.jp/khk_products/Helicalgea…

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basic information

【Common Specifications】 ○ Accuracy Grade: JIS B 1702-1 N6 ○ Heat Treatment: Quenching and Tempering, High-Frequency Hardening of Tooth Surface ○ Gear Reference Section: Axis Perpendicular ○ Tooth Surface Hardness: 50–60 HRC ○ Tooth Profile: Straight Tooth ○ Surface Treatment: Black Oxide except for Ground Parts ○ Pressure Angle: 20° ○ Tooth Surface Finish: Grinding ○ Twist Angle: 21°30’ ○ Tooth Grinding Reference Surface: Hole (H7) ○ Material: SCM440 ○ Additional Processing: Possible ● For more details, please contact us or refer to the catalog.