Steel Spur Gears

Product catalog summary

Overview: This document outlines the specifications and guidelines for steel spur gears, focusing on dimensions, allowable torque, and operational cautions. It includes detailed tables with measurements and technical data for various gear models.

Specifications: Gears are categorized by module, number of teeth, and shape. Key dimensions include bore, hub diameter, pitch diameter, outside diameter, face width, hub width, and total length. Made from S45C steel, the gears have a standard full depth gear teeth and a pressure angle of 20°. Precision follows JIS standards with tooth hardness less than 194HB.

Allowable Torque and Backlash: Allowable torque values are provided in N·m and kgf·m, along with theoretical backlash values for gears in mesh, ensuring safe operation under assumed conditions.

Secondary Operations: Cautions emphasize not narrowing tooth width to maintain precision and strength. Specific pages offer detailed safety concerns and modification systems like KHK Quick-Mod Gears.

Product Characteristics: Gears with tapped holes include set screws. The use of dowel pins for secure fastening under light load conditions is recommended, with guidelines for handling backlash and torque calculations.

Additional Notes: Specific cautions for J series products include lead times for shipping, order quantities, and keyway standards. Re-worked areas will not be black oxide coated.

Ordering Instructions: For J Series products, specify the catalog number followed by 'J' and the bore size. Various catalog numbers are listed for different gear sizes and modules.

Cautions: Products require a lead-time of two working days for shipping. Orders range from 1 to 20 units; larger orders need a quote. Keyways follow JIS B1301 standards with Js9 tolerance. Products with long tapped holes are counterbored to reduce tap length.

CU-S Spur Gear Kit: Designed for parallel axes gears in a two-stage configuration, the kit includes spur gears with a gear ratio of 1.89 and a total weight of approximately 1kg, suitable for speed increases and reductions.

Technical Data: Detailed tables list spur gear models with specifications such as module, number of teeth, shape, bore, hub diameter, pitch diameter, outside diameter, face width, hub width, total length, web thickness, and web outer diameter. Allowable torque values, backlash ranges, and weights for each gear model are provided.

Caution on Secondary Operations: Guidelines emphasize avoiding operations that narrow tooth width, affecting precision and strength.

Catalog excerpts

Steel Spur Gears SS Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears * The precision grade of products with a module of less than 0.8 is equivalent to the value shown in the table. Other Bevel Worm Screw Bevel Miter CP Racks Dacks Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown in the table are the theoretical values for the backlash in the normal direction of a pair of identical gears in mesh. @ If the bore size is less than 9 4, the tolerance is H8. If the bore size is 95 or9 6, and the hole length exceeds 3 times of the bore size, the tolerance is also H8. © The use of S3T and S1T shaped set screws for fastening gears to a shaft are only applicable to light load usage. For secure fastening, please use dowel pins, in combination. [Caution on Secondary Operations] ©Please read "Caution on Performing Secondary Operations" (Page 32) when performing modifications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available. © Avoid performing secondary operations that narrow the tooth width as it affects precision and strength.

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Module 0.5 Steel Spur Gears Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical I Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears * The precision grade of products with a module of less than 0.8 is equivalent to the value shown in the table. [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown in the table are the theoretical values...

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Module 0.8 Steel Spur Gears Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical I Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears * The precision grade of products with a module of less than 0.8 is equivalent to the value shown in the table. [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown in the table are the theoretical values...

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| Steel Spur Gears Module 1 Steel Spur Gears Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears Other Bevel Worm Screw Bevel Miter CP Racks Dacks Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash...

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Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears Steel Spur Gears -E3©“ -=4== Other Bevel Worm Screw Bevel Miter CP Racks Dacks Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown...

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Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears Steel Spur Gears S1 [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown in the table are the theoretical values for the backlash in the normal direction of a pair of identical gears in mesh. @ The use of S1T shaped set screws for fastening...

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Steel Spur Gears Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears Other Bevel Worm Screw Bevel Miter CP Racks Racks Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown in the table...

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Steel Spur Gears Other Bevel Worm Screw Bevel Miter CP Racks R . Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions ac s Gears Gears Gears * The precision grade of J Series products is equivalent to the value shown in the table. [Caution on Product Characteristics] © For products with a tapped hole, a set screw is included. © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details. © The backlash values shown in the table are the theoretical values for the backlash in the normal direction...

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