SS series

Product catalog summary

Overview: This document provides comprehensive specifications and guidelines for steel spur gears, detailing dimensions, allowable torque, and operational cautions. It includes technical data for various gear models, focusing on the SS, SS2, and SS2.5 series, as well as the CU-S Spur Gear Kit.

Specifications: The gears are made from S45C steel with a pressure angle of 20° and adhere to JIS precision grades N8 and 4. Key dimensions include bore, hub diameter, pitch diameter, outside diameter, face width, hub width, and total length. Tooth hardness is specified as less than 194HB, with no heat treatment applied.

Key Dimensions: Detailed tables provide measurements for each gear model, including module, number of teeth, and keyway dimensions where applicable.

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 operational limits.

Cautions on Operations: The document advises against secondary operations that could narrow tooth width, affecting precision and strength. It highlights the use of set screws and guidelines for secure fastening with dowel pins.

Product Characteristics: The document includes cautions on product characteristics, such as the inclusion of set screws and the calculation of allowable torques based on assumed usage conditions. Backlash values are theoretical for identical gears in mesh.

Ordering Procedures: 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.

Additional Notes: The document mentions the KHK Quick-Mod Gears system for quick modification of stock gears and provides cautions on performing secondary operations for safety concerns. It also notes lead times for shipping, order quantities, and keyway standards.

Performance Data: Performance data includes allowable torque (bending strength and surface durability), backlash, and weight for different gear models, presented in both N·m and kgf·m units.

Recommendations: Users are advised to consult the 'Caution on Performing Secondary Operations' section for safety concerns when modifying gears. The KHK Quick-Mod Gears system is available for quick modifications of stock gears.

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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