SSR series

Product catalog summary

Specifications:
The document provides specifications for Steel Ring Gears (Spur Gears) with modules 2, 2.5, and 3. The precision grade is JIS grade N9 (JIS B1702-1: 1998) and JIS grade 5 (JIS B1702: 1976). The gear teeth have a standard full depth with a pressure angle of 20°. The material used is S45C, with no heat treatment, and tooth hardness is less than 194HB.

Backlash and Weight:
Backlash values range from 0.17 to 0.45 mm, and weights range from 2.46 to 10.6 kg, depending on the catalog number and module.

Dimensions and Torque:
The document lists dimensions such as bore, pitch diameter, outside diameter, and face width for different catalog numbers. Allowable torque values are provided in both N·m and kgf·m, with bending strength and surface durability also specified.

Cautions:
The document includes cautions regarding product characteristics and secondary operations. It notes that allowable torques are calculated values and that backlash values are theoretical. It also warns about potential errors in the inside diameter due to deformation. For secondary operations, it advises reading specific guidelines and avoiding operations that narrow tooth width.

Additional Services:
Custom gear production services with short lead times are available for products not in the KHK Stock Gear series.

Catalog excerpts

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 Specifications [Caution on Product Characteristics] © 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 normal direction for the ring gear in mesh with a 30 tooth SS type spur gear. © Although the inside diameter of these gears are made to H8 tolerance, since the ring shape is easily deformed, some error may occur beyond the stated tolerance. [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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