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DS

Product catalog summary

Specifications:
The document provides detailed specifications for injection molded spur gears. The gears are made from Duracon acetal (M90-44) with a precision grade of JIS grade N12 (JIS B1702-1: 1998) and JIS grade 8 (JIS B1702: 1976). They have a standard full depth gear teeth with a pressure angle of 20° and a tooth hardness of 110 to 120 HRR. No heat treatment is applied.

Product Characteristics:
The allowable torques are calculated based on assumed usage conditions. Backlash values are theoretical for identical gears in mesh. Bore tolerance ranges from -0.05 to -0.30, with possible positive values at the central portion. Dimensional precision can be found in the 'Tolerance of Injection Molded Products' table.

Product Range:
The document lists various catalog numbers for gears with different modules (0.5, 0.8, and 1), number of teeth, shapes, and dimensions such as bore, hub diameter, pitch diameter, outside diameter, face width, and hub width.

Metal Bushings:
Sintered metal bushings are available for use with these gears, made from oil-impregnated sintered bronze. The document provides dimensions for these bushings, including inner and outer diameters and length.

Cautions:
Secondary operations on injection molded products should be avoided due to potential air bubbles within the material. The document also provides a table for the tolerance of injection molded products, specifying the range and tolerance in millimeters.

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 Injection Molded Spur Gears DS Other Bevel Worm Screw Bevel Miter CP Racks Dacks Internal Helical Spur Products Gearboxes Gear Pair Gears Gears Gears & Pinions Gears Gears Gears * The precision grade of this product is equivalent to the value shown in the table. [Caution on Product Characteristics] © The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see [Caution on Secondary Operations] © Injection molded products may have air bubbles inside of the material; please avoid performing secondary operations. 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 bore tolerance is generally -0.05 to -0.30 but may be + value at the central portion of the hole. @ To find dimensional precision, see the table "Tolerance of Injection Molded Products".

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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 Injection Molded Spur Gears [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 backlash in the normal direction of a pair of identical gears in mesh. © The bore tolerance is generally -0.05 to -0.30 but may be + value at the central portion of...

Open the catalog to page 2