1.Material: C45 、S45C、SCM440 etc.

2.Surface Treatment:Blackening ,Surface hardening treatment,Quenching treatment,Drawing temper,electroplating processing Carburizing and quenching treatment etc.

3.Application: One of internal gear is a way of gear drive, it is mainly used in the coupling.

4.Characteristic: The gear is widely used in the speed reducer, such as parallel shaft helical gear reducer, gear reducer, motor secondary gear reducer, etc.

5.Sprocket models: contains non-standard sprocket (custom) according to customer's drawings, standard sprocket (American standard and metric).

6.Package: Wooden Case/Container and pallet, or made-to-order

If you're looking for the steel screw gears modules 2.5~4 made in China, welcome to buy the product in stock from our factory. We're one of the professional manufacturers and suppliers in China. And the free sample and the customized service are also available.