internal gears Co., Ltd.

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internal gears Co., Ltd.



We’d like to give our customers more comprehensive information and more professional procurement advice.

Professional team

We have professional management team, and our factory has professional production team.


No need to afraid of the after-sale service. We can make three-side agreement with the factory and customers.


Ball Mill Internal Spur Gear

We are a professional manufacturer of large, medium-sized gear, gear box and high precision gear. Having the ability of machining 3.2 meters diameter, modulus 1-40MM of spur gear, helical gear, herringbone gear, chain wheel, worm gear and processing bevel gear, 1M-12M modulus spiral bevel gear manufacturing capability. The 1M-6M gear precision can reach 5 level accuracy.

Customized Case Hardening Steels Internal Ring Gear

Note:The technical parameters can be in accordance with the requirements of customers production.

Custom internal planetary gear

Our factory produce various sprockets, rack and pinion, turbine,synchronousround.umbrella. The pictures show are my factoryprocessing production . our factory has ordinary lathe, CNC lathe, hobbing machine, cutting teeth machine,drillingmachine,broaching machine . 

Custom Internal Nylon Plastic POM Gear

Based on customer requirements, we can do Plating(Zinc plated, Nickel plated, Chrome plated,etc), polishing(precision can reach
+/-0.005mm), knurling, anodizing, Black Oxide, heat treatment, sandblasting, powder coating, etc.
Precision Processing

Frequently Asked Questions

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Are you trading company or manufacturer ?

Our group consists in 3 factories and 2 abroad sales corporations.

Do you provide samples ? is it free or extra ?

Yes, we could offer the sample for free charge but do not pay the cost of freight.

How long is your delivery time ? What is your terms of payment ?

Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.