Internal Spur Gear

Internal Spur Gear
Shape: customizable
Material: stainless steel, alloy, customized



Internal Spur Gears, unlike spur gears, have the teeth generated on the inner diameter, Of the blank. They are generally more robust and more efficient than the mating pinion gear. The pitch diameter of the internal Gear must be at least 1.5 times the P.D. of the mating pinion. If this condition is not met, interferences between the tips of the teeth will occur.

Internal gears allow designers to achieve higher contact and drive ratios than standard spur gears at shorter center distances. They also enable a velocity change without a directional change, which would require an idler gear with classic spurs.

Product Specification

Tooth Form As per Customer requirement
Material As per Customer requirement
Shape As per Customer requirement
Grade As per Customer requirement
Technique As per Customer requirement
Pressure Angle As per Customer requirement
Diameter As per Customer requirement
Size As per Customer requirement
Minimum Order Quantity 1 Unit

Applications of Internal Spur Gears

  • Rollers
  • Electric Screwdrivers
  • Pumps
  • Positioning Equipment
  • Automotives
  • Bicycle components

We are the manufacturing and Exporter of Internal Spur Gear. We supply all over the world with quality products. We can custom manufacture internal gears from a variety of materials that include: steel, stainless steel, heat-treated steel, sintered steel, tool steel, ductile iron, gray iron, brass, bronze, copper, cast iron, aluminum, plastic & phenolic. Services include precision blanking, sawing, milling, drilling, tapping, broaching & finishing.

Why Choose US?

1. since we handle all steps in one location, our process is speedy, cost-efficient, and well-controlled. Equip our factory with 30set CNC,15set CNC turning, and 10setSheet Metal Fabricationmachine to assure the customers of high-quality metal machining parts.

2. we have focused on CNC machining since 2007, with rich experience in our field. There have many anvancedequipments and a first-class working team, which promotes good corporate culture and forms a comfortable working atmosphere.

3. ln order to manage thediverse production sets out gear, the entire process is logged into a computerized system. Every step can be followed closely, from receiving the orders to shipping out the products. Customers will get satisfying products in the requested time.


Q1: How can I get a quotation?

A1: Please provide 2D (or 3D) documents or samples. Drawing format: IGS, STEP, STP, JPEG, PDF, DWG, DXF, CAD, etc.

Q2: What is your minimum order quantity?

A2: There is no minimum order quantity limit; welcome to try orders before mass production.

Q3: How about quality control?

A3: The production operator self-inspects each process. Sampling inspections and final inspections are performed by Q.C., and the defective rate is controlled within 1% or even lower.

Q4: Can I print my brand logo on your products?

A4: OEM orders are very welcome. Please write us the detailed information and location of your logo to send us an inquiry.

Q5: Are you a manufacturer or a trader?

A5: We are a factory with ten years of experience, and we try our best to provide competitive prices and professional services.

Hot Tags: Internal Spur Gear, Material customization, gears, internal gears, Chinese suppliers, manufacturers, factories, customization, precision company information

Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

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.

pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages