Company

Welcome to us.

ETB started business with Turned Ring and Tapered Rollers Bearing in the industry. Then we were well known for Tapered Rollers Bearing.To meet different needs of customers all over the world,ETB expanded product offerings.Now, ETB becomes a comprehensive bearing service company, providing bearings, bearing components and bearing equipment. Many domestic and overseas leading brands in this industry are choosing us as their OEM supplier.In 2017, we established our branch in Changsha city for enjoying more policy benefits of “the Belt and Road. In the meantime, we are closer to our end users in Changsha – Sany Group and other mechanical companies.

Our Production Process

Forging

We adhere to rigid requirements when selecting suppliers for forging processing. These medium to large sized suppliers are from bearing forging industry cluster, and are capable of annealing and rough turning by themselves, as well as conducting raw material inspection in their own metallographic inspection labs.

Turning

The CNC turning machines are equipped with multiple cutting tools, which enable workers to turn multiple positions and dimensions at one time. This helps achieve precise control of dimension tolerance, shortened machining time and increased capacity.

Heating Treatment

Protective atmosphere is applied in this process.Advanced salt and oil furnaces for the bearing industry are equipped.The two methods of heating treatment can meet different requirement based on customers` budget.In the end,either of the methods can ensure required hardness and metallographic structure.

Metallographic structure and distortion are inspected during the heating treatment process.If required by the customer,we are capable of conducting destructive metallographic inspection for finished bearings in our metallopraphy labs.

Grinding and Assembly

Our grinding machines are from well-known Chinese companies such as Sunrise,Beain.Precise grinding of the raceway adopts coordinate partition positioning.It divides the raceway into up to 60 tiny area.Therefore, an ideal profile of the raceway can be maintained by processing of the dimension and shape of the raceway in each tiny area.

The super-finishing machines are from Beain.Raceway and Rib super-finished can be processed at one time.

Our team perform two procedures for assembly:Dimension Measurement and Assembly.Basic dimension of rings will be measured 100% before assembling finished bearings.Dimension of the goods will be rechecked before delivery.

Quality Control

Our Metallography Lab and Measuring Center,fitted with a complete set of instruments and tools, are capable of controlling metallographic struction and dimension parameter in the production.

Quality Control of Oursouced parts

All incoming parts such as forged ring,rollers and finished bearing are inspected.Our labs and Measuring Center guarantee material quality and dimension accurancy.In addition,our experienced technologists regularly check the dimension and rotation parameter on the site.