81140 Crane Spherical Thrust Roller Bearings

Shenyang Wanzhong Jingong Bearing Co., Ltd., specialized in manufacturing variety of high precision bearings used in light-, medium- and heavy-dutyrotatingmachinery.

Today we would like to introduce you our certain core technology of producing technology totally different from other common plants for your better understanding of our bearings as below:

1. Inspection of Chemical Composition: strictly control chemical composition, such as carbon, chromium, manganese and silicon, well guaranteed structure and hardness of our bearings, which is fundamental and effective warranty of high quality bearings.

2. Processing Technic of Steel Ball and Rings: we request our rings must be forged and steel ball must be cold heading or hot rolled, which is much better than cast rings and balls in density and strength.

3. Options of Grinding Wheel:grinding process is an important step, so we select the best grinding wheel from Japan.

4. Ultra Grinding Process:level of ultra grinding process directly decides precision, performance and lifetime of bearings, so we imported 5 sets accurate grinding machinery made in Germany.