1. Bearing designing: Guomai has our own bearing R&D team and adopts Germany technology. This enables us to provide OEM and ODM service to you.
2. Production process: We strictly follow the 5S production process and acquired ISO9001:2008 quality management system certificate. Besides, we introduced from abroad world famous brands lathes and heat treatment equipment, this enables us to provide high precision bearings with similar quality to world famous brands such as SKF,FAG,TIMKEN,NSK,NTN,KOYO,NACHI and so on.
3. Materials: To ensure the high quality of bearings, we use high carbon chrome bearing steel which provides high rigidity, and high resistance to abrasive wear to produce the bearings. Low carbon cold rolled steel and low carbon stainless steel is also used according to customers' requirements.
4. Quality inspection: All bearings will be strictly tested before packing. We have Taylor talysurf, hardness meter,clearance detector,vibration(speed) measuring instrument,roundness instrument to guarantee all bearings are qualified with the standards.
5. Lubricants: Suitable lubricants are used to protect the bearings from oxidation or corrosion of parts thus enable our bearings with longer lifetime, low noise and better high temperature performance. Selection of lubricants is generally governed by the bearing application. Right choice of high quality lubricants could prevent metal to metal contact and conduct heat away from the bearings.
6. Packing: Guomai bearings pay attention to every detail in the bearing production process. We adopt plastic bag, Kraft paper, thick paper box and cartons to protect the bearings from unexpectable damage during the transportation and warehouse stock.
7. Factory direct marketing: We are the factory and not the distributor or trading agent, so we could provide the same quality with competitive price.

What is Overall Eccentric Bearing?

Overall Eccentric bearing is a an beneficial variant of cylindrical roller bearings. It has the same simple structure, including an outer ring, an inner ring, rolling element and rolling element basket(cage/retainer).

The hole of inner ring is eccentric and there is a longitudinal keyway on the medial wall of eccentric hole.

It is able to achieves eccentric function without eccentric axis/shaft. It makes the eccentric mechanism greatly simplified, and enables the eccentric mechanism machining to save labor, time, to reduce the manufacturing cost of eccentric mechanism.

Because of special eccentric structure characteristic, the overall eccentric bearings have better vibration absorption and overload protection ability, higher accuracy and longer lifetime compared with the conventional rolling bearings.

According to the roller rows, overall eccentric bearings could be divided into single row,and double row eccentric bearings.

Overall Eccentric Bearings Applications
*Electric motors
*Locomotive parts
*Machine tool spindle
*Internal combustion engines
*Electricity generators
*Gas turbines
*Gear boxes
*Rolling mill
*Vibrating screen
*Reducer
*Petrochemical machinery
*Textile machinery
*Metallurgy machinery
*Mining machinery 
*Steel mill machinery

Parameters of overall eccentric cylindrical roller bearings specifications

Overall Cylindrical Roller Bearing 250752202K

Guomai Bearing Factory Introduction

Shandong Guomai Bearing Co.,Ltd(hereinafter referred to as Guomai) was established in 1999, with more than 20 years of bearing research and manufacturing experience. The factory covers an area of 16000 square meters,7000 of which is manufacturing area and the other is office and warehouse. Guomai has large stock for normally used bearing models and this enables us to deliver the bearing to customers within the shortest time.

There are total 160 staffs, 6 automatic bearing assembly lines,116 CNC machines and 22 sets of precise inspection instruments. We not only have our own R&D team but also cooperate with Henan University of Science and Technology, Luoyang Bearing Research Institute to develop new bearing designing and manufacturing technology.

In addition to conventional bearings, Guomai also provides OEM and ODM service to our respectable customers to meet their individual requirements.We introduced advanced milling, turning machines, heat treatment equipment and bearing testing machines to guarantee the quality of the bearings because we know "Quality is the life of Guomai" .Now our top products include taper roller bearing, angular contact ball bearing, deep groove bearing ,spherical bearing and cylindrical roller bearing with P5, P4 accuracy grade.

After so many years of developing, Guomai has built up an excellent sales network within China. Our two bearing brands "CVZ" and "Bentu" are well known and have high reputation within the industrial equipment and components field. Moreover, with confidence of our bearing quality, we started to export our bearings 4 years ago. Customers from Europe, North America, Middle East, Southeast Asia and Africa have enjoyed the happiness our bearings brought to them.

Guomai Bearing always upholds "WIN-WIN" spirit and believes in "Details determine success" philosophy, and keep improving bearing quality in the past 20 years. Some series of our bearings have similar quality with SKF, NSK, Timken, NACHI, KOYO, NTN and other world famous brands but with lower price.

Looking to the future, Guomai will insist on the technology innovation and processing levels to provide the most appropriate bearing products and service to our customers.

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