Four point separable design angular contact ball bearings for Machine, Equipment

Four-point contact ball bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads acting in both directions. Radial loads can be supported up to a certain fraction of the axial load. These bearings take up considerably less axial space than double row bearings.

four-point contact ball bearings of the QJ design have a contact angle of either 35° or 45°. The inner ring is split. This enables a large number of balls to be incorporated in the bearing thus giving the bearing high load carrying capacity. The bearings are of separable design, i.e. the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves.

Beijing RKF Mechanical & Electrical Equipment Co., Ltd., is an manufacturer and export-oriented enterprise, specializing in marketing various types of bearings. Our first factory was established in 1995 in Hebei province. We mainly did domestic business in the early years and since 2005 we have started to develop the oversea markets. Our products include Deep Groove Ball bearings, Cylindrical Roller Bearings, Tapered Roller Bearings, Self-aligning Ball Bearings, Insert Bearings, Thrust Ball Bearings, Needle Roller Bearings, etc. We have obtained ISO9001 and ISO14001 certifications.

We have two factories. One is located in Hebei province and the other one Shandong province, both with the big warehouses. We set an office for exportation in Beijing, the capital city of China, with an smaller warehouse here, more than 100 square meters. We have set up wide business channels around the country and cooperated with Russia and Vietnam for many years.

To ensure the quality of every piece of bearings, we not only choose every manufacturer very carefully and strictly, but also have our own institution to do inspection. All of the workshops are well equipped with automatic machine and precision testing machine.

With a satisfactory variety of products, superior quality and excellent after-sale services, we enjoy a high reputation among both domestic and foreign customers. We obey the rule: " high quality - low price - sincerity - customer", and will continue to follow its original philosophy to furnish high quality and reliable products.

Welcome the friends all over the world to develop and cooperate together!