Nodular cast iron bearing spacing ring

Abstract

The invention provides a nodular cast iron bearing spacing ring. The nodular cast iron bearing spacing ring is made of nodular cast iron instead of bearing steel surface nitriding, alloy cast iron, 30# steel tufftriding treatment and powder metallurgy; and problems that when a spacing ring is manufactured by an existing material and an existing method, machining difficulty is large, size precision is not liable to meet requirements, manufacturing cost is high, the alloy cast iron and the powder metallurgy material are poor in toughness and easy to break, and nitriding pollutes the environment are solved. By the nodular cast iron bearing spacing ring, manufacturing difficulty and cost of bearings are reduced, the precision of the bearings is improved, the service lives of the bearings are prolonged, and environmental pollution caused by machining of raw materials is avoided.

Description

technical field [0001] The present invention uses a new material to replace the raw material to manufacture a component in the bearing, which reduces the difficulty and cost of bearing manufacturing, improves the precision and service life of the bearing, and avoids environmental pollution during raw material processing. Background technique [0002] Traditional bearings consist of four parts: inner ring, outer ring, cage and rollers. At present, the design of double row spherical roller bearings has been improved, and the three fixed small stops on the inner ring in the original structure have been cancelled. side, and the use of movable spacers simplifies the manufacturing process, and makes the load on the bearings evenly distributed on the rollers and rings. The spacers do not bear any load. The spacers of domestic three types of bearings have used bearings Steel surface nitriding, alloy cast iron, 30# steel soft nitriding treatment and powder metallurgy die-casting, the...

AI Technical Summary

Problems solved by technology

[0002] Traditional bearings consist of four parts: inner ring, outer ring, cage and rollers. At present, the design of double row spherical roller bearings has been improved, and the three fixed small stops on the inner ring in the original structure have been cancelled. side, and the use of movable spacers simplifies the manufacturing process, and makes the load on the bearings evenly distributed on the rollers and rings. The spacers do not bear any load. The spacers of domestic three types of bearings have used bearings Steel surface nitriding, alloy cast iron, 30# steel soft nitriding treatment and powder metallurgy die-casting, the main problems are: ① Difficult processing, difficult to meet the dimensional accuracy requirements; ② High production cost; ③ Alloy cast iron, powder metallurgy materials Poor toughness and easy to break; ④ Nitriding pollutes the environment