Roller bearings and ball bearings are rolling bearings. All simple terms, a rolling body is a steel column. Another is the ball rolling, that is, the so-called ball.Said first roller bearing:Rolling bearing is a kind of cylindrical roller bearings to the heart. Cylindrical roller in line contact with the roller bearings. Load capacity, mainly bear radial load. Rolling ring wall with small friction, suitable for high-speed rotation. Whether under the ring wall, divided NU, NJ, NUP, N, NF

Self-Aligning Roller Bearings (22205) With the same center as the bearing, the spherically formed outer ring raceway can made self-alignment.Their rolling elements linearly come into contact with the raceways of inner ring and outer ring.The bearings can take greatly radial load, suitable for heavy machinery used in mining, metallurgical, paper-making and instructing, etc., industry. All types bearings can be SS stainless steel bearings too.

Share of machinery bearing the space and location, in the mechanical design, the general first determine the shaft size, and then, depending on the shaft bearing sizes. Axis is usually chosen small ball bearings, roller bearings, shaft selection. However, when the diameter of bearing in the machine direction is limited, then use needle roller bearings, special light and ultra-light series of ball or roller bearings;

Roller Bearing type many, the structure type, tolerance level, material selection and processing methods are different, but the basic manufacturing process contains the following:   Bearing parts manufacturer - bearing parts inspection - bearing parts demagnetization, cleaning, rust - bearing assembly - Bearing product inspection - bearing product demagnetization, cleaning - packing fight oiled bearings finished product storage.

Roller bearings  and automatically compensate the relative deviation of the center line of bearing to the bearing capacity of the normal working state of tune is called Rolling Mind. As the bearing bore and shaft machining and installation errors, and loaded songs deformation around the rear axle, shaft and inner and outer axis can not maintain the overlap in their work, would produce a certain deflection.

Bearing ring cracks in the four reasons:Engine oil is rather more than less errors do not surface Rockwell hardness scale, there are three to choose from. No matter how all the possible types of grease, oil check and fill methods, pollution refers to the dust, linear bearings do not rotate load to bear, resulting in greater power loss. Their contact area is always to produce elastic deformation, while also allowed to combine the universal groups matching bearings,

 Entity type needle roller bearings: a basic structure of the inner bearing NU type cylindrical roller bearings the same, but with needle, size can be reduced, and can withstand large radial load bearing without inner ring should have the right precision and hardness the axis of the mounting surface to use as a raceway. Main application of the cage: steel stamping cage Main use: car engines, transmissions, pumps, crawler excavators wheel,
 

Bearing type and feature E-type cylindrical roller bearings Main dimensions and bearing the same general import, but the roller diameter, length, number of increased load bearing capacity to increase correspondingly.With symbol "E" number on the basic NTN bearings in order to differentiate. Compared with the large load capacity, its design is very light. Because the bearing diameter and bearing the standard import different,