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                Hotline: 13322237070

                NewsLocation : home - News
                The classification of the bearing
                Release time :2014-06-10

                Sliding bearing

                Sliding bearing is not share outer ring no rolling body, are generally made of wear-resistant materials. Often used in low speed, overload and charging mechanical rotating parts of the lubricating oil and maintenance difficulties.

                Joint bearing

                The sliding contact surface for the spherical joint bearing, mainly is suitable for the swing movement, tilted movement and rotation motion.

                Rolling bearing

                Rolling bearing can bear the load according to its direction or nominal contact Angle of divided into radial bearing and thrust bearing. The radial contact bearing as nominal centripetal bearing contact Angle 0, radial angular contact bearings for the nominal contact Angle is greater than 0 to 45 centripetal bearing. Axial bearing is nominal contact Angle is 90 thrust bearing, thrust angular contact bearings for the nominal contact Angle is greater than 45 but less than the thrust bearing of 90.

                According to the shape of the roller can be divided into ball bearings and roller bearings. Roller bearing press roller types are divided into: cylindrical roller bearings, needle roller bearings, tapered roller bearing and spherical roller bearing.

                According to its work will be adjust when the heart is divided into self-aligning bearing raceway is spherical shape, can adapt to the Angle between the two raceway axis deviation and Angle motion of the bearing and self-aligning bearing (rigid bearing) - can the impedance between the raceway bearing axis Angle deviation.

                According to the number of columns of roller is divided into single row bearing, double row bearings and bearing.

                According to its components (ring) can be separated into separable bearing and integral bearing.

                According to its structure shapes (such as presence of loading slot, with or without inner and outer ring and the shape of a ring, the structure of the guard, even the presence of cage, etc.) can also be divided into a variety of structural types.

                According to the diameter size is divided into miniature bearing (< 26 mm), small bearings (28-55 mm) (60-115), large, medium and small sized bearings (120-190 - mm), large bearing (200-430 - mm) and oversize bearings (> 440 mm).

                According to the application domain is divided into motor bearings, rolling mill bearing, main bearing, etc.

                According to the material can be divided into ceramic bearings, plastic bearings, etc.

                Deep groove ball bearing

                Deep groove ball bearing is the most representative of the rolling bearing. Compared with other kinds of bearings of the same size, such bearing small friction coefficient, high limit speed, simple structure, low manufacture cost, high accuracy, need not often maintenance, and large size range and a lot of forms, is the most widely used type of bearings. It mainly bear radial load, also can absorb a certain amount of axial load. When its only bear radial load, the contact Angle is zero.

                Deep groove ball bearings mounted on a shaft, within the scope of the axial clearance of bearing, can limit shaft or the shell axial displacement in two directions, so can in two-way axial positioning. When deep groove ball bearings with larger radial clearance, with the performance of angular contact bearings, can withstand a large axial load. Under axial load large high-speed operation conditions, deep groove ball bearings have more advantages than thrust ball bearing. In addition, this class also has a certain bearing capacity, when compared with the shell hole '2 ~ 10', can still work normally, but had certain influence on bearing life.

                Angular contact ball bearings

                Traditionally known as represented by 36, 46 type bearing six types of bearings, angular contact usually is 15, 25 degrees, 45 degrees, and so on.

                Self-aligning ball bearing

                Self-aligning ball bearing is two race between inner ring and groove for spherical outer ring, equipped with balls of ball bearings. On the surface of the outer ring raceway curvature center and bearing center consistent, so with automatic self-aligning ball bearing the same tone heart function. In there was a deflection axis, a hood, can automatically adjust, not to increase the bearing burden. Spherical roller bearings can withstand radial load and two direction axial load. Self-aligning ball bearing radial load capacity is large, suitable for heavy load, impact load. Inner circle diameter is tapered bore the bearing, it can be installed directly. Or the use of set cover, remove the cylinder installed on the cylinder axis. Keep rack stamping steel cage, polyamide forming. Self-aligning ball bearing applies to carry heavy load and impact load, precision instruments, low noise motors, automobiles, motorcycles, metallurgy, mill, mining, petroleum, paper making, cement, sugar and other industries and general machinery.

                Thrust ball bearing

                Thrust ball bearing can be divided into two kinds of unidirectional and bidirectional. They can only carry axial load, will not bear any radial load. Thrust bearing ring and the living circle. Ring and shaft sleeve, living circle bearing on the bearing seat. Ring and rolling body usually adopt high strength, good abrasion resistance of rolling bearing steel manufacturing, surface hardness after quenching should reach HRC60 ~ 65. Maintains a multi-purpose made from mild steel stamping, also can use copper alloy fabric bakelite and plastic manufacturing.

                Two-way thrust angular contact ball bearing

                Double row circular cone roller bearings

                Thrust angular contact ball bearing contact Angle 60 ° commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, mainly used for precision machine tool spindle, commonly used together with the double row cylindrical roller bearing, it can be subject to bi-directional load and have high precision, good rigidity, low temperature, high speed, convenient installation.

                Thrust roller bearings

                Including thrust cylindrical roller bearings, thrust taper roller bearings, thrust needle roller bearings and thrust spherical roller bearings.

                Needle roller bearing

                Needle bearing with fine and long roller (3 ~ 10 times the diameter of the roller length is, no more than 5 mm in diameter), so the radial structure is compact, its diameter and load capacity at the same time, with other types of bearing outside diameter to a minimum, especially suitable for the limited size of the radial installation support structure. Needle roller bearing according to the use of different occasions, can be used without the inner ring of the bearing or needle roller and cage components, at this time to suit the bearing surface of the surface of the shaft and the shell hole directly as inner and outer rolling bearing surface, in order to ensure the load capacity and operation performance and you have the same ring bearing, axis or shell hole hardness on the surface of the raceway, the machining accuracy and surface quality and bearing ring. Use combination of needle roller bearing is a centripetal needle bearing and thrust bearing components of bearing unit, the compact structure small volume, rotation of high precision, high in can bear radial load at the same time absorb a certain amount of axial load. A variety of forms, wide adaptability and product structure, easy to install. Combined needle roller bearing is widely used in machine tools, metallurgical machinery, textile machinery, printing machinery and other machinery and equipment, and can make the mechanical system design is very compact and nimble.

                Insert ball bearing units

                Outer spherical ball bearing outer diameter for spherical surface, can play the role of the heart.

                Spherical roller bearings

                Self-aligning roller bearing has two columns symmetric spherical roller type, mainly bear radial load, but also can carry axial load in either direction, but can't afford to pure axial load. The bearing outer ring raceway is spherical shape, so the self-aligning performance is good, can compensate the alignment error, when axial stress bending or install different heart bearings can still be used normally, so vary with different bearing size series, generally allowed by the self-aligning Angle from 1 to 2.5 degrees, the type of bearing load capacity is larger, besides can bear radial load bearing can withstand the axial load, two-way role has good impact resistance, typically spherical roller bearing is allowed to work speed is low. Suitable for overloading or work under vibration load.

                Flange bearing

                Flange bearing on ocean shipping with flanges flanges. Characteristic is can simplify the structure of the host, to reduce the size of host, make it easier for bearing positioning.

                Arrange ushering bearing

                The centripetal bearing with a combination of a component, with the bearing axis parallel to the surface of the support a mounting screw on the floor.

                Composite bearing

                By the above two or more at the same time a set of bearing bearing structure of rolling bearing. Such as needle roller and cylindrical roller bearings, thrust needle roller and thrust ball bearings, needle roller and angular contact ball bearings, etc.

                Linear bearing

                Linear bearing can be divided into linear bearing metal and plastic linear bearing.

                Linear bearing is a kind of metal at low cost production of linear motion system, used for unlimited travel used with cylindrical shaft. Because point contact ball bearing with shaft, so using the load is small. Steel ball with minimal friction spinning, which can obtain high precision of smooth movement.

                Plastic linear bearing is a kind of system, the linear motion of the self-lubricating properties in the metal linear bearing is the biggest difference is that the metal linear bearing rolling friction, bearing and cylinder axis is point contact, so it is suitable for low load high speed movement; And plastic linear bearing is a sliding friction between bearing and cylinder shaft is surface contact, so the suitable for high load in the low speed movement.

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