Differences plain bearings and rolling bearings and lubrication Conservation Measures

Sliding bearing, sliding bearing, bearing under sliding conflict operations.Sliding bearing operation stable and reliable, no noise.Under the condition of liquid compound lubrication bearing body, sliding surface can be separated by lubricating oil without direct touch to touch, can also greatly reduce conflict lost ground loss and appearance, the oil film has surely vibration absorbing ability.But the conflict of starting resistance is bigger.The bearing parts of the shaft are called journal, and shaft neck match parts called bush.In order to improve the bearing outburst appearance of sliding bearing properties and in its appearance cast anti-friction material layer is called the bearing bush.Bearing and the bearing bush data collectively known as the sliding bearing.Commonly used sliding bearing has a bearing alloy (also called babbit or white metal), wear resistant cast iron, copper and aluminum alloy, powder metallurgy materials, plastics, rubber, hardwood and carbon – graphite, teflon (PTFE), modified polyformaldehyde (POM), etc.Sliding bearing applications generally under the condition of low speed and heavy loading conditions, or is to protect the maintenance parts and charging lubricating oil difficult assignments.
Will work between shaft and shaft seat sliding into conflict, conflict so as to reduce conflict lost a fine mechanical components, called the rolling bearing (rolling bearing).The rolling bearing generally by the outer ring, inner ring, rolling body and cage.During which the effect of inner ring is a merger with shaft match with the shaft rotation, effect of outer ring is self-contained, cooperate, support effect, the roll body is by means of uniform cage will spread between inner ring and outer ring, rolling body shapes directly affects the size and quantity of the rolling bearing using performance and life, keep the frame can make the even distribution of the rolling body, prevent the rolling body drops, the guide roll body spins of lubricating effect.
The rolling bearing using protection facilities, operation reliable, starting performance is good, can carry higher under the moderate speed.Compared with sliding bearing, the rolling bearing’s radial size is larger, vibration reduction ability is poorer, high speed when life is low, noise is bigger.Rolling bearing the centripetal bearing (first bear radial force) generally consists of inner ring and outer ring, rolling body and roll cage of four points.Inner ring tight set on the shaft neck and with shaft rotation, outer ring is installed in the bearing hole.Within the peripheral and outer ring, ring week all have a race.When relative roll on inner and outer, the outer ring, rolling body roll on roll, they the cage from isolation, prevent conflict with each other.Thrust bearing ring and the living circle.Ring and shaft sleeve, living circle bearing on the bearing seat.Ring and roll body generally choose high strength, good abrasion resistance rolling bearing steel production, the appearance after quenching hardness up to HRC60 ~ 65.Maintains a multi-purpose made from mild steel stamping, also can choose copper alloy fabric bakelite or plastic etc.
Roll bearing and sliding bearing of the differences between the first appearance on the structure, the rolling bearing is to rely on the roll body roll to support roll axis, so the touch area is a point, the rolling body, the more touching point nine more;Sliding bearing is to rely on a smooth surface to support roll axis, so touching part is a plane.Followed by the movement method is different, the movement of the rolling bearing method is rolling;The movement of the sliding bearing is the sliding, so conflict situation is completely different.