Linear plain bearings and plastic linear bearings

Linear plain bearings are linear locating bearing unlimited stroke length. These linear guidance systems Miniature plain guidance system may be, Permaglide linear plain bearings and Permaglide linear plain bearing units as well as flat guidance system. Plastic linear bearing is a self-lubricating properties of linear motion system, the biggest difference is the metal with the metal linear bearings linear bearing is rolling friction, is the point of contact between the bearing and the cylinder axis, so this is suitable for low load speed movement; and plastic linear bearings are sliding friction, it is surface contact between the bearing and the cylinder axis, so this for high-load low-speed movement.

Linear motion bearings

Linear motion bearings is a low-cost production of linear motion system for unlimited travel in conjunction with the cylinder axis. Since carrying the ball point contact with the shaft, so the use of small load. Minimal friction ball rotation, which can get high-precision smooth movement. In the rolling bearing, the bearing ring is rolling unit (rolling elements) apart, in plain guidance systems the movable part of the slide in a static rail or shaft. Depending on the type of track system, the sliding layer on a movable or rigid good components. Lubricating sliding layer embedded to achieve lubrication purposes.

Linear bearing

Linear bearing is a linear motion system for linear travel with the cylinder axis. Since carrying the ball point contact with the bearing housing, the ball rolling with a minimum of friction, and therefore has a small friction linear bearings, and relatively stable, with the bearing speed change, can achieve high sensitivity, high accuracy smooth linear motion. Linear bearings consumption also has its limitations, the most important is the impact of poor load bearing capacity, and the carrying capacity is also poor, followed by linear bearings in large high-speed motion vibration and noise. Linear bearings quick and easy selection have included gifted automation. Linear bearings are widely applied to the sliding parts precision machine tools, textile machinery, food packaging machinery, printing machinery and other industrial machinery. Since carrying the ball in contact with the bearing point, so the use of small loads. Minimal friction ball rotation, which can get high-precision smooth movement.

High speed bearings

Bearing high-speed, medium-speed and low-speed but not with the speed given to a given line speed, large bearing hundreds turn even high speed bearings. Where high-speed bearings claim bearing swivel system through precise balancing shaft and the bearing seat hole installation site should have a higher than normal requirements for dimensional accuracy and shape accuracy, NACHI bearing especially concentricity and stop shoulder on the housing bore or shaft neck vertical, and in consideration of these problems, the same factors must be noted that the high-speed and high-temperature operation is bearing factor.

Miniature ball bearings Instructions

Miniature ball bearings Instructions:
1, open-bearing means bearing with no closures of.
2, closed on both sides of the bearing means bearing with closures or closures, ZZ said both sides with a metal lid, 2RS said both sides with closures, customers can choose different closures or closures according to their own requirements.
3, the same size bearings, customers can choose different materials, grades. Materials were: bearing steel, carbon steel, stainless steel and plastics.
4, the following dimensions according to international standards, the basic dimensions of the bearing, as customers have different requirements, we can customize.
5, the same bearing a variety of different symbols and called, make sure their needs bearing size

The limit of the thin wall bearings contact Angle

The limit of the thin wall bearings contact Angle is 120 °. When the sliding bearing wear and tear to the contact Angle, fluid lubrication will be destroyed. So don't affect the sliding bearing compressive conditions under the premise of the smaller the contact Angle is better. From the theoretical analysis of the friction torque, when the contact Angle is 60 °, minimum friction torque, so, the speed is higher than 500 r/min of miniature linear bearings, contact Angle 60 °, speed is less than 500 r/min of sliding bearing, contact Angle can be used in a 90 °, 60 ° is used.

Shaft neck and the actual situation of the sliding bearing surface contact, available per unit area of the actual contact points. The more contact, more and more even, said sliding bearing scraping the research better, on the other hand, sliding bearing scraping the inquiry is not good. In general the more the more close contact point, research difficulty is large. Production should be based on the performance of the sliding bearing and working conditions to determine the contact point

The linear plain bearings grease lubrication cycle:

By accident, linear plain bearings not important parts: shaft speed < 200 r/min, the lubrication cycle 5 days; Shaft speed > 200 r/min, the lubrication cycle 3 days.

Continuous work: shaft speed < 200 r/min, the lubrication cycle 2 days; Shaft speed > 200 r/min, the lubrication cycle 1 days.

Continuous work, operating temperature less than 40 ℃ : shaft speed < 200 r/min, the lubrication cycle 1 days; Shaft speed > 200 r/min, the lubrication cycle once per class.

Continuous work, operating temperature 40-100 ℃ : shaft speed < 200 r/min, the lubrication cycle per shift once; Shaft speed > 200 r/min, the lubrication cycle every second.

The journal as uniform close contact with mobile crane bearing, and must fit clearance.

Refers to the journal and sliding bearing contact area of the central Angle. Contact Angle is not too big nor too small. Contact Angle is too small will make sliding bearing pressure increases, serious when they make the sliding bearing produces large deformation, accelerate wear, shorten service life. Contact Angle is too big, can affect the formation of oil film, can't get good fluid lubrication.