2014年9月29日星期一

If the bearing inner and outer angle of inclination between

If the bearing inner and outer angle of inclination between, will affect bearing life, also causing loss of precision bearings running, running noise increases. Double row angular contact ball bearings generally use nylon cage or solid brass cage. When the double row angular contact ball bearings installed should be noted that while bearings can  high precision bearing  withstand axial load, but if one side of the ball gap, you should be careful not to let the main axial load side through the gap Mizobe. Bearings should pay attention to the side without the ball gap to bear the main load raceway.bearing manufacturer More angular contact ball bearings are Bearing manufacturing machine  manufactured abroad bearing manufacturers, domestic applied to imported equipment such as more angular contact ball bearings 3204RS, etc.
Think back to back, back to front contact contact more simple, narrow side out, including wide-brimmed, another broadside included, narrow home, is back to back contact.

2014年9月22日星期一

Slewing bearing Crossed roller bearings are roller

Crossed roller bearings are roller between the inner and outer wheel intervals intersecting at right angles to each other arranged. They can withstand the load from all directions (such as an axial thrust or momentum load, etc.). Due to the roller surface into line contact with the rail, therefore, the possibility of bearing a load and elastic Bearing life testing machine  deformation is small. This type of bearings are widely used in industrial automation, such as robots, machine tools and medical facilities, etc., need high rigidity, compact and high-speed still ensuring accurate of occasions. In cross roller bearings, cylindrical roller in was due to a 90 ° V-shaped groove raceway is vertically aligned with each other through a spacer retainer, so a cross roller bearings can bear radial load, axial load and load torque loads  aviation bearing  in all directions and so on. Minimum size of the inner and outer rings are miniaturized, in particular close to the limit of a very thin type of compact size, and has high rigidity, it is most suitable for the joint portion or a rotating portion of the industrial robot, the rotary table of the machining center, use the rotating portion of the manipulator, precision rotary tables, medical equipment, meters, IC manufacturing equipment, etc..

2014年9月14日星期日

the clutch pedal force will be transmitted to the clutch release bearings


When the clutch release bearing work, the clutch pedal force will be transmitted to the clutch release bearings. Clutch bearing clutch pressure plate toward the center,  fatigue testing machine so that the pressure plate is pushed away from the clutch, the clutch plate and flywheel separation. When the clutch pedal is
released, the pressure plate before the spring pressure will push the
pressure plate, the pressure radial clearance to the clutch plate, clutch plate and clutch
bearing separation, and the completion of a work cycle.

 Repair personnel in practical work release bearing lubrication problem is easy to ignore, and do not release bearing lubrication during installation, causing the clutch release roughness measuring instrument  bearing starvation. No lubrication or less the amount of wear of bearings lubricated separate release bearing lubrication is often several times to several times. Wear increases, the temperature will increase greatly, so more damage to the release bearing. So in the repair process, the installation of the clutch release bearing lubrication to check, timely lubrication maintenance.


2014年9月3日星期三

when the United States announced a dynamic scatteringtechnology.

 liquid crystal materials have been used in the development of many types. The structures of these compounds are very stable crystal, the nematic phase temperature range is wide, the viscosity is relatively low. Not only meet the high-definition liquid crystal mixture highlights, low viscosity at 20 ~ 30mPa8226; S (20 ℃) ​​and △ n≈0.15 requirements, and to ensure that the system has good low temperature performance.Precision bearing  Biphenyl ring containing liquid crystalline compound of △ n value larger  improving steepness active ingredients. Pyrimidine compounds K33 / K11 value is smaller, only about 0.60, in and  liquid crystal material formulations are often used to adjust the temperature value of △ n and the sequence number. The dioxane liquid crystalline compound is adjust the "multi-drive" an essential component performance.
e liquid crystal material development originated in 1968, when the United States announced a dynamic scatteringtechnology. However, since the structure does not provide wheel bearing the stability of liquid crystal material, so that they use as a display material is greatly limited. 1971 twisted nematic liquid crystal display after the advent of positive dielectric anisotropy TN liquid crystal material was quickly developed; especially in 1974 relative to the structural stability of the biphenyl eye series of liquid crystal material by GW after Gray and other synthesized to meet the performance requirements at the time of electronic watches, calculators and instrument display devices such as  which really formed the industrial era.