ZXZ Extra Thin Wall Compound Roller Bearing
Build up entire bearing production line from steel tube. forging, turning, heat treatment to grinding and assembling after 10 years effort; high quality bearing after heat treatment have already provide for top 5 bearing manufacturer worldwide, production capacity reach 200 million sets annually; adopt full automatic CNC grinding and assembly line, benefit from big amount of advanced manufacturing equipment, XCC has ability to serve for world class level customers.
ZXZ pillow block Insert Bearings with seat for escalator adopts integral seal, with ordinary carbon steel on the outside Bearing Unit for dust cover.
See figure 6. The interference fit between the dust cover and inner ring can enhance the sealing effect without increasing friction Long life grease is added inside the bearing. The outer ring has lubricating oil holes, which can be lubricated again. Usually, the transition fit (7) is used to fit the casting seat and the pillow block insert bearing. There is a certain centering moment between the casting seat and the bearing.
The elevator should be operated with as low noise as possible. In general, the vibration may be caused by the following reason
The rotors balance
Unilateral magnetic tension
Bearing effect;
The unstable shafting, etc
Most of the energy of the vibration will be converted into structural noise. In addition to the bearing itself(precision, working
clearance,design structure, etc.), the bearing installed in the tractor will be affected by other factors
The geometric tolerances of mating parts, such as roundness and roughness of shaft and socket
The fitting position tolerance of bearing ring deflection caused by coaxiality and seat hole misalignment:
Lubricants, including cleanliness of lubricants, oil film thickness and additive
lubricating film can reduce the noise
Different bearing types will have different noise performance
Generally speaking, the running noise of ball bearing is lower than the roller bearing, especially the running noise of deep groove ball
bearing using the axial pretension spring is lower. Axial preload can not only reduce vibration and noise, but also optimize the
operation of the rolling body to avoid skidding, which is conducive to the establishment of lubricating oil film and the reduction of internal wear.
XCC has an integrated bearing production chain what combined with R&D, tubing, forging, turning, heat treating, grinding etc. Including auto Alternator Bearings,tension bearings, air-conditioner clutch bearings, Water Pump Bearings, Precision Machine Tool Bearings, chemical fiber & textile machinery bearings, as well as whole series of standard and non-standard Deep Groove Ball Bearings etc with high precision, high speed, low noise and long life.
ZXZ build up entire bearing production line from steel tube, forging, turning, heat treatment to grinding and assembling after 10 years effort; high quality bearing rings which do heat treatment already provide for top 5 bearing manufacturer worldwide, production capacity reach 200 million sets annually; adopt full automatic CNC grinding and assembly line, benefit from big amount of advanced manufacturing equipment, ZXZ has ability to service for world class level customers.
pillow block insert bearing with seat for elevator lift
ZXZ has long been developing and providing bearings with lower noise, higher bearing capacity and longer maintenance-free series for the elevator industry. Service life of the bearing is same as the elevator driving system, which is mainly used in the key parts of the tractor, guide wheel and escalator driving wheel. ZXZ has the leading bearing pre-grinding technology and high-quality raw material supplier system which provide a reliable guarantee for the research and development and manufacturing for the Elevator Bearing.
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