② Simple structure, standardized processing technology, reliable and durable, and cost-effective.
③ Being able to carry axial loads in both radial direction and axial direction, easy to install, low maintenance cost.
② With low friction torque, low noise and low vibration, and low temperature rise even under high-speed working conditions.
③ Low requirement for the minimum load.
② It can carry radial and axial combined loads, and through the combination of multiple sets of single-row bearings or double-row bearings, can also carry bidirectional axial loads.
③ The combination of multiple sets of single-row bearings and double-row bearings has a higher rigidity.
④ These high-precision products ensure the high speed and good operating performance of bearings.
② The optimized needle roller and raceway shape design can provide higher radial loading capacity.
③ High-precision needle roller bearing can have a high operating precision.
② The non-positioning structure can move axially to some extent.
③ The optimized generatrix profile of the roller decreases the edge stress of the contact part between the roller and the raceway, and also reduces the impact of installation alignment and shaft deflection on the overall performance, thus prolonging the service life.
② It has a high radial bearing capacity and some axial bearing capacity.
③ Optimized internal structure design, roller shape and cage structure make the bearing have a long service life.
② Low friction, noise and vibration, and long service life
③ The products assembled can meet the requirements for the most suitable preloading and rigidity.
④ Parts are detachable and interchangeable, which are more convenient for installation, disassembly and maintenance.
② Components are detachable and this is convenient for installation, disassembly and maintenance.
③ Products with ball seat rings can adapt to the impact of misalignment.
② It can provide very high rigidity in a very small axial space.
③ The optimized needle roller and raceway shape design can reduce the edge contact stress, thus having a longer service life.
② Products with axial positioning can bear some axial load.
③ Being able to bear the unbalance loading and skew operation caused due to slight misalignment
④ The optimized outer surface profile can reduce the contact stress with the guide rail and improve the service life of the guide rail.
⑤ The optimized raceway and roller shape can ensure the long service life of the bearing.
② It is easy and convenient to connect and install adjacent machine parts.
③ Strong bearing capacity and being able to bear all kinds of combined loads
② Apply for high rigidity case
③ Run with high precision and is able to offer preload
② It has compact structure
③ The spherical seat hole is a little helpful for the centring of long shaft
④ Large mounted bearings may be structured with split type for convenient installation and maintenance
② It, as surface contact bearing is suitable for high speed and light load condition
③ It can realize smooth, reliable and noiseless operation
Imported bearing installation method
Ready to install the necessary parts, tools and equipment; If the bearing ring and shaft and hole is a tight fit, inner ring and outer ring when installation should pressure into the shaft and hole, at the same time assembling casing structure should be able to at the same time, pressure bearing inner ring and outer ring end face.
Imported bearing installation to be in a dry, clean environment for the preparing work before installation:
According to the different bearing size and application environment, use different installation method;
Ready to install the necessary parts, tools and equipment;
Ready for all the parts need to be installed and thoroughly cleaned before installation (note: for fueling grease lubrication and oil seal or dust cover on both sides, sealing ring of the bearing, is don't need to be washed before installation.)
For all parts need to be installed according to the drawing size and shape accuracy check.
Imported bearing should be installed according to the bearing structure, size, and cooperate with properties of bearing parts, assembly of force should be directly in the tight fit installation on the ring width, shall not be passed on roller pressure equipment.
The installation of imported bearings generally adopt the following methods:
01 pressure into laws
Bearing inner ring and the shaft is a tight fit, outer ring and bearing hole is a loose fit, press the bearing to be pressed on the shaft are available, and then put the shaft together with the bearing load bearing hole.
The outer ring of the self-contained bearing hole for tight fit, inner ring and the shaft is a loose fit, bearing can be pressed into the bearing hole first, then assembling casing diameter should be slightly less than the diameter of a hole.
If the bearing ring and shaft and hole is a tight fit, inner ring and outer ring when installation should pressure into the shaft and hole, at the same time assembling casing structure should be able to at the same time, pressure bearing inner ring and outer ring end face.
02 heating method
By heating bearing or bearing seat, by using thermal expansion will fit into a loose fit installation method, this method is suitable for interference quantity larger the installation of the bearings.
The bearing before hot charging type or separable bearing ring into the constant temperature tank even heat 80-100 ℃, and then loaded on the shaft, as soon as possible out of the oil to prevent inner ring after cooling end face and the shoulder joint is not tight, bearing axial fastening again after cooling.
Bearing outer ring and light metal bearing tight fit, by heating the hot charging method of the bearing, can avoid the mating surface scratch.
03 The installation of cone bearing
Cone hole can be directly installed in a shaft with taper bearing neck, or in a tight sleeve and withdrawal sleeve on the cone of the tightness of cooperate, bearing radial clearance reduction is available to adjust. Therefore, before installation should be measured bearing radial clearance, the installation process should often measure the clearance in order to meet the need of clearance reduction is so far.
04 The installation of thrust bearing
Thrust bearing axial ring and shaft with the general transition fit, seat and the bearing holes with the general for the clearance fit, so this kind of bearing is easy to install, two-way thrust bearing axial circle should be fixed on the shaft, to prevent the relative to the axis of rotation.
Imported bearing to use brute force when installation, bearing installation does not reach the designated position, install there is deviation will cause bearing clearance is too small, bearing rotating different heart, bearing inner race damage such as use problem to cause bearing life is reduced, so after the installation should use special instrument to detect the installation accuracy, to ensure correct installation.