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How to choose the type and type KOYO bearing

First, the limitation of size.
KOYO bearings can usually installation space is restricted. In most cases, the shaft diameter (or KOYO bearing diameter) is based on the mechanical design or other design constraints. Selection of bearing type and size is determined according to the inner diameter of the bearing. Thus, the main dimensions of standard KOYO bearing table according to the international standard diameter size and the preparation of the.
Standard form of KOYO bearing size range, in the design of mechanical device is best when using standard KOYO bearings (this design to the KOYO bearing is easy to buy, here as an aside, some bearing catalog model does, but some non-standard KOYO bearings in China mainland area, no spot, sometimes futures will for a long time and so in the bearing selection must consider the time cost and a late replacement cost) bearing load applied on the KOYO bearing load, the nature, size, direction is changeable. Typically, the basic load rating are displayed in the dimension table. Axial and radial loads and so on, are also important factors for the selection of KOYO bearing. When the size of the ball and needle bearing, needle roller bearing load capacity of KOYO usually have a higher vibration and shock loads and withstand greater.
Secondly, speed.
Allowed speed according to the type, size of KOYO bearings, precision, cage type, load, lubrication method, to determine the factors and cooling method. KOYO bearing table lists the standard precision bearings under oil lubrication and oil lubrication allows speed. Usually, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high speed operation of the occasion.
Again, KOYO bearings.
Bearing size and rotation accuracy is the accuracy of KOYO according to ISO and JIS standard. For the requirement of high precision and high-speed operation of the machinery, grade 5 or above is recommended precision bearings, deep groove ball bearings, thrust ball bearings or cylindrical roller bearings are suitable for high running accuracy of machinery. Rigid, when the roller and raceway contact surface pressure bearing, can generate elastic deformation. Some machines need to keep to a minimum the elastic deformation. Roller bearings are produced than ball bearing elastic deformation small.
In addition, in some cases to exert preloading of KOYO bearings to increase rigidity. This procedure is usually used for deep groove ball bearings, thrust ball bearings and tapered roller bearing inner ring and the outer ring of the bias, bent shaft, shaft or bearing box changes with KOYO tolerance, errors will cause the eccentricity of the inner and outer rings. In order to prevent the eccentric angle is too large, self-aligning ball bearings, self-aligning roller bearings, or self-aligning bearing seat is the better choice. Voice frequency and torque, the rolling bearing is according to the high standard of precision manufacturing, so the noise and small torque. Deep groove ball bearings and cylindrical roller bearings, suitable for low voice, low torque occasions with special requirements.
Installation and disassembly, some applications require frequent disassembly and installation, to ensure that can detect and repair regularly. The inner ring and the outer ring can be KOYO bearing are respectively installed such as cylindrical bearings, needle roller bearings, and is very suitable for the occasion of tapered roller bearing. Self aligning ball bearings taper hole and a self-aligning roller bearing in the axle sleeve's help, but also simplify the installation program.
(1) before the KOYO bearing installation, should the requirements prescribed by the appropriate measuring tool according to the design drawings of the technology, check the shaft and hole and the relevant parts of the processing quality (such as the dimensional accuracy, shape accuracy and surface roughness, etc.).
(2) the assembly surface of the shaft and the bearing seat hole as it bumps, burrs, rust or solid particles (such as debris, sand, clay and other) exists, not only makes the KOYO bearing installation difficulties and make the installation position is not correct, and solid particles such as falling into the KOYO bearing will grind done, when the work the surface of KOYO bearing rotation rubs or scratches will KOYO bearing, so before installation must be carefully check, if found to have the above defects, should be corrected. Such as the use of oil removing burr, bump touch file mark, rust, and with fine emery cloth polishing, such as cleaning solid particles, dirt, etc..
(3) should be clean gasoline, mounting surface kerosene, toluene or xylene solution cleaning clean, and with a clean dry cloth, then coated with a thin layer of lubricating oil, which can make the installation more convenient operation.
(4) near the open KOYO bearings when package is installed, it will be immersed in the liquids such as gasoline to hand gently rotate, to ensure that cage, rolling body and rolling package oil road surface is thoroughly clean.
(5) a large number of KOYO bearing cleaning, first with a temperature of 90 ~ 100 DEG C engine oil pour hot oil to make the package melting, also for seamless export and not falling debris tool to dig net all the old oil, and then poured hot a few minutes, and then rinse with kerosene to oil, finally re-use gasoline clean again. Clean, should wear gloves of the film bearing in a clean cloth or paper to dry.
(6) note with sealed bearings not used this law to clean, sealed inside should remain as it is capable of cleaning.

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