Timken Imported Bearing Shall Be Inspected After Installation
Timken Imported Bearing Shall Be Inspected After Installation
2022年1月5日
Timken Bearing Installation And Lubrication Method
Timken Bearing Installation And Lubrication Method
2022年1月6日

Selection And Installation Method Of Koyo Bearing Type

Koyo Bearing Type

When selecting the Koyo bearing, we should select whether the Koyo bearing meets our mechanical Koyo Bearing Type application range according to the bearing size, specification and speed. Here is a simple analysis:

bearing size limits.

Generally, the space where Koyo bearings can be installed is limited. In most cases, the shaft diameter (or Koyo Bearing Type bearing inner diameter) is limited by mechanical design or other design.

Therefore, the selection of bearing type and size is determined according to the inner diameter of Koyo bearing. Therefore, the main dimension tables of standard Koyo bearings are Koyo Bearing Type prepared according to the international standard inner diameter dimensions.

Standard Koyo bearings have various sizes and forms, Standard bearings are used in the design of mechanical devices (this design is easy to Koyo Bearing Type purchase for KOYO bearings. Here’s a digression. Some KOYO bearing catalog models do have some, but some non-standard bearings are not available in Chinese mainland,

and sometimes futures will be very long time, so when KOYO bearing is selected, the time cost and the cost of later replacement) should be taken Koyo Bearing Type into account. The nature, size and direction of the load of Koyo bearing and the load applied to the bearing are changeable. In general, the rated base load is shown on the dimension table.

However, axial load and radial load are also important factors in selecting suitable Koyo bearings. When the ball and needle roller bearings have the same size, needle roller bearings Koyo Bearing Type usually have high load capacity and bear large vibration and impact loads.

Second, bearing speed.

The allowable speed is determined according to Koyo bearing type, size, accuracy, cage type, load, lubrication mode, cooling mode and other factors. The Koyo bearing table lists the allowable speed of standard precision bearings under oil lubrication and grease lubrication. Generally, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation.

Selection And Installation Method Of Koyo Bearing Type

Third, Koyo bearing tolerance.

The dimensional accuracy and rotation accuracy of Koyo bearings are based on ISO and JIS standards. For machines requiring high precision and high-speed operation, it is recommended to use bearings with precision of grade 5 or above. Deep groove ball bearings, centripetal thrust ball bearings or cylindrical roller bearings are suitable for machines with high operation precision.

Rigid, when the contact surface of the rolling element and raceway of Koyo bearing is compressed, it will produce elastic deformation. Some machines need to minimize elastic deformation. Roller bearings produce less elastic deformation than ball bearings. When installing self-aligning ball bearings, carb ring roller bearings, spherical roller bearings and high-precision cylindrical roller Koyo bearings with conical holes,

the reduction value of radial internal clearance or the axial propulsion distance on the conical base shall be determined as the measure of Koyo Bearing Type interference. See the relevant product section for the guidance values of clearance reduction and axial propulsion distance.

Small Koyo bearing

Small Koyo bearings can be pushed onto a conical base using nuts. In the case of shaft sleeves, sleeve nuts are used. The small disassembly sleeve can be pushed into the bearing hole with a nut. The nut can be tightened Koyo Bearing Type with hook wrench or pneumatic wrench. Before installation, add a little oil to the surface of journal and sleeve.

Large and medium-sized Koyo bearing

The installation force required for large Koyo bearings is significantly increased and hydraulic nuts and / or oiling methods shall be used.

The above two methods can significantly simplify the installation process. The oil filling equipment required to operate the hydraulic nut and use the oil filling method is supplied. For details of these products, see the relevant section in the online catalog “maintenance and lubrication products”.

When the hydraulic nut is used to install the bearing, it must be positioned on the threaded part of the journal or the thread of the sleeve to make the annular piston close to the inner ring of the Koyo bearing, the nut on the shaft or the retaining ring installed at the shaft end.

Press the oil pressure into the hydraulic nut through the oil pump to move the piston axially with the force required for accurate installation. Use the hydraulic nut to install the spherical roller bearing onto the Using the oil injection method, the oil is injected between the Koyo bearing and the journal under high pressure to form an oil film.

This oil film separates the mating surfaces and significantly reduces the friction between the mating surfaces. This method is generally used when installing the bearing directly on the conical journal, but it is also used to install the Koyo bearing on the set sleeve and push sleeve specially prepared for the oil injection method.

The oil pump or oiler generates the necessary pressure to inject oil between the mating surfaces through the groove and oil distribution channel on the shaft or sleeve. When designing the layout of Koyo bearings, the necessary grooves and channels on the shaft must be considered.

The spherical roller bearing is installed on the withdrawal sleeve with oil groove. The withdrawal sleeve is pressed into the bearing hole by injecting oil into the mating surface and tightening the screws in turn.