Skf Matched Single Row Angular Contact Ball Bearing
Skf Matched Single Row Angular Contact Ball Bearing
2021年12月30日
Preparation Before Installation Of Rolling Bearing
Preparation Before Installation Of Rolling Bearing
2021年12月31日

Installation Of Four Row Tapered Roller Bearings

Row Tapered Roller Bearings

The fit between the inner ring of four row tapered roller bearing and the roll neck is generally with clearance. During installation, first install the bearing into the bearing housing, and then install the bearing housing into the journal.

The outer ring of four row tapered roller bearing and the bearing housing hole also adopt dynamic fit. First install the outer ring a into the bearing housing. Word {hottag} symbols are printed on the outer ring, inner ring and inner and outer Row Tapered Roller Bearings spacer rings when leaving the factory. During installation, it must be installed into the bearing housing in the order of character symbols. It cannot be interchanged arbitrarily to prevent the change of bearing clearance.

Installation Of Four Row Tapered Roller Bearings

After all parts are installed in the bearing housing, Row Tapered Roller Bearings axially close the inner ring to the inner spacer, and the outer ring to the outer spacer.

Measure the gap width between the outer ring end face Row Tapered Roller Bearings and the bearing housing cover plate to determine the thickness of the corresponding sealing gasket.

Installation Of Tapered Roller Bearing And Water Pump Shaft Bearing

Installation Of Tapered Roller Bearing And Water Pump Shaft Bearing

Rolling bearing is an assembly supporting the rotation of shaft.

The ferrule and rolling element are precision machined. Row Tapered Roller Bearings Before the bearing leaves the factory, in order to protect the surface of raceway and rolling element from corrosion, antirust oil or antirust grease is injected between raceway and rolling element. Therefore, the bearing should be cleaned before installation.

Bearings sealed with antirust oil can be directly cleaned with gasoline or kerosene; If thick oil or antirust grease is used for rust prevention, light mineral oil, such as 10# engine oil or transformer oil, shall be used for heating, melting and cooling the grease, and then cleaned with gasoline or kerosene. Bearings with dust covers or sealing rings on both sides have been added with grease before delivery, so they do not need to be cleaned during installation.

Bearings coated with lubricating and antirust grease do not need to be cleaned during installation. During cleaning and installation, foreign matters shall be strictly Row Tapered Roller Bearings prevented from falling into the bearing, because small abrasive particles will cause wear between the rolling element and the raceway, increase noise and vibration.

There are two main ways to assemble and disassemble bearings.

First, press the interference ring into the shaft or into the bearing seat hole; First, the inner diameter of the bearing is increased by heating the bearing, or the outer diameter of the Row Tapered Roller Bearings bearing is reduced by cooling the bearing, so that the bearing can be easily installed on the shaft or pushed into the seat hole.

When the pressurization method is adopted, the mechanical force or hydraulic pressure will directly act on the assembled and disassembled seat ring through a special device, and the loading and unloading Row Tapered Roller Bearings force is never allowed to be transmitted through the rolling element. Otherwise, it will cause indentation on the surface of raceway and rolling element, increase noise and vibration and cause damage.

If heating or cooling methods are used for assembly and disassembly, the heating temperature or cooling temperature shall be strictly controlled. Because the strength of the working surface of the bearing is affected by the metallographic structure of the metal surface, too high temperature will cause Row Tapered Roller Bearings tempering effect; Over low temperature will cause embrittlement of metal surface.

Generally, the heating temperature shall not exceed 100 ℃, and the cooling bottom temperature shall not be below minus 50 ℃. At the same time, the heating shall be uniform. Practice has proved that improper bearing installation is one of the reasons for premature bearing damage. It is very difficult to assemble and disassemble the ferrule with interference.

Therefore, when designing the support, we must consider how to assemble and disassemble the bearing and how to facilitate the assembly and disassembly. For the assembly and disassembly of large bearings in heavy machinery, it is often necessary to design special equipment. If the high-pressure oil is disassembled, the oil circuit, pipeline and pump shall be designed accordingly.