Installation And Adjustment Method Of High Speed Timken Bearing
Installation And Adjustment Method Of High Speed Timken Bearing
2021年12月29日
Determination Method Of Whether Nsk Bearing Should Be Replaced
Determination Method Of Whether Nsk Bearing Should Be Replaced
2021年12月30日

Installation And Matching Method Of Nsk Bearing

Matching Method Of Nsk Bearing

Whether NSK bearing is installed or not will affect the accuracy, service life and performance of NSK bearing. Therefore, please fully study the Matching Method Of Nsk Bearing installation of NSK bearing, that is, please install NSK bearing according to the operating standards including the following items.

1. Clean NSK Bearings and related parts. (for grease lubricated NSK Bearings and NSK Bearings with oil Matching Method Of Nsk Bearing seals or dust covers on both sides, the sealing rings need not be cleaned before installation.)

2. Check the size and finish machining of relevant parts

3. Installation method

The installation of NSK bearing shall be determined according to the structure and size of NSK bearing and the matching nature of NSK bearing components. The pressure shall be directly added to the end face of the tightly matched ferrule, and the pressure shall not be transmitted through the rolling element. The installation of NSK bearing generally adopts the following methods:

a. Press fit

The inner ring of NSK bearing is tightly matched with the shaft. When the Matching Method Of Nsk Bearing outer ring is loosely matched with the NSK bearing seat hole, the NSK bearing can be press installed on the shaft with a press,

and then the shaft and NSK bearing can be installed into the NSK bearing seat hole. During press installation, an assembly sleeve (copper or mild Matching Method Of Nsk Bearing steel) made of soft metal material shall be padded on the end face of the inner ring of NSK bearing.

The outer ring of NSK bearing fits tightly with the NSK bearing seat hole. When the inner ring fits loosely with the shaft, the NSK bearing can be Matching Method Of Nsk Bearing pressed into the NSK bearing seat hole first. At this time, the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the seat hole.

Installation And Matching Method Of Nsk Bearing

If the NSK bearing ring is tightly matched with the shaft and seat hole, the inner ring and outer ring in the installation chamber shall be pressed into the shaft and seat hole at the Matching Method Of Nsk Bearing same time, and the structure of the assembly sleeve shall be able to press the end faces of the inner ring and outer ring of NSK bearing at the same time.

b. Heating fit

By heating NSK bearing or NSK bearing seat, the installation method from tight fit to loose fit is changed by thermal expansion. It is a common Matching Method Of Nsk Bearing and labor-saving installation method. This method is suitable for the installation of NSK bearing with large interference.

Before hot installation, put the ferrule of NSK bearing or separable NSK bearing into the oil tank and heat it evenly for 80-100 ℃, then take it out of the oil and install it on the shaft as soon as possible. In order to prevent the end face of inner ring and shaft Matching Method Of Nsk Bearing shoulder from not fitting tightly after cooling, NSK bearing can be tightened axially after cooling.

When the NSK bearing outer ring is tightly matched with the NSK bearing seat made of light metal, the hot installation method of heating the NSK bearing seat can avoid scratching the mating surface.

When heating NSK bearing with oil tank, there shall be a mesh grid at a certain distance from the bottom of the box, or the NSK bearing shall be hung with a hook. The NSK bearing shall not be placed on the bottom of the box to prevent sinking impurities from entering the NSK bearing or uneven heating.

There must be a thermometer in the oil tank, and the oil temperature shall be strictly controlled not to exceed 100 ℃ to prevent tempering effect and reduce the hardness of the ferrule.