News

Service creates value, create the future

The current position:首页>News

What should be pay attention to the installation of precision bearing

Time:2020-05-01   Traffic:12

Precision bearing is mainly used in high-speed rotating occasions with light load, requiring high precision, high speed, low vibration and a certain service life of bearings.

It is often used as the supporting parts of high-speed motorized spindle in pairs. It is the hub fitting of high-speed motorized spindle of internal grinder.The service life of high-speed precision bearing is closely related to the installation. The following items should be pay attention to: 1. The bearing installation should be carried out in a clean room without dust. The bearing should be carefully selected and matched. The bearing spacer should be grinded. Under the condition of keeping the inner and outer spacer high, the parallelism of the spacer should be controlled below 1um.

    2. the bearing shall be cleaned before installation. When cleaning, the inner ring slope shall be upward, and the hand induction shall be flexible without stagnation. After drying, put in the specified amount of grease. If it is oil mist lubrication, put in a small amount of oil mist oil;

    3. special tools shall be used for bearing installation, with average stress and no knocking;

    4. the bearing shall be stored in a clean and ventilated manner, free of corrosive gas, and the relative humidity shall not exceed 65%. Long term storage shall be rust proof on schedule.

image.png

       In order to improve the actual matching accuracy of precision bearing installation, it is necessary to use the measuring methods and measuring tools that do not deform the precision bearing to carry out the actual precise measurement of the matching surface size of the inner hole and the outer circle of the precision bearing. The measurement items of the inner diameter and the outer diameter can be measured completely, and the measured data can be comprehensively analyzed. On this basis, the precision matching shaft and theThe size of the precision bearing installation part of the seat hole.When actually measuring the corresponding size and geometry of the matched shaft and seat hole, it should be carried out under the same temperature condition as when measuring the precision bearing.In order to ensure a high practical matching effect, the surface roughness of the matching surface between the shaft and the seat hole and the precision bearing should be as small as possible.When making the above measurement, two groups of marks shall be made on the outer circle and inner hole of precision bearing and the corresponding surface of shaft and seat hole on both sides close to the assembly chamfer to indicate the direction of maximum deviation, so as to align the maximum deviation of matching two sides with the same direction during actual assembly, so that the deviation of both sides can be partially offset after assembly.

    The purpose of making two sets of directional marks is to comprehensively consider the compensation of the deviation. Even if the rotation accuracy of the two supports is improved, the coaxiality error between the two supports and the journal at both ends is partially eliminated.The surface strengthening measures, such as sand blasting, inserting the inner hole with a small diameter precision plug post and so on, can improve the matching accuracy.

    For more information about bearings, please visit the official website, or consult our service hotline or wechat customer service.


The last:Zhenwei new DAC3570W-1CS72 hub bearing

Next up:What factors should be considered for bearing sealing

Product recommendations
42450-74010 Wheel hub for 12-15 SCION TOYOTA
42450-74010 Wheel hub fo···

TOYOTA:42450-74010KOYO:3DACF026F-39DS FAG:713621250  TMK:HA590472Fit for:2012-2015 S···

04000-0010C Wheel hub for TOYOTA TUNDRA 07-13
04000-0010C Wheel hub fo···

TOYOTA:42450-0C010   42450-60070   04000-0010CKOYO:2DACF049N-1BR    &n···

Wheel hub 42410-60060 for SERIES TOYOTA
Wheel hub 42410-60060 fo···

TOYOTA:42450-60050  R            42450-60060   424···

Wheel hub 42450-52100 for 10-16 TOYOTA VERSO
Wheel hub 42450-52100 fo···

TOYOTA:42450-52090    42450-52100Fit for:2010-2016 TOYOTA VERSO S NLP120  NCP12···

42450-0D120 Wheel hub for YARIS
42450-0D120 Wheel hub fo···

TOYOTA:42450-0D140     42450-0D150   42450-0D120  42450-0D110&nbs···

42450-F4010 Wheel hub for C-HR
42450-F4010 Wheel hub fo···

TOYOTA: 42450-F4010   42450-10020FIT FOR:2017- TOYOTA C-HR ZGX10

90366-50069 Wheel bearing for COASTER
90366-50069 Wheel bearin···

TOYOTA:90366-50069size:50*90*32       ZXT:33210JRfit for:2000-2013  TOYOT···

90369-35029 Wheel bearing for STARLET
90369-35029 Wheel bearin···

TOYOTA:90369-35029   90369-35030Size:35*68*33/30       ZXT:DAC356833/···

90369-47001 Wheel bearing for HIACE
90369-47001 Wheel bearin···

TOYOTA:90369-47001SIZE:47*88*57.5        ZXT:DU478857.5    ···

90369-38018 Wheel bearing for COROLLA
90369-38018 Wheel bearin···

TOYOTA:90369-38018size:38*64*36/33 ZXT:DU386436/33  KOYO:46T080604-1fit for:TOYOTA ···

90366-T0060 Wheel bearing for HILUX
90366-T0060 Wheel bearin···

TOYOTA:90366-T0060    size:42*82*40   ZXT:DU428240M     NSK···

90366-T0007 Wheel bearing for INNOVA
90366-T0007 Wheel bearin···

TOYOTA:90366-T0007   90366-T0008   90366-T0043   90080-36205SIZE:43*7···

Online

点击这里给我发消息 Pre-sale advisory commissioner

点击这里给我发消息 After-sales service commissioner

Online

Free talk

24 hours free consultation

Please enter your phone number, machine shinyanga number, please

Free talk

WeChat scan

WeChat contact
Top