av无码人妻无码男人的天堂,最近2019中文字幕mv免费看,边吸奶边扎下面很爽,久久男人av资源站,抓住我的双乳咬我奶头视频看,秋霞鲁丝片av无码,无码国产精品一区二区免费3p,gogogo高清在线观看视频电影,日本少妇高潮喷水视频,日本在线视频

<center id="q2quk"><option id="q2quk"></option></center>
  • <center id="q2quk"><table id="q2quk"></table></center>
  • <s id="q2quk"></s>
    <nav id="q2quk"><source id="q2quk"></source></nav>

    D-type triangle

    Rubber products > Triangle belt > D-type triangle

    D-type triangle

    V-belt is composed of wrapping cloth, top cloth, top rubber, buffer rubber, tensile body, bottom rubber, bottom rubber clip cloth, bottom cloth, etc

    A1550Naming of V-belt: take a1550 as an example, a as model, reference length 1550mm, and its name is a1550

    A - model a

    1550 - with reference length of 1550mm

    Length can be negotiated by both parties


    Belt type

    Upper width

    height

    angle

    marking length

    Common triangle

    Z

    10

    6

    40

    Li(Inner circumference)

    A

    13

    8

    40

    Li(Inner circumference)

    B

    17

    11

    40

    Li(Inner circumference)

    C

    22

    14

    40

    Li(Inner circumference)

    D

    32

    20

    40

    Li(Inner circumference)

    Narrow V band

    SPZ

    10

    8

    40

    LD(Pitch line length)

    SPA

    13

    11

    40

    LD(Pitch line length)

    SPB

    17

    14

    40

    LD(Pitch line length)

    SPC

    22

    18

    40

    LD(Pitch line length)

    9N(3V)

    9.7

    8

    40

    La(Circumference)

    15N(5V)

    16

    13.5

    40

    La(Circumference)

    25N(8V)

    25.5

    23

    40

    La(Circumference)

    Selection method of V-belt

       1 The selected model shall be suitable for the selected V-belt, otherwise the V-belt will be abnormal in the pulley groove. When replacing V-belt, bring the old one to the agricultural machinery department for purchase to prevent the wrong model.

       2 Before the correct installation, install the V-belt and a group of V-belts in the same way.

       3 When installing the pulley in series, the centers of the two upper pulleys must be aligned, otherwise, the V-belt will work unilaterally, wear seriously, and reduce the service life of the V-belt.

       4 The proper tightness of V-belt must be checked and adjusted frequently to make it meet the requirements. Too loose V-belt is not only easy to slip, but also increases the wear of V-belt, even unable to transmit power. Too tight V-belt will not only elongate, deform and damage the V-belt, but also cause the main bearing and clutch bearing of the engine to suffer too much force, which will accelerate the wear of V-belt. The correct inspection method is: use your hand in the middle of each tape, apply a vertical pressure of about 2kg, and it is appropriate to sink 20-30mm, and adjust it in time if it is not suitable.

       5 When there are two or more V-belts to be replaced, the V-belts of the specified model shall be selected, and the tightness of each group of V-belts shall be the same.

       6 To prevent contamination, oil and muddy water in V-belt shall be strictly prevented, and contact with corrosive substances such as acid and alkali shall be avoided, so as to prevent slipping and early damage caused by corrosion of V-belt.

       7 The operators and users of the daily maintenance machine should master the correct operation essentials in the normal driving, and try to avoid sudden starting and sudden braking according to the technical requirements of the operation manual; also, it should prevent frequent overload operation; when the machine is out of service for a long time, the V-belt should be removed and stored separately.




    Previous: E-type triangle
    Next: C-type triangle
    伊人色综合一区二区三区影院视频| 妺七av导航福利| 亚洲一区精品无码| 亚洲中文字幕人成影院| 2021亚洲va在线va天堂va国产 | 日本一道高清一区二区三区| 日产精品二线三线区全新版本 | 无遮掩无码h成人av动漫| 人妻老妇乱子伦精品无码专区| 女同专区中文字幕另类一区 | 精品久久久无码人妻中文字幕豆芽 | 亚洲 日韩 欧美 成人 在线观看| 精品日产一卡二卡| 色欲AV久久综合人妻无码| 国产精品亚洲一区二区三区在线| 成人久久久观看免费毛片| 精品国精品无码自拍自在线 | 丰满少妇一区二区自拍区| 欧美激情xxxx性bbbb| 噜噜噜亚洲色成人网站∨| 玩弄少妇秘书人妻系列| 凹凸国产精品熟女视频| 成 人 网 站 免 费 av| 狠狠亚洲婷婷综合色香五月| 国产欧美色一区二区三区| 欧美日韩国产精品一区二区在线观看| 少妇china中国人妻video| 国产午夜福利av视频在线观看| 亚洲欧洲AV无码专区| 91草草影院在线观看| 亚洲黄色片免费试看| 欧美综合区自拍亚洲综合绿色| 丰满人妻av一区二区视频| 无码孕妇孕交在线观看| 天天干夜夜操操操操| 亚洲成a人片777777久久| 午夜西瓜视频在线观看| 欧美性少妇xxxx极品高清hd| 国产婷婷丁香五月缴情成人网| 亚洲第一无码AV无码专区| 精品国产18禁99久久久久久|