$(function() { var sWidth = $("#focus").width(); //获取焦点图的宽度(显示面积) var len = $("#focus ul li").length; //获取焦点图个数 var index = 0; var picTimer; //以下代码添加数字按钮和按钮后的半透明条,还有上一页、下一页两个按钮 var btn = "
"; for(var i=0; i < len; i++) { btn += ""; } btn += "
"; $("#focus").append(btn); $("#focus .btnBg").css("opacity",0.5); //为小按钮添加鼠标滑入事件,以显示相应的内容 $("#focus .btn span").css("opacity",0.4).mouseenter(function() { index = $("#focus .btn span").index(this); showPics(index); }).eq(0).trigger("mouseenter"); //上一页、下一页按钮透明度处理 $("#focus .preNext").css("opacity",0.2).hover(function() { $(this).stop(true,false).animate({"opacity":"0.5"},300); },function() { $(this).stop(true,false).animate({"opacity":"0.2"},300); }); //上一页按钮 $("#focus .pre").click(function() { index -= 1; if(index == -1) {index = len - 1;} showPics(index); }); //下一页按钮 $("#focus .next").click(function() { index += 1; if(index == len) {index = 0;} showPics(index); }); //本例为左右滚动,即所有li元素都是在同一排向左浮动,所以这里需要计算出外围ul元素的宽度 $("#focus ul").css("width",sWidth * (len)); //鼠标滑上焦点图时停止自动播放,滑出时开始自动播放 $("#focus").hover(function() { clearInterval(picTimer); },function() { picTimer = setInterval(function() { showPics(index); index++; if(index == len) {index = 0;} },4000); //此4000代表自动播放的间隔,单位:毫秒 }).trigger("mouseleave"); //显示图片函数,根据接收的index值显示相应的内容 function showPics(index) { //普通切换 var nowLeft = -index*sWidth; //根据index值计算ul元素的left值 $("#focus ul").stop(true,false).animate({"left":nowLeft},300); //通过animate()调整ul元素滚动到计算出的position //$("#focus .btn span").removeClass("on").eq(index).addClass("on"); //为当前的按钮切换到选中的效果 $("#focus .btn span").stop(true,false).animate({"opacity":"0.4"},300).eq(index).stop(true,false).animate({"opacity":"1"},300); //为当前的按钮切换到选中的效果 } });
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Thrust Roller Bearings

1. Photo: 
2. Category:
• Cylindrical roller thrust bearings
• Taper roller thrust bearings
• Spherical roller thrust bearings
• Needle roller thrust bearings
 
We can also design thrust roller bearings with other structures such as double-row cylindrical roller thrust bearings thrust roller bearings with outer covers or flat washers cylindrical roller thrust bearings without rings etc. 
 
3. Cages:
Cages of thrust roller bearings are pressed steel cages, machined solid cages, glass fabric reinforced polyamide 66 cages and etc. Machined solid cages are mainly made of brass bronze various light alloys and phenolic resin.
 
4. Specification:
Cylindrical roller thrust bearings:
• Inner diameter:50~670mm
• Outer diameter:85~900mm
• Width:22~230mm
Tapered roller thrust bearings
• Inner diameter:50~670mm
• Outer diameter:85~900mm
• Width:22~230mm
 
5. Applications:
Unidirectional: bearings whose shaft washer is in the same direction with housing washer apply to radial location. They are widely used in crane hook, swivel of oil rig and so on. When the axial load is high, please use roller bearings fully packed. Some axial eccentricity is allowed in the bearings that rollway nest of the housing washer is flat.
Bidirectional: roll neck of the rolling mill.