Installation
and removal
轴承安装和拆卸
Bearing installation and removal Cleanliness 清洁
Plan the work 准备工作
Inspection and preparation
检查和准备
Why does a bearing need to be properly
fitted on shaft and in housing? 为什么轴承需要正确的安装在轴上和轴承座里
To fully use the load carrying capacity of the bearing 完全承载To prevent rings from turning on or in their seating under load 防止轴承圈移位
To guarantee adequate internal clearance 保证适当内部间隙
To reach bearing life expectancy 达到轴承预期寿命
To make safer and easier mounting and dismounting 使拆装安全简便To permit axial displacement for float bearing 允许浮动轴承轴向移动Bearing installation and removal
轴承安装和拆卸Direct shaft mounting, cylindrical / straight bore 直孔轴承直接装在轴上。
Direct shaft mounting, tapered bore 锥孔轴承直接装在轴上
Tapered adapter sleeve 锥孔适配套
Pull-type 紧定套
Push-type 推卸套
Bearing installation and removal for spherical roller bearings
调心滚子轴承的拆装
Bearing mounting arrangement 轴承安装简介
Dirty work bench 不够清洁的工作台Designate a suitable working area 指定一个合适的工作区
Clean assembly area and tools 清洁装配区和工具
The following tools should be accessible before assembly
procedure is started: eye bolts, handling fixtures, hooks, slings, wrenches, gauges and lubricating equipment. 事先准备好常用工具比如吊环螺栓，工装夹具，吊钩，吊带，扳手，量具和润滑设备
Preparation for mounting 准备安装
Bearing installation and removal
轴承安装与拆卸
Clean work bench 干净的工作区
Straight bore bearing mounting
直孔轴承安装
Bearing installation 轴承安装
Bearing installation 轴承安装
Do not use torch to heat bearings 不要用喷枪加热轴承
Bearing installation 轴承安装
Induction heating 感应加热Induction heater 感应加热器
Heating in oil bath 油浴加热
Temperature 温度: < 250°F
Duration 时间: varies according to size 根据尺寸调整
15 minutes to two hours soak time 浸入时间
Bearing mounting 轴承安装
Bearing support block Non-conductive 轴承支撑块，不导热的Oil
high flash
point 热油
Flame burner 火源Bearing held from
bottom by screen
用网隔与底部隔开
Preparing for installation 准备安装Check for debris 检查毛刺
Raised areas unacceptable
不允许毛刺突起
Ensure shaft integrity 保证轴的平直
Shaft and housing inspection
procedure 轴和轴承座检查步骤Shaft and housing dimensions 轴和轴承座尺寸
Size 尺寸–OD tolerance 外径公差
Roundness 圆度–One-half OD tolerance 外径公差的一半
Straightness 平面度–One-half OD tolerance 外径公差的一半
Important shaft and housing attributes
Size –average diameter 尺寸
Form –roundness, straightness (taper)形状
Surface roughness –topography表面质量
Shaft Straight Tapered
63 rms
50 rms
Housing Fixed Float
125 rms63 rms
Prussian blue and precision straight edge or sine bar confirms surface topography 用普鲁士蓝和精密直规确认表面质量
Check in angular planes 检查带锥度的面
80% conformity required 要求吻合度
Check shaft shoulder
fillet radius检查轴肩倒角
Fillet radius too large
倒角过大
Correct Fillet radius 正确
Shaft shoulder diameter 轴肩尺寸
Shoulder too small
轴肩过低Shoulder too large
轴肩过大
Correct shaft shoulder diameter
正确的轴肩
Handling hot bearing 搬运热轴承
Handling hot bearing 安装热轴承Ensure bearing is
flush with shaft
shoulder 保证轴承
与轴肩平齐
.002”feeler gage 塞规
Hold bearing in
position while
cooling
在冷却时压住轴承
Protect the bearing 保护轴承
Mounting tapered-bore spherical roller bearing
锥孔调心滚子轴承安装
Sine bar
set up
正弦规配置
Eighty percent conformity required 测量吻合度
Measuring bench RIC 测量安装前间隙
Drive bearing up tapered journal 将轴承推装在轴上
Hydraulic nut
液压螺母
Check mounted RIC 测量安装后间隙
Lock
washer
and nut
锁紧垫片和
锁紧螺母Lock plate
and nut
锁紧板和锁紧
螺母
Push-type tapered adapter sleeve
紧定套
Pull-type
tapered
adapter
sleeve
退卸套