Spherical Roller Bearing
球面滚子轴承
Taper Roller Bearing
圆锥滚子轴承
3 TYPES OF TOLERANCE FITS
3 TYPES OF
BEARING FIT
三种轴承配合
Fits
INTERFERENCE FIT
过盈配合
CLEARANCE FIT 间隙配合
轴垫圈
-Cage & ball/roller
轴承罩和滚柱/滚筒
-Spacer(for double row)
间隔装置（用于双排）
Thrust Ball/Roller Bearings
优点
1) Support heavy load 支持重负荷 2) Can take shock 可接受震动 3) Min. axial space 最小轴向间隔 4) High speed for ball 球轴承高速度
22205 25mm Bore / 52mm O.D. 239/1250 1250mm Bore / 1630mm O.D.
测量轴承尺寸
Measure bearing dimension
Width
宽度
Inner Ring Dia.
内圈直径
Outer Ring Dia.
外圈直径
Basic Rating Life Equation.
ห้องสมุดไป่ตู้
Speed 速度
7500r/min
6307.ZZ 33 200N
8500r/min
Using L10h Equation, 使用L10h方程式
( ) L10h = _1_0_0_0__0_0_0 __3_3_2_0__0_ 3 60 x 1000 3000
L10h = 20 332 hours
Customer requirements = 20 000 hours 顾客要求= 20，000 小时
在同一方向上既可支持径向也可轴向的负荷 缺点
1) Poor in errors of alignment
对位误差大
2) Mount in pair or with a located Bearing on the same shaft
要成对的安装或者跟一个定位的轴承安装在同一个轴上
Angular Contact Angle
What is a bearing
什么是滚动轴承？
滚动轴承是能够以最小摩擦力在两个反相方 向移动的界面内传输负荷的机器元件
它包括内圈和外圈，在两圈之间有一个运转在轨道间的滚动元件 为了阻止滚动元件间的相互接触，它们都被保持架均匀的间隔开来
Basic Bearing Components
BASIC BEARING COMPONENTS
This apply to Bearing Bore Dia. From 20mm to 490mm
只是适用于内孔直径范围在20mm-490mm之间的轴承
Envelope Based on ABMA Std. 20 & ISO 15
目前SRB产品范围
CURRENT SRB PRODUCT RANGE:
Fr = P = 3000 N C = 10.6 x P C = 10.6 x 3000
Basic dynamic 基本动态的负荷
load rating, C = 31 800 N
Bearing SBeealreingcsetleectedd 轴承选择
动态负荷 Dynamic, C
6209.ZZ 33 200N
Design
球面滚子轴承
设计
Withdrawal Sleeve
退卸套
CC
E
Adapter Sleeve
紧定套（或连接套管）
CAC & CA
密封圈
Seals
球面滚子轴承
Misalignment
Deflected shaft
偏转轴
座套不成直角
Seating out of square
Deflected housing
一位工程师想要为他的印刷机挑选一个匹配的滚珠轴
An engineer wExaamnplet.s.contto select a ball bearing for his printing machine.
转速 Speed, n = 1000 r/min. 恒定负荷Constant Load, Fr = 3000N.
TYPES OF BEARING
普通的轴承种类
Types of Bearing
DGBB
深 沟 球 轴 承
Deep Groove Ball Bearings
深沟球轴承
优点
1)Best for high speed application
最好运用在高速运转的情况
2) Good for low noise running
转速 Speed, n = 1000 r/min. 恒定负荷 Constant Load, Fr = 3000N.
Min. basic rating life, L10h = 20 000 operating hours.
最少基本寿命，L10h = 20,000 运行小时
From The Chart C/P = 10.6 从图表中得出
基础的轴承寿命计算方程式
L10h( ) L10h
=
__1_0_0_0_0_0_0_
60 n
_C_ P
P
Equation Where
L10h = basic rating life, operating hours 基本寿命，运行小时
( ) L10 = basic rating life, millions of revolutions = 基本寿命，百万转数
基本的轴承组成部件
Bearing compone
nt
INNER RING
内圈
OUTER RING
外圈
ROLLING ELEMENTS
滚动体
滚柱型
Rolling Element
滚珠型
滚针状
圆柱状
球面状
锥状
Bearing compone
nt INNER RING
内圈
CAGE
保持架
OUTER RING
Angular Contact Ball Bearings
角接触球轴承
优点
1) Higher speed than deep groove ball bearing for precision type
适用于精密机械，与深槽滚珠轴承相比可用于更高速
2) Can support radial and axial Load in one direction
Bearing Designation
深沟球轴承 角接触球轴承）
推力圆柱滚子轴承 圆柱滚子轴承 双排圆柱滚子轴承 四点接触球轴承
Bearing Designation
3 0 2 05
轴承编号 x 5
Bearing no. x5
Bearing Bore Dia. 25mm 轴承的内孔直径就等于25mm
偏转机架
Seating offset
座套偏移
Spherical Roller Bearings
Taper Roller Bearing
圆 锥 滚 子 轴 承
Thrust Ball/Roller Bearings
推力球/推力滚子轴承
设计
-Housing washer
机架垫圈（外圈）
-Shaft washer
Ball Thrust Bearing 推力球轴承 Roller Thrust Bearing 推力滚子轴承
轴向的力
Axial Force
One direction or bi-direction
单向或双向
Radial ForCcoembine load
径向的力
轴向的力
Axial Force
EXAMPLES 例如
MAGNITUDE OF
LOAD
负荷量的大小
径向的力 Radial Force Radial load
EXAMPLES 例如
Deep Groove Ball Bearing
深槽滚珠轴承
Cylindrical Roller Bearing
圆筒形滚柱轴承
EXAMPLES 例如 Axial load
缺点
1) Poor in angular misalignment
角度误差大
2) Poor in errors of alignment
_C_ P
C = basic dynamic load rating, N
P
基本动态的负荷, N
P = equivalent dynamic bearing load, N
相等于动态的轴承负荷, N
P = exponent of the life equation 寿命方程式指数
P = 3 for ball bearings 滚珠轴承的指数为3
Min. basic rating life, L10h = 20 000 operating hours.
最少基本寿命，L10h = 20,000 运行小时
From The Chart C/P = 10.6 从图表中得出
一位工程师想要为他的印刷机挑选一个匹配的滚珠轴
An engineer wExaamnplet.s.contto select a ball bearing for his printing machine.
RSR)
RADIAL & AXIAL CLEARANCE