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high speed! high precision! ball bearing and ball bearing sizes

469 Published by admin May 15,2018

high speed! high precision! ball bearing and ball bearing sizes

Ball bearings

Ball bearings are a kind of rolling bearings. The ball bearings are installed in the middle of the inner ring and the outer ring and can withstand large loads. Also called ball bearings.
Structure and composition(ball bearing sizes)
The ball bearing is mainly composed of four basic elements: ball, inner ring, outer ring and retainer also called cage (cage or retainer). General industry ball bearings meet AISI 52100 standards, balls and rings are usually made of high chrome steel. Rockwell hardness (Rockwell C-scale hardness) is approximately between 61-65. The hardness of the retainer is lower than that of the ball and the ring, and its material is metal (such as medium carbon steel, Aluminum alloy) or non-metal (eg Teflon, PTEF, polymer materials). Ball bearings are more than journal bearings
The dynamic frictional resistance is small, so at the same speed, the frictional temperature will be lower. ball bearing sizes

ball bearing sizes

Applications(ball bearing sizes):
The purpose of a ball bearing is to determine the relative position of two parts (usually a shaft and a bearing housing) and to ensure that they rotate freely while transmitting the load between them. 
At speeds (for example, in gyro ball bearings), this use can be expanded to include free rotation with virtually no wear in the bearing. In order to achieve this state, a layer can be used
The adhesive fluid film, which is an elastic hydrodynamic lubricating film, separates the two parts of the bearing. Denhardt (1966) pointed out that not only when the bearing bears the load on the shaft,
In addition, the elastic hydrodynamic lubricating film can be maintained when the bearing is subjected to preload so that the positioning accuracy and stability of the shaft do not exceed 1 micro-inch or 1 nano-inch.
Ball bearings are used in various machines and equipment with rotating parts. Designers often decide whether ball bearings or fluid film shafts should be used in specific applications. The following features make ball bearings more desirable than fluid film bearings in many situations.
1. The starting friction is small and the working friction is suitable.
2. Can withstand radial and axial joint loads.
8. Not sensitive to interruption of lubrication.
4. No self-induced instability.
5. Cold start is easy.
Within a reasonable range, changing the load, speed, and operating temperature have only a small effect on the good performance of the ball bearings.
The following features make ball bearings less desirable than fluid film bearings.
1. Limited changes in fatigue life.
2. The required radial space is large.
3. Low damping capability.
I. The noise level is high.
6. The stricter requirement for the middle.
6. higher cost.ball bearing sizes
According to the above characteristics, a piston film engine generally employs a fluid film bearing, and a jet engine almost exclusively uses a ball bearing. Various types of bearings have their own unique advantages.
At a given point, the most suitable bearing type should be carefully selected for a given application. The British Engineering Scientific Data Organization (ESDU 1965, 1967) has been the selection axis
Adhering to this important issue provides useful guidelines.

About the related ball bearing sizes:

6000

10*26*8 6200 10*30*9 6300 10*35*11
6001 12*28*8 6201 12*32*10 6301 12*37*12
6002 15*32*9 6202 15*35*11 6302 15*42*13
6003 17*35*10 6203 17*40*12 6303 17*47*14
6004 20*42*12 6204 20*47*14 6304 20*52*15
6005 25*47*12 6205 25*52*15 6305 25*62*17
6006 30*55*13 6206 30*62*16 6306 30*72*19
6007 35*62*14 6207 35*72*17 6307 35*81*21
6008 40*68*15 6208 40*82*18 6308 40*90*23
6009 45*75*16 6209 45*85*19 6309 45*100*25
6010 50*80*16 6210 50*90*20 6310 50*110*27
6011 55*90*18 6211 55*100*21 6311 55*120*29
6012 60*95*18 6212 60*110*22 6312 60*130*31
6013 60*100*18 6213 65*120*23 6313 65*140*33
6014 70*110*20 6214 70*125*24 6314 70*150*35
6015 75*115*20 6215 80*130*25 6315 75*160*37
6016 80*125*22 6216 80*140*26 6316 80*170*39
6017 85*130*22 6217 85*150*28 6317 85*180*41
6018 90*140*24 6218 90*160*30 6318 90*190*43
6019 95*145*24 6219 95*170*32 6319 95*200*45
6020 100*150*24 6220 100*180*34 6320 100*215*47
6021 105*160*26 6221 105*190*36 6321 105*225*49
6022 110*170*28 6222 110*200*38 6322 110*240*50
6024 120*180*28 6224 120*215*40 6324 120*260*55
6026 130*200*33 6226 130*230*40 6326 130*280*58
6028 140*210*33 6228 140*250*42 6328 140*300*62
6030 150*225*35 6230 150*270*45 6330 150*320*65
6032 160*240*38 6232 160*290*48 6332 160*340*68

If you want to place the order, please contact me, if you have any questions, it is no problem, please tell me, I will try my best to help you choose.

Contact: Ellen
Email: iko@zyslbearing.com
Skype: +8618668909563
MP/Whatsapp: +8618668909563
Wechat:18668909563

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