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A Presentation on INTRODUCTION TO BALL BEARINGPresented ByRam lakhan meena2012BTME040Under the Guidance of National Engineering Industries LimitedDr. K. N. Modi University,Newai Tonk, rajasthan2015-2016

4Almost all parts of all ball bearings are made of steel. Since the bearing has to stand up to a lot of stress, it needs to be made of very strong steel. The standard industry classification for the steel in these bearings is 52100, which means that it has one percent chromium and one percent carbon (called alloys when added to the basic steel). This steel can be made very hard and tough by heat treating. Where rusting might be a problem, bearings are made from 440C stainless steel.

Ourte ringInner ringSteel ballsCage

Is used support radial and axial load13

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The Hardness of steel is achived by a chougai ro heat treatment process in which is steel microstructure manipluted by cycle heating and quick cooling obtain the optium hardness range the steel rings. Usually the hardenss range are 60 to 65 on rockwell c hardness scale.Steel rings are suddenly quenched by quneching oil and air steel materials formes extremely hard & stronge.

BY AIRJOB PRE -WASHING(KAROSINE) ZONE 1 840`C ZONE 2 850` C ZONE 3 850`C ZONE 850` CHINEING FURNACE

115`cQUENCHING OIL TANKAIR +2 p.gmixtureBy air coolingTemperi-ng furnace170`c 90 minuteByCoolingair35-60 min. heating. Quenchin5-15 minute hardnee 60 -64 rac19Temperi-ng furnace170`c 90 minuteBy coolin-g airBy air cooling

. Face . OD. Track . Face grinding G 81Machine Name- nisseiB.N. 6203By using out wheel (abrassive wheel)For face making.Machine temprature are maintain by air conditionar . 25~30 c.

OD Grinding - grinding wheel and regulate wheel are use to grind OD.B.n. 6203By using coolant in cutting tool be OD grind by wheel.Procees involed in OD Grinding:Hopper ir sensor grinding wheel

After rough od we do finish Od . Rough Od

Machine name- IZUMI (KN 2130) B.n. 6204

HOPPER CONVEYOUR IR-- SENSOR OUTER TRACK GRINDING

Conyeour

conyeour ConyeourOuter track super grindingDEMAGEN--ETWashing panelASSAM-BLYGRINDING small wheel Are used make outer track.HopperIr proximatry sensorGrinding wheelSpindleUpper armLower arm

In Outer track super grindingWe are use to stone to give a Super pollish of outer track.In outer track super grinding We are use two types of stone.YellowGreenCnc machine are useLeft headRight head

Inner rings -TrackBoreInner track grinding-1. work head2. Wheel3. Dressor4. Arm5. Grinding coolant6. Gauge 7. Motor

We use to Abrassive wheel grind inner track. one by one inner are Comes to hopper and grind by abrassiveWheel.After inner track Grinding bearing goEs for demagnet .

B.N. 6204MEAN SIZE- (5) MICRONSLIDEBacking plateSpindleLoadinggrinding

Inner track are use to two types Stone to super pollishing of Inner track.Yellow stone and green stone to Be used pollishing of inner Track.

MACHINE NAME CAULKA ASSAMBLY MACHINE.

IR /OR WASHINGIR /OR TRACK DIA. checkingpairingBall fillingCage assam-blyCage assamblydemagenetUltra sonic washi-ngNoise checki-ngLaser markingVaccume dryin-ggreeci-ngRubber sealRolling bearing part numbers indicate Bearing type, Dimensions, Tolerance, Internal Construction & other related sphe Digits & Indications are:- 1stDigit Bearing Type. 2ndDigit Width or Height Series 3rdDigit Diamete Series Last 2 Digits Bore Diameter

B.N. 62076- DEEP groove BALL BEARING2- DIAMETER SERIES 207- NOMINAL BORE DIAMETER (35)Inside diameter- 35 mmOutside diameter- 72 mmWidth 17mmZz- double type groov on outer

APPLICATION B.N.FAN(ORIENT) 6203 BAJAJ 150CC CRANK CASE 6203BAJAJ PULSAR 220CC (FRONT WHEEL) 6301 (2)ENGINE FLYWHEEL(EIACHER MOTORS) 6202