6004-2RS Deep groove ball bearings 20x42x12 mm

Model: 6004-2RS
Place of Origin: Zhejiang,China (Mainland)
Brand Name: RNB OR NATURAL
Structure: Deep Groove
Type: ball bearing
Number of Row: Single Row
Material of race: Chrome steel
Material of ball: Chrome steel
Precision: P6

inquiry

basketAdd to Basket  Edit

Share |

Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:L/C, T/T, WUProduction Capacity:500000 Piece/Pieces...
Min. Order:10000 Piece/PiecesPacking:RNB OR NATURAL
Means of Transport:Ocean, AirDelivery Date:30 days

Deep groove ball bearings 6004-2RS

1)Materialsforringsand rolling elements


While thecontact surfacesbetweenthebearing rings and rolling elements are subjected torepeated 

heavystress,theymust still maintain high rotational precission,therefore, thematerials usedforbearings 

rings and rolling elementsrequirethefollowingcharacteristics:

●High rollingcontactfatiguestrength

●Highhardness

●Highwearresistance

●Highdimensionalstability

●Highmechanicalstrength

The material usedby ourcompany is high carbon chromiumbearingssteel GCr15-GB/T18254 equivalentsuch asAISI 

52100(USA), DIN100Cr6(Germany) JISSUJ2(Japan) and BS534A99(UK).

2)Materialsforcages

The materialsfor cages must have strength towithstandrotation at load and shock load. Lowfrictional 

efficiency light weightand beable to withstand operationtemperature.

The material used in ribboncagesor crown cages is 08F orSPCC pressed.

It is chemical composition isshownfor extra-high speedapplication. Plastic cages such as glass reinforcedpolymideareused.

These plastic crown have the advantages of low torque,longgreaselefe and low noise, etc.

3)Vibrationandnoise

●The measuring parameter of vibrationadopted by RNBisthe vibration acceleration of vibration velocity.

● Themeasuringunitsand measuring method are specified by JB/T5314 and JB/T5313In theprocessofmeasuring 

vibration strictly controlled noisebyusingacoustics.

4)Internal clearance

Singlerowdeepgroove ball bearings are manufactured with Normal radial internalclearanceasstandard. Most of

the bearings are also available with C3radialinternalclearance. Some of the bearings can also be supplied 

with asmaller C2clearanceor the much greater C4 or C5 clearances. In addition, deepgroove ballbearingsare 

available with reduced or displaced internal clearanceranges. Thesespecialclearances may use reduced ranges

of standard clearanceclasses orpartitions ofadjacent classes, see designation suffixCNinsection.

5)Tolerances

Single row deepgrooveballbearings are manufactured as standard to normaltolerances.

Singlerowdeep groove ball bearings are produced to higherprecision than the ISONormaltolerances. The 

dimensional accuracy corresponds toP6 tolerances, expectthewidth tolerance, which is considerably tighter

andreduced to

-0/–60μmfor bearings with outside diameter up to 110 mm

-0/–100 μm forlargerbearings.

The running accuracy depend on thebearing size andcorrespondsto

-  P5 tolerances for bearings up to a 52mm outsidediameter

-  P6tolerances for bearings above 52 mm up to 110 mmoutsidediameter

-  Normaltolerances for larger bearings.

For bearing arrangements whereaccuracy is a key operational factor, some SKF singlerow deep groove 

ball bearings are also available with accuracy completely to P6 or P5 tolerance classs pecifications. The 

availability of these bearings shouldalwaysbe checked before ordering.

RNBShape Dimension(mm)basic Load Rating(KN)Max Speed(rpm)Weight
BoreOuter DiameterWidthRadius
Bearing NO.dDBr minDynamicStaticGreaseOil(kg)
mminchmminchmminchmminchCrCor
60660.2362170.669360.23620.30.01181.950.7230000380000.0057
60770.2756190.74860.23620.30.01182.881.0828000360000.0071
60880.3149220.866170.27560.30.01183.321.3826000340000.011
60990.3543240.944970.27560.30.01183.351.422000300000.014
6000100.3937261.023680.31490.30.01184.581.9820000280000.018
6001120.4724281.102480.31490.30.01185.12.3819000260000.02
6002150.5906321.259890.35430.30.01185.582.8518000240000.026
6003170.6693351.378100.39370.30.011863.2517000220000.036
6004200.7874421.6535120.47240.60.02369.385.0215000190000.069
6005250.9843471.8504120.47240.60.023610.15.8513000170000.075
6006301.1811552.1654130.511810.039410.186.9110000140000.116
6007351.378622.4409140.551210.039412.478.669000120000.155
6008401.5748682.6772150.590610.039413.19.458500110000.185
6009451.7717752.9528160.629910.039416.2211.968000100000.231
6010501.9685803.1496160.629910.039416.9412.95700090000.25
6011552.1653903.5433180.70861.10.043323.2817.86700085000.362
6012602.3622953.7401180.70861.10.043324.3519.35630075000.385
6013652.5591003.937180.70861.10.043324.6619.74600070000.41
6014702.75591104.3307200.78741.10.043329.6824.2560067000.575
6015752.95281154.5275200.78741.10.043330.9126.06530063000.603
6016803.14961254.9212220.86611.10.043336.5731.36500060000.821
6017853.34641305.1181220.86611.10.043339.0433.75450056000.848
6018903.54331405.5118240.94491.50.059144.6339.16430053001.1

Deep groove ball bearings




Deep groove ball bearings 6004-2RS

Category: Single row deep groove ball bearing

Related Category: Single row deep groove ball bearing