6218 2RS Deep groove ball bearings

Model: 6218 2RS
Place of Origin: Zhejiang,China (Mainland)
Brand Name: RNB OR NATURAL
Number of Row: Single row
Type: Ball bearings
Material of race: Chrome steel
Material of ball: Chrome steel
Precision: P6

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Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:L/C, T/T, WUProduction Capacity:50000Piece/Pieces per...
Min. Order:1 Piece/PiecesPacking:RNB OR NATURAL
Means of Transport:Ocean, AirDelivery Date:30 days

Deep groove ball bearings 6218 2RS

Demension: 90x160x30mm,   weight:2.15kg.

1)Materials for rings and rolling elements

While the contact surfaces between the bearing rings and rolling elements are subjected to repeated heavy 

stress,they must still maintain high rotational precission,therefore, the materials used for bearings rings 

and rolling elements require the following characteristics:

●High rolling contact fatigue strength

●High hardness

●High wear resistance

●High dimensional stability

●High mechanical strength

The material used by our companyis high carbonchromium bearings steel GCr15-GB/T18254 equivalent such as 

AISI52100(USA),DIN100Cr6(Germany) JISSUJ2(Japan) and BS534A99(UK).

2)Materials for cages

The materials for cages must have strength to with stand rotation at load and shock load. Low frictional 

efficiency light weight and be able to with stand operation temperature.

The material used in ribbon cages or crown cages is 08F or SPCC pressed.

It is chemical compositionis shown for extra-high speed application. Plastic cages such as glass reinforced 

polymideareused.These plastic crown have the advantages oflow torque,long grease lefe and low noise,etc.

3)Vibration and noise

● The measuring parameter of vibration adopted by RNB is the vibration acceleration of vibration velocity.

● The measuring units and measuring method are specified by JB/T5314 and JB/T5313 In the process of 

measuring vibration strictly controlled noise by using acoustics.

4)Internal clearance

Single row deep groove ball bearings are manufactured with Normal radial internal clearanceas standard. 

Most of the bearings are also available with C3 radial internal clearance. Some of the bearings can also be supplied with as maller C2 clearance or the much greater C4 or C5 clearances. In addition, deep groove ball bearings are available with reduced or displaced internal clearance ranges. These special clearances may use reduced ranges of standard clearance classes or partitions of adjacent classes, see designation suffix CN insection.


5)Tolerances

Single row deep groove ball bearings are manufactured as standard to normal tolerances.

Single row deep groove ball bearings are produced to higher precision than the ISO Normal tolerances. 

The dimensional accuracy corresponds to P6 tolerances, expect the width tolerance,which is considerably 

tighter and reduced to


-0/–60μm for bearings with outside diameter up to 110 mm
-0/–100 μm for larger bearings.

The running accuracy depend on the bearing size and corresponds to

-   P5 tolerances for bearings up to a 52mm outside diameter
-   P6 tolerances for bearings above 52 mm up to 110 mm outside diameter
-   Normal tolerances for larger bearings.

For bearing arrangements where accuracy is a key operational factor, some SKF single row deep groove ball bearings are also available with accuracy completely to P6 or P5 tolerance classs pecifications.The availability of these bearings should always be checked before ordering.







Shape Dimension(mm)Steel Ballbasic Load Rating(KN)Max Speed(rpm)
Bearing NO.BoreOuter DiameterWidthRadiusSizeQuantityDynamicStatic

Weight
dDBr min
mminchmminchmminchmminchmmNO.CrCorGreaseOilKg
6200  Series
62330.1181100.393740.15750.150.00591.58870.50.215638000480000.0015
62440.1575130.511850.19680.20.00792.38161.150.436000450000.0032
62550.1968160.629950.19680.30.01182.38181.880.6832000400000.0048
62660.2362190.74860.23620.30.01183.96962.81.0528000360000.0075
62770.2756220.866170.27560.30.01183.96973.281.3526000340000.012
62880.3149240.944880.31490.30.01183.96983.351.424000320000.017
62990.3543261.023680.31490.30.01184.574.451.9522000300000.019
6200100.3937301.181190.35430.60.02364.76385.12.3819000260000.028
6201120.4724321.2598100.39370.60.02365.95376.823.0518000240000.034
6202150.5906351.378110.43310.60.02365.95387.653.7217000220000.043
6203170.6693401.5748120.47240.60.02366.74789.584.4716000200000.062
6204200.7874471.8504140.551210.03947.93889.886.214000180000.102
6205250.9843522.0472150.590610.03947.938910.786.9812000160000.12
6206301.1811622.4409160.629910.03949.525914.9710.049500130000.19
6207351.378722.83461766931.10.043311.112919.7513.678500110000.27
6208401.5748803.1496180.70861.10.043312922.7115.948000100000.37
6209451.7717853.3465190.7481.10.0433121024.3617.71700090000.38
6210501.9685903.5433200.78741.10.043312.71026.9819.84670085000.45
6211552.16531003.937210.82681.50.059114.2881033.3725.11600075000.603
6212602.36221104.3307220.88611.50.059115.0811036.7427.97560070000.789
6213652.5591204.7244230.90561.50.059116.6691044.0134.18500063000.99
6214702.75591254.9212240.94491.50.059116.6691146.7937.59480060001.084
6215752.95281305.1181250.98431.50.059117.4621150.8541.26450056001.171
6216803.14961405.5118261.023620.078818.2561155.0445.09430053001.448
6217853.34641505.9055281.102420.078819.8441164.0153.28400050001.803
6218903.54331606.2992301.181120.078822.2251073.8360.76380048002.17

Deep groove ball bearings 6218 2RS

Category: Single row deep groove ball bearing

Related Category: Single row deep groove ball bearing