Double Row Deep Groove Ball Bearing

Komel Bearing Co.,Ltd. is a leading Double Row Deep Groove Ball Bearing manufacturer and supplier in China. We have been specialized in bearing filed for many years. Our products have a good price advantage and we have exported our bearings to many markets. We look forward to become your long-term partner in China.

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Product Description

The Double Row Deep Groove Ball Bearings produced by KOMEL are composed of an inner ring, an outer ring, two rows of steel balls and two nylon cages. They have no ball gaps and a compact structure. Our double row deep groove ball bearings have strong radial load capacity: the radial load capacity is about 1.62 times that of a single-row deep groove ball bearing of the same size, which is suitable for high-load scenarios. It can withstand axial loads in both directions, but the pure axial load does not exceed 0.5 times the rated static load (i.e.≤0.5Co), otherwise the life will be greatly reduced. The allowable angular error between the inner and outer rings is only 2 arc minutes, which will cause noise, increased wear and shortened life.

Parameter (Specification)

Model Number	Inner Diameter	Outer Diameter	Width
4200 ATN9	10	30	14
4201 ATN9	12	32	14
4202 ATN9	15	35	14
4203 ATN9	17	40	16
4204 ATN9	20	47	18
4205 ATN9	25	52	18
4206 ATN9	30	62	20
4207 ATN9	35	72	23
4208 ATN9	40	80	23
4209 ATN9	45	85	23
4210 ATN9	50	90	23
4211 ATN9	55	100	25
4212 ATN9	60	110	28
4213 ATN9	65	120	31
4214 ATN9	70	125	31
4215 ATN9	75	130	31
4216 ATN9	80	140	33
4217 ATN9	85	150	36
4218 ATN9	90	160	40
4220 ATN9	100	180	46
4301 ATN9	12	37	17
4302 ATN9	15	42	17
4303 ATN9	17	47	19
4304 ATN9	20	52	21
4305 ATN9	25	62	24
4306 ATN9	30	72	27
4307 ATN9	35	80	31
4308 ATN9	40	90	33
4309 ATN9	45	100	36
4310 ATN9	50	110	40
4311 ATN9	55	120	43
4312 ATN9	60	130	46
4313 ATN9	65	140	48
4314 ATN9	70	150	51
4315 ATN9	75	160	55

Suffixes

1. Sealing/Dust Protection Types

Suffix	Meaning	Example
Z	Single steel plate dust cover (non-contact, moderate dust protection)	6203-Z
2Z	Double steel plate dust covers	6008-2Z
RZ	Single low-friction rubber seal (non-contact, good oil/dust resistance)	6205-RZ
2RZ	Double low-friction rubber seals	6302-2RZ
RSL	Single low-friction seal (SKF design, for small-size bearings)	6004-RSL
2RSL	Double low-friction seals	6206-2RSL
RSH	Single contact-type rubber seal (higher friction, excellent protection)	6303-RSH
2RSH	Double contact-type rubber seals	6207-2RSH

2. Clearance Classes

Suffix	Meaning	Example
C0	Normal clearance (default, omitted)	6200
C2	Clearance smaller than normal class	6305-C2
C3	Clearance larger than normal class	6008-C3
C4	Clearance larger than C3 class	6210-C4
C5	Maximum clearance	6312-C5

3. Accuracy Classes

Suffix	Meaning	Example
P0	Normal accuracy (default, omitted)	6203
P6	Higher accuracy than P0 (ISO class 6)	6006-P6
P5	High accuracy (ISO class 5)	6204-P5
P4	Ultra-high accuracy (ISO class 4, for precision equipment)	6302-P4

4. Cage Materials

Suffix	Meaning	Example
M	Brass solid cage (ball-guided)	6205-M
TB	Phenolic laminated tube cage (inner ring-guided)	6303-TB
L	Light alloy cage	6007-L

5. Locating Groove/Ring

Suffix	Meaning	Example
N	Outer ring with locating groove	6206-N
NR	Outer ring with locating groove + retaining ring	6304-NR
ZNR	Single dust cover + outer ring locating groove + retaining ring	6208-ZNR

6. Special Designs

Suffix	Meaning	Example
S0	High-temperature tempering (resistant to 150℃)	6210-S0
S1	Resistant to 200℃	6305-S1
VA208	High-temperature bearing (graphite cage + manganese phosphating)	6211-2Z/VA208