Long Life Double Row Thin-Wall Angular Contact Ball Bearing 3911-3920 3011-3020

• Customization: Available
• Contact Angle: 15°
• Aligning: Non-Aligning Bearing
• Model NO.: 3911-3920 3011-3020
• Separated: Unseparated
• Rows Number: Double
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Precision Rating: P0 P6 P5 P4 P2
• Vibration: V1 V2 V3 V4
• Clearance: C2 C0 C3 C4 C5
• Seals Type: Open, 2RS, Zz
• Tolerance: ABEC1, 3, 5, 7
• Cage: Steel Cage.Copper Cage.Nylon Cage
• Applicable: Mining. Metallurgy. Agriculture. Industrial
• Service: OEM, ODM, Customized Services
• Delivery Method: Air, Sea, Express
• After Service: Within 24 Hours Response
• Transport Package: Industrial or Single Box as Request
• Specification: standard
• Trademark: DOKING
• Origin: China
• HS Code: 84821030
• Production Capacity: 2500000/Year

Product Description

PRODUCT DETAILS

The double-row thin-walled angular contact ball bearing, with its innovative structural design and advanced manufacturing techniques, has become a core component in the field of high-end equipment manufacturing. The exquisite thin-walled structure lies in the fact that by optimizing the material ratio and processing techniques of the raceway, it can maintain excellent compressive strength and fatigue resistance even when the thickness is only one-third of that of traditional bearings. This significantly reduces the overall weight and space occupation of the equipment, providing a crucial support for lightweight design. The precise arrangement of the double-row angular contact balls (with the contact angle customizable from 15° to 45°) forms a unique force balance system. It can precisely distribute radial and axial combined loads according to actual working conditions, effectively suppressing shaft deflection and ensuring the extremely high stability of the equipment operation.

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CATALOGUE

Model NO.	d	D	H	m
7200A	10 mm	30 mm	9 mm	0.03
7201A	12 mm	32 mm	10 mm	0.04
7202A	15 mm	35 mm	11 mm	0.05
7203A	17 mm	40 mm	12 mm	0.07
7204A	20 mm	47 mm	14 mm	0.11
7205A	25 mm	52 mm	15 mm	0.13
7206A	30 mm	62 mm	16 mm	0.2
7207A	35 mm	72 mm	17 mm	0.29
7208A	40 mm	80 mm	18 mm	0.38
7209A	45 mm	85 mm	19 mm	0.41
7210A	50 mm	90 mm	20 mm	0.47
7211A	55 mm	100 mm	21 mm	0.61
7212A	60 mm	110 mm	22 mm	0.8
7213A	65 mm	120 mm	23 mm	1.03
7214A	70 mm	125 mm	24 mm	1.11
7215A	75 mm	130 mm	25 mm	1.19
7216A	80 mm	140 mm	26 mm	1.46
7217A	85 mm	150 mm	28 mm	1.83
7218A	90 mm	160 mm	30 mm	2.25
7219A	95 mm	170 mm	32 mm	2.68
7220A	100 mm	180 mm	34 mm	3.22
7221A	105 mm	190 mm	36 mm	3.84
7222A	110 mm	200 mm	38 mm	4.49
7224A	120 mm	215 mm	40 mm	6.22
7226A	130 mm	230 mm	40 mm	7.06
7228A	140 mm	250 mm	42 mm	8.92
7230A	150 mm	270 mm	45 mm	11.2
7232A	160 mm	290 mm	48 mm	14.1
7234A	170 mm	310 mm	52 mm	17.3
7236A	180 mm	320 mm	52 mm	18.1
7238A	190 mm	340 mm	55 mm	22.4
7240A	200 mm	360 mm	58 mm	26.5
7244A	220 mm	400 mm	65 mm	36.5
7248A	240 mm	440 mm	72 mm	50.9
7252A	260 mm	480 mm	80 mm	65.3
7256A	280 mm	500 mm	80 mm	69
7264A	320 mm	580 mm	92 mm	110
7272A	360 mm	650 mm	95 mm	144
7284A	420 mm	760 mm	109 mm	228

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