Double Row Deep Groove Ball Bearing

Double row deep groove ball bearings generally consist of inner and outer rings, balls, and a cage. The inner and outer rings are typically made of high-strength steel, while the balls are made of special steel and are precision-machined before being inserted into the double-row raceways inside the bearing. The cage is usually made of copper alloy or high-strength plastic and is used to maintain a proper spacing between the balls, preventing them from colliding and rubbing against each other.

Compared to single-row deep groove ball bearings, double-row deep groove ball bearings can withstand larger loads and higher speeds, and have higher rigidity and better operational stability. Due to their double-row raceway design, they are also more suitable for installation on wider shafts.

Wuxi Jieerte Bearing Co., Ltd. is a professional manufacturer of deep groove ball bearings. The company has 20 production lines for deep groove ball bearings, with a daily output of 100,000 sets. Its quality and environmental management system have passed ISO 9001 and ISO 14001 certification. The company has its own brand "JSJET" and also provides OEM services. Our products are known for their high precision, low noise, long service life, and stable performance. They are widely used in various industries such as motors, water pumps, automobile transmissions, motorcycle engines, conveying systems, agricultural machinery, mining equipment, and construction machinery.

What are our advantages?

(1) Advanced production equipment

(2) Strong technical force

(3) High production capacity

(4) Short delivery time

(5) Low MOQ

(6) Strict quality control

(7) Competitive price

(8) ISO9001:2018 certification

Series: 4200eries,4300Series

Material:Chrome Steel GCr15

Csages：steel cages, brass cages , nylon cage

Sealing/Shield:Z, ZZ, RS, 2RS，Opean

Quality:ABEC-1（P0）、ABEC-3（P6）、ABEC-5（P5）

Noise Level:Z1V1,Z2V2,Z3V3,Z4V4

Package

A. Industrial Exporting Package with anti-tarnish

paper/Carton/Pallet

B. Individual Paper Box/Carton/Pallet

C: tube package+middle box+outer carton+pallets

D: According to your requirement.

We produce double row deep groove ball bearing have the following characteristics:

1. High load capacity: Double row deep groove ball bearings can simultaneously withstand large radial and axial loads due to the design of its balls and cage, which allows for the free rotation of the balls within the bearing, distributing the load and improving load capacity.

2. Good rigidity: The design of double row balls results in good rigidity for double row deep groove ball bearings, enabling them to resist certain angles and vibrations.

3. Long service life: Double row deep groove ball bearings are made of high-quality steel, with precise control of the gap between the balls and the inner and outer rings, and through scientific lubrication design, enabling the bearings to maintain good operating conditions for a long period, extending their service life.

4. Wide application: Double row deep groove ball bearings are widely used in various machinery and equipment, such as machine tools, lifting equipment, agricultural machinery, construction machinery, etc., to meet various working environments and load requirements.

We produce double row deep groove ball bearing mainly through the following steps:

1. Material preparation: The production of double row deep groove ball bearings requires the use of high-quality steel. Material preparation includes cutting, shaping, and steel ball manufacturing, ensuring that the material meets standard requirements.

2. Inner and outer ring machining: Inner and outer ring machining is one of the crucial steps in the manufacture of double row deep groove ball bearings. Inner and outer rings are typically machined using lathes or grinders to ensure that the geometric accuracy and surface quality of the rings meet requirements.

3. Ball and cage machining: Ball and cage are two other key components of double row deep groove ball bearings. Ball manufacturing requires processes such as rolling and pressing to ensure that the size and surface quality of the balls meet standard requirements. Cage manufacturing typically involves processes such as injection molding and cold heading to ensure the accuracy and strength of the cage.

4. Assembly: Assembly of double row deep groove ball bearings involves assembling the inner ring, outer ring, steel balls, and cage together and sealing the bearings with components such as a sealing cover.

5. Testing: During the manufacturing process, various parameters of double row deep groove ball bearings need to be checked, including dimensional accuracy, axial clearance, load-bearing capacity, and operational stability, among others, to ensure that the bearings meet relevant standard requirements.

6.Packaging and shipping: The double row deep groove ball bearing that have undergone quality inspection need to be packaged to protect them from damage. Common packaging materials include cartons, wooden boxes, and pallets. Finally, the products can be shipped to customers by sea, air, or land transportation.

Double row deep groove ball bearing product list

Bearing Model	Dimensions(mm)			Basic Load Rating(N)		Limiting Speed (r/min)		Weight (Kg)
	Dimensions(mm)			Basic Load Rating(N)		Limiting Speed (r/min)
	d	D	B	Dyn.c	Stat.Co	Grease	Oil
	d	D	B	Dyn.c	Stat.Co	Grease	Oil
4200	10	30	14	7700	5900	15000	20000	0.057
4201	12	32	14	7750	6150	14000	18000	0.062
4202	15	35	14	9750	9000	12000	16000	0.071
4203	17	40	16	11700	10400	11000	14000	0.106
4204	20	47	18	16400	16000	9000	12000	0.165
4205	25	52	18	16300	16900	7500	9900	0.189
4206	30	62	20	22000	24700	6400	8500	0.298
4207	35	72	23	26400	30700	5600	7400	0.46
4208	40	80	23	33700	42400	4700	6300	0.558
4209	45	85	23	31900	43900	4600	6100	0.605
4210	50	90	23	31400	44600	4200	5600	0.651
4211	55	100	25	37200	54100	3800	5000	0.882
4212	60	110	28	47900	67600	3500	4700	1.2
4213	65	120	31	54700	78500	3200	4300	1.59
4214	70	125	31	62100	89800	3100	4100	1.68
4215	75	130	31	61600	90700	2900	3900	1.77
4302	15	42	17	13100	11700	11000	14000	0.123
4303	17	47	19	16500	15000	9400	13000	0.171
4304	20	52	21	19500	17000	8300	11000	0.227
4305	25	62	24	26300	25700	6700	9000	0.365
4306	30	72	27	35500	35900	5700	7600	0.542
4307	35	80	31	40600	41800	5200	7000	0.752
4308	40	90	33	46000	48800	4600	6100	1.01
4309	45	100	36	57600	62400	4100	5500	1.35
4310	50	110	40	70400	77700	3700	5000	1.8
4311	55	120	43	84200	94400	3400	4600	2.29
4312	60	130	46	99200	113000	3100	4200	2.87
4313	65	140	48	107000	124000	2900	3900	3.46
4314	70	150	51	115000	136000	2700	3600	4.21

Our Production Workshop

Q1: Are you a trading company or a manufacturer?

A1: We are a manufacturer.We have our own factory ;our type is factory +trade

Q2: How long is your delivery time?

A2: Generally it is 15-20 days, if the goods are in stock, it is 3-7 days, if the goods are not in stock, it depends on the quantity.

Q3: Do you provide samples? Is it free or extra?

A3: Yes, we can provide samples for free, but we don't pay shipping fee.

Q4. How do you control the quality,and what if there is quality problem?

A4: All bearings will be 100% strictly inspected before shipment, including hardness, size, noise, speed, vibration and accuracy. If there is any quality problem, we will replace all faulty products with our shipping cost or refund to you.

Q5:OEM and customized can you accept?

A5: Yes, OEM is accepted, also can be customized for you according to samples or drawings

Q6: What are your shipping conditions.

A6: We can arrange shipping by sea to your nearest seaport or deliver to your doorstep. Air freight is also possible. We can help with all import formalities. It takes about 25-40 days by sea and 3-7 days by air.

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