Tapered Roller Bearing

Tapered roller bearings are bearings designed to withstand large axial and radial loads, and are composed of an inner cone, an outer cone, rollers, and a cage. The inner and outer cones of the bearing have the same taper angle, and the rollers are distributed between the inner and outer cones via the cage, creating relative motion. The cage serves to fix the position of the rollers within the bearing and maintain equal clearance distribution between them, providing optimal rolling characteristics.

The most common types of tapered roller bearings are single row, double row, and four row. Single row tapered roller bearings are typically used for smaller loads and speeds, while double row and four row tapered roller bearings are used for larger loads and speeds.

Wuxi Jieerte Bearing Co., Ltd. is a professional bearing manufacturer. The company has 20 production lines for 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

We produce tapered roller bearing have the following characteristics:

1. High load-carrying capacity

2. Easy installation

3. Strong adjustment function

4. Good durability

We produce tapered roller bearing mainly through the following steps:

1. Material selection: First, suitable bearing materials need to be selected, typically chromium steel GCr15. These materials have high hardness and strength, and can withstand large loads and wear.

2. Heat treatment: The selected materials are subjected to heat treatment to improve their hardness and strength, typically including quenching and tempering. Quenching can refine the steel's grains and increase its hardness, while tempering can reduce hardness, improve toughness, and make the bearing more resistant to impact.

3. Manufacturing: The heat-treated materials are processed and manufactured, including rough and precision machining. Rough machining mainly includes turning, milling, drilling, and other processes to shape the steel. Precision machining includes grinding, rolling, and other processes to shape the bearing to ensure dimensional accuracy and smoothness.

4. Cleaning and quality inspection: The machined bearings are cleaned to remove surface dirt and debris. Then various performance tests are performed, including dimensional, hardness, and wear resistance tests, to ensure the quality and performance of the bearings meet the requirements.

5. Assembly: The bearing components, including the inner and outer rings, rollers, and cage, are assembled into the bearing product.

6. Lubrication: The apered roller bearing assembled bearing is lubricated to reduce friction, lower wear, and extend service life.

7.Packaging and shipping: The tapered roller 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.

Series:30200 / 30300 / 31300 / 32200 / 32300 / 33100 / 33200 Series

Material:Chrome Steel GCr15

Cages:steel cages

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

Application: Automobiles, rolling mills, mines, gearboxes, construction machinery, cement industry, metallurgical mining industry, heavy machinery and equipment.

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.

Tapered Roller Bearing Product List

Bearing Model	Dimensions(mm)			Basic Load Rating(KN)		Limiting Speed(r/min)		Weight(KG)
Bearing Model	d	D	B	Dyn.C	Stat.CO	Grease	Oil	Weight(KG)
30203	17	40	12	20.8	21.8	9000	12000	0.079
30204	20	47	14	28.2	30.5	8000	10000	0.126
30205	25	52	15	32.2	37	7000	9000	0.154
30206	30	62	17.5	43.2	50.5	6000	7500	0.231
30207	35	72	17	54.2	63.5	5300	6700	0.331
30208	40	80	18	63	74	5000	6300	0.422
30209	45	85	19	67.8	83.5	4500	5600	0.474
30210	50	90	20	73.2	92	4300	5300	0.529
30211	55	100	21	90.8	115	3800	4800	0.713
30212	60	110	22	102	130	3600	4500	0.904
30213	65	120	23	120	152	3200	4000	1.13
30214	70	125	24	132	175	3000	3800	1.26
30215	75	130	25	138	185	2800	3600	1.36
30303	17	47	14	28.2	27.2	8500	11000	0.129
30304	20	52	15	30.5	28.4	8300	11000	0.17
30305	25	62	17	46.8	48	6300	8000	0.263
30306	30	72	21	59	63	5600	7000	0.387
30307	35	80	21	75.2	82.5	5000	6300	0.515
30308	40	90	23	90.8	108	4500	5600	0.747
30309	45	100	25	108	130	4000	5000	0.984
30310	50	110	27	130	158	3800	4800	1.28
30311	55	120	29	152	188	3400	4300	1.63
30312	60	130	31	170	210	3200	4000	1.99
30313	65	140	33	195	242	2800	3600	2.44
30314	70	150	35	218	272	2600	3400	2.98
30315	75	160	37	252	318	2400	3200	3.57
32208	40	80	23	77.8	97.2	5000	6300	0.532
32209	45	84	23	80.8	105	4500	5600	0.573
32210	50	90	23	82.8	108	4300	5300	0.626
32211	55	100	25	108	42	3800	4800	0.853
32212	60	110	28	132	180	3600	4500	1.17
32213	65	120	32	160	222	3200	4000	1.55
32214	70	125	33	168	238	3000	3800	1.64
32215	75	130	33	170	242	2800	3600	1.74

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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