Bearing Supplier Tapered Roller Bearing 30311 30312 30313

• Customization: Available
• Material: Gcr15
• Cage Material: Top Pressure
• Model NO.: 30311
• Item Number: 30311
• Type of Shipping: Sea/Air/Land
• Packaging: Carton/ Pallet
• Weight: 1.63kg
• Inner: 55mm
• Outer: 120mm
• Assembly Height: 31.5mm
• Old Items Number: 7311e
• Transport Package: Carton or Pallet
• Specification: 55*120*31.5mm
• Trademark: SFC or OEM
• Origin: China
• HS Code: 8482200000
• Production Capacity: 10000000pieces/Year

Product Description

Product Description

Tapered roller bearing is a type of separable bearing with a conical structure on both the inner and outer rings. This type of bearing is divided into different structural types such as single row, double row, and four row according to the number of roller rows installed. Single row tapered roller bearings can withstand radial loads and axial loads in a single direction. When a bearing is subjected to radial load, an axial force component is generated, so another bearing is needed to withstand the axial force in the opposite direction to maintain balance.


The structure, assembly dimensional accuracy, and rotational accuracy of Inch size tapered roller bearings are different from those of metric bearings. Mostly used in industries with imported machinery or special needs.

Bearing Type				Basic dimensions				Limit speed		Rated load		Weight(kg)
New Type		Original Type		(mm)d	(mm)D	Assembly height(mm)T		Grease	Oil	Dynamic	Static
30303		7303E		17	47	15.25		9200	12000	27400	24500	0.129
30304		7304E		20	52	16.25		8300	11000	31500	33200	0.165
30305		7305E		25	62	18.25		6900	8700	49200	48100	0.265
30306		7306E		30	72	20.75		5900	7500	61300	62600	0.387
30307		7307E		35	80	22.75		5200	6600	78400	82000	0.518
30308		7308E		40	90	25.25		4600	5800	95200	107500	0.746
30309		7309E		45	100	27.25		4100	5200	114000	129700	0.988
30310		7310E		50	110	29.25		3800	4800	122300	154500	1.28
30311		7311E		55	120	31.5		3400	4300	158700	184700	1.63
30312		7312E		60	130	33.5		3200	4000	177600	207000	2.003
30313		7313E		65	140	36		2900	3700	203700	239400	2.43
30314		7314E		70	150	38		2700	3500	228100	269600	3.006
30315		7315E		75	160	40		2600	3200	264800	318700	3.57
30316		7316E		80	170	42.5		2400	3000	292000	352400	4.27
30317		7317E		85	180	44.5		2300	2900	319400	388100	4.958
30318		7318E		90	190	46.5		2100	2700	358300	440800	5.79
30319		7319E		95	200	49.5		2000	2600	368500	477700	6.782
30320		7320E		100	215	51.5		1700	2400	350000	343000	8.22
30321		7321E		105	225	53.5		1500	1900	432000	562000	9.38
30322		7322E		110	240	54.5		1400	1800	472000	612000	11
30324		7324E		120	260	59.5		1500	2000	435000	410000	14.2

 

Detailed Photos

The parameters of the inch size tapered roller bearing 30311  are an inner diameter of 55mm, an outer diameter of 120mm, and a thickness of 31.5mm. These dimensional parameters make the bearing suitable for specific mechanical designs and application scenarios. In addition, the retainer type of the bearing is TS stamped steel retainer, which helps improve the durability and stability of the bearing.
 

 

Packaging & Shipping

We can do our brands,OEM orders,can according to customer requirements to customized.About MOQ,kindly contact our sales manager.
 

Industrial Packaging
(Tube)

 

Single Box

 

Pallet

 

 

Application

Tapered roller bearings are widely used in various fields, including the automotive industry, railway transportation, engineering machinery, wind power generation, mining equipment, aerospace, and metallurgical equipment.



Automotive industry: Conical roller bearings play an important role in the automotive industry, especially in the transmission, differential, wheel hub, and drive shaft, which can withstand high-speed rotation and large torque, while effectively reducing friction and wear and improving transmission efficiency.

Railway transportation: In the railway transportation industry, tapered roller bearings can withstand high-speed rotation and large radial loads, ensuring the safe operation of trains, and are also used in the transmission systems of railway locomotives and passenger cars.

Construction Machinery: In the construction machinery industry, such as excavators, bulldozers, and loaders, tapered roller bearings can withstand large radial and axial loads, while also having high rigidity and durability.

Wind power generation: In the wind power industry, tapered roller bearings are widely used in the main shaft, which can withstand the huge radial and axial forces generated by the rotation of fan blades.

Mining equipment: In mining equipment such as ore crushers and screening machines, tapered roller bearings can withstand large impact and vibration loads, while also having high reliability and durability.

Aerospace: In the aerospace field, tapered roller bearings are widely used in important parts such as aircraft engines, landing gear, and navigation equipment due to their special structural design and manufacturing process, which can meet the requirements of high-speed rotation and complex loads.

Metallurgical equipment: In metallurgical equipment such as rolling mills and continuous casting machines, tapered roller bearings can withstand large loads and impact loads, while also having high rotational speed and rigidity.

 

 

 

 

Company Profile

SFC factory was established in 2003, mainly producing middle and high quality automobile bearing,tapered roller bearings, deep groove ball bearings, pillow block ball bearings,. We have nearly 20 years of experience in bearing production and processing, research and development, and advanced production technology. The bearings we produce have stable quality, high speed and long service life. They are widely used in agricultural machinery, food machinery, packaging machinery, motors, motorcycles, automobiles and other industries.

Our products are sold all over the country and exported to Russia, Mexico, Italy, Brazil, Southeast Asia, India and the Middle East, of which 60% are our own brand "TBAI" "SFC" and 40% are OEM authorized by our customers. production.

Our company has established a strong relationship with our customers for high quality, high efficiency, high cost performance and high satisfaction! Our goal is to continuously innovate and strive to become the best supplier in the field of bearings worldwide.

 

 

EXHIBITION SHOW

 

 

Our Advantages

Price competitiveness: As factories we can achieve significant price advantages through large-scale production and direct control of production costs. 

Direct production control: The factory has comprehensive control over the production process, from raw material procurement to final products, all under its control. This not only ensures product quality and meets specific customer needs, but also significantly improves delivery timeliness.

As a factory with more than 20 years of experience, we not only have the ability to produce high-quality products, but also meet your various customization needs. We have always put your needs first and are dedicated to serving you.

 

                               Accessories Supplier                                                                        Testing  Equipment                                                              
 

 

FAQ

If you are finding tapered roller bearings,and others bearings,kindly contact our sales manager.Here are some common questions.If you also have any other questions,please feel free to contact us.

1.Q :What are you factory or trading company?
A:We are factory.But in order to conduct international business and serve global customers more professionally and efficiently, we established an import and export company in Jinan in 2022: Shandong Beiyang International Trade Co., Ltd. This company is a subsidiary of Liaocheng Gaoyin Bearing Co., Ltd. (factory), and all its import and export business revolves around the factory.

2.Q:What's your after-sales service and warranty?

A: We promise to bear the following responsibilities when defective products were found:
1. Replacements would be sent with goods of your next order;
2. We can provide monetary compensation for defective products that have been not been used yet.

3.Q:Do you accept ODM&OEM orders?
A:Yes, we provide ODM&OEM services to worldwide customers, we also customize OEM box and packing as your requirements.

4.Q:What's the MOQ?
A:According to customer specific inquiry,MOQ can adjust.It's flexible.

5.Q:How long is the lead time?
A:Produce one container products need about 10-15 days.

6.Q:Do you offer free samples? 
A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight. We DO NOT offer free samples to end users.

7.Q:How to place order?
A: 1. Email us the model number, brand ,quality precision and quantity,shipping way of bearings and we will quote best price for you; 
2. Proforma Invoice made and sent to you as the price agreed by both parts; 
3. Deposit Payment after confirming the PI and we arrange production; 
4. Balance paid before shipment or after copy of Bill of Loading.