NN3018KR Double Row Cylindrical Roller Bearing NN3018 NN3018K 90*140*37mm

What is a precision cylindrical roller bearing?

In the application of machine tool spindles, double-row precision cylindrical roller bearings are also used, usually combined with precision angular contact ball bearings or thrust bearings. These bearings can withstand large radial loads and allow higher speeds. The two rows of rollers in a metal-machined online bearing are arranged in a crossed manner, and the frequency of fluctuation during rotation is significantly higher than that of a single row bearing, and the amplitude is reduced by 60% -70%. This type of bearing usually has two forms: NN30, NN30K two series of bearings with flanges on the inner ring, the outer ring can be separated; NNU49, NNU49K two series of bearings with flanges on the outer ring, the inner ring can be separated, of which NN30K and NNU49K series The inner ring is a tapered hole (taper 1:12), which cooperates with the tapered journal of the main shaft. Moving the inner ring axially can expand the inner ring, so that the bearing clearance can be reduced or even the bearing can be pre-tensioned (negative clearance). status). Cylindrical bore bearings usually use hot-fitting, using interference fit to reduce bearing clearance, or pre-tensioning the bearing. For NNU49 series bearings with separable inner ring, the raceway is usually finished after the main shaft is mounted on the inner ring to improve the rotation accuracy of the main shaft.

You should know

1. Directly factory price, more than 30,0000 designs of bearings to reazile one-stop service.

2. NO MOQ, supporting sample purchase.

3. If you deal with us, you will enjoy less deposit, and hot promotion.

4. Less deposit is ok

Specifications

Cylindrical roller bearing bearing characteristics?

Cylindrical roller bearings are separate bearings, which are very convenient to install and disassemble. Cylindrical roller bearings are divided into single, double and four rows.
Cylindrical roller bearings can be divided into single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rolling elements used in sunthai bearings. Among them, the single-row cylindrical roller bearing with a cage is used more often. In addition, there are other structures such as single-row or double-row full complement cylindrical roller bearings.
Sunthai single-row cylindrical roller bearings are divided into N-type, NU-type, NJ-type, NF-type and NUP-type according to the different ring flanges. Cylindrical roller bearings have a large radial load capacity. Depending on the structure of the ring flange, it can also bear certain unidirectional or bidirectional axial loads.
NN and NNU type double row cylindrical roller bearings are compact in structure, strong in rigidity, large in load capacity, and small in deformation after loading. They are mostly used to support the spindle of machine tools. FC, FCD, FCDP four-row cylindrical roller bearings can withstand large radial loads, and are mostly used on heavy machinery such as rolling mills.
Sunthai cylindrical roller bearings are mainly used in motors, machine tools, petroleum, rolling mill handling machinery and various industrial machinery.

Products Show

Package and Shipment

Packing:

1: tube package+outer caton+pallets

2: single box+outer carrton+pallet

RFQ

1. Do you support less deposit?

Yes, we accept. Becaue quality is our culture. Never worry the balance payment.

2. How is your service?

Every step is going of the order, there will be one to inform you for each, to make sure you know the order in well.

HOW IS CHINA EAST TRADING CO.,LIMITED?

Our value message is (Quality Is Our Culture).

CHINA EAST TRADING CO.,LIMITED have been integrated manufacturer and exporting all kinds of bearings company.

Our domestic business since2005;A rich experience on exporting bearings team was built at 2009, to expand market all over the world. During this 10years, we made the market analysis included the needed of price, quality and all kinds of documents for each country on customs to realize one-stop service for our customer. To offer the highest advantage competitive service.

(2 factories +300workers+30,0000designs+small order+quick shipping). 90% of our production equipment is imported from Japan and Germany to offer our customers the best competitive advantage BEARING PRODUCTS.

OUR MANAGEMENT TEAM IS MULTINATIONAL NATIVE SPEAKERS MANAGEMENT TEAM. Our Brand is "MCBB" BRAND.

OUR MAIN PRODUCTS IS:

1. Pillow block ball bearings

2. Deep groove ball bearings

3. Taper roller bearings

4. Spherical roller bearings

5. Cylindrical roller bearings

6. Ball joint bearings

7. Needel roller bearings

8. Angular contact ball bearings

9. Thrust ball bearings

10. Self Aligning ball bearings

11. Clutch release bearings

12. Linear motion bearings

13. Cylindrical roller thrust bearings

We have the honor to serve many famous companies allover the world. WELCOME TO BE ONE OF OUR TOP" VIP" CUSTOMERS''. WE BELIEVE THAT" THE QUALITY IS THE SOUL OF AN ENTERPRISE" WELCOME TO CONTACT US." With us your MONEY in safe; Your BUSINESS in safe".

"CHINA EAST TRADING CO.,LIMITED DEVELOPMENT HISTORY" You should know,

1. 2005Year, CHINA EAST TRADING CO.,LIMITED started to build and begin the domenstic business for kinds of industry, machinery equipment for kinds of ball bearing and roller bearing. During 2005 to 2008years to accumulated a rich experience the bearings of application to well know the needing from the market and customer. It is good for us to avoid unnecessary mistake to enlarge reduce the work and cost for customers.

2. 2009years, CHINA EAST TRADING CO.,LIMITED started the international business. This year named Hope years, Our Market included USA, Saudia Ariable, Turkey, Russia, SirLanka, Romania, France, UK, Canada...We got how do choose the documents for customer, How do choose the shipment for customers. This years, our goal was only how to enlarge the market in fast.

3. 2010 to 2015years, we enlarged our business way. We created agent to all over the world. In order to fine a good business way  and to realize the fast shipment by the less cost in deal. 

4. 2016-2018years,CHINA EAST TRADING CO.,LIMITED goal was how to help customer win and keep the local market. To realize the final win-win suitation. To keep in good relationship with their market.

5. 2019 years, Basis on 2005year to 2018years, our MCBB BEARING goal was How to make the business got be easy, how to make the business in safe. 

To choose us, trusting you will know above how MCBB BEARING do offer the safe business for you. Welcome contact us for more.

6. 2020 New year, CHINA EAST TRADING CO.,LIMITED hope and wish, there will be a chance for us to meet and serve you. Even a small order, you will know how CHINA EAST TRADING CO.,LIMITED is. 

In the new 2020 year, we will continue to serve you with sincerity and honest for all of our old and new customers. To keep " QUALITY First" and Price is second. To help customer to keep and win in the market. If we can not be your NO.1, so we wanna be a special one for YOU.

Workshop- Raw material warehouse- Finished bearings warehours- Quality control- Weekly meeting

Group Training to improve the service for customers.