NJ309EM C3 cylindrical roller bearing

Cylindrical roller bearing NJ309EM/C3  

Cylindrical roller bearings, also known as rolling mill bearings, belong to separable bearings. It is easy for people to install and dismantle. They can be classified into single row, double row and four rows cylindrical roller bearings. 

The single row cylindrical roller bearings are the most widely used ones. And the single row cylindrical roller bearings can be divided into N series, NU series, NF series, NUP series and so on. Cylindrical roller bearings carry a very heavy radial load. 

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Application 

Product Specifications

N type:
The inner ring has two integral flanges and the outer ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself. The bearings are therefore used as non-locating bearings.
NU type:
The outer ring of bearings of the NU design has two integral flanges and the inner ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself.
NJ type:
The outer ring has two integral flanges and the inner ring one integral flange. The bearings are therefore suitable for the axial location of a shaft in one direction.

NF type:
The outer ring has one integral flange and the inner ring two integral flanges.
NUP type:
The outer ring has two integral flanges and the inner ring one integral flange and one non-integral flange in the form of a loose flange ring. The bearings can be used as locating bearings, i.e. they can provide axial location for a shaft in both directions.
RN type:
No outer ring and the inner ring two integral flanges.
NN type:
NN type bearing without ribs on outer ring,there is a wall in the midel of between both sides of inner ring. It can make shaft relative bearing between the axial displacement generated in both directions.

Quality Inspection & Equipments

Rich Stocks

1. Customer service
Any questions to be sent will get response within 24 hours.

2. Lead time
For products in stock, we will deliver the goods within 3-5 days; for products which need to order, it generally takes 15-30 days, it depends on quantity.
Anyway, we will deliver the products as soon as possible after getting your deposit.

3. After-sales service
Before shipment, products will be strictly inspected in our factory with our own inspection system. Please contact us at first time, just in case. Customer complaint handling procedure will be started at once. We will negotiate with customers to find a reasonable way to resolve and compensate.

D.Delivery products from our factory warehouse, delivery time is short.

Q:What causes bearing noise?

Bearing noise is a function of both the bearing and the way it is used. Some external factors that affect bearing noise include lubricant type, excessive bearing load, and improper installation. Once the abnormal noise occurred, you can contact our engineers, we will help you find the reasons and provide the appropriate solutions.

Q:Are you a factory or trading company?
We have our own factory and warehouse.
We are specialized in manufacturing and exporting bearings.

Q:How long is the delivery time?

Generally it is 3-5 days if the goods are in stock, or it is 15-30 days if the goods are not in stock, it is according to quantity.

Q:Do you like to serve clients with small orders only?
We would to serve clients with all kinds of orders, big or small.
I believe that you will be larger clients for us.