Home » Products »

7309B Angular Contact Ball Bearing

Delivery term:The date of payment from buyers deliver within days
  • Price:


  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:


  • Validity to:

    Long-term effective

  • Last update:

    2017-10-07 08:26

  • Browse the number:


Send an inquiries
Company Profile
Jiang Xin Technology (Dongguan) Co.,Ltd








No.7 Shangfang Huanxi One Road, Zhouxi, Nancheng, Dongguan City, Guangdong Province, China.


http://www.jxtcbearing.com/ http://www.kekehandmade.com/com/jiangxin/

Product details

7309B Angular Contact Ball Bearing which were used  for machine tool spindle, gas turbine, centrifugal separator, high-frequency motor, paper making machinery, wind turbines, front wheel of small car, machine tools, gear boxes, electric motors, fuel Injection Pump  

Brief Introduction:

Working Principle:

It uses axially asymmetric races. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that on the Tycontact angle of the bearing should be matched to the relative proportions of each. The larger the contact angle (typically in the range 10 to 45 degrees), the higher the axial load supported, but the lower the radial load.


Angular contact ball bearings are produced in a wide variety of designs and sizes. Those commonly used and included in this catalogue are:

1.Single-row angular contact ball bearings

Axial load in single direction can be sustained. While supporting pure radial load, the bearings must be installed and used in pairs since the line of action of the rolling element load is not in the same plane as that of the radial one, resulting in inner separate force.

2.Double-row angular contact ball bearings

This is basically a back-to-back mounting of two single-row angular contact ball bearings, but their inner and outer rings are each integrated into one. Axial loads in both directions can be sustained, and the capacity to sustain moments is good. This type is used as fixed-end bearings. Their cages are pressed steel.

3.Four-point angular contact ball bearings

The inner ring is split radially into two pieces. Their design allows one bearing to sustain significant axial loads in either direction. The contact angle is 35°, so the axial load capacity is high. This type is suitable for carrying pure axial loads or combined loads where the axial loads are high. The cages are made of machined brass.

Typical Applications:

They are mainly which were used for machine tool spindle, gas turbine, centrifugal separator, high-frequency motor, paper making machinery, wind turbines, front wheel of small car, machine tools, gear boxes, electric motors, pumps& compressors, injection molding machines, differential gear, painting equipment, arc welding machine


1.Load capacities are higher than deep groove ball bearing of same dimensions.
2.Used for bearing radial-axial combined loads or pure thrust loads.
3.Low operating friction and high limiting speed.


1.Low friction, almost noiseless and high rolling speed 
2.Easy to install 
3.Simple structure ensures fast equipment
4.Optimised internal design
5.High load ratings 
6.Increased limiting speed
7.High strength ball guided brass cage 
8.High dimensional and running accuracy
9.Narrow axial clearances or preloads range
10.Universal facing in standard 


Data Sheet:


Products Show:



Production Department:

Customer Service:

1. There is no replacement for courteous and efficient customer service. JXTC knows this, and provides experienced and well-trained personnel to assure a quick and reliable response for every customer.


2. From the initial greeting, through shipping and tracking orders, our customers can be sure if our attention to even the smallest details. You will get the right product to the right specs, shipped on-time, and at the agreed upon price.


3. Our staff is friendly, courteous, and above all, responsive. Your questions and quotes will be answered promptly, your transaction will be implemented efficiently, and your product will be shipped on time.


4. It is the policy of JXTC Bearings to provide product knowledge, application and engineering expertise, quality control, consistent and courteous customer service, and cost-efficient, high-quality products.



C: Do you like accept small order bearing?

J: we enjoy to grow up together with all our clients, whatever big or small, you will become bigger and bigger to be with us.

C: How long is your delivery time?

J: It is according to quantity. Generally it is 1-3 days if the goods are in stock. or it is 15-20 days if the goods are not in stock,

C: What causes bearing noise?

J: 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.

C:Can I get some samples and do you offer the sample free?

J:sure, we are happy to send you samples.If we have stock, we can send you free sample.

And you just need to pay freight. If there have no stock, you need to pay sample fee and freight


Contact us:

(Dongguan)Jiang Xin Technology Co.,LTD
Office: No.7 Shangfang Huanxi One Road, Zhouxi, Nancheng, Dongguan City, Guangdong Province, China.
Contact Person: Peggy Li 
E-Mail: peggy@jxtcbearing.com / /info@jxtcbearing.com
Mobile/ Whatsapp/ Wechat: 0086-13559751737
Tel: 0086-769-89878157
Fax: 0086-769-22280149