Single Row Angular Contact Ball Bearings

High Quality Single Row Angular Contact Ball Bearings 7021 7021B 7021C 105*160*26Mm

High Quality Single Row Angular Contact Ball Bearings 7021 7021B 7021C 105*160*26Mm
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Product Details

High Quality Single Row Angular Contact Ball Bearings 7021 7021B 7021C 105*160*26mm

High Quality Single Row Angular Contact Ball Bearings 7021 7021B 7021C 105*160*26mm for Forging Machine Tool

Material

Chrome Steel

Model

7021

Brand

JRDB

Vibration level

V1, V2, V3

Clearance

C2,C3,C4

Certificate

ISO9001:2000

Size

105*160*26mm

Application

Forging machine tool

Services

OEM customized services

Precision Rating

P0, P6,P5,P4 P2

Packaging Details

1. Industrial packaging: plastic bag/plastic tube + kraft paper + carton + plywood pallets

2. 2. Commercial packing: 1pc/plastic bag + color box + carton + plywood pallets

3. 3. As the clients' requirement

Delivery Detail

Shipped in 2 days after payment

Payment Terms

L/C,T/T,Western Union,MoneyGram,Paypal


7021 bearing.jpg

Angular contact ball bearing 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 outer race. 

Angular contact bearings better support "combined loads" (loading in both the radial and axial directions) and the contact 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. In high speed applications, such as turbines, jet engines, and dentistry equipment, the centrifugal forces generated by the balls changes the contact angle at the inner and outer race. Ceramics such assilicon nitride are now regularly used in such applications due to their low density (40% of steel). These materials significantly reduce centrifugal force and function well in high temperature environments. They also tend to wear in a similar way to bearing steel—rather than cracking or shattering like glass or porcelain.

Most bicycles use angular-contact bearings in the headsets because the forces on these bearings are in both the radial and axial direction.

Angular contact ball bearing type:

Single row angular contact ball bearing: only carry a direction of the axial load, when in bear radial load, can cause additional axial force must be applied to the corresponding reverse load, therefore, the bearings are generally used in pairs.

Double row angular contact ball bearing: At the same time can bear radial and axial load joint load, limit shaft on both sides of the axial displacement.

Angular contact ball bearing main technical indicators: 

(1) Bearing precision index: More than GB / 307.1-94 P4 level accuracy 

(2) High-speed performance index: 1.3~1.8x 106 /min 

(3)Service life:more than 1500h

Feature: 

1) Load capacities are higher than deep groove ball bearings of same dimensions 

2) Used for bearing radial-axial combined loads or pure thrust loads

3) Low operating friction and high limiting speed 

Type: 

1). Single row angular contact ball bearings 

2). Double row angular contact ball bearings 

3). Four-point contact ball bearings 

Mounting 

/DB: Mount in duplex, back to back 

/DF: Mount in duplex, face to face 

/DT: Mount in duplex, tandem 

Tolerance & Precision.

Accuracy from low to high is expressed as P0 ( general ), P6 (P6X), P5, P4, P2



The main application: 

Single row angular contact ball bearings: 

machine tool spindles, high frequency motors, gas turbines , centrifuges, small car front wheel , differential pinion shaft , booster pumps, drilling platforms, food machinery, dividing head, fill welding , low-noise cooling tower , electrical and mechanical equipment, painting equipment , machine slot board , arc welding machine

Double row angular contact ball bearings: 

pump, blower , air compressor , various types of transmission , fuel injection pump , printing machinery , planetary reducer, extraction equipment , cycloid reducer , food packaging machinery , welding machines, electric irons, square box , gravity gun , wire strippers , axle, test analysis equipment , chemical machinery.


Bearing NO.Size15º25ºCage material
Limiting SpeedLimiting Speed
IDODBLoading ratingGrease & OilLoading ratingGrease & Oil
Cr   CorGrease   OilCr   CorGrease   Oil
70031735106.7   4.944000   660006.4   4.739000  59000phenolic
70042042129.6   6.337000   550009.2   6.033000   49000phenolic
700525471212.9   8.733000   4900012.3   8.329000   44000phenolic
700630551315.7   11.627000   4200014.9   10.923000   37000phenolic
700735621419.3   17.519000   3300010.4   10.319000   33000phenolic
700840681519.9   19.118000   3100018.9   18.216000   27000phenolic
700945751626.7   25.316000   2700025.4   24.115000   25000phenolic
701050801627.6   27.515000   2500026.2   26.214000   23000phenolic
701155901836.7   37.113000   2100034.8   35.312000   19000phenolic
701260951837.8     4013000   2100035.8   3811000   18000phenolic
7013651001838.9   42.912000   1900036.8   40.710000   17000phenolic
7014701102049.9   55.511000   1800047.2   52.79000     16000phenolic
7015751152051.3   59.210000   1700048.5   56.28500     15000phenolic
7016801252261.6   70.49000   1600058.3   66.98000     14000phenolic
7017851302263.6     758500   1500059.9   71.37500     13000phenolic
7018901402466.9     848000   1400063.2   79.77000     12000phenolic
7019951452479.1   97.67500   1300074.8   92.76500     11000phenolic
70201001502481.2   103.37000   1200076.7   9.86000     10000phenolic
70211051602693.9   118.26500   1100088.8   112.26000     10000phenolic
702211017028110.4   139.86000   10000104.4   132.85700     9000phenolic
702412018028112.7   148.76000   10000106.3   141.15700     9000phenolic
702613020033144.8   190.85700     9000136.8   181.05000     8000phenolic
702814021033148.7   202.65000     8000140.4   192.24600     7500phenolic


If you are interested in our products, you can click on the "send my inquiry" to us for help, we will provide help for you in 1 hour.

Company profile

Jinan JiaRuiDa Mechanical&Electrical Equipment Co., Ltd.

Jinan JiaRuiDa Mechanical&Electrical Equipment Co., Ltd. teamed up with strong bearing production enterprises, can produce deep groove ball bearings, self-aligning ball bearings, angular contact ball bearings, cylindrical roller bearing, tapered roller bearing, spherical roller bearing, needle bearing, insert ball bearing unit, and other type bearing with different levels of precision products.

     

     Our products are widely used in metallurgy, mining, chemical industry, petroleum, machinery and other industries, with the domestic each big enterprise cooperation for many times, in the international market, products have been sold to the United States, Germany, Austria, Brazil, Russia, Ukraine, South Korea, India, and other countries and southeast Asia, the Middle East.

   

      Our company through the ISO14001:2004 international quality management system certification, ISO9001:2000 international quality management system certification, complete testing means for the production of quality products provides a reliable guarantee.Measurement center, testing center and laboratory are adopted at home and abroad the most advanced testing instruments, meters and bearing test device, ensure the accuracy of all tests, complete processing equipment provides a strong guarantee for improving production ability.Forging mainly used grinding ring, machining is given priority to with numerical control lathe automatic or semi-automatic, heat treatment used the well type annealing furnace, pit type carburizing furnace, push rod annealed wire and a protective gas quenching line at home and abroad advanced equipment, guarantees the quality of bearing.

For more information of other products, pls click"www.okbearing.com"


Our advantages

Our sales process

Our related services

We accept OEM

Why choose cooperation with us?

Our advantages

1,Excellent and high quality control 

2,Customers' drawing or samples accepted 
3
,Competitive price 
4
,Prompt delivery 
5
,Small order accepted 
6
,OEM service

7,we accept a variety of payment
8,our service time is 7 * 24
9, we are specializing in the production of bearing more than 10 years


Packaging & Shipping

FAQ

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 30% T/T in advance ,balance before shippment.


Q:Can you give me discount?

A:Yes,of course.And we will quote you lowest price at the beginning.

Q:What should I do if the bearings has something wrong?

A:oh!We will try our best to help you and set up long time cooperation.

Working time,working environment,usage way will influence the life of bearings.

Q:Do you like to serve clients with small orders only?

A:We would like to serve clients with all kinds of orders,big or small.

I believe that you will be larger clients for us.


Contact US                                                                                          


Vincent

Skype:chossyzhao
Fax:86-531-87953958
Whatsapp:+8615610444148
Telephone:86-531-87188661
Address:#206 Lu fu business center, jing si road and wei shi er road crossing, Huai yin distric, Jinan city, Shandong province.




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