Storage Batteries & Secondary Batteries

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Z1 Z2 Double Row Self Aligning Ball Bearing For Machine Tools

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Self-aligning?Ball Bearing

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The self-aligning ball bearing has two rows of balls and a common concave sphered raceway in the outer ring. The bearing is consequently self-aligning and insensitive to angular misalignments of the shaft relative to the housing. It is particularly suitable for applications where considerable shaft deflections or misalignment are to be expected. Additionally, the self-aligning ball bearing has the lowest friction of all rolling bearings, which enables it to run cooler even at high speeds.

We produces self-aligning ball bearings to several designs. These are

– open bearings of the basic design

– sealed bearings

– open bearings with an extended inner ring

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This type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex. The outer ring has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. Pressed steel cages are usually used. Since the contact angle is small, the axial load capacity is low. The permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees) under normal loads



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Bearing Numbers | ?Boundary Dimension?
?(mm) | Basic Load Ratings(KN) | Limited Speed(rpm) | Mass?
(KG) |
d | D | B | rmin | Cr | Cor | Grease | Oil | Approx |
2315 | 75 | 160 | 55 | 2.10 | 4.770 | 110.70 | 41.28 | 2900 | 3400 |
2315 K | 75 | 160 | 55 | 2.10 | 4.770 | 110.70 | 41.28 | 2900 | 3400 |
2316 | 80 | 170 | 58 | 2.10 | 5.540 | 115.20 | 43.20 | 2800 | 3200 |
2316 K | 80 | 170 | 58 | 2.10 | 5.540 | 115.20 | 43.20 | 2800 | 3200 |
2317 | 85 | 180 | 60 | 3.00 | 6.560 | 126.00 | 49.44 | 2600 | 3000 |
2317 K | 85 | 180 | 60 | 3.00 | 6.560 | 126.00 | 49.44 | 2600 | 3000 |
2318 | 90 | 190 | 64 | 3.00 | 7.76 | 136.80 | 55.20 | 2500 | 2900 |
2318 K | 90 | 190 | 64 | 3.00 | 7.76 | 136.80 | 55.20 | 2500 | 2900 |
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Product information

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Brand: | ?SKF |
Quality Standard: | ISO9001:2008 quality management system |
Features: | 1)Precision: ABEC-1(P0), ABEC-3(P6), ABEC-5(P5), ABEC-7(P4)? |
2)Noise level: Z1, Z2, Z3, Z4 |
3)Vibration Level: V1, V2, V3, V4??? |
4)Clearance: C2, C3, C4, C5??????????? |
5)Hardness: 59-63 HRC????????????? |
Greese: | As your requirement, such as SRL, PS2, Alvania R12 and so on. |
Technology & QC Process: | 1. Assembly |
2. Windage test |
3. Cleaning??? |
4. Rotary Test |
5. Greasing and gland |
6. Noise Inspection??? |
7. Appearance Inspection |
8. Rust Prevention |
9. Product Packaging? |
Application: | Auto, tractor, machine tool, electric machine, water pump, agricultural machinery and texile machinery ect. |
Service: | We will follow up on our customers& acute; feedback and suggestions after every delivery and we make every effort to solve their problems in order to ensure their total satisfaction. |
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???? B.G(Tianjin )Bearing Co,.Ltd is a professional manufacturer and supplier of all kinds of bearings from China.? Located in the north economic centre of Binhai New Area around Bohai China,Tianjin Chen Yang Jiu-Hong Bearing Co,.Ltd is one of the professional import and export company authorized by the Foreign Economic and Trade Commission in Tianjin,China.The main brands in our agency are:globale famous brands such as SKF from Sweden, FAG,INA from Germany, TINKEN from USA, NSK,NTN,KOYO,IKO,NACHI from Japan,and some well known Chinses local brands such as ZWZ from Wafangdian,HRB form Haerbin,and LYC from Luoyang,etc.All the products are supplied directly from Hongkang,Japan,and Germany,and so on. The types of? products include deep groove ball bearing,self-aligning ball bearing, cylindrical roller bearing,self-aligning roller bearing,angular contact ball bearing,taper roller bearing,thrust ball bearing ,thrust self-aligning roller bearing, needle roller bearing,spherical bearing and linear bearing etc,which are widely applied to all kinds of industry including machinery, metallurgy, Textiles,power,mine, chemical , electron, Paper Printing, petroleum, automobile, machine tool, medicine, Cement,coal and so on.The products are sold into all parts of china and more 20 countries in the world,and we win the content and praise from customers home and abroad by our Strict quality, professional Reputation,and Sincere service in the past 10 years.

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