China Supply Pet/PP/PE/PS Filling Compounding Blending Sheet Extruder

High Quality Pet Double Screw Plastic Sheet Extrusion Line

1. Applications -->>recyclling plastic sheet line 

Applicable plastic materials:PET,PP,PS,etc.

Material shapes: Pet granules, Plastic bottle flakes, Plastic scrap

 

Note:Depending on material property, various downstream equipment are available

2. Characteristics -->>recycle plastic sheet line 

This recycle plastic sheet line is composed of

motor, gear box,automatic feeding machine, double screw extruder, melt pump,screen changer, pull off,sheet winder etc.

1.The output reaches a remarkable level of  1500kg/ hr

2. Unique screw ensures the maxmum exhaust efficiency

3. Multi cacuum chambers avoid the predrying process, leading to 40% less energy consumption

4.Working stably under the absolute vacuum of 100 pa

5.The loss of viscosity is less than 0.03

3.Technical Parameter-->>  double stage extrusion line 

4.Product photos

Nanjing Gorray Extrusion Equipment LLC

Nanjing Gorray Extrusion Equipment LLC

Nanjing Gorray Extrusion Equipment LLC

5. Packaging and shipping

6.Our qualified partners

7. Our Services

Free technical and after-sale service

1. technical service          
According to the user's processing materials and process changes, providing the corresponding screw assembly diagram and the required technical consultation.

2. after-sale service           
Free on-site equipment installation and commissioning 

Provide free technical training operation and daily maintenance training for users.                                 

Free maintenance of equipment for one year(Excepting the quick-wear part and improper operation of the user)
8.  Our team

 

High Quality Pet Double Screw Plastic Sheet Extrusion Line

1. Applications -->>recyclling plastic sheet line 

Applicable plastic materials:PET,PP,PS,etc.

Material shapes: Pet granules, Plastic bottle flakes, Plastic scrap

 

Note:Depending on material property, various downstream equipment are available

2. Characteristics -->>recycle plastic sheet line 

This recycle plastic sheet line is composed of

motor, gear box,automatic feeding machine, double screw extruder, melt pump,screen changer, pull off,sheet winder etc.

1.The output reaches a remarkable level of  1500kg/ hr

2. Unique screw ensures the maxmum exhaust efficiency

3. Multi cacuum chambers avoid the predrying process, leading to 40% less energy consumption

4.Working stably under the absolute vacuum of 100 pa

5.The loss of viscosity is less than 0.03

3.Technical Parameter-->>  double stage extrusion line 

4.Product photos

Nanjing Gorray Extrusion Equipment LLC

Nanjing Gorray Extrusion Equipment LLC

Nanjing Gorray Extrusion Equipment LLC

5. Packaging and shipping

6.Our qualified partners

7. Our Services

Free technical and after-sale service

1. technical service          
According to the user's processing materials and process changes, providing the corresponding screw assembly diagram and the required technical consultation.

2. after-sale service           
Free on-site equipment installation and commissioning 

Provide free technical training operation and daily maintenance training for users.                                 

Free maintenance of equipment for one year(Excepting the quick-wear part and improper operation of the user)
8.  Our team

 

Angular contact Ball Bearings

 

Angular Contact Ball Bearing has high limit rotational speed, they can carry radial load and axial load simultaneously, they can also withstand purely radial load. The axial load carrying capacity depends on the magnitude of contact angle and increases with increasing contact angle.

Structures

1. Non-separable angular contact ball bearings

This inner ring and outer ring of this type of bearings cannot be separated and comprises following structures:

Contact angle α=15°      counter bore on outer ring,7000Ctype

Contact angle α=25°      counter bore on outer ring,7000ACtype

Contact angle α=40°      counter bore on outer ring, 7000B type

2. Four-point contact ball bearings

This type of bearings is separable bearings. Whereof, QJ0000 type has two-piece inner ring and QJF0000 type has two-piece outer ring. Their contact angles are same as 35°.When received no load or pure radial load, the steel balls of the Ball Bearing contact with the four points of the rings. When it is received a pure axial load, the steel balls perform a two-point contact with the ring. In addition, besides the axial load from both directions, this kind of bearing can take torque-load as well.

3. Double row angular contact ball bearings

This kind of bearings can accommodate radial loads as well as axial loads acting in both directions; they can also take loading moment. They can restrain the axial displacement from both directions of the shaft or housing; the contact angle is 30° (or 40°)

Permissible tilt angle

There is only a little inclination between the inner ring and outer ring of angular contact bearings, the permissible tilt angle varies according to the internal clearance when the bearings are operating, the bearing dimensions, internal design, force and loading moment received by the bearings. The value of the maximum permissible tilt angle should be able to ensure that no much extra stress to be generated inside the bearings.

The tilt angle existing between the inner ring and outer ring will influence the bearing service life. Meanwhile, the running accuracy is decreased down and noise increased.

Tolerance and clearance

The tolerances of general angular contact bearings are class normal P0, class P5 and P6. Class P4 and P2 are applicable to machine tool spindles and bearing amount in pairs.

Clearance of single row angular contact bearing is decided by the contact angle, which is guaranteed by manufacturing.

Axial clearance of Four-point contact ball bearings is listed in table 1.

Cage material

Generally, the cage of angular contact bearing is pressed cage of steel sheet or brass cage, and it is solid brass cage for two row angular contact bearing.

Dynamic equivalent radial load

Single-row angular contact ball bearings with a contact angle of 15°

Single bearing or bearing in pairs(7000 C.7000 C/DT)

F_a/F_r≤e         P_r=F_r 

F_a/F_r>e          P_r=0.44F_r+YF_a

Back-to-back and face to face arrangements(7000 C/DB.7000 C/DF)

F_a/F_r≤e         P_r=F_r+Y₁F_a       

F_a/F_r>e          P_r=0.72F_r+Y₂F_a    

Single-row angler contact ball bearings with a contact angle of 25°

Single bearing or bearing in pairs(7000 AC.7000 AC/DT)

F_a/F_r≤0.68      P_r=F_r             

F_a/F_r>0.68       P_r=0.41F_r+0.87F_a   

Back-to-back and face to face arrangements(7000 AC/DB.7000 AC/DF)

F_a/F_r≤0.68      P_r=F_r+0.92F_a       

F_a/F_r>0.68       P_r=0.67F_r+1.41F_a    

Single-row angular contact ball bearings with a contact angle of 40°

Single bearing or bearing in pairs (7000 B.7000 B/DT)

F_a/F_r≤1.14      P_r=F_r             

F_a/F_r>1.14       P_r=0.35F_r+0.57F_a   

Back-to-back and face to face arrangements(7000 B/DB.7000 B/DF)

F_a/F_r≤1.14      P_r=F_r+0.55F_a      

F_a/F_r>1.14       P_r=0.57F_r+0.93F_a   

Four point contact ball bearings with a contact angle of 35°

F_a/F_r≤0.95      P_r=F_r+0.66F_a      

F_a/F_r>0.95       P_r=0.6F_r+1.07F_a    

Double-row angular contact ball bearings with a contact angle of 45°

F_a/F_r≤1.34      P_r=F_r+0.47F_a      

F_a/F_r>1.34       P_r=0.54F_r+0.81F_a   

Static equivalent radial load

Single-row angular contact ball bearings with a contact angle of 15°

For single bearing or bearing in pairs(7000 C.7000 C/DT)

 

P_0r=0.5F_r+0.46F_a   

P_0r<F_r  P_0r=F_r

For back-to-back and face-to-face arrangements (7000 C/DB.7000 C/DF)

P_0r=F_r+0.92F_a

Single-row angular contact ball bearings with contact angle of 25°

For single bearing or bearing in pairs (7000 AC.7000 AC/DT)

P_0r=0.5F_r+0.38F_a  

when P_0r<F_r  let P_0r=F_r

For two bearings in back-to-back and face-to-face arrangements

P_0r=F_r+0.76F_a

Single-row angular contact ball bearings with contact angle of 40°

For single bearing or bearing in pairs

P_0r=0.5F_r+0.26F_a   

when P_0r<F_r  let P_0r=F_r

For two bearings in back-to-back and face-to-face arrangements

P_0r=F_r+0.52F_a

Four point contact ball bearings

P_0r=F_r+0.58F_a

Double-row angular contact ball bearings with contact angle of 45°

P_0r=F_r+0.44F_a

F_r  Actual radial load of the bearing.

F_a   Axial load of the bearing

The values of e .Y .Y₁ .Y₂  see Table 2.

Table 1   Axial internal clearance of four point contact ball bearings

                                        μm

Nominal bore diameter  d mm		C2 clearance		Standard clearance		C3 clearance		C4 clearance
Over	To	Min	Max	Min	Max	Over	To	Min	Max
10 18 40   60 80 100   140 180 220   260	18 40 60   80 100 140   180 200 260   300	15 26 36   46 56 66   76 96 115   135	55 66 86   96 116 136   156 176 195   215	45 56 76   86 96 116   136 156 175   195	85 106 126   136 156 176   196 216 235   275	75 96 116   126 135 156   176 196 215   255	115 146 166   176 196 216   236 256 295   335	105 136 156   166 176 196   216 236 275   295	145 186 206   216 236 256   276 296 335   355

 

Table 2   Calculate Coefficient

                           Î¼m

	e	Y	Y1	Y2
0.172 0.345 0.689 1.03 1.38 2.07 3.45 5.17 6.89	0.38 0.4 0.43 0.46 0.47 0.5 0.55 0.56 0.56	1.47 1.4 1.3 1.23 1.19 1.12 1.02 1 1	1.65 1.57 1.46 1.38 1.34 1.26 1.14 1.12 1.12	2.39 2.28 2.11 2 1.93 1.82 1.66 1.63 1.63

Dw is the diameter of the rolling element

Angular Contact Ball Bearing

Machined Cage Angular Contact Ball Bearing,Pressed Cage Angular Contact Ball Bearing,One Row Angular Contact Ball Bearing,Two Row Angular Contact Ball Bearing

Xibei Bearing Co.,Ltd. , https://www.nxzjck.com