Technology

Part list of Handsome II air compressor

When ordering parts, specify the machine type , part name, part numbers to our authorized distributor. Use Kobelco genuine parts when replacing worn parts or repairing. Using non-genuine parts does not guarantee  proper funtions and may result in a failure.

Maintenance of Handsome II air compressor

Compressed air system in factory plays an important role. In order to ensure the stable operation during the manufacturing process, the regulary maintenance is nescessary . However, there are many different problems in fact such as: Air compressors, dusty air dryers, high engine room temperatures, unsecured wind convection ... lead to reduce using time of compressor accessories (air filter, oil filter, oil separator ...). On the other hand, the recommended maintenance in some factories is not seriously followed and there are deviations.
Working safely with compressed air  tank

Working safely with compressed air tank

Safely using of compressed air tank is a very important issue, compressed air tank before being used must be tested by KTAT, registered for use following regulations. Users must hand over the managing responsibility the compressed air tank to the equipment manager in writing. Operating of thetanks is only given to people from 18 years old or older, who are physically fit and well-trained. They must be assigned by the employer in writing.
Hitachi air compressor maintenance

Hitachi air compressor maintenance

Minh Phu Machinery and Technical Services Co., Ltd specializes in repair, maintenance and supply of parts for Hitachi air compressors with high quality, reliability and long-term warranty. Please call Minh Phu 0919232826 for more details. Belows are some pictures of repair and maintenance Hitachi air compressors.

Thermostats for air compressor

Thermostat for air compressor has function of regulating the flow of oil onto the compressor cooler to ensure that the oil temperature and air end are always stable in the allowable temperature.

How to read bearing parameters

Wednesday - 02/01/2019 04:02

When using the bearing, we see the parrameter. The information on the bearing is a range of letters and number which shows information of; type of bearing, dimensions, accuracy, and other parameters  etc. So, How to understand the parameters correctly, this articale may be useful: 

vong bi 2,bearing parameters
Bearing

1.According to  TCVN 3776-83 the bearing parameter will be understood as following: 

- Ball bearing is abbriviated by numbers. Two last numbers show the inner diameter from 20 to 495 mm, these number is as 1/5  as the real dimensions. The number has inner diameter from 10 to 20 mm signed 00 (10mm), 01 (12mm), 02 (15mm), 03 (15mm), 03 (17mm).
For example: The number 150212 on the bearing mean: 1 range bearing  (0), outer ring (5), light load (2), width (1), inner diameter 60 mm (12×5).
- Other examples:
thong so vong bi,bearing parameters
bearing parameters

 

vong bi skf 7, bearing parameters
bearing parameters

2. Meaning of load :

- The third number from right to left. 

1 or 7

Very light load 

2

 Light load only

3

Medium load only 

4

Heavy load only

5

Very heavy load only

6

Medium load same as 3 but it's thicker 

8-9

Really load only; 814, 820, 914

 3. Meaning of classification:

 The 4th number from right to left indecates the bearing 0-9.    

0

The 1 layer ball bearing 

1

The 2 layer ball bearing 

2

1 layer short cylindrical roller  bearing 

3

2 layer short cylindrical roller  bearing 

4

1 layer long cylindrical rollerbearing 

5

Twisted cylindrical bearing 

6

Thrust ball bearing 

7

Tapered roller bearing 

8

Not radial thrust ball bearing

9

Cylindrical roller thrust bearings

4. Structural meaning :

 The number from right to left.  

3

1 row  cylindrical roller thrust bearing, burrless inner thrust ring without 

4

The same as 3  with barrier ring

5

1 groove baking in the outter ring 

6

1 basket stoping oil made of steel sheet

9

 1 row short thrust  cylindrical roller bearing, there is a ring thrusting the ballroller. 

 
For example:
  Read the 60304 bearing paramaters.
-          ID 04x5 = 20mm
-          Load: Medium

-          1 layer ball bearing 
-          1 basket stoping oil made of steel sheet
Note : If there is 3 last number , the last number is ID (D<20mm).
        Ex : 678 , d=8mm, light load, thrust ball bearing 

5. Bearing gap:

Centre shaft dimension 

New spherical ball bearing 

New clindrical ball bearing 

Usable ball bearing 

20-30

0.01-0.02

0.03-0.05

0.1

30-50

0.01-0.02

0.05-0.07

0.2

55-80

0.01-0.02

0.06-0.08

0.2

85-120

0.02-0.03

0.08-0.1

0.3

130-150

0.02-0.03

0.10-0.12

0.3

6. Silver gap  :

Diameter of center shaft

Gap between shaft and silver bearing 

     
       

>1000 v/p

 

Standard

Allowance 

Standard

Allowance 

18-30

0.040-0.093

0.1

0.06-0.118

0.12

30-50

0.05-0.112

0.12

0.075-0.142

0.15

50-80

0.065-0.135

0.14

0.095-0.175

0.18

80-120

0.08-0.16

0.16

0.12-0.210

0.22

120-180

0.100-0.195

0.20

0.150-0.250

0.30

180-260

0.120-0.225

0.24

0.180-0.295

0.40

260-360

0.140-0.250

0.26

0.210-0.340

0.5

360-500

0.170-0.305

0.32

0.250-0.400

0.6

                                                                                                                                  Source: Internet


Minh Phu provides maintenance and repair services for air compressors, in addition Minh Phu also provides spare parts for air compressors with high quality at reasonable prices. For further information, please contact (+84)919 23 28 26. Sincerely thank you for your interest and your trust of our service. How to read bearing parametersi, air compressor bearings , bearing paremeters, bearing replecement of air compressor

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