Product Description

NKI Radial Needle Roller Bearing NKI 35/30 Needle Bearing with inner ring

Description of NKI Radial Needle Roller Bearing NKI 35/30 Needle Bearing with inner ring

Series Inner ring Description
With Without
NK   Yes Light series
NKS   Yes Heavy series
RNA 49   Yes Sizes same as 49 series
RNA 69   Yes Sizes same as 69 series, double row(single row to RNA6906)
RNA 48   Yes Sizes same as 48 series
NKI Yes   Light series
NKIS Yes   Heavy series
NA 49 Yes   Sizes same as 49 series
NA 69 Yes   Sizes same as 69 series, double row(single row to RNA6906)
NA 48 Yes   Sizes same as 48 series

Catalogue of NKI Radial Needle Roller Bearing NKI 35/30 Needle Bearing with inner ring

Shaft 

Diameter

Bearing Designation

Mass 

Approx

Borndary 

Dimensions

Basic Load Rating

Limiting 

Speed

Cr Cor
d F D B Dynamic Static Oil
mm Series g mm N rpm
NKI NKIS NA49 NA69
8 NKIS8 46 8 14 25 16 12400 11300 21500
9 NKI9/12 14.6 9 12 19 12 6200 7002 21700
10 NKI10/16 27.3 10 14 22 16 9808 10500 19650
NA4900 21 10 14 22 13 8006 9000 23700
NA6900 38.4 10 14 22 22 8281 11612 23700
12 NA4901 25.1 12 16 24 13 5047 6352 20000
NKI12/20 39 12 16 24 20 14000 18400 21000
NA6901 44.5 12 16 24 22 11647 17052 19100
NKIS12 58 12 18 30 16 16000 17000 19100
15 NKI15/16 38 15 19 27 16 8847 12853 18800
NKI15/20 45.7 15 19 27 20 12347 19053 18800
NA4902 32 15 20 28 13 6447 9053 17000
NA6902 61.6 15 20 28 23 13100 20900 20000
NKIS15 90 15 22 35 20 23500 24000 17000
17 NKI17/16 41.4 17 21 29 16 13000 18200 17000
NA4903 32.8 17 22 30 13 7571 1571 16700
NA6903 68.2 17 22 30 23 14400 24900 16200
20 NKI20/16 48.5 20 24 32 16 10800 17000 14000
NA4904 70.2 20 25 37 17 11912 16594 16200
NKIS20 119 20 28 42 20 26500 35500 14000
22 NKI22/16 50 22 25 34 16 8721 15340 16200
NA49/22 76 22 28 39 17 12996 19175 14360
NA69/22 130 22 28 39 30 21375 35750 14360
25 NKI25/30 115 25 29 38 30 31500 56000 14000
NA4905 76 25 30 42 17 13452 2571 13832
NA6905 138 25 30 42 30 19300 31750 13832
NKIS25 160 25 32 47 22 32000 55000 12500
28 NA49/28 90.7 28 32 45 17 13900 25710 13832
NA69/28 170 28 32 45 30 22400 36850 13832
32 NKI32/20 101 32 35 45 20 13851 26900 12382
NA49/32 150 32 40 52 20 19000 32600 11134
NA69/32 272 32 40 52 36 25500 68500 11134
35 NKI35/30 165 35 40 50 30 22200 51350 11134
NA4907 151 35 42 55 20 19800 41500 11134
NA6907 301 35 42 55 36 26000 60500 11134
NKIS35 210 35 43 58 22 33000 56000 9500
40 NKI40/20 124 40 45 55 20 22000 48000 10127
NKI40/30 184 40 45 55 30 35000 86000 10127
NA4908 123 40 48 62 22 31036 63873 8567
NA6908 401 40 48 62 40 64000 112000 8567
42 NKI42/20 138 42 47 57 20 26000 52500 9500
45 NKI45/25 218 45 50 62 25 36000 70000 8567
NKI45/35 289 45 50 62 35 41500 157100 8567
NA4909 260 45 50 68 22 37000 69500 8052
NA6909 479 45 50 68 40 61500 123500 8052
NKIS45 306 45 55 72 22 43000 71000 7500
50 NKI50/25 262 50 55 68 25 32000 78000 7890
NA4910 264 50 58 72 22 41000 72000 7526
NA6910 457 50 58 72 40 68000 135000 7526
NKIS50 510 50 60 80 28 60000 95000 7200
55 NKI55/35 357 55 60 72 35 48000 126800 7256
NA4911 386 55 63 80 25 50600 96580 7156
NA6911 760 55 63 80 45 82560 172000 7156
60 NKI60/25 388 60 68 82 25 35500 85000 7156
NA4912 412 60 68 85 25 52800 11050 6571
NA6912 798 60 68 85 45 88500 186000 6571
NKIS60 550 60 70 90 28 65000 110000 6300
65   NA4913 435 65 72 90 25 57500 110500 6571
NA6913 821 65 72 90 45 87600 194500 6571
70 NA4914 712 70 80 100 30 79000 154000 5111
NA6914 1326 70 80 100 54 12100 263000 5111
75 NA4915 765 75 85 105 30 82000 158000 5111
NA6915 1429 75 85 105 54 12800 272000 5111
80 NA4916 870 80 90 110 30 81000 170500 5111
NA6916 1510 80 90 110 54 130500 280600 5000
85 NA4917 1250 85 100 120 35 111000 237000 4600
NA6917 2200 85 100 120 63 166000 400000 4600
90 NA4918 1312 90 105 125 35 114000 250000 4400
NA6918 2310 90 105 125 63 172000 425000 4400
95 NA4919 1371 95 110 130 35 116000 260000 4200
NA6919 2500 95 110 130 63 174000 440000 4200
100 NA4920 1900 100 115 140 40 120000 274000 4000
110 NA4922 2070 110 125 150 40 132000 290000 3700
NA4822 1080 110 120 140 30 94000 216000 3900
120 NA4924 2860 120 135 165 45 181000 390000 3400
NA4824 1170 120 130 150 30 99000 239000 3600
130 NA4926 3900 130 150 180 50 203000 470000 3100
NA4826 1810 130 145 165 35 118000 310000 3200
140 NA4928 4150 140 160 190 50 209000 500000 2900
NA4828 1920 140 155 175 35 120000 325000 3000

US $1-30
/ Piece
|
1 Piece

(Min. Order)

###

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing

###

Customization:

###

Series Inner ring Description
With Without
NK   Yes Light series
NKS   Yes Heavy series
RNA 49   Yes Sizes same as 49 series
RNA 69   Yes Sizes same as 69 series, double row(single row to RNA6906)
RNA 48   Yes Sizes same as 48 series
NKI Yes   Light series
NKIS Yes   Heavy series
NA 49 Yes   Sizes same as 49 series
NA 69 Yes   Sizes same as 69 series, double row(single row to RNA6906)
NA 48 Yes   Sizes same as 48 series

###

Shaft 

Diameter

Bearing Designation

Mass 

Approx

Borndary 

Dimensions

Basic Load Rating

Limiting 

Speed

Cr Cor
d F D B Dynamic Static Oil
mm Series g mm N rpm
NKI NKIS NA49 NA69
8 NKIS8 46 8 14 25 16 12400 11300 21500
9 NKI9/12 14.6 9 12 19 12 6200 7002 21700
10 NKI10/16 27.3 10 14 22 16 9808 10500 19650
NA4900 21 10 14 22 13 8006 9000 23700
NA6900 38.4 10 14 22 22 8281 11612 23700
12 NA4901 25.1 12 16 24 13 5047 6352 20000
NKI12/20 39 12 16 24 20 14000 18400 21000
NA6901 44.5 12 16 24 22 11647 17052 19100
NKIS12 58 12 18 30 16 16000 17000 19100
15 NKI15/16 38 15 19 27 16 8847 12853 18800
NKI15/20 45.7 15 19 27 20 12347 19053 18800
NA4902 32 15 20 28 13 6447 9053 17000
NA6902 61.6 15 20 28 23 13100 20900 20000
NKIS15 90 15 22 35 20 23500 24000 17000
17 NKI17/16 41.4 17 21 29 16 13000 18200 17000
NA4903 32.8 17 22 30 13 7010 10010 16700
NA6903 68.2 17 22 30 23 14400 24900 16200
20 NKI20/16 48.5 20 24 32 16 10800 17000 14000
NA4904 70.2 20 25 37 17 11912 16594 16200
NKIS20 119 20 28 42 20 26500 35500 14000
22 NKI22/16 50 22 25 34 16 8721 15340 16200
NA49/22 76 22 28 39 17 12996 19175 14360
NA69/22 130 22 28 39 30 21375 35750 14360
25 NKI25/30 115 25 29 38 30 31500 56000 14000
NA4905 76 25 30 42 17 13452 20475 13832
NA6905 138 25 30 42 30 19300 31750 13832
NKIS25 160 25 32 47 22 32000 55000 12500
28 NA49/28 90.7 28 32 45 17 13900 20100 13832
NA69/28 170 28 32 45 30 22400 36850 13832
32 NKI32/20 101 32 35 45 20 13851 26900 12382
NA49/32 150 32 40 52 20 19000 32600 11134
NA69/32 272 32 40 52 36 25500 68500 11134
35 NKI35/30 165 35 40 50 30 22200 51350 11134
NA4907 151 35 42 55 20 19800 41500 11134
NA6907 301 35 42 55 36 26000 60500 11134
NKIS35 210 35 43 58 22 33000 56000 9500
40 NKI40/20 124 40 45 55 20 22000 48000 10127
NKI40/30 184 40 45 55 30 35000 86000 10127
NA4908 123 40 48 62 22 31036 63873 8567
NA6908 401 40 48 62 40 64000 112000 8567
42 NKI42/20 138 42 47 57 20 26000 52500 9500
45 NKI45/25 218 45 50 62 25 36000 70000 8567
NKI45/35 289 45 50 62 35 41500 102000 8567
NA4909 260 45 50 68 22 37000 69500 8052
NA6909 479 45 50 68 40 61500 123500 8052
NKIS45 306 45 55 72 22 43000 71000 7500
50 NKI50/25 262 50 55 68 25 32000 78000 7890
NA4910 264 50 58 72 22 41000 72000 7526
NA6910 457 50 58 72 40 68000 135000 7526
NKIS50 510 50 60 80 28 60000 95000 7200
55 NKI55/35 357 55 60 72 35 48000 126800 7256
NA4911 386 55 63 80 25 50600 96580 7156
NA6911 760 55 63 80 45 82560 172000 7156
60 NKI60/25 388 60 68 82 25 35500 85000 7156
NA4912 412 60 68 85 25 52800 11050 6022
NA6912 798 60 68 85 45 88500 186000 6022
NKIS60 550 60 70 90 28 65000 110000 6300
65   NA4913 435 65 72 90 25 57500 110500 6022
NA6913 821 65 72 90 45 87600 194500 6022
70 NA4914 712 70 80 100 30 79000 154000 5111
NA6914 1326 70 80 100 54 12100 263000 5111
75 NA4915 765 75 85 105 30 82000 158000 5111
NA6915 1429 75 85 105 54 12800 272000 5111
80 NA4916 870 80 90 110 30 81000 170500 5111
NA6916 1510 80 90 110 54 130500 280600 5000
85 NA4917 1250 85 100 120 35 111000 237000 4600
NA6917 2200 85 100 120 63 166000 400000 4600
90 NA4918 1312 90 105 125 35 114000 250000 4400
NA6918 2310 90 105 125 63 172000 425000 4400
95 NA4919 1371 95 110 130 35 116000 260000 4200
NA6919 2500 95 110 130 63 174000 440000 4200
100 NA4920 1900 100 115 140 40 120000 274000 4000
110 NA4922 2070 110 125 150 40 132000 290000 3700
NA4822 1080 110 120 140 30 94000 216000 3900
120 NA4924 2860 120 135 165 45 181000 390000 3400
NA4824 1170 120 130 150 30 99000 239000 3600
130 NA4926 3900 130 150 180 50 203000 470000 3100
NA4826 1810 130 145 165 35 118000 310000 3200
140 NA4928 4150 140 160 190 50 209000 500000 2900
NA4828 1920 140 155 175 35 120000 325000 3000
US $1-30
/ Piece
|
1 Piece

(Min. Order)

###

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing

###

Customization:

###

Series Inner ring Description
With Without
NK   Yes Light series
NKS   Yes Heavy series
RNA 49   Yes Sizes same as 49 series
RNA 69   Yes Sizes same as 69 series, double row(single row to RNA6906)
RNA 48   Yes Sizes same as 48 series
NKI Yes   Light series
NKIS Yes   Heavy series
NA 49 Yes   Sizes same as 49 series
NA 69 Yes   Sizes same as 69 series, double row(single row to RNA6906)
NA 48 Yes   Sizes same as 48 series

###

Shaft 

Diameter

Bearing Designation

Mass 

Approx

Borndary 

Dimensions

Basic Load Rating

Limiting 

Speed

Cr Cor
d F D B Dynamic Static Oil
mm Series g mm N rpm
NKI NKIS NA49 NA69
8 NKIS8 46 8 14 25 16 12400 11300 21500
9 NKI9/12 14.6 9 12 19 12 6200 7002 21700
10 NKI10/16 27.3 10 14 22 16 9808 10500 19650
NA4900 21 10 14 22 13 8006 9000 23700
NA6900 38.4 10 14 22 22 8281 11612 23700
12 NA4901 25.1 12 16 24 13 5047 6352 20000
NKI12/20 39 12 16 24 20 14000 18400 21000
NA6901 44.5 12 16 24 22 11647 17052 19100
NKIS12 58 12 18 30 16 16000 17000 19100
15 NKI15/16 38 15 19 27 16 8847 12853 18800
NKI15/20 45.7 15 19 27 20 12347 19053 18800
NA4902 32 15 20 28 13 6447 9053 17000
NA6902 61.6 15 20 28 23 13100 20900 20000
NKIS15 90 15 22 35 20 23500 24000 17000
17 NKI17/16 41.4 17 21 29 16 13000 18200 17000
NA4903 32.8 17 22 30 13 7010 10010 16700
NA6903 68.2 17 22 30 23 14400 24900 16200
20 NKI20/16 48.5 20 24 32 16 10800 17000 14000
NA4904 70.2 20 25 37 17 11912 16594 16200
NKIS20 119 20 28 42 20 26500 35500 14000
22 NKI22/16 50 22 25 34 16 8721 15340 16200
NA49/22 76 22 28 39 17 12996 19175 14360
NA69/22 130 22 28 39 30 21375 35750 14360
25 NKI25/30 115 25 29 38 30 31500 56000 14000
NA4905 76 25 30 42 17 13452 20475 13832
NA6905 138 25 30 42 30 19300 31750 13832
NKIS25 160 25 32 47 22 32000 55000 12500
28 NA49/28 90.7 28 32 45 17 13900 20100 13832
NA69/28 170 28 32 45 30 22400 36850 13832
32 NKI32/20 101 32 35 45 20 13851 26900 12382
NA49/32 150 32 40 52 20 19000 32600 11134
NA69/32 272 32 40 52 36 25500 68500 11134
35 NKI35/30 165 35 40 50 30 22200 51350 11134
NA4907 151 35 42 55 20 19800 41500 11134
NA6907 301 35 42 55 36 26000 60500 11134
NKIS35 210 35 43 58 22 33000 56000 9500
40 NKI40/20 124 40 45 55 20 22000 48000 10127
NKI40/30 184 40 45 55 30 35000 86000 10127
NA4908 123 40 48 62 22 31036 63873 8567
NA6908 401 40 48 62 40 64000 112000 8567
42 NKI42/20 138 42 47 57 20 26000 52500 9500
45 NKI45/25 218 45 50 62 25 36000 70000 8567
NKI45/35 289 45 50 62 35 41500 102000 8567
NA4909 260 45 50 68 22 37000 69500 8052
NA6909 479 45 50 68 40 61500 123500 8052
NKIS45 306 45 55 72 22 43000 71000 7500
50 NKI50/25 262 50 55 68 25 32000 78000 7890
NA4910 264 50 58 72 22 41000 72000 7526
NA6910 457 50 58 72 40 68000 135000 7526
NKIS50 510 50 60 80 28 60000 95000 7200
55 NKI55/35 357 55 60 72 35 48000 126800 7256
NA4911 386 55 63 80 25 50600 96580 7156
NA6911 760 55 63 80 45 82560 172000 7156
60 NKI60/25 388 60 68 82 25 35500 85000 7156
NA4912 412 60 68 85 25 52800 11050 6022
NA6912 798 60 68 85 45 88500 186000 6022
NKIS60 550 60 70 90 28 65000 110000 6300
65   NA4913 435 65 72 90 25 57500 110500 6022
NA6913 821 65 72 90 45 87600 194500 6022
70 NA4914 712 70 80 100 30 79000 154000 5111
NA6914 1326 70 80 100 54 12100 263000 5111
75 NA4915 765 75 85 105 30 82000 158000 5111
NA6915 1429 75 85 105 54 12800 272000 5111
80 NA4916 870 80 90 110 30 81000 170500 5111
NA6916 1510 80 90 110 54 130500 280600 5000
85 NA4917 1250 85 100 120 35 111000 237000 4600
NA6917 2200 85 100 120 63 166000 400000 4600
90 NA4918 1312 90 105 125 35 114000 250000 4400
NA6918 2310 90 105 125 63 172000 425000 4400
95 NA4919 1371 95 110 130 35 116000 260000 4200
NA6919 2500 95 110 130 63 174000 440000 4200
100 NA4920 1900 100 115 140 40 120000 274000 4000
110 NA4922 2070 110 125 150 40 132000 290000 3700
NA4822 1080 110 120 140 30 94000 216000 3900
120 NA4924 2860 120 135 165 45 181000 390000 3400
NA4824 1170 120 130 150 30 99000 239000 3600
130 NA4926 3900 130 150 180 50 203000 470000 3100
NA4826 1810 130 145 165 35 118000 310000 3200
140 NA4928 4150 140 160 190 50 209000 500000 2900
NA4828 1920 140 155 175 35 120000 325000 3000

Bushing Application, Type and Compression Capability

Bushings are cylindrical bushings used in machinery. It prevents wear of moving parts and is often used as an enclosure. Bushings are also known as plain bearings or sleeve bearings. You may be wondering what these parts do and how they work, but this article aims to answer all your questions. We’ll cover bushing applications, types and compression capabilities so you can choose the right one for your needs.
bushing

application

A bushing is a mechanical component that plays an important role in many different fields. In addition to being very practical, it helps reduce noise, vibration, wear and provides anti-corrosion properties. These properties help mechanical equipment in various ways, including making it easier to maintain and reducing its overall structure. The functionality of an enclosure depends on its purpose and environment. This article will discuss some of the most common applications of casing.
For example, in an aircraft, the bushing assembly 16 may be used for the bulkhead isolator 40 . The bushing assembly 16 provides the interfaces and paths required for current flow. In this manner, the sleeve assembly provides a secure, reliable connection between two objects with different electrical charges. They also prevent sparking by increasing the electrical conductivity of the component and reducing its resistivity, thereby minimizing the chance of spark formation.
Another common application for bushings is as a support shaft. Unlike bearings, bushings operate by sliding between two moving surfaces. As a result, they reduce friction and handling stress, reducing overall maintenance costs. Typically, the bushing is made of brass or bronze. The benefits of bushings are similar to those of bearings. They help extend the life of rotating machines by reducing frictional energy loss and wear.
In addition to identifying growth opportunities and minimizing risks, the Bushing Anti-Vibration Mounts Market report provides insights into the dynamics of the industry and its key players. The report covers global market size, applications, growth prospects, challenges and regional forecasts. The detailed section on Bushing Anti-Vibration Mounts industry provides insights on demand and supply along with competitive analysis at regional and country level.

type

There are several types of bushings. Among them, the SF6 insulating sleeve has the simplest structure and is based on composite hollow insulators. It also has several metal shielding cylinders for regulating the electric field within the enclosure and another for grounding the metal shield. In addition to being lightweight, this sleeve is also very durable, but the diameter of its shield electrode is very large, which means special installation and handling procedures are required.
Linear bushings are usually pressed into the bore of the shaft and provide support as the shaft moves in/out. Non-press-fit bushings are held in place by snap rings or pins. For certain applications, engineers often choose bushings over bearings and vice versa. That’s why. Below are some common bushing types. If you need to buy, make sure you know how to tell them apart.
OIP bushings are used for oil-filled cable boxes, and oil-to-oil bushings are used for EHV power transformers. The main components of the OIP enclosure are shown in Figure 7a. If you are considering this type of bushing for your specific application, you need to make sure you understand your specific requirements. You can also consult your local engineering department for more information.
All types of bushings should be tested for IR and capacitance. The test tap should be securely attached to the bushing flange. If damaged bushings are found, replace them immediately. Be sure to keep complete records of the enclosure for routine maintenance and any IR testing. Also, be sure to pay attention to tan d and thermal vision measurements.
bushing

Compressive ability

There are several things to consider when choosing an enclosure. First, the material. There are two main types of bushings: those made of filled Teflon and those made of polyester resin. The former has the highest compressive strength, while the latter has a lower compressive capacity. If you need small amounts, glass-filled nylon bushings are the most common and best option. Glass-filled nylon is an economical material with a compressive strength of 36,000 lbs.
Second, the material used for the enclosure must be able to withstand the load. For example, bronze bushings can cause metal shavings to fall into the papermaking process. CG materials can withstand very high levels of moisture, which can damage bushings that require lubrication. Additionally, these materials can operate for extended periods of time without lubrication. This is particularly advantageous in the paper industry, since the casing operates in a humid environment.
In addition to the material and its composition, other characteristics of the enclosure must also be considered, including its operating temperature. Although frictional heat from moving loads and the temperature of the bushing itself can affect the performance of the bushing, these factors determine its service life. For high temperature applications, the PV of the enclosure should be kept low. On the other hand, plastic bushings are generally less heat resistant than metal bushings. In addition, plastic sleeves have a high rate of thermal expansion. To avoid this, size control is also important.
Low pressure bushings have different requirements. An 800 MVA installation requires a low voltage bushing rated at 14 000 A. The palm assembly of the transformer also features a large central copper cylinder for electrical current. The bushing must withstand this amount of current and must maintain an even distribution of current in the transformer tank. If there is a leak, the bushing must be able to resist the leak so as not to damage the transformer.

cost

The cost of new control arm bushings varies widely. Some parts are cheaper than others, and a new part is only $200. However, if you replace the four control bushings in your car, the cost can exceed $1,200. The cost breakdown for each section is listed below. If you plan to replace all four, the cost of each bushing may range from $200 to $500.
The control arm bushing bears the brunt of the forces generated by the tire and is parallel to the direction of the force. However, over time, these components wear out and need to be replaced. Replacing one control arm bushing costs between $300 and $1,200. However, the cost of replacing each arm bushing depends on your car model and driving habits. The control arm bushings should last about 100,000 miles before needing replacement.
The repair process for control arm bushings is time consuming and expensive. Also, they may need to remove the heat shield or bracket. In either case, the procedure is simple. Stabilizer bar brackets are usually attached with one or two mounting bolts. They can also be secured with nuts or threaded holes. All you need is a wrench to remove them.
The control arm bushings are made of two metal cylinders and a thick rubber bushing. These parts can deteriorate from potholes, off-roading or accidents. Because they are made of rubber, the parts are more expensive than new. Buying used ones can save you money because you don’t need to install them yourself. However, if you do plan on fixing a luxury car yourself, be sure to find one that has a warranty and warranty.
bushing

maintain

To prevent your vehicle from overheating and leaking oil, a properly functioning bushing must be used. If the oil level is too low, you will need to check the mounting bolts to make sure they are properly tightened. Check gasket to ensure proper compression is applied, replace bushing if necessary. You should notify your vehicle manufacturer if your vehicle is immersed in oil. Whenever an oil leak occurs, it is very important to replace the oil-filled bushing.
Another important aspect of bushing maintenance is the detection and correction of partial discharges. Partial discharge is caused by current entering the bushing. Partial discharge can cause tree-like structures, cracks and carbonization in the discharge channel, which can eventually damage the casing. Early detection of these processes is critical to ensuring that your vehicle’s bushings are properly maintained. Identifying and repairing partial discharges is critical to ensuring optimal operation, regardless of the type of pump or motor.
To diagnose casing condition, perform several tests. You can use tan d measurement, which is a powerful tool for detecting the ingress of water and moisture. You can also use power factor measurements to detect localized defects and aging effects. You can also check the oil level by performing an infrared check. After completing these tests, you will be able to determine if there is enough oil in the casing.
If the oil level in the transformer is too low, water and air may leak into the transformer. To avoid this problem, be sure to check the MOG and transformer oil levels. If the silicone is pink, replace it. You should also check the function of the oil pump, fan and control circuits annually. Check the physical condition of the pump and fan and whether they need to be replaced. Clean the transformer bushing with a soft cotton cloth and inspect for cracks.

China Nki Radial Needle Roller Bearing Nki 35/30 Needle Bearing with Inner Ring     bearing and raceChina Nki Radial Needle Roller Bearing Nki 35/30 Needle Bearing with Inner Ring     bearing and race
editor by czh 2022-11-28