- Product Details
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Quick Details
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Number of Row:
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Single row
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Bore Size:
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25 - 25.01 mm
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Brand Name:
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SEMRI
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Model Number:
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NKIA5905
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Place of Origin:
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China
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Product name:
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NKIA Series 25x42x23 mm Needle Roller Combination Bearing NKIA5905
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Dimension:
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25x42x23 mm
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WEIGHT:
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0.13KG
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Structure:
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Needle roller
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Hardness:
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HRC60-HRC63
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Clearance:
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C0,C3,C4
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Vibration:
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V1 V2 V3 V4
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Noise level:
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Z1 Z2 Z3
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Steel material:
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Chrome steel
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Feature:
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Used in machine tool spindle, high frequency motor, air compressor.etc
Quick Details
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Applicable Industries:
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Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company, Indurstry
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Precision Rating:
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P0
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Seals Type:
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no seal
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Number of Row:
-
Single row
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Bore Size:
-
25 - 25.01 mm
-
Brand Name:
-
SEMRI
-
Model Number:
-
NKIA5905
-
Place of Origin:
-
China
-
Product name:
-
NKIA Series 25x42x23 mm Needle Roller Combination Bearing NKIA5905
-
Dimension:
-
25x42x23 mm
-
WEIGHT:
-
0.13KG
-
Structure:
-
Needle roller
-
Hardness:
-
HRC60-HRC63
-
Clearance:
-
C0,C3,C4
-
Vibration:
-
V1 V2 V3 V4
-
Noise level:
-
Z1 Z2 Z3
-
Steel material:
-
Chrome steel
-
Feature:
-
Used in machine tool spindle, high frequency motor, air compressor.etc
NKIA Series 25x42x23 mm NKIA5905-XL Needle Roller Combination Bearing NKIA5905
Needle roller / angular contact ball bearings
SEMRI
needle roller / angular contact ball bearings combine a radial needle roller bearing with an angular contact ball bearing. The radial loads are accommodated exclusively by the needle roller bearing and the axial loads exclusively by the angular contact ball bearing.
These low cross section bearings can operate at high speeds and accommodate heavy radial and light axial loads. SEMRI supplies these bearings without seals in the following two series:
NKIA series ( fig. 1 ), bearings can accommodate axial loads in one direction
NKIB series ( fig. 2 ), bearings can accommodate axial loads in both directions
Bearings in both series are separable i.e. the inner ring can be mounted separately from the outer ring, rolling element and cage assemblies. However, the inner rings in the NKIB series are not interchangeable with those from another seemingly identical bearing. Therefore, the bearings must be kept together as supplied.
Depending on the application, needle roller / angular contact ball bearings can be grease or oil lubricated. In the case of grease lubrication, both the needle roller and angular contact ball bearing should be filled with the same lubricant prior to mounting.
NKIA series
Needle roller / angular contact ball bearings in the NKIA 59 series ( fig. 1 ) can accommodate axial loads in one direction and can, therefore, locate the shaft in one direction only. For short shafts and where changes in length as a result of thermal expansion are relatively minor, two bearings in the NKIA 59 series can be mounted back-to-back ( fig. 3 ).
NKIB series
Needle roller / angular contact ball bearings in the NKIB 59 series ( fig. 2 ) can locate a shaft in both directions. Depending on the bearing size, the axial clearance is between 0.08 and 0.25 mm. To facilitate mounting, the bearing has a two-piece inner ring. When mounting the inner ring, it is important that the two pieces are mounted immediately adjacent to each other without any gap between them.
Lubrication :
NKIA and NKIB can be lubricated with grease or oil. For lubrication, the outer ring has a lubrication groove and lubrication hole.
Operating temperature :
They are suitable for operating temperatures from –20 °C to +120 °C.
Cages :
The radial cages are made from sheet steel or plastic. Bearings with a plastic cage have the suffix TV.
NKIA and NKIB can be lubricated with grease or oil. For lubrication, the outer ring has a lubrication groove and lubrication hole.
Operating temperature :
They are suitable for operating temperatures from –20 °C to +120 °C.
Cages :
The radial cages are made from sheet steel or plastic. Bearings with a plastic cage have the suffix TV.
Part of the bearing specification :
| Bearing No. | Dimension (mm) | Mass | |||
| d | F | D | B | (g) | |
| NKIA 5901 | 12 | 16 | 24 | 16 | 40 |
| NKIA 5902 | 15 | 20 | 28 | 18 | 50 |
| NKIA 5903 | 17 | 22 | 30 | 18 | 56 |
| NKIA 5904 | 20 | 25 | 37 | 23 | 103 |
| NKIA 59/22 | 22 | 28 | 39 | 23 | 118 |
| NKIA 5905 | 25 | 30 | 42 | 23 | 130 |
| NKIA 5906 | 30 | 35 | 47 | 23 | 147 |
| NKIA 5907 | 35 | 42 | 55 | 27 | 243 |
| NKIA 5908 | 40 | 48 | 62 | 30 | 315 |
| NKIA 5909 | 45 | 52 | 68 | 30 | 375 |
| NKIA 5910 | 50 | 58 | 72 | 30 | 380 |
| NKIA 5911 | 55 | 63 | 80 | 34 | 550 |
| NKIA 5912 | 60 | 68 | 85 | 34 | 590 |
| NKIA 5913 | 65 | 72 | 90 | 34 | 635 |
| NKIA 5914 | 70 | 80 | 100 | 40 | 980 |
| NKIB 5901 | 12 | 16 | 24 | 16 | 43 |
| NKIB 5902 | 15 | 20 | 28 | 18 | 52 |
| NKIB 5903 | 17 | 22 | 30 | 18 | 58 |
| NKIB 5904 | 20 | 25 | 37 | 23 | 107 |
| NKIB 59/22 | 22 | 28 | 39 | 23 | 122 |
| NKIB 5905 | 25 | 30 | 42 | 23 | 134 |
| NKIB 5906 | 30 | 35 | 47 | 23 | 151 |
| NKIB 5907 | 35 | 42 | 55 | 27 | 247 |
| NKIB 5908 | 40 | 48 | 62 | 30 | 320 |
| NKIB 5909 | 45 | 52 | 68 | 30 | 380 |
| NKIB 5910 | 50 | 58 | 72 | 30 | 385 |
| NKIB 5911 | 55 | 63 | 80 | 34 | 555 |
| NKIB 5912 | 60 | 68 | 85 | 34 | 595 |
| NKIB 5913 | 65 | 72 | 90 | 34 | 640 |
| NKIB 5914 | 70 | 80 | 100 | 40 | 985 |
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