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NNU4922BKSPW33 water pump bearing specification
| Designation | NNU 4922 BK/SPW33 | |
| Category | ||
| Super-precision Cylindrical Roller Bearing | ||
| Dimensions | ||
| d (Bore diameter) | 110 mm | 4.331 in |
| D (Outer diameter) | 150 mm | 5.906 in |
| B (Width) | 40 mm | 1.575 in |
| W (Weight) | 2.05kg | 4.52 lbs |
| Technical Data | ||
| Cr (kN) Basic dynamic load rating | 122 | |
| C0r (kN) Basic static load rating | 270 | |
| Reference speed (kN) | 5300 | |
| Limiting speed (kN) | 6000 | |
| Internal design | B=modified internal design K=tapered bore 1:12 | |
| Row design | double row | |
| Seal | open | |
| cage | brass | |
| Precision | super precision | |
| Clearance | normal clearance | |
| lubrication option | W33=Annular groove and three lubrication holes in the outer ring | |
About NNU 4922 BK/SPW33 cylindrical roller bearing 110*150*40 mm
| Category | Super-precision Cylindrical Roller Bearing-for water and waste water pumps |
| Overview | Water treatment facility operate on relable and energy efficient pumping system, because any unplanned service stops can lead to significant losses, and the energy consumption accounts for 45% of the total cost. Moreover, most of the industrical water pumps are located in remote areas, making maintenance service very challenging. Thus, as a core part of the pumping rotary system, the bearings need to be energy-efficient, robust and reliable. |
| Features and Benefits | 1. high load carrying capacity 2. high speed capacity 3. high rigidity 4. long service life due to reduced noise, friction and heat 5. highly reliable |
| Application | 1. water and waste water pumps, and other vacuum pumps. 2. High speed rolling mills 3. Printing machinery 5. High speed turbochargers |
Extended NNU-4922-BK/SPW33 roller bearing 110*150*40 for water pumps
| Designation | Principal dimensions | Basic load ratings | Attainable speeds | ||||
| dynamic | static | Grease lubrication | Oil-air lubrication | ||||
| d[mm] | D[mm] | B[mm] | C[kN] | C0[kN] | [r/min] | [r/min] | |
| NNU 4920 B/SPW33 | 100 | 140 | 40 | 128 | 255 | 5 600 | 6 300 |
| NNU 4920 BK/SPW33 | 100 | 140 | 40 | 128 | 255 | 5 600 | 6 300 |
| NN 3020 KTN9/SP | 100 | 150 | 37 | 151 | 250 | 5 600 | 6 300 |
| NN 3020 TN9/SP | 100 | 150 | 37 | 151 | 250 | 5 600 | 6 300 |
| NNU 4921 B/SPW33 | 105 | 145 | 40 | 130 | 260 | 5 300 | 6 000 |
| NNU 4921 BK/SPW33 | 105 | 145 | 40 | 130 | 260 | 5 300 | 6 000 |
| NN 3021 KTN9/SP | 105 | 160 | 41 | 190 | 305 | 5 300 | 6 000 |
| NN 3021 TN9/SP | 105 | 160 | 41 | 190 | 305 | 5 300 | 6 000 |
| NNU 4922 B/SPW33 | 110 | 150 | 40 | 132 | 270 | 5 300 | 6 000 |
| NNU 4922 BK/SPW33 | 110 | 150 | 40 | 132 | 270 | 5 300 | 6 000 |
| NN 3022 KTN9/SP | 110 | 170 | 45 | 220 | 360 | 5 000 | 5 600 |
| NN 3022 TN9/SP | 110 | 170 | 45 | 220 | 360 | 5 000 | 5 600 |
| NNU 4924 B/SPW33 | 120 | 165 | 45 | 176 | 340 | 4 800 | 5 300 |
| NNU 4924 BK/SPW33 | 120 | 165 | 45 | 176 | 340 | 4 800 | 5 300 |
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