Petroleum machinery bearings

  The stability, safety, and reliability of petroleum machinery and its matched bearings are extremely important.

  Petroleum rigs are a group of very complex large-scale complete equipment. In addition to general land oil and natural gas drilling, rigs are used in deserts, alpines, plateaus, swamps, shoals, oceans, etc. The drilling rigs must withstand harsh natural conditions such as wind and sand, low temperatures, seawater corrosion, and sea wave erosion. Therefore, the future technical development trend of bearings for oil drilling equipment will be high-pressure resistance, low-temperature resistance, pollution resistance, and corrosion resistance.

  The bearings used in oil machinery are basically ordinary bearings, which are required to adapt to low wear during operation, to be used in harsh environments, to keep low calorific value, and to maintain high reliability. However, as the matched bearing of the mud pump at the heart of the oil rig, the accuracy level is required to be above P6 (E), the service life requirement is 5-10 years, and the reliability requirement is more than 95%. The pump is the most basic equipment in the petrochemical industry. It plays a very important role in the petroleum transportation and refining process. This requires the bearing to have a special high load capacity and a very long service life.

  CNB has made many improvements and optimizations in the selection of materials, heat treatment, the structure of the cage, lubrication, sealing, etc. to ensure that the bearings can meet the individual needs of the industry.



Here are the mud pump bearing number list:

 

Mud Pump Bearings Parts Type IOS d D B Cr C0r Weight
mm mm mm kN kN kg
NU3040X3M/C3 Principal Axis Cylindrical Roller P0-P6 200 320 88.9 765 1350 28.7
24056CA/C3W33 Principal Axis Spherical Roller P0-P6 280 420 140 1860 3700 69.2
NUP6/558.8Q1/C9-NJB Connecting Rod Tip Cylindrical Roller P0-P6 558.8 685.8 100 1680 4450 83.4
NNU6/177X4Q1/C9-1-NJB Wrist Pin End Cylindrical Roller P0-P6 177.8 257.175 196.85 1250 3050 33.9
NU3044X3M/C91YA6 Principal Axis Cylindrical Roller P0-P6 220 350 98.4 1280 2090 38.4
24060CA/C3W33 Principal Axis Spherical Roller P0-P6 300 460 160 2440 4950 98.6
NUP6/660.4Q1/C9-1 Connecting Rod Tip Cylindrical Roller P0-P6 660.4 812.8 107.95 2280 6000 127
NNU6/206X4M/C9 Wrist Pin End Cylindrical Roller P0-P6 206.375 285.75 222.25 1460 4500 43.9
NU3044X3M/C91YA6 Principal Axis Cylindrical Roller P0-P6 220 350 98.4 1280 2090 38.4
23160CA/W33 Principal Axis Spherical Roller P0-P6 300 500 160 2660 4750 127
NUP6/660.4Q1/C9-LS Connecting Rod Tip Cylindrical Roller P0-P6 660.4 863.6 107.95 3000 6050 170
NNU6/206X4M/C9 Wrist Pin End Cylindrical Roller P0-P6 206.375 285.75 222.25 1460 4500 43.9
NU3152/C4 Principal Axis Cylindrical Roller P0-P6 260 440 144 2300 3800 88.9
23172CA/C3W33 Principal Axis Spherical Roller P0-P6 360 600 192 3740 6850 224
NUP19/800X2/C9 Connecting Rod Tip Cylindrical Roller P0-P6 800 1060 125 3750 8650 321
NA6/228.6 Wrist Pin End Cylindrical Roller P0-P6 228.6 317.5 241.3 1830 5180 59.1
NU3044X3M/C92YA6-LS Principal Axis Cylindrical Roller P0-P6 220 350 98.4 1280 2090 38
24072CA/C9W33-LS Principal Axis Spherical Roller P0-P6 360 540 180 2940 6100 149
NFP6/666X4Q1/C91-LS Connecting Rod Tip Cylindrical Roller P0-P6 666.75 838.2 114.3 2870 6850 158
NNU6036X2/C91-LS Wrist Pin End Cylindrical Roller P0-P6 180 280 219 1580 3490 51.4

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