I also sell: 6308DU bearing W637 / 3-2Z bearing ZKLF50115-2RS HM88542 bearing 2213 bearing bearing 53217 bearing NU2319ECKJ bearings 6332-M bearing 23244R bearings 31322X + T7GB110 bearing BT2B328705 / HA1 bearings 7320DF bearing LM520349 / LM520310D bearing 6209Z bearing SC71906DB / P7 bearing
   Cross-bearing Shanghai Bearing distributors NSK 71902CDB
[71902CDB bearing Specifications] Size:
Bearing Type: 71902CDB bearing
Inner diameter: 15 mm
Outside diameter: 28 mm
Thickness: 14 mm
Bearings: Angular Contact Ball Bearings
Bearing Brand: NSK Bearings
Spot supply of imported bearings NACHI
   Accuracy class
    Angular contact ball bearings accuracy class include dimensional tolerance and rotation precision. From low to high precision expressed as P0 (ordinary), P6 (P6X), P5, P4, P2. In addition, European and American brands also used P3, P7, P9 indicates accuracy class, P3 is equivalent to ISO and JIS standards P6 level, P7 equivalent level P4, P9 is equivalent to P2 level.
   nsk bearing lubrication:
   Oil bath 1. NSK Bearings smooth
    Smooth oil bath is the most common NSK bearings smooth manner, suitable for low, medium-speed bearing smooth. The NSK Bearings by a local dip tank, lubricating oil by the rotating bearing parts brought up, and then flow back into the oil tank should be slightly lower than the lowest rolling element center.
   2. NSK Bearings drip smooth
    Suitable drip smooth need constant supply lubricating oil was NSK bearing member, the amount of the individual drip drop every 3-8 seconds is appropriate, too much oil will cause the bearing temperature increased.
   Cycle oil smooth 3. NSK Bearings
    The filtered oil pump oil recommended for admission to NSK bearing member through the bearing lubricating oil filtered again after cooling use. Because circulating oil heat can be taken away, the bearing cooling, therefore the method useful in high speed bearing member.
   4. NSK Bearings smooth spray
    With dry air through the contraction of smooth oil sprayer and mist mixed result, radioactive NSK bearings, air bearings can effectively cool and avoid intrusion of impurities. This method is suitable for high-speed, low-temperature smooth bearing member.
   5. NSK Bearings smooth radiation
    The low-pressure oil pump oil through the nozzle strikes NSK bearings, bearing the incident through the other end of the bearing oil flowing into the oil sump. In the high-speed rotation of the bearing, rolling elements and maintain aircraft also commensurate with the high rotational speed so that the ambient air stream caused by an individual is difficult to smooth the way lubricating oil to the bearings, then must use low-pressure radiation will smooth the way oil spray to the bearing, the nozzle position should be placed between the inner and maintain the central rack.
   We recommend the following models: RNA4840 bearings 365/362-B bearings T2EE060 + T2EE060 bearing RRTR25 bearing CR26V bearing K16 × 20 × 17 bearing 53313 bearing bearing NAO40X55X17 32036XUE1 bearings 71913C / DB bearing bearing 71902CDB
   I also recommend 71902CDB bearings use: hammers, homogenization equipment, tower cranes, blasting equipment, steel cutting machine, drying curing equipment, card printer, natural draft cooling towers, industrial drying machine, universal printer, and other purposes.