I also sell: 7322C bearing NU2306EC bearing SDAF23284 bearing IRB4016 bearing QJ244N2 bearing 22213RHK + H313 bearing K16X22X16 bearing BL305 bearing 61808N bearing 61813-RS1 bearing NCF28 / 500V RASE55 bearing bearing bearing 7032AC bearing 52420 bearing HM804848
   Spherical roller bearings 71904CDB NSK Bearing distributors Shanghai
[71904CDB bearing Specifications] Size:
Bearing Type: 71904CDB bearing
Inner diameter: 20 mm
Outside diameter: 37 mm
Thickness: 18 mm
Bearings: Angular Contact Ball Bearings
Bearing Brand: NSK Bearings
Spot supply of imported SKF bearings
   Structural deformation double row angular contact ball bearings, there are four:
   A Type: 90mm outside diameter less than or equal to the standard design of the bearing. No ball gap, so it can withstand the equivalent of two-way axial load. The use of lightweight glass fiber reinforced nylon 66 cage, the bearing temperature rise is very small.
   A Type: 90mm outside diameter greater than the standard design of the bearing. Side of the ball gap, with z steel stamping cage or brass cage.
   Type E: is reinforced structure, the side with filling slots, you can install more of the ball, so the higher carrying capacity.
   Both sides with a dust cover and sides with a ring-type, A-type and E-type design design double row angular contact ball bearings can be on both sides with a dust cover (non-contact) or seals (contact). Sealed bearings are filled with rust lithium grease, generally between -30 degrees to 110 degrees operating temperature. Without re-lubrication during use, no heating before installation.
   When the double row angular contact ball bearing installation should be noted that although two-way bearings can withstand axial load, but if one side of the ball gap, it should be careful not to let the main axial load through the notched side of the gutter.
   nsk bearing vibration
   nsk bearing vibration of the bearing damage is very sensitive, such as peeling, indentation, corrosion, cracks, wear, etc. will be reflected in the bearing vibration measurement, therefore, through the use of special bearing vibration measuring device (frequency analyzer, etc.) measurable the size of the vibration frequency points can not be inferred unusual circumstances. The measured values due to the conditions of use or the sensor mounting position of the bearing, etc., and thus requires prior measurement of each machine will be determined after the analysis and comparison criteria.
   We recommend the following models: 23052R bearings 6220.2ZR bearings NU2216-E-TVP2 bearing 33281/33472 Bearing 7318CDF bearing IR25x30x16IS1 bearing 32319A + T2GD095 bearing RCJ17 bearing IR20X25X20 bearing JH307749 / 10 bearing bearing 71904CDB
   I also recommend 71904CDB bearings use: machine screw, planting machinery, magnetic separator, drilling equipment, machine shields, chemical molding equipment, vertical lathe, grinding equipment, accessories, tapping machine, grinding machines, etc. use.