HK 1520 .2RS Bearing 15x21x20mm
The HK 1520 .2RS bearing is a Needle Roller Bearing with an inner diameter of 15 mm , an outer diameter of 21 mm, a width of 20 mm. It typically uses P2 grade precision tolerances and 2RS type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Needle Roller Bearing HK 1520 .2RS
Material: Chrome Steel
Size:15x21x20mm
ID (inner diameter) bore: 15mm
OD (outer diameter):21mm
Width/Heigh/Thickness:20mm
Brand:INA
Needle roller bearings to meet the requirements of installation, use the split wide inner ring, ease of installation. Inner ring on both sides with card ring, may complete and cooperate well. Its performance with 3000 type.
A needle roller bearing is a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface.
Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race (sometimes the housing itself).
Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.
Full complement bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have extremely high radial load carrying capacity and are suitable for particularly compact designs.
Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.
Additional clarification of needle roller: According to "Marks' Standard Handbook for Mechanical Engineers", a needle bearing is a roller bearing with rollers whose length are at least four times their diameter.
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5) Our advantage products include deep groove ball bearing, self-aligning ball bearing, cylinder roller bearing, self-aligning roller bearing, multi-roll bearing, angular contact ball bearing, tapered roller bearing, thrust ball bearing, non-standard bearing, extra-large bearing, and cross roller.
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