NSK High Precision Angular Contact Ball Bearings (Standard Series) This is the basic series of ISO standard NSK precision angular contact ball bearings. 1. Adopt long-life bearing steel (Z steel) as standard material. 2.70 series and 79 series products can also be equipped with sealing rings to increase the grease life to 1.5 times. 3. Depending on the type, two cages are available. NSK ultra-high-speed angular contact ball bearings (Robust series) are high-function series products that support the high performance of machine tools developed by NSK with the essence of material technology, evaluation technology and analysis technology that NSK is proud of. In addition, the series of products with sealing rings, with their high performance and long life, can promote the improvement of the reliability of machine tools, and have good environmental protection performance, and can contribute to energy saving. 1. Low heat generation, high speed. 2. The X-type product is made of SHX material with excellent heat resistance and wear resistance, which realizes high speed and long life. 3. According to different applications, a strong product lineup with different contact angles and ball material specifications has been established. 4. With a wide sealing ring, compared with open bearings, the grease life is increased to 1.7 times, achieving a long life. NSK ultra-high-speed angular contact ball bearings (Robust series SpinShotⅡ) pursue the optimization of lubrication, and achieve further ultra-high speed while achieving unprecedented silence. 1. Using oil-air lubrication, it can achieve 40,000 revolutions per minute on the NT#40 level. 2. Compared with the previous oil-air lubrication, the noise is reduced by about 3-5dB. 3. Only about half of the amount of air in the previous oil-air lubrication is used, that is, the speed of 40,000 revolutions per minute is reached. NSK ultra-high-precision angular contact ball bearings (BSR series) are high-precision, ultra-high-speed series products that correspond to an inner diameter of 25mm or less and enable small spindles to exhibit high performance. 1. Super high-speed bearings specially designed for small spindles. 2. The X-type product uses SHX material with excellent heat resistance and wear resistance to achieve long life at high speed. 3. The standard adopts high-precision specifications. NSK High Speed ​​Thrust Angular Contact Ball Bearings (Robust Series) The Robust series is an angular contact ball bearing used to withstand thrust, achieving high speed and high rigidity. 1. BTR contact angle 40°: high thrust rigidity and low heat generation. 2. BAR contact angle 30°: Compared with BTR, it pays more attention to high speed. NSK High Rigidity Thrust Angular Contact Ball Bearings (TAC-F Series) TAC-F series is a series of angular contact ball bearings that emphasize high rigidity and are used to withstand thrust. 1. Contact angle 50°: Rigidity is more important than high speed. Ideal for heavy cutting and high rigidity shafts. 2. Non-separable type, good operability.
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