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NSK precision angular contact ball bearings---linear guide rails for machine tools, precision spindle bearings
Source: this site     Release time:2021-12-28


NSK is a manufacturer of key machine tool components such as ball screws, linear guides, spindles and bearings. This is the source of strength to provide customers with comprehensive technical solutions.
NSK Precision Angular Contact Ball Bearing, available in a variety of sizes that can be selected for different applications The series of products are suitable for the applications of high vibration accuracy and high speed of rotating bodies such as machine tool spindles.
Features
1. The product lineup ranges from the basic series of ISO standards to the special series for machine tools.
2. Angular contact ball bearings filled with grease and seals have been serialized.
3. Robust bearing series of high function, strong product lineup, including from high rigidity series to ultra-high speed series products.
High Precision Angular Contact Ball Bearings (Standard Series)
This is the basic series of ISO standard NSK precision angular contact ball bearings.
Features:
1. Using long-life bearing steel (Z steel) as the standard material.
2.70 series, 79 series products can also be equipped with a sealing ring, which increases the grease life to 1.5 times.
3. Two types of cages are available depending on the type.
Super high-speed angular contact ball bearings (Robust series)
This is a series of high-performance products that support the high performance of machine tools developed by NSK's proud material technology, evaluation technology and analysis technology. In addition, the series of products with sealing rings, with their high performance and long life, can promote the improvement of machine tool reliability, and also have good environmental performance and can contribute to energy saving.
Features:
1. Low heat generation, high speed.
2. X-type products made of SHX materials with excellent heat resistance and abrasion resistance, realize high speed and long life.
3. According to different uses, a strong product lineup with different contact angles and ball material specifications has been established.
4. Wide width sealing ring, compared with open type bearing, the grease life is increased by 1.7 times, realizing long life.
Ultra-high-speed angular contact ball bearings (Robust series)
Pursue the optimization of refueling, and achieve a further ultra-high speed while achieving unprecedented quietness.
Features:
1. Adopt oil and gas lubrication, at NT#40 level, it can achieve 40,000 revolutions per minute.
2. Compared with the previous oil-air lubrication, the noise is reduced by about 3-5dB.
3. Only use about half of the air volume of the previous oil and gas lubrication, that is, the speed of 40,000 revolutions per minute.
Super High Precision Angular Contact Ball Bearings (BSR Series)
This is a series of high precision, ultra-high rotation speed that supports the inner diameter size of 25mm or less and enables small spindles to achieve high performance.
Features:
1. Ultra-high-speed bearings specially designed for small spindles.
2. The X-type product using SHX material with excellent heat resistance and wear resistance, realizes long life at high speed.
3. The standard adopts high precision specifications.
High Speed ​​Thrust Angular Contact Ball Bearings (Robust Series)
Robust Series are angular contact ball bearings designed to withstand thrust, achieving high speed and high rigidity.
Features:
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.
High Rigidity Thrust Angular Contact Ball Bearings (TAC-F Series)
The TAC-F Series is a series of angular contact ball bearings for thrust bearing that attach importance to high rigidity.
Features:
1. Contact angle 50°: Rigidity is more important than high speed. Suitable for powerful cutting and high rigid shaft fields.
2. Non-separable type, good operability.

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