NSK LTD., founded in 1916, is the first manufacturer in Japan to design and produce bearings. NSK precision bearings have the advantages of low heat generation and high speed. Let's take a look at what kind of high precision bearings of NSK.
NSK precision angular contact ball bearings
NSK precision angular contact ball bearings have various series of products with the best specifications to choose from according to different applications, and Super Precision Bearings are most suitable for applications where high vibration accuracy and high rotational speed are required for rotating bodies such as machine tool spindles.
Precision angular contact ball bearings (standard series)
This is the basic series of ISO standard NSK precision angular contact ball bearings. Long-life bearing steel (Z steel) is used as standard material. 70 series and 79 series products can also be equipped with a sealing ring to increase the grease life to 1.5 times. Depending on the type, two types of cages are available.
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 combining the essence of 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.
The feature of NSK Super Speed Ball bearing are Low heat and high speed, low noise. X-type products made of SHX material with excellent heat resistance and wear resistance achieve high speed and long life. According to different applications, a strong product lineup with different contact angles and ball material specifications has been established. The wide-width sealing ring increases the grease life by 1.7 times compared with the open bearing, realizing a long life.
Ultra-high-speed angular contact ball bearings (Robust series SpinShotⅡ)
Pursuing the optimization of refueling, while achieving unprecedented quietness, a further ultra-high speed is achieved
Ultra-high-speed ball bearings Using oil and gas lubrication, it can achieve 40,000 revolutions per minute on the NT#40 level. Compared with the previous oil and gas lubrication, the noise is reduced by about 3 to 5dB. With only about half the air charge of the previous oil and gas lubrication, the speed of 40,000 revolutions per minute is reached.
Ultra-high precision angular contact ball bearings (BGR series)
This is a high-performance series product that can support high-precision and ultra-high-speed rotation with an inner diameter of less than 30mm, and enable small shafts to achieve high performance.
Super high speed bearing specially designed for small shafts. X-type products made of SHX material with excellent heat resistance and wear resistance achieve high speed and long life. High-precision specifications are adopted as standard.
High-speed thrust angular contact ball bearings (Robust series)
The Robust series is an angular contact ball bearing for thrust, achieving high speed and high rigidity
BTR contact angle 40°: High thrust rigidity and low heat generation.
BAR contact angle 30°: More emphasis is placed on high speed than BTR.
High Rigidity Thrust Angular Contact Ball Bearings (TAC-F Series)
Contact angle 50°: Stiffness is more important than high speed. Ideal for powerful cutting and highly rigid shafts.
Non-separable type, good operability.
NSK Precision Cylindrical Roller Bearings
NSK Precision Cylindrical Roller Bearings have a strong ability to withstand radial loads, and are suitable for fields with high requirements on vibration accuracy and high speed.
Double Row Cylindrical Roller Bearings (High Rigidity Series)
NSK Precision Cylindrical Roller Bearings Improved machine performance with new materials and designs，High speed and low heat generation are achieved. A long life of grease lubrication is achieved. High-rigidity PPS resin cage is used to suppress deformation due to centrifugal force and achieve high-speed and stable rotation.
Single Row Cylindrical Roller Bearings (Standard Series)
This is the basic series of NSK precision single row cylindrical roller bearings based on ISO standards. And also the most used on the market, this kind of bearings Using long-life bearing steel (Z steel) as the standard material. Adopt high rigidity type rolling element guide copper alloy cage.
Single row cylindrical roller bearings (Robust series)
High heat resistance PEEK cage is adopted, and SHX material with excellent heat resistance and wear resistance is used for the main body, realizing a high speed of dmn2.2 million.
With the optimal design, low heat generation is achieved. The main body is made of SHX material, which improves the anti-seizure adhesion, and the roller is made of ceramic material, which improves the reliability. Using heat-resistant and high-rigidity PEEK resin to achieve high speed.
Bearings for Precision Ball Screw Supports
High-precision thrust angular contact ball bearings for precision ball screw support, according to different uses, adopt special designs, and are divided into two types: high-rigidity series and high-load series. Suitable for high-precision feed mechanism.
NSKHPS™ Ball Screw Support Bearings NSKTAC C Series
Axial Angular Contact Ball Bearing for Ball Screw Support (For Machine Tool High Rigidity)
In addition to the series with seals, there is also a series of high-rigidity and high-performance special-purpose bearings that have enriched the product lineup.
High rigidity and long life are achieved by a high-function dedicated design that meets the application requirements. The products with contact sealing ring with high reliability and super dust-proof design have also been serialized. Improved operability.
NSKHPS™ High Load Drive Ball Screw Support Bearings NSKTAC 03 Series
Thrust angular contact ball bearing for ball screw support (for electric injection molding machine with high load)
This is a series of high-performance design bearings in line with design simplification and cost reduction, realizing high load capacity and miniaturization. Improved reliability and long life compared to standard angular contact ball bearings. Optimum design of ball bearings for low torque.
NSKHPS outer ring integrated high-performance special bearing BSBD series with mounting holes.
This is a high-performance special bearing BSBD series with an integrated outer ring and a mounting hole. The standard product adopts a back-to-back (DB) combination, an integrated outer ring, a bidirectional thrust angular contact ball bearing with a sealing ring and filled with grease, and the operation is easier.
Grease filling operation is omitted due to filling with high-performance grease. The lineup also includes the easy-to-install BSF series with screw holes and pull-out grooves on the outer ring. Combination products are also available for heavy-duty or high-stiffness, long-life applications.
High-precision narrow-width angular contact ball bearings for machine tool rotary axes (Robust Slim)
This is an angular contact ball bearing specially designed for the rotation axis of the machine tool, and it is a series of products suitable for high-precision machining of multi-axis machining machines. The high-precision narrow-width angular contact ball bearing RobustSlim realizes high rigidity and low torque, and the rotational runout accuracy is less than 0.5μm. Ensures high torque rigidity up to the level of crossed roller bearings. More than 35% reduction in width compared to standard ball bearings
