Technical description 1 2 bearing selection 11 bearing selection procedure while it is not easy to select the optimum bearing type and combination, it is no exaggeration to say that bearing selection is essential in order to. Bearings precision machine components nsk linear guidestm ball screws monocarrierstm 1 2 nsk is the only manufacturer to offer a complete development and supply service for the essential parts required for machine tools. Timken nsk fag skf snfa precision level mm abec 79 bore size size in mm series designator bs ball screw od size size in mm matching d duplex q quad preload h. Nsk commenced operations as the first japanese manufacturer of rolling bearings back in 1916. Nsk uses thirdparty services that help us to improve our web site and show you more interesting content.
Scan 2d barcodes printed on nsk bearing boxes to assess bearing authenticity and access inspection reports online. Common greases are kluberspeed bf7222 and lubcon l252. Download bearing product catalog pdf alpine bearing. Robust series highspeed precision bearings design nsks simulation technology and fem analysis enable us to create the best design to achieve lower heat generation and highreliability. Nsk is a global manufacturer of ball and roller bearings, linear motion technology, automotive components and steering systems with both domestic and overseas manufacturing capabilities. A wide variety of nsk spindle bearing options are available to you, such as single row, double row. Timken offers a broad range of rolling bearings and related products and services to meet worldwide machine tool needs. Use newly developed cage sursave angular contact ball bearing for machinetool main spindle. Nsk has evolved high speed technology cultivated since its establishment so to meet various applications, like sub spindle of machine tools, highspeed machining spindle of desktop machines. Our portfolio includes specialized tapered roller and ball bearings, produced to the precision classes that deliver the operating characteristics necessary for the highest performance. Nsk spindle that achieved 4 million dmn using ceramic ball bearings. Therefore, nsks precision bearings are used in a wide variety of industries, such as semiconductor production and industrial robots, and have earned a reputation for excellent performance.
Ever since, we have been continuously expanding and. Direct lubrication the direct lubricated dlr feature allows for bearings to be. For inch series bearings, the fractional portion of the size is omitted. This pamphlet introduces high accuracy products such as the cylindrical roller bearing used in machine tool spindles, angular ball bearings and bearings used as support for ball screws. Nsk 7202ctynsulp4 super precision contact spindle bearings. In addition to assisting in bearing identification it helps to cross refer. Sealed spindle bearings noncontact rubber sealed bearings are greased for life with factory controlled volumes. Nodes are one of the biggest distributors for wellrenowned bearings, including fag, ina, nsk, ntn, skf, timken, iko, thk with more than 300,000 types of bearings available for immediate shipment. The app enables easier factory automation and itbased plant management. Mehta spindle bearings is a prestigious supplier of quality bearings. Nsk super precision sealed bearings offer an extensive product lineup for various applications and are widely used in such parts as machine tool spindles, live. Based on nsk s many years of precision ball manufacturing ex.
Nsk is one of the leading companies with a long tradition in. The top supplying countries or regions are china, japan, and india, which supply 99%, 1%, and 1% of spindle bearing nsk respectively. Their performance is essential to the final accuracy of. Primarily used in machine tool spindles typical example pictured below. A basic series of nsk precision angular contact ball bearings that meets iso standards. With high running accuracy, highspeed performance and high system rigidity, skf superprecision bearings are ideal for machine tools and other precision applications such as rolling mills, racing cars and marine vessels. Spindles are hard to build properly, which is why they are so expensive. There is a groove called the ball path on both the inner and outer races of ball bearings in which the balls roll. Today, nsk manufactures highly accurate, reliable precision bearings. I have a new angular contact pair on order, im leaving the other bearings alone. This page is currently in blog format as it is just my research notes for the project. The 70 and 79 series are sealed with a grease life that has been improved by one and half times. Bearings catalogs and cad drawings services nsk global. The operation manuals on this webpage are the most current versions available at this time.
Bearings for swiveling spindle heads used in machine tools. The synergies of our global network of nsk technology centres. Notice for use of single universal su bearings when these bearings are used as part of multiple combined bearings, it is recommended that the variation of bore and outer diameter tolerance is within of tolerance range. Spindle bearing nsk, spindle bearing nsk suppliers and. Several types of super precision bearings are available from nsk. Ball screws that have achieved top global brand status as a result of the cuttingedge technologies used. Nsk precision bearings deliver the highest level of accuracy, supported by our production capability, stateoftheart equipment and. There is nothing wrong with it, so im leaving it alone. The contents cover basic designations for ball and roller bearing series and their prefixes and suffixes. A bearing s rolling internal mechanism greatly reduces the effort and energy it takes to slide or move an object over the surface. Difference between su and du bearings there are 2 types of nsk universal combination bearings as shown in the table below. Nsk develops inner race dlccoated cylindrical roller bearing for highefficiency turbo chillers used in largescale air conditioners.
Spindle bearing nsk products are most popular in north america, south america, and western europe. Downloading catalogspurchasing supportkoyo bearings jtekt. Nsk and rhp bearings designation systems the objective of this publication is to introduce and explain the designation systems used to identify nsk and rhp bearings. Ultraprecision, highspeed hes810 spindles allow you to use your existing equipment for a much larger variety of operations.
For roller bearings, the rollers roll on the flat surface of each race. The bearings also minimize noise, vibration and heat generation. Ntn main spindle bearings 211 ntn specifies the accuracies of tapered bores conforming with jis classes 4 and 2 as shown below. The front roller bearing is taper mounted on the spindle with no easy way to remove without induction heating andor sacrificing the bearing. There are 1,583 spindle bearing nsk suppliers, mainly located in asia. High precision spindles and hand tools nsk america. Other spindle structures p40 features of angular contact ball bearings p42. Wheel hub bearings car wheel bearing kit nsk car parts. Nsk 6204v bearing ntn ball bearing plummer block units usa. To ensure that you always have the most current manual, please check this website regularly for updates. It features a technical explanation with selection criteria and installation examples of bearings, as well as instructions for use with example of damage. Running a three phase vfd on single phase power by derating. You can find the nsk bearings you need by designation or dimensions. Csv and pdf export of key bearing information empowers customers to track usage history.
In addition to this standard range, nsk can provide super precision bearings such as higher speed capability angular contact ball bearings, cylindrical roller bearings, radial ball bearings and double direction thrust ball bearings. Nsk offers clear and timely solutions that contribute to the design and development of new spindle applications. This facilitates mounting the bearings to the vehicle or to wheel the depending on the type. Mehta spindle bearings possesses the capability to design and produce in very quick lead times for almost any application. Most designs use ball bearings to reduce frictional torque and support low fuel consumption. Just one example of how we meet our requirements for high quality. Nsk precision angular contact ball bearings provide the perfect solution for applications requiring high runout accuracy of rotating machine parts, such as the machine tool main spindles, or the application of faster rotating speeds. Several types of super precision bearings are available from nsk, including the robust series of high. The second generation hub unit bearings from nsk integrate a mounting flange to the bearing outer ring. Bearing distributors, skf, nsk, fag, ina, iko, timken. Search in skf precision bearings catalogs and technical brochures on directindustry and find the information you need in 1 click. Super precision angular contact ball bearings nsk ltd. Conventional milling machines are machining centers can now do highspeed machining, small diameter drilling and milling with extremely good surface finishes with the hes810.
Nsk s z steel, a long life bearing steel, is used as the standard material. Nsk bearing size chart give you the capability to select the correct nsk bearings that meet the needs of your application and equipment design. A complementary range of linear guides and ball screws are also available in. Timken nsk fag skf snfa precision level mm abec 79 bore size size in mm series designator bs ball screw od size size in mm matching d duplex q quad preload h heavy bore size bore in mm. High cost performance for mc high speed main spindle solution. Alpine bearings relubrication center is a class 10,000 clean room with class 100 laminar bench work stations certified to federal standard 209e. Nsk participated in the trade show with linear rolling products including ball screws and linear guides, precision bearings for machine tools, and spindles. Machine tool spindles and hand tools by nsk america are engineered to meet the industrys demand for speed and precision. Csv and pdf export of key bearing information empowers customers to track usage history, improve product traceability, and even simplify bearing selection. Nsk america corporation, a division of nakanishi inc. Nsk product lineup for machine tools steven engineering. All skf precision bearings catalogs and technical brochures. Adequate drainage must be provided to prevent a build up of oil inside the spindle and.
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