Date: 2016-08-12

NSK Adds High-Speed, High-Power Grease-Replenishing Spindle to Built-in Motor Spindle Series Featuring World's Fastest Speed* of 25,000 min-1

Tokyo, Japan, October 3, 2014 - NSK Ltd. (NSK; Headquarters: Tokyo, Japan; President and CEO: Norio Otsuka) today announced that it has added a high-speed, high-power grease-replenishing spindle that achieves speeds of 25,000 min-1 to its lineup. This new product achieves the world's fastest speed for the spindle of machining tools, thereby making machining tools capable of higher speeds and higher levels of output.

NSK will be exhibiting this new product at JIMTOF2014 (Japan International Machine Tool Fair) from Thursday, October 30 to Tuesday, November 4 at Tokyo Big Site (Koto-ku, Tokyo). NSK will launch the sales of this product in January 2015 and is targeting 300 million in global annual sales for the whole series by 2016.

* NT40 taper size class (based on NSK internal research)


Development Background

Oil and air lubrication is the main method for lubrication of the spindle of high-speed machine tools. However, in recent years, the need for grease lubrication, which is better in terms of environmental and power conservation performance, has risen. In response to this need, NSK launched its very popular, high-speed, built-in motor spindles in 2003, applying the world's first grease-replenishing lubrication system for a dramatic improvement in high-speed performance of up to 20,000 min-1.

This latest offering by NSK improves the speed and output of its grease lubrication lineup to the fastest in the world, at 25,000 min-1. This new product uses grease lubrication to achieve speeds previously only possible with oil-air lubrication while still maintaining environmental and power conservation performance, which is the strength of grease lubrication products.

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