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JTEKT Corporation JTEKT develops “High-Ability JFAST” bearing for machine tool spindles

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[JTEKT Corporation] JTEKT develops “High Ability JFAST” bearing for machine tool spindle ​
JTEKT Corporation Press release: October 23, 2024 JTEKT develops “High-Ability JFAST” bearing for machine tool spindle Grease lubrication replaces oil-air lubrication, contributing to carbon neutrality
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JTEKT Corporation (Headquarters: Kariya City, Aichi Prefecture, President and CEO: Sadato Kondo, hereinafter referred to as “JTEKT”) has developed “High Ability JFAST”, a bearing for machine tool spindles that supports high-speed rotation with grease lubrication. . This developed product will be exhibited for the first time at “JIMTOF2024 (32nd Japan International Machine Tool Fair)” to be held at Tokyo Big Sight from November 5th to 10th, 2024.
https://prcdn.freetls.fastly.net/release_image/28729/457/28729-457-6a71717602ed3f3264543e352b7620df-1962×860.png [Development background] JTEKT has set forth the JTEKT Group 2030 Vision and aims to become a “solution provider that creates the future of a mobility society through manufacturing and manufacturing equipment.” The JTEKT Group utilizes a technology platform that brings together competencies such as elemental technologies and knowledge related to products and manufacturing equipment, and combines these competencies to co-create solutions that propose solutions to internal and social problems. We are proceeding with the opening of the center.
https://prcdn.freetls.fastly.net/release_image/28729/457/28729-457-a7e5ef948acde3c1300785e55df4cff0-1280×720.jpg High Ability JFAST was developed based on customer feedback at JIMTOF2022 held two years ago. Bearings for machine tool spindles are required to rotate at high speeds, so oil-air lubrication is usually used, but air is always used during machine operation, which poses the problem of high power consumption. In response to this issue, this developed product was created as a solution that uses cage design technology that utilizes JTEKT’s expertise to expand the high-speed rotation range that can be handled with grease lubrication, and realize energy savings and CO2 emissions reduction. 【 Features of High Availability JFAST 】 Highly available JFAST is a machine tool spindle bearing with excellent high speed and low temperature rise that uses a PEEK resin cage optimally designed for grease lubrication. We are the world’s first angular contact ball bearing to achieve a DMN value* of 1.8 million using grease lubrication (according to our own research). Bearing temperature rise has been reduced by approximately 30% compared to conventional products, and grease life has been extended by approximately 20%. Cylindrical roller bearings achieve a dmn value of 1.5 million with grease lubrication. Bearing temperature rise has been reduced by approximately 40% compared to conventional products, and grease life has been improved by approximately 20%. By adopting these two bearings, we can propose a #40 size spindle that can rotate at 20,000 min-1. This allows the spindle lubrication method to be replaced from oil-air lubrication to grease lubrication, reducing spindle air consumption by approximately 60% compared to oil-air lubrication. *DMN value: A value that represents the rotational performance of a bearing. Pitch circle diameter (mm) x rotation speed (min-1)
https://prcdn.freetls.fastly.net/release_image/28729/457/28729-457-1c4f4a8623ca6f515132e702cc836507-1382×474.png Highly available JFAST series features
https://prcdn.freetls.fastly.net/release_image/28729/457/28729-457-71c043dfba02ed94c7b99552080b777b-689×458.png High availability JFAST series spindle mounting position (image) [Future outlook] In order to achieve carbon neutrality at
manufacturing sites, demand for grease lubrication in machine tool spindle bearings is expected to increase in the future. JTEKT will contribute to the decarbonization of manufacturing sites through Highly Able JFAST. JTEKT will continue to leverage the group’s competence to provide optimal solutions to the issues faced by customers and other stakeholders. [Reference] • August 27, 2024 Press release “Second medium-term management plan formulated”
https://www.jtekt.co.jp/news/2024/004015.html • October 1, 2024 Press release “Exhibiting at JIMTOF2024 (32nd Japan International Machine Tool Fair)” https://www.jtekt.co.jp/news/2024/004103.html

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