For Special Environments
Bearings for Sanitary Environments, employ food-grade lubricant as NSF*, are suitable for the uses that need more safety such as food processing machinery.
*NSF (National Sanitation Foundation International): U.S. non-profit third party accreditation organization that is internationaly recognized in the field of public safety and health.
Product List
Stainless steel bearings, packed with food-grade grease registered as NSF*, are suitable for food processing machinery and pharmaceutical manufacturing equipment.
*NSF (National Sanitation Foundation International): U.S. non-profit third party accreditation organization that is internationaly recognized in the field of public safety and health.
These bearings employ food-grade lubricant registered as NSF H1.
Contact Ball Bearings with Oil-Air Lubrication
Ultra High-Speed rotation and low-noise performance has been achieved through focusing efforts on optimizing the oil-air lubrication system of this bearing.
Features:
- Achieves 40,000 min-1 with ISO-40 equivalent taper using oil-air lubrication.
- Noise levels reduced by approximately 3 dB to 5 dB in comparison with conventional oil-air lubrication.
- Achieves 40,000 min-1 with about half of the air volume of conventional oil-air lubrication.
Accommodate the need for high precision and ultra high-speed for shaft diameters of less than 25 mm.
Highly functional series that support the high performance requirements of compact spindles.
Features:
- Ultra high-speed bearings designed specifically for compact spindles.
- X-type with inner and outer rings that are made of excellent heat resistant and wear resistant SHX steel help high-speed applications achieve a long service life.
- High precision specifications are standard.
The TAC-F series of angular contact ball bearings is used to sustain axial loads and is focused on high rigidity.
Features:
- A contact angle of 50℃ that focuses on rigidity, and perfect for highly rigid spindles that operated under heavy-duty cutting applications.
- Inseparable design facilitates easier handling.
A Robust series of angular contact ball bearings for sustaining axial loads that achieves high-speed and high rigidity performance.
Features:
- The BTR series has a contact angle of 40° that features both high thrust rigidity and low heat generation properties.
- The BAR series has a contact angle of 30° that focuses on high-speed performance in comparison to the BTR series.
High corrosion-resistant bearings are applicable in corrosive environments such as water, weak acid and alkali, and strong acid and reactive gas. High corrosion-resistant bearings include stainless steel bearings, Molded-Oil? bearings, and corrosion-resistant coated bearings (Nickel coating) for water environments; ceramic bearings and ESZ bearings for weak acid and alkali environments; and ceramic bearings and the Aqua-Bearing™ for strong acid and reactive gas environments.
Product List
Stainless steel bearings, the standard products of the NSK SPACEA Series for special environments, are suitable for high-humidity environments.
Molded-oil bearings, made of stainless steel, are lubricated with NSK’s original oil-impregnated material, Molded-oil™, and are suitable for corrosive and dust-contaminated environments in normal atmosphere.
Hybrid bearings, combining ceramic balls and fluororesin self-lubricating cages, are suitable for corrosive environments from normal atmosphere up to vacuum.
Corrosion-resistant coated bearings (Nickel coating) are coated with a nickel coating on the outer and inner rings to enhance corrosion resistance and durability, and are suitable for corrosive environments such as normal atmosphere or high temperature.
ESZ Bearings have corrosion-resistant, and are superior to martensitic stainless steel.
The bearings are having corrosion resistance equal to precipitation hardening type stainless steel and the hardness is improved more than 30%.
The bearings are suitable for corrosive environment operating under atmospheric conditions.
With ceramic outer/inner rings and balls, all-ceramic bearings have self-lubricating fluororesin cages and are suitable for corrosive environments and non-magnetic requirement from normal atmosphere up to vacuum.
Aqua-bearing features a special fluororesin for outer/inner rings and cages equipped to meet a broad range of applications in water, alkali and strong acid environments. Aqua-bearing is suitable for corrosive environments exclusively in normal atmosphere.
Bearings for vacuum environments are basic products of the NSK SPACEA Series for special environments, which also includes bearings suitable for operating environments such as corrosive, clean, and high-temperature environments.
Product List
DL2 clean grease-packed stainless steel bearings are suitable for clean environments from normal atmosphere up to vacuum.
Hybrid bearings, combining ceramic balls and fluororesin self-lubricating cages, are suitable for corrosive environments from normal atmosphere up to vacuum.
DFO bearings feature a new innovation : V-DFO uses fluorine oil lubricant coating and E-DFO uses low vapor pressure hydrocarbon lubricant coating.
These bearings are suitable for use in clean environments from normal atmosphere up to vacuum.
YS high-temperature bearings with spacer joints made of an alloy-based self-lubricating material (sintered alloy) between balls. They are suitable for high-temperature and vacuum environments.
SJ high-temperature bearings with solid lubrication have a “peapod” structure, with solid lubricant spacer joints mounted between two balls in cage pockets. These bearings are suitable in vacuum, high-temperature environments.
With ceramic outer/inner rings and balls, all-ceramic bearings have self-lubricating fluororesin cages and are suitable for corrosive environments and non-magnetic requirement from normal atmosphere up to vacuum.
The SPACEA Series of bearings for clean-room applications aim for zero emissions. By taking advantage of proprietary technologies, applications for which the SPACEA Series of bearings can be used has been expanded to include high-temperature operating conditions in normal atmosphere and vacuum environments.
Product List
LG2/LGU clean grease-packed stainless steel bearings are suitable for clean environments in normal atmosphere at room temperature.
DL2 clean grease-packed stainless steel bearings are suitable for clean environments from normal atmosphere up to vacuum.
DFO bearings feature a new innovation : V-DFO uses fluorine oil lubricant coating and E-DFO uses low vapor pressure hydrocarbon lubricant coating.
These bearings are suitable for use in clean environments from normal atmosphere up to vacuum.
This rolling bearing, which is packed with fluorine grease for high-temperature operating conditions and uses MoS2 solid lubricant, can be used in high-temperature environments up to 400℃.
Product List
These high-temperature bearings are grease-packed with NSK’s long-life, high-temperature grease KPM, for use in normal atmosphere only.
YS high-temperature bearings with spacer joints made of an alloy-based self-lubricating material (sintered alloy) between balls. They are suitable for high-temperature and vacuum environments.
SJ high-temperature bearings with solid lubrication have a “peapod” structure, with solid lubricant spacer joints mounted between two balls in cage pockets. These bearings are suitable in vacuum, high-temperature environments.
Bearing is harder and more resistant to corrosion than conventional stainless steel or beryllium-copper alloys.
Product List
With ceramic outer/inner rings and balls, all-ceramic bearings have self-lubricating fluororesin cages and are suitable for corrosive environments and non-magnetic requirement from normal atmosphere up to vacuum.
Bearings are provided with ample lubrication for extended periods from oil seeping with a polyolefin resin for excellent performance in water and dust contaminated environments.
These rolling bearings are provided with self-lubricating molded oil, which provides ample lubrication from oil seeping from a polyolefin resin These bearings provide excellent performance in dust-contaminated environments. A stainless steel series of this bearing is also available for environments where there is heavy exposure to water contamination.
Product List
Molded-Oil bearings, lubricated with NSK’s own oil-impregnated material, are suitable in dust-contaminated environments; for use in normal atmosphere only.
