High-Temperature Bearings
Overview
High temperature bearings use specialized lubricants to stand up to intense heat.
Grease-packed bearings are pre-filled with fluorine grease for high temperatures, while YS and SJ bearings use molybdenum disulfide (MoS2) solid lubricant to withstand temperatures up to 350°C and 400°C respectively.
Product List
KPM-grease packed bearings come pre-filled with NSK's long-life, high-temperature KPM grease for use at atmospheric pressure.
Features
- Long life
Specialized fluorine grease combined with NSK's unique additives extend bearing life. - Suited for high temperatures
KPM grease-packed bearings withstand temperatures up to 230°C at atmospheric pressure.
Applications
- Transport/conveyance equipment in furnaces
- High-temperature components in office equipment
YS bearings with spacer joints use an alloy-based self-lubricating material (sintered alloy) between the balls to stand up to high-temperature vacuum environments.
Features
- Suited for high-temperature vacuum
YS bearings stand up to vacuum environments with temperatures up to 350°C. - Long life
Solid lubricant spacers lubricate the bearing and extend life.
Applications
- Ion implanters
- Sputtering equipment
SJ bearings have a “peapod” structure, with solid lubricant spacer joints mounted between two rolling balls in a single cage pocket, making them suited for high-temperature environments at atmospheric pressure or in vacuum.
Features
- Suited for high temperatures
SJ bearings withstand temperatures up to 400°C in both atmospheric pressure and vacuum environments. - Long life
FAQs
Loads are defined by their direction. Loads perpendicular to the shaft are called radial loads and loads parallel to the shaft are called axial (thrust) loads.
While DGBBs can handle axial loads in both directions, single-row angular contact ball bearings can only receive axial load in one direction.
Seals and shields offer additional protection for bearing components and help to improve and maintain lubrication. In terms of sealing performance, sealed bearings rank best, followed by shielded bearings, then finally open bearings. NMT uses supplementary designations D, DU, DW, and V (DD, DDU, DDW, VV) for sealed bearings and Z (ZZ) for shielded bearings. No supplementary designations are listed for open bearings.
