Cleanroom Bearings
Overview
Cleanroom bearings aim for zero particle emissions.
By applying NMT's unique technologies, our range of offerings excel across environments at atmospheric pressure, in vacuum, and with high temperatures.
Product List
LG2 and LGU grease-packed stainless steel bearings are suitable for cleanroom environments at atmospheric pressure with normal temperatures.
Features
- Low grease scatter and particle emissions
- Long life
Applications
- Cleanrooms
- Film manufacturing equipment
DL2 grease-packed stainless steel bearings are suitable for cleanroom environments at atmospheric pressure or in vacuum.
Features
- Low grease scatter and particle emissions
- Superior heat resistance
Specialized DL2 grease supports higher operating temperatures.
Applications
- Semiconductor manufacturing equipment
- Film manufacturing equipment
DFO bearings feature special lubrication coatings applied to the rings, balls, and cage to deliver superior cleanliness and long-life.
The E-DFO specification uses a low-vapor-pressure hydrocarbon lubricant coating, while V-DFO uses a fluorine oil lubricant coating.
These new-concept bearings are suited for cleanroom environments at atmospheric pressure and in vacuum.
Features
- Low particle emissions
Specialized cleanroom grease keeps generated particles low. - Low outgassing
Applications
- Semiconductor manufacturing equipment
- Organic electro-luminescence (OEL) manufacturing equipment
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.
