New Product Info
NTN “ULTAGE WA Type” Sealed Spherical Roller Bearing(Jan 21,2011)
NTN Corporation (hereafter NTN) has broadened its product line by commercializing the new “ULTAGE WA type” sealed spherical roller bearing as part of the “ULTAGE Series” of spherical roller bearings*.
Spherical roller bearings have a high load capacity and are used in a wide variety of systems including construction machinery, steel, mining, wind power, and paper manufacturing machinery. In addition to high load capacity, there has been a need for measures to prevent foreign matter infiltration particularly in the case where the bearings are used in a hostile environment, such as outdoors or where there is dust.
The newly developed “ULTAGE WA type” sealed spherical roller bearing provides a thin, specially-designed contact seal for the ULTAGE EA type open spherical roller bearing which has attained one of the world's highest load capacities, and thereby ensures a more compact bearing width dimension and stable sealing performance. Furthermore, long-life, heavy-load compatible grease is enclosed inside the bearing, thus eliminating the need for cleaning at bearing installation. This enables the long-life, high-reliability, improved maintainability, greater compactness and improved performance for environmental sustainability which are required of all types of industrial machinery.
NTN has previously provided sealed spherical roller bearings on a case-by-case basis to meet customer needs due to customer selection of a seal, but now NTN will be globally marketing a line of “ULTAGE spherical roller bearings (EA type, EM type and WA type)” which adds sealed spherical roller bearings to the standard lineup of the “ULTAGE Series” with high load capacity.
*) June 10, 2009 press release: Standardization of High speed, Longer life New Spherical Roller Bearing “ULTAGE Series”
NTN Catalog: CAT. No. 3033/E “ULTAGE Spherical Roller Bearings [EA type, EM type]”
[ Features ]
1. One of the world's highest load capacities
· Uses internal design of open “ULTAGE EA type” which is currently on sale
2. Employs thin special seal. Compact bearing design
· Thin seal cross-section design : Designed for minimal increase in bearing width dimension due to providing seal
(Ex.: Basic no. 22218EA: Width dimension increase of 20% (40→48mm))
· Specially-designed contact rubber seal : Prevents foreign matter infiltration and ensures stable dust-resistance by ensuring uniform seal contact pressure in response to bearing alignment
3. Standard model employs long-life, heavy-load compatible grease
· An appropriate amount of grease is initially enclosed inside the bearing, and cleaning is unnecessary when installing the bearing
[ Applications ]
· Raw material transport conveyors (e.g., steel plants, thermal power plants, mines)
· Parts with a risk of salt damage (e.g., transport equipment at ports etc., and construction equipment)
[ Contact ]
Industrial Engineering Dept., Industrial Business HQ Tel. +81-594-24-3829
[ Structure ]
NTN Corporation (hereafter NTN) has broadened its product line by commercializing the new “ULTAGE WA type” sealed spherical roller bearing as part of the “ULTAGE Series” of spherical roller bearings*.
Spherical roller bearings have a high load capacity and are used in a wide variety of systems including construction machinery, steel, mining, wind power, and paper manufacturing machinery. In addition to high load capacity, there has been a need for measures to prevent foreign matter infiltration particularly in the case where the bearings are used in a hostile environment, such as outdoors or where there is dust.
The newly developed “ULTAGE WA type” sealed spherical roller bearing provides a thin, specially-designed contact seal for the ULTAGE EA type open spherical roller bearing which has attained one of the world's highest load capacities, and thereby ensures a more compact bearing width dimension and stable sealing performance. Furthermore, long-life, heavy-load compatible grease is enclosed inside the bearing, thus eliminating the need for cleaning at bearing installation. This enables the long-life, high-reliability, improved maintainability, greater compactness and improved performance for environmental sustainability which are required of all types of industrial machinery.
NTN has previously provided sealed spherical roller bearings on a case-by-case basis to meet customer needs due to customer selection of a seal, but now NTN will be globally marketing a line of “ULTAGE spherical roller bearings (EA type, EM type and WA type)” which adds sealed spherical roller bearings to the standard lineup of the “ULTAGE Series” with high load capacity.
*) June 10, 2009 press release: Standardization of High speed, Longer life New Spherical Roller Bearing “ULTAGE Series”
NTN Catalog: CAT. No. 3033/E “ULTAGE Spherical Roller Bearings [EA type, EM type]”
[ Features ]
1. One of the world's highest load capacities
· Uses internal design of open “ULTAGE EA type” which is currently on sale
2. Employs thin special seal. Compact bearing design
· Thin seal cross-section design : Designed for minimal increase in bearing width dimension due to providing seal
(Ex.: Basic no. 22218EA: Width dimension increase of 20% (40→48mm))
· Specially-designed contact rubber seal : Prevents foreign matter infiltration and ensures stable dust-resistance by ensuring uniform seal contact pressure in response to bearing alignment
3. Standard model employs long-life, heavy-load compatible grease
· An appropriate amount of grease is initially enclosed inside the bearing, and cleaning is unnecessary when installing the bearing
[ Applications ]
· Raw material transport conveyors (e.g., steel plants, thermal power plants, mines)
· Parts with a risk of salt damage (e.g., transport equipment at ports etc., and construction equipment)
[ Contact ]
Industrial Engineering Dept., Industrial Business HQ Tel. +81-594-24-3829
[ Structure ]
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