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Support roller, also called yoke type track roller, is a single-row or double-row bearing unit mounted on a shaft or bolt. Yoke type track rollers consist of a thicker outer ring with a specific outer surface profile and needle roller and cage assembly or full complement of needle rollers and full complement of cylindrical rollers. The type of supporting roller includes with inner ring or without inner ring, double side seal or open type and so on.
Series And Varients Of THB Support Roller Bearings
Types of THB Yoke Type Track Rollers
THB can provide you with the following types of supported roller bearings: RSTO/STO/RNA/NA/NATR/NATV/NUTR/PWTR/NNTR.
If you need customized products, you can also contact THB.
Size Range of THB Yoke Type Track Rollers
The size range of NATR/NATV: inner diameter 5-50mm, outer diameter 16-90mm, width 12-32mm
The size range of NUTR/PWTR: inner diameter 15-50mm, outer diameter 35-110mm, width 19-32mm
The size range of NNTR: inner diameter 50-130mm, 130-310mm, 65-146mm
Needle roller Yoke type track rollers bearing, Without axial guidance, With cage.
Cylindrical roller Yoke type track rollers bearing, With axial guidance, With Labyrinth seals, Double row-Full complement cylindrical rollers.
||Basic load rating
Technical Information of THB Support Roller Bearings
support roller can operate at temperatures of -30 °C to +140 °C. For the bearings with seals (suffix 2RS and 2RSR) and nylon retainers (suffix TV), the working temperature is within -30°C to +120 °C. Due to restrictions on the selected grease and seal materials, NATR... -PP and NATV... -PP is suitable for use under the working temperature of -30 °C to +100 °C.
If you need special products beyond the standard working temperature, please contact THB technical department.
Among the Yoke Type Track Rollers, except for the STO series in open structure without sealing, the other series have different sealing structures depending on the product series. See the parameter sheet for the sealing types.
|2RS||Lip seal on both sides of the yoke type track roller.|
|2Z||Metal shield on both sides of the track roller bearing.|
|2RSR||Radical contact lip seal on both sides of the yoke type track roller bearing.|
|2ZL||Sealing shield with lamellar rings on both sides of the track roller bearing.|
Prior to delivery, the yoke type track rollers have been filled with lithium-based grease so that they can be re-lubricated through the inner ring or using equivalent grease.
For special lubrication materials, please contact THB technical department.