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Tapered roller bearing units
Tapered roller bearing units (TBUs) consist of two inner rings, one common outer ring, two tapered roller and polymer cage assemblies, a central spacer, grease fill and two sealing systems. In addition, further components like lateral spacers, backing rings and end caps with their locking device can be added to the assembly, based on a customer's request. TBUs are ready-to-mount units with a pre-defined axial clearance. The unit design offers bogie and vehicle suppliers and railway operators the advantage of a sealed and pre-lubricated unit that is easy to mount. The critical greasing procedure is moved from the wheelset workshop environment to the bearing production where greasing can be done in a very clean environment, using the right grease, grease quantity and distribution inside the bearing. The TBU design offers many options in regard to specific sizes and technical features like grease fill, sealing systems, etc. SKF offers a wide variety of TBU designs that are tailored for specific vehicle types.
• New material • Sensorization • Integrated functions for longer life • Bearing health and reliability
| Specification | Bearing Model | Dimensions(mm) | |||
| d | D | B | C | ||
| TBU 120x195x131.35 | 1639609 DE | 120 | 195 | 126 | 131.35 |
| TBU 130x230x150 | 197726 | 130 | 230 | 150 | 150 |
| TBU 130x230x160 | BT2-8546 | 130 | 230 | 150 | 160 |
| TBU 150x250x160 | 353130-2RS | 150 | 250 | 154.5 | 160 |
| CTBU 130x230x150 | BT2-8670-01 | 130 | 230 | 166.35 | 150 |
| CTBU 130x230x160 | BT2-8671 | 130 | 230 | 176.35 | 160 |
| CTBU 150x250x160 | 353130B | 150 | 250 | 180.6 | 160 |
| CTBU 150x250x160 | BT2-8720 BD | 150 | 250 | 180.6 | 160 |
| CTBU 150×260×160 | 150 | 260 | 180.6 | 160 | |
| CTBU 160×270×170 | 160 | 270 | 195 | 170 | |
| Class C 5” x 9” | 119.008 | 195.263 | 136.525 | 142.875 | |
| Class D 5 1/2” x 10” | BT2-8547 BB | 131.775 | 207.963 | 146.75 | 152.4 |
| Class E 6” x 11” | BT2-8516 BB | 144.475 | 220.663 | 155.575 | 163.51 |
| Class F 6 1/2” x 12” | BT2-8612 BB | 157.175 | 252.413 | 177.8 | 184.15 |
| CTBU Class K 6 1/2” x 9” | BT2-8606 | 157.175 | 250 | 180.6 | 160 |
| CTBU130X250X160 | TBU130X250X160 | ||||
| CTBU130X250/3 | TBU130X250/3 | ||||
353130-2RS Bearings for high speed railways.The bearings run at speeds above 200km/h and require high load carrying capacity. As the double row tapered roller bearings have a better sealing structure and the clearance has been adjusted before installation, this type of bearing is mostly used for high speed railways.
353130-2RS Bearings for locomotivesRailway locomotive bearing vehicle axle system due to different application conditions using different structures, locomotive passenger cars have axle box, bearing through the axle box and bogie connected. Generally use more cylindrical roller bearings.
353130-2RS Bearings for freight carsWheel pair bearings generally use more cylindrical roller bearings.
Underground bearingsGenerally for both sides with sealing device double row cylindrical bearings or two pairs of single side with sealing device single row cylindrical roller bearings, bearing pre-installed grease.
The reason for the choice of a specific bearing design can be quite different and depends on various criteria: • specific area/country/railway operator’s standards that have to be considered • field experience • established maintenance routines in the maintenance workshops • new vehicles equipped with existing bogie and bearing
Tapered roller bearing units
Tapered roller bearing units (TBUs) consist of two inner rings, one common outer ring, two tapered roller and polymer cage assemblies, a central spacer, grease fill and two sealing systems. In addition, further components like lateral spacers, backing rings and end caps with their locking device can be added to the assembly, based on a customer's request. TBUs are ready-to-mount units with a pre-defined axial clearance. The unit design offers bogie and vehicle suppliers and railway operators the advantage of a sealed and pre-lubricated unit that is easy to mount. The critical greasing procedure is moved from the wheelset workshop environment to the bearing production where greasing can be done in a very clean environment, using the right grease, grease quantity and distribution inside the bearing. The TBU design offers many options in regard to specific sizes and technical features like grease fill, sealing systems, etc. SKF offers a wide variety of TBU designs that are tailored for specific vehicle types.
• New material • Sensorization • Integrated functions for longer life • Bearing health and reliability
| Specification | Bearing Model | Dimensions(mm) | |||
| d | D | B | C | ||
| TBU 120x195x131.35 | 1639609 DE | 120 | 195 | 126 | 131.35 |
| TBU 130x230x150 | 197726 | 130 | 230 | 150 | 150 |
| TBU 130x230x160 | BT2-8546 | 130 | 230 | 150 | 160 |
| TBU 150x250x160 | 353130-2RS | 150 | 250 | 154.5 | 160 |
| CTBU 130x230x150 | BT2-8670-01 | 130 | 230 | 166.35 | 150 |
| CTBU 130x230x160 | BT2-8671 | 130 | 230 | 176.35 | 160 |
| CTBU 150x250x160 | 353130B | 150 | 250 | 180.6 | 160 |
| CTBU 150x250x160 | BT2-8720 BD | 150 | 250 | 180.6 | 160 |
| CTBU 150×260×160 | 150 | 260 | 180.6 | 160 | |
| CTBU 160×270×170 | 160 | 270 | 195 | 170 | |
| Class C 5” x 9” | 119.008 | 195.263 | 136.525 | 142.875 | |
| Class D 5 1/2” x 10” | BT2-8547 BB | 131.775 | 207.963 | 146.75 | 152.4 |
| Class E 6” x 11” | BT2-8516 BB | 144.475 | 220.663 | 155.575 | 163.51 |
| Class F 6 1/2” x 12” | BT2-8612 BB | 157.175 | 252.413 | 177.8 | 184.15 |
| CTBU Class K 6 1/2” x 9” | BT2-8606 | 157.175 | 250 | 180.6 | 160 |
| CTBU130X250X160 | TBU130X250X160 | ||||
| CTBU130X250/3 | TBU130X250/3 | ||||
353130-2RS Bearings for high speed railways.The bearings run at speeds above 200km/h and require high load carrying capacity. As the double row tapered roller bearings have a better sealing structure and the clearance has been adjusted before installation, this type of bearing is mostly used for high speed railways.
353130-2RS Bearings for locomotivesRailway locomotive bearing vehicle axle system due to different application conditions using different structures, locomotive passenger cars have axle box, bearing through the axle box and bogie connected. Generally use more cylindrical roller bearings.
353130-2RS Bearings for freight carsWheel pair bearings generally use more cylindrical roller bearings.
Underground bearingsGenerally for both sides with sealing device double row cylindrical bearings or two pairs of single side with sealing device single row cylindrical roller bearings, bearing pre-installed grease.
The reason for the choice of a specific bearing design can be quite different and depends on various criteria: • specific area/country/railway operator’s standards that have to be considered • field experience • established maintenance routines in the maintenance workshops • new vehicles equipped with existing bogie and bearing
