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BT2-8612 BB
KMY
AAR freight cars
The classic TBU design for American freight cars is following the enveloped size of Association of American Railroads (AAR) where initially the tapered roller bearings replaced plain bearings. This is the reason for a relatively long axle journal. SKF offers the inch size TBU design in two versions: • traditional inch size TBU design following the AAR specification • enhanced inch size TBU design with LL seals and special material selection for customers where AAR requirements are not compulsory For new freight cars with increased cargo, the inch size compact TBU class K is used. This SKF design is fitted with LL seals, and a polymer clip ring and is approved by AAR.
Chinese freight cars
SKF has developed special TBU designs for the Chinese freight car bogie designs to meet the Chinese Railways' standards. This special design is based on a TBU fitted with an LL seal on both sides, a polymer spacer and polymer cages. These TBU 130 x 230 x 150 are interchangeable with other TBUs in China. New generations of Chinese freight cars are designed for 80 t cargo and 120 km/h, compared to the previous generation of cars that were designed for 60 t cargo and 80 km/h. To meet these targets and to further improve operating safety, the Chinese Ministry of Railways has selected SKF as a technology partner. The new bogies for freight cars are equipped with a special execution of CTBU 150 x 250 x 160 size
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 |
AAR freight cars
The classic TBU design for American freight cars is following the enveloped size of Association of American Railroads (AAR) where initially the tapered roller bearings replaced plain bearings. This is the reason for a relatively long axle journal. SKF offers the inch size TBU design in two versions: • traditional inch size TBU design following the AAR specification • enhanced inch size TBU design with LL seals and special material selection for customers where AAR requirements are not compulsory For new freight cars with increased cargo, the inch size compact TBU class K is used. This SKF design is fitted with LL seals, and a polymer clip ring and is approved by AAR.
Chinese freight cars
SKF has developed special TBU designs for the Chinese freight car bogie designs to meet the Chinese Railways' standards. This special design is based on a TBU fitted with an LL seal on both sides, a polymer spacer and polymer cages. These TBU 130 x 230 x 150 are interchangeable with other TBUs in China. New generations of Chinese freight cars are designed for 80 t cargo and 120 km/h, compared to the previous generation of cars that were designed for 60 t cargo and 80 km/h. To meet these targets and to further improve operating safety, the Chinese Ministry of Railways has selected SKF as a technology partner. The new bogies for freight cars are equipped with a special execution of CTBU 150 x 250 x 160 size
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 |