Chongqing Hengtairail Equipment Co.,Ltd.
Global Rolling Stock Parts Supplier
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Product overview
Adaptor is an important part of railway car bogie accessories. During the operation of the vehicle, the bearing adapter bears the pressure from the vehicle body and the torsional force during the rotation of the vehicle body. The bearing adapter plays an important role, which is specifically installed between the rolling bearing of the truck and the side frame guide frame of the bogie, bearing and transmitting various loads, and its processing quality will directly affect the safe and smooth operation of the vehicle.
Product specification
| S.No. | Item | Value |
| 1 | Type | adaptor |
| 2 | Application | railway freight car, railway wagon |
| 3 | Standard | TB/T 3267-2011, AAR M-924 |
| 4 | Size | 336 х 266 х 147 mm (LхWхH) |
| 5 | Material | Carbon steel ZG230-450 |
Product advantages
· Test and approved AAR designs
· Available in a variety of size and heat treat specifications.
· Fits standard AAR pedestals
Technical parameters
| No. | Axle load/T | Adapting Surface Annulus Diameter mm | Innersider Distance of Thrust Guard Shoulder mm | Height of Thrust Guard Shoulder
mm | Deep Difference Between Depth of Pedestal mm | Thick Difference Between Roof mm |
| 1 | 21 | φ230 | 153 | 10 | ≤3 | ≤0.3 |
| 2 | 25 | φ250 | 163 | 10 | ≤3 | ≤0.3 |
| 3 | 30 | φ270 | 173 | 10 | ≤3 | ≤0.3 |
Product Type
| Type of standard AAR adapter | ||||
| Class | Size(in.) | Item No. | Material | Production method |
| C | 5*9 | 5 x 9N | ASTN A220 Grade 5005 | Casting |
| 5 x 9NC | ||||
| 5 x 9NT | ||||
| 5 x 9NCT | ||||
| D | 5 1/2*10 | 5 1/2 x10N | ASTM A148 Grade 40-80 | |
| 5 1/2 x10NC | ||||
| 5 1/2 x10NT | ||||
| 5 1/2 x10NCT | ||||
| E | 6*11 | 6x11N | ASTM A536 Grade 80-55-06 | |
| 6x11NC | ||||
| 6x11NT | ||||
| 6x11NCT | ||||
| F | 6 1/2*12 | 6 1/2 x12N | ASTM A236 Grade c | Forging |
| 6 1/2 x12NC | ||||
| 6 1/2 x12NT | ||||
| 6 1/2 x12NCT | ||||
| K | 6 1/2*9 | 6 1/2x9N | AAR M126 Grade c | |
| 6 1/2x9NC | ||||
| 6 1/2x9NT | ||||
| 6 1/2x9NCT | ||||
| G | 7*12 | 7x12N | ||
| 7x12NC | ||||
| 7x12NT | ||||
| 7x12NCT | ||||
| Note | ||||
| N narrow type | ||||
| C The top surface of circular arc quenching | ||||
| T Thrust stop shoulder surface hardening | ||||
| CT The top surface of circular arc and thrust stop shoulder surface hardening | ||||
Product Structure
Product Application
Product test