Double Direction Tapered Roller Thrust Bearing

PMK Double Direction Tapered Roller Thrust Bearings are constructed to accommodate axial loads in both directions. Their opposing tapered roller arrangement provides accurate axial location and rigidity under reversing thrust conditions.
These bearings are well suited for applications where bidirectional axial stability and high axial load capacity are required.
Key benefits
- Handles axial loads in both directions with high stiffness.
- Excellent rigidity for accurate axial guidance.
- Optimized roller geometry for uniform load sharing.
- Low friction, long service life, and high reliability.
- Separable construction for easier mounting and inspection.
Applications
- Rolling mills and heavy machinery.
- Vertical spindles and transmission systems.
- Turbines, presses, and marine propulsion shafts.
- Gear drives with reversing axial loads.
Specifications

| Boundary Dimensions (mm) | Basic Load Ratings (kN) | Designations | Mass (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| d | d1min | D | T | r1, 2 | r3, 4 | Ca | Coa | Current | Original | |
| 170 | 184 | 240 | 84 | 0.6 | 2 | 380 | 1390 | 350980C | 419234 | 12.5 |
| 180 | 196 | 280 | 90 | 1 | 2 | 580 | 2900 | 353162 | 419736 | 21 |
| 220 | 236 | 300 | 96 | 0.6 | 2 | 450 | 1800 | 351019C | 419244 | 19.5 |
| 250 | 275 | 380 | 100 | 0.6 | 2 | 982 | 4850 | 353005 | 419950 | 45 |
| 260 | 285 | 360 | 92 | 1 | 2 | 716 | 5600 | 350981C | 419952 | 26.6 |
| 270 | 310 | 450 | 180 | 2 | 5 | 1870 | 6400 | 351164C | 419954 | 111 |
| 320 | 355 | 440 | 108 | 1.1 | 3 | 990 | 4700 | 353102 | 419264 | 48 |
| 350 | 390 | 490 | 130 | 1.1 | 3 | 1220 | 5730 | 351100C | 419970 | 73.5 |
| 440 | 490 | 645 | 167 | 3 | 4 | 1980 | 10800 | 353152 | 419788 | 190 |
| 450 | 490 | 645 | 155 | 4 | 4 | 1980 | 10800 | 350916D | 419990 | 170 |
| 470 | 535 | 720 | 200 | 2 | 4 | 3450 | 1800 | 353151 | 419994 | 305 |
| 530 | 575 | 710 | 218 | 2 | 3 | 2540 | 11400 | 351475C | 4199/530 | 245 |
* Boundary dimensions are compliant with standard series.
* Specifications subject to change. Contact us for the latest datasheet and custom configurations.
* Refer Disclaimer policy for more details.
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