Screw-down-bearings

PMK Screw Down Bearings are robust axial-radial bearing assemblies designed for high load and shock conditions typically encountered in rolling mills.
These bearings support high compressive forces during metal forming operations, providing excellent axial rigidity and load stability. The design ensures uniform load distribution and long service life even under fluctuating pressure and vibration.
Key benefits
- Extremely high axial and radial load capacity.
- Designed specifically for screw-down mechanisms in rolling mills.
- Rigid construction ensures stability under shock loads.
- High resistance to wear and fatigue for long operating life.
- Optimized internal geometry for uniform stress distribution.
Applications
- Steel and non-ferrous metal rolling mills.
- Heavy press machinery and forging systems.
- Screw-down systems for plate and sheet rolling.
- Industrial machinery requiring very high axial stiffness.
Specifications

| Boundary dimensions (mm) | Basic load ratings (kN) Coa | Designations | Mass (kg) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | D1 | d1 | T | R | M1 | M2 | rmin | Current | Original | ||
| 150 | 148 | 127 | 48 | 228.6 | M12 | - | 1.5 | 1630 | TTSV150 | 4297/150 | 5 |
| 175 | 173 | 152 | 53 | 228.6 | M12 | - | 1.5 | 2180 | TTSV175 | 4297/175 | 8 |
| 203 | 201 | 178 | 65 | 254 | M12 | - | 1.5 | 2540 | TTSV203 | 4297/203 | 11 |
| 205 | 203 | 178 | 65 | 254 | M20 | - | 1.5 | 3370 | TTSV205 | 4297/205 | 15 |
| 235 | 233 | 208 | 73 | 280 | M20 | - | 1.5 | 3370 | TTSV235 | 4297/235 | 18 |
| 265 | 263 | 229 | 81 | 304.8 | M20 | - | 1.5 | 4130 | TTSV265 | 4297/265 | 24 |
| 320 | 318 | 280 | 95 | 380 | M24 | - | 1.5 | 7370 | TTSV320 | 4297/320 | 42 |
| 377 | 375 | 330 | 112 | 457.2 | M24 | - | 2.5 | 8230 | TTSV377 | 4297/377 | 86 |
| 380 | 378 | 330 | 112 | 457.2 | M24 | M30 | 2.5 | 8220 | TTSV380 | 4297/380 | 67 |
| 410 | 408 | 355 | 122 | 508 | M24 | M30 | 3 | 11300 | TTSV410 | 4297/410 | 115 |
| 440 | 438 | 380 | 130 | 508 | M24 | M36 | 3 | 18500 | TTSV440 | 4297/440 | 140 |
| 495 | 492 | 432 | 146 | 558.8 | M24 | M36 | 3 | 19100 | TTSV495 | 4297/495 | 198 |
| 525 | 522 | 460 | 155 | 635 | M24 | M36 | 3 | 20380 | TTSV525 | 4297/525 | 210 |
| 555 | 552 | 482 | 165 | 635 | M24 | M36 | 3 | 21380 | TTSV555 | 4297/555 | 275 |
| 580 | 577 | 510 | 165 | 710 | M24 | M42 | 3 | 23540 | TTSV580 | 4297/580 | 250 |
| 610 | 607 | 533 | 178 | 762 | M30 | M42 | 3 | 24170 | TTSV610 | 4297/610 | 350 |
| 640 | 637 | 550 | 185 | 762 | M30 | M42 | 3 | 28670 | TTSV640 | 4297/640 | 410 |
| 150 | 148 | 127 | 55 | 457.2 | M12 | - | 1.5 | 1630 | TTSX150 | 4379/150 | 7 |
| 175 | 173 | 152 | 62 | 457 | M12 | - | 1.5 | 2180 | TTSX175 | 4379/175 | 11 |
| 205 | 203 | 178 | 76 | 508 | M20 | - | 1.5 | 2540 | TTSX205 | 4379/205 | 18 |
| 235 | 233 | 208 | 85 | 560 | M20 | - | 1.5 | 3370 | TTSX235 | 4379/235 | 26 |
| 265 | 263 | 229 | 95 | 609.6 | M20 | - | 1.5 | 4130 | TTSX265 | 4379/265 | 37 |
| 320 | 318 | 280 | 112 | 762 | M20 | - | 2.5 | 7370 | TTSX320 | 4379/320 | 62 |
| 380 | 378 | 330 | 129 | 914.4 | M24 | M30 | 1.5 | 8550 | TTSX380 | 4379/380 | 101 |
| 410 | 408 | 355 | 142 | 1016 | M24 | M30 | 3 | 11300 | TTSX410 | 4379/410 | 130 |
| 440 | 438 | 380 | 152 | 1016 | M24 | M36 | 3 | 18500 | TTSX440 | 4379/440 | 160 |
| 495 | 492 | 432 | 172 | 1066.8 | M24 | M36 | 3 | 19100 | TTSX495 | 4379/495 | 210 |
| 525 | 522 | 460 | 180 | 1270 | M24 | M36 | 3 | 20380 | TTSX525 | 4379/525 | 250 |
| 555 | 552 | 482 | 192 | 1270 | M24 | M36 | 3 | 21380 | TTSX555 | 4379/555 | 280 |
| 580 | 577 | 510 | 195 | 1422.4 | M24 | M36 | 3 | 21540 | TTSX580 | 4379/580 | 310 |
| 610 | 607 | 533 | 205 | 1520 | M30 | M42 | 3 | 24170 | TTSX610 | 4379/610 | 410 |
| 640 | 637 | 550 | 214.8 | 1740 | M30 | M42 | 3 | 28670 | TTSX640 | 4379/640 | 450 |
| 710 | 705 | 610 | 250 | 1600 | M30 | M42 | 4 | 31540 | TTSX710 | 4379/710 | 850 |
| 750 | 745 | 650 | 260 | 1600 | M30 | M48 | 4 | 38430 | TTSX750 | 4379/750 | 750 |
| 800 | 795 | 700 | 270 | 1700 | M30 | M48 | 5 | 40150 | TTSX800 | 4379/800 | 930 |
* Specifications subject to change. Contact us for the latest datasheet and custom configurations.
* Refer Disclaimer policy for more details.
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