Crossed Cylindrical Roller Slewing Bearings (External Gears)

PMK Crossed Cylindrical Roller Slewing Bearings with External Gear are engineered for heavy-duty rotation with integrated external gearing for power transmission. They deliver high torque, precise positioning and smooth motion in compact assemblies.
Key benefits
- External gear integration simplifies rotary drive design and power transmission.
- High torque transmission and positioning accuracy.
- Excellent rigidity and vibration resistance from crossed-roller construction.
- Compact combined bearing-and-gear solution for limited-space assemblies.
- Suitable for both continuous and intermittent rotation under load.
Applications
- Construction equipment and crane slewing drives.
- Turntables, automation systems, and wind-drive assemblies.
- Industrial robots and rotary manipulators.
- Machine tool indexing tables and large rotating structures.
Specifications

| Boundary dimensions (mm) | Mount dimensions (mm) | Structure dimensions (mm) | Gear constants (mm) | Designations | Basic load ratings (kN) Coa | Mass (kg) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | H | D1 | D2 | n1 | n2 | φ1 | φ2 | D3 | d1 | H1 | h | n3 | φ3 | m | Da | Z | b | x | |||
| 398 | 602 | 75 | 566 | 434 | 20 | 20 | 18 | 18 | 499 | 501 | 65 | 10 | 4 | M10×1 | 5 | 630 | 123 | 60 | 0.5 | 111.25.500.** | 1040 | 80 |
| 499 | 501 | 65 | 10 | 4 | M10×1 | 6 | 630 | 120 | 60 | 0.5 | 112.25.500.** | 1040 | 80 | |||||||||
| 458 | 662 | 75 | 626 | 494 | 20 | 20 | 18 | 18 | 558.5 | 561.5 | 65 | 10 | 4 | M10×1 | 5 | 690 | 135 | 60 | 0.5 | 111.25.560.** | 1160 | 90 |
| 558.5 | 561.5 | 65 | 10 | 4 | M10×1 | 6 | 690 | 112 | 60 | 0.5 | 112.25.560.** | 1160 | 90 | |||||||||
| 528 | 732 | 75 | 696 | 564 | 24 | 24 | 18 | 18 | 628.5 | 631.5 | 65 | 10 | 4 | M10×1 | 6 | 774 | 126 | 60 | 0.5 | 111.25.630.** | 1300 | 100 |
| 628.5 | 631.5 | 65 | 10 | 4 | M10×1 | 8 | 776 | 94 | 60 | 0.5 | 112.25.630.** | 1300 | 100 | |||||||||
| 608 | 812 | 75 | 776 | 644 | 24 | 24 | 18 | 18 | 708.5 | 711.5 | 65 | 10 | 4 | M10×1 | 6 | 852 | 139 | 60 | 0.5 | 111.25.710.** | 1490 | 110 |
| 708.5 | 711.5 | 65 | 10 | 4 | M10×1 | 8 | 856 | 104 | 60 | 0.5 | 112.25.710.** | 1490 | 110 | |||||||||
| 678 | 922 | 82 | 878 | 722 | 30 | 30 | 22 | 22 | 798.5 | 801.5 | 72 | 10 | 6 | M10×1 | 8 | 968 | 118 | 65 | 0.5 | 111.28.800.** | 1850 | 170 |
| 778 | 1022 | 82 | 978 | 822 | 30 | 30 | 22 | 22 | 898.5 | 901.5 | 72 | 10 | 6 | M10×1 | 8 | 1064 | 130 | 65 | 0.5 | 111.28.900.** | 2090 | 190 |
| 878 | 1122 | 82 | 1078 | 922 | 36 | 36 | 22 | 22 | 998.5 | 1001.5 | 72 | 10 | 6 | M10×1 | 10 | 1190 | 116 | 65 | 0.5 | 111.28.1000.** | 2330 | 210 |
| 998 | 1242 | 82 | 1198 | 1042 | 36 | 36 | 22 | 22 | 1118 | 1122 | 72 | 10 | 6 | M10×1 | 10 | 1300 | 127 | 65 | 0.5 | 111.28.1120.** | 2620 | 230 |
| 1110 | 1390 | 91 | 1337 | 1163 | 40 | 40 | 26 | 26 | 1248 | 1252 | 81 | 10 | 6 | M10×1 | 12 | 1452 | 118 | 75 | 0.5 | 111.32.1250.** | 3210 | 350 |
| 1260 | 1540 | 91 | 1487 | 1313 | 40 | 40 | 26 | 26 | 1398 | 1402 | 81 | 10 | 6 | M10×1 | 12 | 1608 | 131 | 75 | 0.5 | 111.32.1400.** | 3580 | 400 |
| 1460 | 1740 | 91 | 1687 | 1513 | 45 | 45 | 26 | 26 | 1598 | 1602 | 81 | 10 | 8 | M10×1 | 14 | 1820 | 127 | 75 | 0.5 | 111.32.1600.** | 4120 | 440 |
| 1660 | 1940 | 91 | 1887 | 1713 | 45 | 45 | 26 | 26 | 1798 | 1802 | 81 | 10 | 8 | M10×1 | 14 | 2016 | 141 | 75 | 0.5 | 111.32.1800.** | 4600 | 500 |
| 1825 | 2178 | 112 | 2110 | 1891 | 48 | 48 | 33 | 33 | 1998 | 2002 | 100 | 12 | 8 | M10×1 | 16 | 2272 | 139 | 90 | 0.5 | 111.40.2000.** | 6860 | 900 |
| 2065 | 2418 | 112 | 2350 | 2131 | 48 | 48 | 33 | 33 | 2237.5 | 2242.5 | 100 | 12 | 8 | M10×1 | 16 | 2496 | 153 | 90 | 0.5 | 111.40.2240.** | 7640 | 1000 |
| 2325 | 2678 | 112 | 2610 | 2391 | 56 | 56 | 33 | 33 | 2497.5 | 2502.5 | 100 | 12 | 8 | M10×1 | 18 | 2772 | 151 | 90 | 0.5 | 111.40.2500.** | 7970 | 876 |
| 2625 | 2978 | 112 | 2910 | 2691 | 56 | 56 | 33 | 33 | 2797.5 | 2802.5 | 100 | 12 | 8 | M10×1 | 18 | 3078 | 168 | 90 | 0.5 | 111.40.2800.** | 9600 | 1250 |
| 2922 | 3376 | 134 | 3286 | 3014 | 56 | 56 | 45 | 45 | 3147.5 | 3152.5 | 122 | 12 | 8 | M10×1 | 20 | 3480 | 171 | 110 | 0.5 | 111.50.3150.** | 13800 | 2150 |
| 3147.5 | 3152.5 | 122 | 12 | 8 | M10×1 | 22 | 3476 | 155 | 110 | 0.5 | 112.50.3150.** | 13800 | 2150 | |||||||||
| 3322 | 3776 | 134 | 3686 | 3414 | 56 | 56 | 45 | 45 | 3547.5 | 3552.5 | 122 | 12 | 8 | M10×1 | 20 | 3880 | 191 | 110 | 0.5 | 111.50.3550.** | 15700 | 2470 |
| 3547.5 | 3552.5 | 122 | 12 | 8 | M10×1 | 22 | 3894 | 174 | 110 | 0.5 | 112.50.3550.** | 15700 | 2470 | |||||||||
| 3548 | 3552 | 122 | 12 | 8 | M10×1 | 20 | 3880 | 191 | 110 | 0.5 | 111.52.3550.12 | 14750 | 2464 | |||||||||
| 3772 | 4226 | 134 | 4136 | 3864 | 60 | 60 | 45 | 45 | 3997.5 | 4002.5 | 122 | 12 | 10 | M10×1 | 22 | 4334 | 194 | 110 | 0.5 | 111.50.4000.** | 17600 | 2800 |
| 3997.5 | 4002.5 | 122 | 12 | 10 | M10×1 | 25 | 4350 | 171 | 110 | 0.5 | 112.50.4000.** | 17600 | 2800 | |||||||||
| 4272 | 4726 | 134 | 4636 | 4364 | 60 | 60 | 45 | 45 | 4497.5 | 4502.5 | 122 | 12 | 10 | M10×1 | 22 | 4940 | 217 | 110 | 0.5 | 111.50.4500.** | 19800 | 3100 |
| 4497.5 | 4502.5 | 122 | 12 | 10 | M10×1 | 25 | 4850 | 191 | 110 | 0.5 | 112.50.4500.** | 19800 | 3100 | |||||||||
* Specifications subject to change. Contact us for the latest datasheet and custom configurations.
* Refer Disclaimer policy for more details.
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