Crossed Cylindrical Roller Slewing Bearings (Gears)
PMK Crossed Cylindrical Roller Slewing Bearings are precision bearings designed to support high radial, axial, and moment loads in a single compact assembly. The crossed arrangement of cylindrical rollers ensures high rigidity and uniform load distribution, making them ideal for precision rotation systems.
Key benefits
- High load capacity in all directions (radial, axial, moment).
- Compact design for limited installation space.
- High rigidity and rotational accuracy from crossed roller arrangement.
- Smooth motion with low friction and minimal clearance.
- Maintenance-friendly separable ring construction; optional gear integration.
Applications
- Industrial robots and automation systems.
- Precision rotary tables and machine tool heads.
- Radar antennas and optical equipment.
- Packaging, indexing, and positioning systems.
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 | 365 | 74 | 60 | 0.5 | 113.25.500.** | 1040 | 80 |
| 695 | 920 | 90 | 870 | 735 | 30 | 30 | 18 | 18 | 800 | 804 | 76 | 4 | 3 | 10 | 7 | 658 | 96 | 65 | 0 | 2797/695G2 | 1610 | 175 |
| 760 | 1000 | 95 | 956 | 800 | 24 | 24 | 20 | 20 | 878 | 882 | 82 | 15 | 4 | M10×1 | 8 | 718.18 | 91 | 70 | 0.35 | 2797/760G2 | 2370 | 206 |
| 778 | 1022 | 82 | 978 | 822 | 30 | 30 | 22 | 22 | 898.5 | 901.5 | 72 | 10 | 6 | M10×1 | 8 | 736 | 93 | 65 | 0.5 | 113.28.900.** | 2090 | 190 |
| 870 | 1180 | 115 | 1125 | 920 | 18 | 18 | 26 | 26 | 1023 | 1027 | 100 | 15 | 2 | M8×1 | 8 | 828.8 | 105 | 90 | 0.3 | 2797/870G2 | 2920 | 374 |
| 875 | 1170 | 95 | 1120 | 930 | 24 | 24 | 22 | 22 | 1018 | 1022 | 82 | 15 | 4 | M10×1 | 8 | 830.1 | 105 | 70 | 0.35 | 2797/875G2 | 2760 | 297 |
| 1278 | 1660 | 120 | 1535 | 1335 | 18 | 18 | 26 | 26 | 1428 | 1432 | 105 | 15 | 4 | M10×1 | - | - | - | - | - | 797/1278G2K | 4270 | 589 |
| 1370 | 1840 | 160 | 1770 | 1430 | 30 | 24 | 28 | 28 | 1598 | 1602 | 140 | 10 | 4 | M10×1 | - | - | - | - | - | 797/1370G | 9970 | 1213 |
| 1380 | 1700 | 145 | 1650 | 1440 | 24 | 24 | 27 | 27 | 1568 | 1574 | 140 | 5 | 6 | M10×1 | - | - | - | - | - | 797/1380G2 | 4610 | 746 |
| 1600 | 2140 | 145 | 1940 | 1710 | 48 | 48 | 26 | 26 | 1828 | 1832 | 135 | 10 | 4 | M10×1 | - | - | - | - | - | 797/1600G | 8960 | 1357 |
| 1776 | 2210 | 150 | 2105 | 1840 | 36 | 36 | 26 | 26 | 1968 | 1972 | 135 | 15 | 4 | M10×1 | - | - | - | - | - | 797/1776G2 | 11130 | 1244 |
| 1860 | 2320 | 151 | 2245 | 1980 | 42 | 42 | 33 | 33 | 2113 | 2117 | 150 | 10 | 6 | M10×1 | - | - | - | - | - | 797/1860G2 | 8900 | 1772 |
| 2190 | 2860 | 300 | 2800 | 2270 | 36 | 36 | 32 | 32 | 2530 | 2550 | 260 | 40 | 12 | 8 | - | - | - | - | - | 797/2190G | 30350 | 4797 |
| 2500 | 2980 | 180 | 2910 | 2590 | 48 | 48 | 33 | 33 | 2739 | 2743 | 170 | 10 | 6 | M16×1.5 | - | - | - | - | - | 797/2500G2 | 17600 | 2913 |
| 2800 | 3310 | 190 | 3220 | 2890 | 60 | 60 | 39 | 39 | 3050 | 3060 | 165 | 25 | 2 | M10×1 | - | - | - | - | - | 792/2800G | 21170 | 2864 |
| 2922 | 3376 | 134 | 3286 | 3014 | 56 | 56 | 45 | 45 | 3147.5 | 3152.5 | 122 | 12 | 8 | M10×1 | - | - | - | - | - | 110.50.3150.** | 13800 | 2150 |
| 3322 | 3776 | 134 | 3686 | 3414 | 56 | 56 | 45 | 45 | 3547.5 | 3552.5 | 122 | 12 | 8 | M10×1 | - | - | - | - | - | 110.50.3550.** | 15700 | 2470 |
| 3772 | 4226 | 134 | 4136 | 3864 | 60 | 60 | 45 | 45 | 3997.5 | 4002.5 | 122 | 12 | 10 | M10×1 | - | - | - | - | - | 110.50.4000.** | 17600 | 2800 |
| 4272 | 4726 | 134 | 4636 | 4364 | 60 | 60 | 45 | 45 | 4497.5 | 4502.5 | 122 | 12 | 10 | M10×1 | - | - | - | - | - | 110.50.4500.** | 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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