Three Row Cylindrical Roller Slewing Bearings
The slewing ring of the three-row cylindrical roller slewing bearing has three races. The upper, lower, and radial raceways are separated. Therefore, each row of rollers can bear axial and radial loads, respectively. It is the one with the larger carrying capacity of the four products. The shaft and radial dimensions are significant, but the relative diameter of the bearing is significantly reduced, which makes the structure compact. It is particularly suitable for heavy machinery that requires larger loads, such as bucket wheel excavators, wheeled cranes, ship cranes, port cranes, molten steel mobile platforms, and large-tonnage truck cranes.
Product parameters
(1) Model parameters of externally toothed three-row cylindrical roller slewing bearings
Model | Dimensions | Installation size | Tooth parameters | Load | Weight | ||||||||||||||
De | de | di | Di | He | Hi | Ht | Fe | Ne | V | Fi | Ni | V | m | z | Dp | x·m | |||
[mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [-] | [mm] | [-] | [mm] | [-] | [mm] | [mm] | [kN] | [kg] | |||
3R25-E-0500 | 665 | 526 | 537 | 366 | 116 | 138 | 148 | 598 | 24 | 18 | 402 | 24 | 18 | 5 | 130 | 650 | 5 | 2750 | 224 |
3R25-E-0560 | 725 | 586 | 597 | 426 | 116 | 138 | 148 | 658 | 24 | 18 | 462 | 24 | 18 | 5 | 142 | 710 | 5 | 3080 | 240 |
3R25-E-0630 | 808 | 593 | 604 | 496 | 116 | 138 | 148 | 728 | 28 | 18 | 532 | 28 | 18 | 8 | 98 | 784 | 8 | 3450 | 270 |
3R25-E-0710 | 888 | 673 | 684 | 576 | 116 | 138 | 148 | 808 | 28 | 18 | 612 | 28 | 18 | 8 | 108 | 864 | 8 | 3880 | 300 |
3R30-E-0800 | 1008 | 830 | 841 | 636 | 142 | 172 | 182 | 920 | 36 | 22 | 680 | 36 | 22 | 8 | 123 | 984 | 8 | 5490 | 500 |
3R30-E-0900 | 1104 | 930 | 941 | 736 | 142 | 172 | 182 | 1020 | 36 | 22 | 780 | 36 | 22 | 8 | 135 | 1080 | 8 | 6190 | 600 |
3R30-E-1000 | 1220 | 1030 | 1041 | 836 | 142 | 172 | 182 | 1120 | 40 | 22 | 880 | 40 | 22 | 10 | 119 | 1190 | 10 | 6890 | 680 |
3R30-E-1120 | 1340 | 1150 | 1161 | 956 | 142 | 172 | 182 | 1240 | 40 | 22 | 1000 | 40 | 22 | 10 | 131 | 1310 | 10 | 7680 | 820 |
3R40-E-1250 | 1512 | 1200 | 1210 | 1055 | 170 | 210 | 220 | 1393 | 45 | 26 | 1107 | 45 | 26 | 14 | 105 | 1470 | 14 | 11100 | 1200 |
3R40-E-1400 | 1666 | 1350 | 1360 | 1205 | 170 | 210 | 220 | 1543 | 45 | 26 | 1257 | 45 | 26 | 14 | 116 | 1624 | 14 | 12400 | 1300 |
3R40-E-1600 | 1872 | 1550 | 1560 | 1405 | 170 | 210 | 220 | 1743 | 48 | 26 | 1457 | 48 | 26 | 16 | 114 | 1824 | 16 | 14200 | 1520 |
3R40-E-1800 | 2072 | 1840 | 1850 | 1605 | 170 | 210 | 220 | 1943 | 48 | 26 | 1657 | 48 | 26 | 14 | 145 | 2030 | 14 | 15900 | 1750 |
3R45-E-2000 | 2304 | 1945 | 1967 | 1779 | 177 | 219 | 231 | 2155 | 60 | 33 | 1845 | 60 | 33 | 18 | 125 | 2250 | 18 | 20500 | 2400 |
3R45-E-2240 | 2556 | 2185 | 2207 | 2019 | 177 | 219 | 231 | 2395 | 60 | 33 | 2085 | 60 | 33 | 18 | 139 | 2502 | 18 | 23100 | 2700 |
3R45-E-2500 | 2820 | 2445 | 2467 | 2279 | 177 | 219 | 231 | 2655 | 72 | 33 | 2345 | 72 | 33 | 20 | 138 | 2760 | 20 | 25800 | 3000 |
(2) Internal gear type three-row cylindrical roller slewing bearing
Model | Dimensions | Installation size | Tooth parameters | Load | Weight | ||||||||||||||
De | de | di | Di | He | Hi | Ht | Fe | Ne | V | Fi | Ni | V | m | z | Dp | x·m | |||
[mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [-] | [mm] | [-] | [mm] | [-] | [mm] | [mm] | [kN] | [kg] | |||
3R25-I-0500 | 634 | 526 | 537 | 335 | 138 | 116 | 148 | 598 | 24 | 18 | 402 | 24 | 18 | 5 | 68 | 340 | 5 | 2750 | 224 |
3R25-I-0560 | 694 | 586 | 597 | 395 | 138 | 116 | 148 | 658 | 24 | 18 | 462 | 24 | 18 | 5 | 80 | 400 | 5 | 3080 | 240 |
3R25-I-0630 | 764 | 656 | 667 | 456 | 138 | 116 | 148 | 728 | 28 | 18 | 532 | 28 | 18 | 6 | 77 | 462 | 6 | 3450 | 270 |
3R25-I-0710 | 844 | 736 | 747 | 534 | 138 | 116 | 148 | 808 | 28 | 18 | 612 | 28 | 18 | 6 | 90 | 540 | 6 | 3880 | 300 |
3R30-I-0800 | 964 | 759 | 770 | 590 | 172 | 142 | 182 | 920 | 36 | 22 | 680 | 36 | 22 | 10 | 60 | 600 | 10 | 5490 | 500 |
3R30-I-0900 | 1064 | 930 | 941 | 688 | 172 | 142 | 182 | 1020 | 36 | 22 | 780 | 36 | 22 | 8 | 87 | 696 | 8 | 6190 | 600 |
3R30-I-1000 | 1164 | 1030 | 1041 | 780 | 172 | 142 | 182 | 1120 | 40 | 22 | 880 | 40 | 22 | 10 | 79 | 790 | 10 | 6890 | 680 |
3R30-I-1120 | 1284 | 1150 | 1161 | 900 | 172 | 142 | 182 | 1240 | 40 | 22 | 1000 | 40 | 22 | 10 | 91 | 910 | 10 | 7680 | 820 |
3R40-I-1250 | 1445 | 1200 | 1210 | 980 | 210 | 170 | 220 | 1393 | 45 | 26 | 1107 | 45 | 26 | 14 | 71 | 994 | 14 | 11100 | 1200 |
3R40-I-1400 | 1595 | 1350 | 1360 | 1134 | 210 | 170 | 220 | 1543 | 45 | 26 | 1257 | 45 | 26 | 14 | 80 | 1150 | 14 | 12400 | 1300 |
3R40-I-1600 | 1795 | 1550 | 1560 | 1328 | 210 | 170 | 220 | 1743 | 48 | 26 | 1457 | 48 | 26 | 16 | 84 | 1344 | 16 | 14200 | 1520 |
3R40-I-1800 | 1995 | 1750 | 1760 | 1520 | 210 | 170 | 220 | 1943 | 48 | 26 | 1657 | 48 | 26 | 16 | 96 | 1536 | 16 | 15900 | 1750 |
3R45-I-2000 | 2221 | 1945 | 1967 | 1692 | 219 | 177 | 231 | 2155 | 60 | 33 | 1845 | 60 | 33 | 18 | 95 | 1710 | 18 | 20500 | 2400 |
3R45-I-2240 | 2461 | 2273 | 2295 | 1920 | 219 | 177 | 231 | 2395 | 60 | 33 | 2085 | 60 | 33 | 16 | 121 | 1936 | 16 | 23100 | 2700 |
3R45-I-2500 | 2721 | 2533 | 2555 | 2178 | 219 | 177 | 231 | 2655 | 72 | 33 | 2345 | 72 | 33 | 18 | 122 | 2196 | 18 | 25800 | 3000 |
(3) Gearless three-row cylindrical roller slewing bearing model parameters
Model | Dimensions | Installation size | Load | Weight | |||||||||||
De | de | di | Di | He | Hi | Ht | Fe | Ne | V | Fi | Ni | V | |||
[mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [-] | [mm] | [-] | [kN] | [kg] | |||
3R25-U-0500 | 634 | 526 | 537 | 366 | 138 | 116 | 148 | 598 | 24 | 18 | 402 | 24 | 18 | 2750 | 224 |
3R25-U-0560 | 694 | 586 | 597 | 426 | 138 | 116 | 148 | 658 | 24 | 18 | 462 | 24 | 18 | 3080 | 240 |
3R25-U-0630 | 764 | 656 | 667 | 496 | 138 | 116 | 148 | 728 | 28 | 18 | 532 | 28 | 18 | 3450 | 270 |
3R25-U-0710 | 844 | 736 | 747 | 576 | 138 | 116 | 148 | 808 | 28 | 18 | 612 | 28 | 18 | 3880 | 300 |
3R30-U-0800 | 964 | 830 | 841 | 636 | 172 | 142 | 182 | 920 | 36 | 22 | 680 | 36 | 22 | 5490 | 500 |
3R30-U-0900 | 1064 | 930 | 941 | 736 | 172 | 142 | 182 | 1020 | 36 | 22 | 780 | 36 | 22 | 6190 | 600 |
3R30-U-1000 | 1164 | 1030 | 1041 | 836 | 172 | 142 | 182 | 1120 | 40 | 22 | 880 | 40 | 22 | 6890 | 680 |
3R30-U-1120 | 1284 | 1150 | 1161 | 956 | 172 | 142 | 182 | 1240 | 40 | 22 | 1000 | 40 | 22 | 7680 | 820 |
3R30-U-1250 | 1445 | 1290 | 1300 | 1055 | 210 | 170 | 220 | 1393 | 45 | 26 | 1107 | 45 | 26 | 11100 | 1200 |
3R40-U-1400 | 1595 | 1440 | 1450 | 1205 | 210 | 170 | 220 | 1543 | 45 | 26 | 1257 | 45 | 26 | 12400 | 1300 |
3R40-U-1600 | 1795 | 1640 | 1650 | 1405 | 210 | 170 | 220 | 1743 | 48 | 26 | 1457 | 48 | 26 | 14200 | 1520 |
3R40-U-1800 | 1995 | 1840 | 1850 | 1605 | 210 | 170 | 220 | 1943 | 48 | 26 | 1657 | 48 | 26 | 15900 | 1750 |
3R45-U-2000 | 2195 | 2041 | 2055 | 1816 | 137 | 117 | 150 | 2127 | 60 | 33 | 1885 | 60 | 33 | 16900 | 1120 |
3R45-U-2240 | 2461 | 2273 | 2295 | 2019 | 219 | 177 | 231 | 2395 | 60 | 33 | 2085 | 60 | 33 | 23100 | 2700 |
3R45-U-2500 | 2721 | 2533 | 2555 | 2279 | 219 | 177 | 231 | 2655 | 72 | 33 | 2345 | 72 | 33 | 25800 | 3000 |
Features of three-row cylindrical roller slewing bearing
- Suitable for highest axial loads and tilting moments.
- Suitable for large connecting structures.
- Usually, three-row roller rotary bearings are used for some heavy machinery.
Company Information
We are a professional manufacturer and supplier of slewing bearings; We make all kinds of slewing bearings, such as four-point contact ball slewing bearings, single row cross roller slewing bearings, double-row ball slewing bearings, three-row roller slewing bearings, flange slewing bearings, light series slewing bearing. We are capable of designing and manufacturing non-standard slewing bearings independently. Our products are widely used in various applications, such as port, ship, vehicle, mining, engineering, lifting, environmental protection, oil, chemicals, light industry, metallurgical machinery, the military, etc. With thirty years of experience, our products are widely exported to the USA, Germany, Japan, Spain, Canada, Italy, France, Finland, Korea, India, Singapore, Brazil, Australia, etc. If you need slewing bearing, please feel free to contact us.
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