Choose Your Brand of Excavator Parts

CAT Excavator Slewing Bearing

Model Part Number Outer Diameter Inside Diameter Total height Outer Height Inner Height Outer Hole Parameters Inner Hole Parameters Number of Teeth
CAT 307C 240-8361 810 568 82 62 62 29 38 75
CAT312CL 229-1077 1093 883 72.5 50 62 34-φ18 38-M16 90
CAT 311 231-6853 1115 883 75 60 67 29-φ18 30-M16 90
CAT 312B 616411 1115 883 75 60 67 29-φ18 30-M16 90
CAT312CL 229-1077 1093 883 72.5 50 62 34-φ18 38-M16 90
CAT 312C 229-1077 1093 883 72.5 50 62 34-φ18 38-M16 90
CAT 315 148-4568 1205 961 94 74 84 34 30 98
CAT 318B 148-4568 1205 961 94 74 84 34 30 98
CAT 315C 229-1080 1205 961 94 74 84 34-φ22 36-M20 98
CAT 319C 227-6079 1310 1065 106 84 88 36 36/M20 90
CAT320B 1141414 1314 1084 100 85 87 33-Ф22 36-M20 110
CAT320BL 121-8222 1314 1084 100 85 87 33-Ф22 36-M20 110
CAT 320 7Y1565 1314 1084 100 85 87 33-φ22 36-M20 110
CAT 320B 114-1505 1314 1084 100 85 87 33-Ф22 36-M20 110
CAT320BL 177-7723 1314 1084 100 85 87 33-Ф22 36-M20 110
CAT 320C 227-6081 1316 1081 105 73 93 42-φ22 40-M20 110
CAT 320C 227-6147 1316 1081 105 73 93 42-φ22 40-M20 110
CAT 320C 171-9425 1316 1081 105 73 93 42-φ22 40-M20 110
CAT 320D 227-6082 1316 1081 105 73 93 42-φ22 40-M20 110
CAT 320L 7Y1563 1316 1084 105 85 92 38-φ22 36-M20 110
CAT 320L 7Y1563 1318 1084 105 86 90 38-φ22 36-M20 110
CAT 225 8K4127 1451 1038 105 92 90 29-φ24 36-φ24 104
CAT 322C 221-6764 1460 1163 110 88 95 34-Ф26 36-M24 85
CAT 324D 227-6085 1460 1164 110 88 95 34-Ф26 36-M24 85
CAT 325 7Y0745 1495 1164 110 93 95 35 38 85
CAT 325C 227-6087 1495 1164 110 93 95 38-φ26 42 85
CAT 326 353-0649 1462 1164 110 89 95 34-φ26 36-M24 85
CAT 329D 227-6087 1495 1164 110 93 95 38-Ф26 42-M24 85
CAT 330 7Y0933 1664 1313.5 140 100 124 42-φ26 46-M24
CAT 330 1994559 1664 1313.5 141 100 124 42-φ26 46-M24 84
CAT 330 353-0487 1664 1313.5 140 100 124 46-φ26 46-M24 84
CAT 336D 353-0489 1665 1313 140 100 122 42 46 84
CAT336DL 227-6089 1665 1314 140 100 125 42 46 84
CAT336DL 353-0680 1664 1313.5 139 100 124 46-φ26 46-M24 84
CAT 336D 353-0490 1665 1313 140 100 122 42 46 84
CAT 345 227-6052 1680 1318 140 107 126 54-φ26 70-M24 96
CAT 345B 136-2969 1680 1343 140 107 126 45-Ф26 60-M24 136
CAT345BII 227-6094 1680 1318 140 108 125 54-Ф26 70-M24 96
CAT345BL 1695536/1695537 1680 1343 140 107 125 45-Ф26 60-M24 136
CAT345DL 227-6037 1680 1318 140 107 125 54-Ф26 70-M24 96
CAT 349D 353-0490 1666 1315 140 100 123 46 46 84
CAT 350 1026392 1680 1343 140 107 126 45-φ26 60-M24 136
CAT 365C 199-4565 1810 1348 180 140 152 37 60 98
CAT 365C 227-6096 1805 1348 180 138 150 37 60 98
CAT 365C 227-6097 1805 1348 180 138 150 37 60 98
CAT365CL 397-9666 1805 1348 180 138 150 37 60 98
CAT374F 378-9586 1820 1348 180 140 150 37 60 98
CAT374 333-3009 1820 1348 180 136 150 37 60 98
CAT374 367-8361 1820 1348 180 136 150 37 60 98
CAT 385C 199-4491 1820 1348 180 146 150 37 60 98
CAT 385C 227-6099 1820 1348 180 146 150 37 60 98
CAT385BL 227-6098 1820 1348 180 138 150 37 60 98
CAT385CL 227-6099 1950 1456 217 170 180 48 74 93
CAT 390D 227-6099 1950 1456 217 170 180 48 74 93
CAT 140 2436650 1113 871 96 75 85 31 30 89

excavator swing bearing
Excavator Swing Bearing

The Powerhouse Component: Slewing Bearings in Excavators

Slewing bearings, the unsung heroes of excavators, are pivotal components that facilitate smooth rotation and precision movement. Positioned at the core of the machine’s structure, these specialized bearings enable the upper part to rotate relative to the lower part with minimal friction and maximum stability.

Engineered to withstand axial, radial, and moment loads simultaneously, slewing bearings boast robust construction using high-quality materials like forged steel or specialized alloys. This durability ensures prolonged service life, even under harsh operating conditions common in excavation projects.

Customized to fit diverse machine specifications, slewing bearings come in various sizes, load capacities, and mounting arrangements. From compact mini-excavators to large hydraulic ones, there’s a tailored solution for optimal performance and reliability.

Precision is paramount in excavation tasks, and slewing bearings excel in this aspect. Their smooth rotation mechanism, coupled with advanced sealing technologies, minimizes vibration and backlash, allowing operators to maneuver with finesse and accuracy.

Beyond mechanical prowess, slewing bearings contribute to efficiency by reducing energy consumption and maintenance needs. Their low-friction design and robust construction minimize power losses and wear, ensuring uninterrupted operation and lower total cost of ownership.

Integrated with sensors and monitoring devices, slewing bearings provide real-time feedback on performance and condition. This proactive maintenance approach maximizes uptime and productivity on job sites.

In essence, slewing bearings embody precision, durability, and efficiency at the core of excavators. They enable seamless rotation, ensure operational precision, and drive progress in excavation and beyond as machines continue to evolve with technological advancements.

With over 1000 types of swing bearings available, we provide unparalleled choice and flexibility.Whether you're in the market for CAT, KOMATSU, HITACHI, HYUNDAI, KOBELCO, VOLVO, DOOSAN, JCB, CASE, LIEBHERR, LIUGONG, SANY, YUCHAI, XCMG, SUMITOMO, or any other leading brand, we've got you covered. 

Contact a Parts Specialist today at +8613023501555 for more information.

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