High Precision Excavator Slewing Ring Bearing - Heavy Duty Single Row Ball, Internal Gear, Customized for Crane & Construction Machinery (Factory Price) Type:XU120222
| Product Type: | 1. Single Row Four-Point Contact Ball Slewing Bearing2. Double Row Angular Contact Ball Slewing Bearing3. Single Row Cross Roller Slewing Bearing4. Three-Row Cylindrical Roller Slewing Bearing | Material: | High-Carbon Chromium Steel |
| Diameter Range: | 100mm - 15,000mm (Customizable; Large-sized Bearings Can Be Segmented For Transportation) | Precision Grade: | P0, P6, P5 (Optional); Surface Roughness: Ra ≤ 0.2μm; Axial Clearance: 0.02-0.05mm (Adjustable) |
| Customization: | Accept | Lubrication: | Grease / Oil |
| Packing: | Customer Requirement | ||
| High Light: | High precision excavator slewing bearing,Heavy duty slewing ring with internal gear,Customized slewing bearing for construction machinery |
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Our slewing ring bearing (slewing bearing) is designed for heavy-duty rotary applications in Southeast Asia's infrastructure, mining, and renewable energy sectors. Suitable for excavators, cranes, wind turbines, solar trackers, and port machinery.
| Parameter | Data |
|---|---|
| Inner diameter range | 200 mm – 5000 mm |
| Outer diameter range | 400 mm – 5500 mm |
| Height range | 50 mm – 300 mm |
| Gear types | Internal gear, external gear, non-gear |
| Raceway types | Single row ball, double row ball, three row roller, cross roller |
| Material | 50Mn, 42CrMo (forged steel) |
| Heat treatment | Induction hardening, HRC 55-62 |
| Sealing | Double lip rubber seal (IP66 optional) |
| Lubrication | Pre-filled with grease, lubrication holes provided |
| Precision grade | P0, P5, P6 (ISO standard) |
- ISO 9001:2015 certified
- GB/T 2299-2002 standard
- Third-party inspection available (SGS, BV, TÜV)
Excavators & Cranes (Vietnam, Indonesia)
Direct replacement for Komatsu, Hitachi, Kobelco.Single row ball and double row ball types available. Internal or external gear options to match original equipment specifications.
Wind Turbines & Solar Trackers (Vietnam, Thailand)
Cross roller design with high precision rotation. Corrosion-resistant coating suitable for tropical humid climate. Low friction torque for tracking accuracy.
Port & Marine Equipment (Singapore, Malaysia)
Three row roller type for extreme heavy loads. IP66 sealing rating for water and dust protection. Design life of 20+ years under continuous operation.
- Forged steel rings for higher strength and fatigue resistance
- Induction hardened raceways with uniform hardness depth
- Precision gear cutting with gear accuracy up to ISO 7
- 100% ultrasonic testing for internal defects
- Raw material certificate (mill test report)
- Dimensional inspection during and after production
- Magnetic particle inspection for surface cracks
- Hardness testing on raceway and gear teeth
- Rotation torque test before packing
- Anti-rust oil coated on all exposed surfaces
- Plastic wrap + craft paper + waterproof film
- Wooden crate with steel strapping for sea freight
- Loading supervision available upon request
- Factory direct pricing
- MOQ: 1 piece accepted
- Technical drawings support (CAD, PDF)
| Current bearing designation | Dimensions(mm) | weigh | ||
| d | D | T | (kg) | |
| Type120 | ||||
| XU120222 | 140 | 300 | 36 | |
| 120.25.500 | 398 | 602 | 75 | 8O |
| 120.25.560 | 458 | 662 | 75 | 90 |
| 120.25.630 | 528 | 732 | 75 | 100 |
| 120.25.710 | 608 | 812 | 75 | 110 |
| 120.28.800 | 678 | 922 | 82 | 170 |
| 120.28.900 | 778 | 1022 | 82 | 190 |
| 120.28.1000 | 878 | 1122 | 82 | 210 |
| 120.28.1120 | 998 | 1242 | 82 | 230 |
| 120.32.1250 | 1110 | 1390 | 91 | 350 |
| 120.32.1400 | 1260 | 1540 | 91 | 400 |
| 120.32.1600 | 1460 | 1740 | 91 | 400 |
| 120.32.1600.03K | 1460 | 1740 | 100 | 429 |
| 120.32.1800 | 1660 | 1940 | 91 | 500 |
| 120.40.2000 | 1825 | 2178 | 112 | 900 |
| 120.40.2240 | 2065 | 2418 | 112 | 1000 |
| 120.40.2500 | 2325 | 2678 | 112 | 1100 |
| 120.40.2800 | 2625 | 2978 | 112 | 1250 |
| 120.50.3150 | 2922 | 3376 | 134 | 2150 |
| 120.50.3550 | 3322 | 3776 | 134 | 2470 |
| 120.50.4000 | 3772 | 4226 | 134 | 2800 |
| 120.50.4500 | 4272 | 4726 | 134 | 3100 |
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