Slewing Bearing SANY 700 Swing Ring for Sale
The SANY 700 slewing bearing is built to support extreme working loads, ensuring stable swing motion and long-term reliability for large-class excavators.
| Material | 50Mn/42CrMo |
|---|---|
| Surface Hardness | HRC58-62 |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
Large excavators such as the SANY 700 operate under continuous heavy load, often in quarry, mining, and large earthmoving projects. At the center of this machine is the slewing bearing, which supports the entire upper structure and allows controlled rotation between the house and the undercarriage.
This slewing bearing is engineered to handle both the massive weight of the upper frame and the dynamic forces created by digging, lifting, and swinging heavy material.
Built for High-Load Swing Applications
Unlike standard excavator swing rings, the slewing bearing for the PC1250-7 must withstand continuous high stresses from large buckets, heavy material loads, and long working cycles. The raceways are engineered to distribute these forces evenly across the rolling elements, preventing localized stress concentrations that could lead to premature fatigue or deformation.
This balanced load distribution allows the upper structure to rotate smoothly even when the excavator is operating at maximum capacity, maintaining precise control during material handling and truck loading.
Built for High Impact and Repetitive Load Cycles
In real jobsite conditions, a SANY 700 does not experience smooth, constant loads. Instead, it faces repeated impact forces when breaking rock, loading trucks, or working with oversized buckets. The internal raceway profile and rolling element design of this slewing bearing are optimized to absorb these shocks without creating stress concentration.
This helps prevent surface fatigue and extends bearing life even when the machine operates in demanding production environments.
Heavy-Section Ring Design
The bearing rings use thick cross-section geometry to improve overall stiffness. This reduces elastic deformation when the excavator is slewing under heavy load, keeping the gear mesh and rolling elements in correct alignment.
Better rigidity leads to more predictable swing movement and reduces abnormal wear inside the bearing over time.
Precision Heat Treatment for Wear Resistance
The raceways and gear teeth are heat treated using controlled processes that create a hardened working surface with a tough, crack-resistant core. This structure allows the bearing to resist both rolling contact wear and shock loading without becoming brittle.
For large excavators like the SANY 700, this balance between hardness and toughness is critical for long-term reliability.
Forged Ring Pre-Machining
Our process begins with high-quality alloy steel rings (typically 42CrMo), forged and polished for flatness and crack-free integrity. These rings form the structural base of both inner and outer components.
Gear Cutting on Inner Ring
The inner ring undergoes CNC gear milling to create a tooth profile that precisely matches Volvo swing pinions. After cutting, teeth are quenched and tempered to resist wear and deformation during high-load engagement.
Final Packing & Storage
After inspection, the slewing bearings are coated with anti-rust oil, wrapped in plastic, and packed in strong wooden crates. Labels include model code, part number, and batch information for easy identification and shipping control.
SANY Model Compatibility
We have slewing bearings that can match the following models.
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| SANY | SY16C | SY26C | SY35U | SY50U | SY60C | SY75C | SY95C | SY120C |
| SY135C | SY155U | SY210C | SY215C | SY235C | SY305C | SY365C | SY485C | |
| SY750H | SY855C | SY875C | SY950D | SY135U | SY215U | SY305U | SY365U | |
| SY485U | SY135S | SY215S | SY305S | SY365S | SY485S | |||
Not sure if this bearing fits your machine? Just send us your serial number, part drawing, or old bearing photo, and our technical team will confirm compatibility within 12 hours.
Stable Torque Transfer and Smooth Swing
The integrated ring gear is machined to ensure accurate tooth profile and proper contact with the swing drive pinion. This allows torque to be transmitted smoothly, reducing vibration and backlash during rotation.
Operators benefit from steady, controllable swing movement, especially when positioning heavy loads or performing repetitive loading cycles.
Sealing and Lubrication Protection
Dust, abrasive soil, and moisture are common in mining and large construction sites. The sealing system is designed to retain grease inside the raceways while preventing contaminants from entering the bearing.
By protecting the rolling surfaces and gear teeth, the bearing maintains smooth rotation and avoids premature internal wear.
Accurate Fit for SANY 700 Mounting Structure
The bolt pattern and mounting faces are manufactured with tight tolerances to ensure correct alignment with the upper frame and undercarriage of SANY 700 excavators. Proper installation ensures that loads are distributed evenly across the bearing, reducing the risk of localized stress or early failure.
This precise fit also simplifies installation and improves overall swing system stability.
Supporting High-Output Machine Performance
A properly designed slewing bearing allows the SANY 700 to work with confidence under extreme conditions. Stable rotation, controlled swing speed, and structural integrity all contribute to higher productivity and lower maintenance cost.
By keeping the swing system reliable, this bearing helps maximize uptime and protect the excavator’s core structure over its working life.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
