SANY 135 Swing Ring Slewing Bearing Manufacturer
The SANY 135 slewing bearing provides stable rotation, accurate positioning, and dependable structural support for medium-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.
The SANY 135 is widely used in urban construction, utility work, road projects, and general earthmoving. Its slewing bearing plays a central role in balancing stability and responsiveness, supporting the upper structure while allowing the excavator to rotate smoothly and accurately.
Unlike large mining-class machines, the SANY 135 relies more on control precision and operating efficiency, which makes the quality of the slewing bearing especially important.
Designed for Smooth and Accurate Swing
In medium-size excavators, swing precision directly affects cycle time and operator comfort. This slewing bearing is built with carefully machined raceways and rolling elements that maintain consistent contact under varying loads. The result is smooth rotation without sudden resistance or uneven torque.
This allows the operator to position the bucket accurately when trenching, loading, or working in confined spaces.
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.
Balanced Load-Carrying Structure
The bearing is designed to handle both axial and radial forces generated during digging, lifting, and slewing. Its internal geometry distributes loads evenly across the rolling elements, preventing localized stress that can lead to early fatigue.
This balanced structure helps the SANY 135 maintain stability even when working with extended arms or heavier attachments.
Durable Materials with Controlled Heat Treatment
The raceways and gear teeth are manufactured from high-strength steel and treated with precise heat processes to achieve a hardened working surface combined with a tough internal core. This improves resistance to wear while avoiding brittleness that could cause cracking under shock loads.
For machines that operate daily in mixed soil, sand, and gravel, this material structure ensures reliable long-term performance.
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.
Low-Noise, Efficient Gear Engagement
The integrated ring gear is machined for accurate tooth profile and consistent contact with the swing drive pinion. This reduces vibration and noise during rotation, which is especially important for machines working in residential and urban environments.
Smooth gear engagement also minimizes energy loss and supports efficient swing movement.
Sealing and Grease Retention System
Dust, moisture, and fine abrasive particles are constant threats to slewing bearings. This bearing uses a sealing design that keeps lubricant inside the raceway while preventing external contaminants from entering.
Good lubrication stability reduces internal friction, slows wear, and extends service intervals, helping operators keep maintenance costs under control.
Precision Fit for SANY 135 Structure
The mounting surfaces and bolt holes are produced with tight dimensional tolerances to match the SANY 135 upper frame and undercarriage. Correct fit ensures proper alignment, allowing loads to be transferred evenly through the bearing rather than concentrated in one area.
This precision fit supports long-term structural integrity and reliable swing performance.
Supporting Everyday Jobsite Productivity
A well-built slewing bearing allows the SANY 135 to deliver consistent performance day after day. Stable rotation, controlled movement, and durable internal components all contribute to higher operating efficiency and reduced downtime.
Whether working on utility trenches, road construction, or general excavation, this slewing bearing helps keep the machine operating smoothly and predictably.
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.
