Slewing Ring Bearing Price

common several slewing bearing prices

Single row ball slewing bearing:

This is the most common 1 type on the market. The structure is relatively simple. It is suitable for application scenarios with light to medium load and low to medium speed, such as small construction machinery and food machinery.

The price of such products usually ranges from a few hundred to a few thousand RMB, depending on the size and carrying capacity.

Double row ball bearing slewing ring:

Compared with the single volleyball type, the double volleyball type can withstand greater axial force, radial force and overturning moment, and the bearing capacity has been significantly improved. They are commonly used in medium-sized cranes, excavators and other equipment.

The price of crane slew ring and excavator slew ring is usually in the thousands to tens of thousands of yuan.

Three row roller slewing bearing:

Mainly used in the field of heavy machinery, known for its excellent carrying capacity and rigidity, suitable for port machinery, large tower cranes, wind power equipment, etc.

The price of such products is relatively high, generally in the tens of thousands to hundreds of thousands of dollars, or even higher.

Cross roller type slewing bearing:

This kind of bearing is characterized by cross arrangement of rollers, which can bear axial force, radial force and overturning moment at the same time. It has compact structure and high precision. It is often used in robots, precision turntables, etc.

Prices are usually in the thousands to tens of thousands of yuan, and high-end precision products are even higher.

What constitutes the cost of slewing ring

Raw material cost

• Steel: Bearing materials mainly use high-quality alloy structural steel, such as 42CrMo, 50Mn, 40Cr, etc. The volume of steel purchased, market fluctuations and the bargaining power of suppliers also affect this cost.
• Rolling body: namely steel ball or roller. Steel balls are usually made of high carbon chromium bearing steel (such as GCr15), and rollers are mostly alloy structural steel. The dimensional accuracy, roundness, surface roughness and hardness of the rolling body are very important, which directly affect the rotation accuracy and stability of the slewing bearing. The cost of precision grade rolling elements is much higher than that of ordinary grade.
• Seals: used to prevent grease leakage and external contaminants into, mostly nitrile rubber or fluorine rubber. Good seals can effectively extend bearing life.

Production and processing costs

From blanking, forging, heat treatment, roughing, finishing to grinding, every link requires high-precision equipment and the operation of skilled technicians.

For example, the accuracy of gear machining, the depth and hardness of raceway quenching, and the final grinding accuracy, all directly affect the quality and cost of the product. These precision machining process investment is huge, but to ensure product performance is essential.

R & D design cost

An excellent slewing bearing is inseparable from the early research and development investment.

Including the engineer’s in-depth analysis of the application scenario, structural optimization design, material selection, finite element analysis, etc.

For example, slewing bearings for special environments such as wind power require a lot of simulation and testing to ensure reliability under extreme conditions. Although this part of the cost is not easy to detect, it is the source of product innovation and competitiveness.

Quality control and certification costs

• Testing equipment: purchase and maintain all kinds of precision testing equipment, such as three-coordinate measuring instrument, hardness tester, metallographic microscope, roughness meter, spectrum analyzer, vibration noise tester, life test bench, etc. After the detection of these precision equipment to ensure the quality and accuracy of each slewing bearing.
• Certification fees: regular ISO9001, CE, CCS (classification society certification) and other domestic and foreign quality system and product certification audit fees, consulting fees. These certifications are a pass for a product to enter a specific market and gain customer trust.

Logistics transportation cost

• Packaging: In order to ensure that the product is not damaged during transportation, professional anti-rust, moisture-proof, and shock-proof packaging is required. For example, our company has customized wooden box or steel frame packaging for large slewing bearings, and the cost is relatively high.
• Transportation: According to the transportation distance, mode (land transportation, sea transportation, air transportation), weight and volume of goods, the corresponding freight is generated.
• Insurance: In order to avoid transportation risks, transportation insurance is usually purchased for the goods to ensure that even if there are problems in the process of transportation, they can be compensated accordingly.

After-sales warranty cost

• Repair or replacement during the warranty period: If the product has non-human quality problems during the warranty period, we will bear the cost of repair or replacement.
• Technical support: to provide customers with product installation guidance, use and maintenance advice, troubleshooting and other technical consulting services labor costs.

How to Find Valuable Slewing Bearings

Slewing bearing itself

• Product model: confirm the specific model you need, including size, tooth profile (internal tooth, external tooth, no tooth), hole position, etc. An accurate model can help suppliers give the most accurate quotation.
• Product performance: clearly explain your application environment and load requirements, including axial force, radial force, overturning moment, speed, working temperature, anti-corrosion requirements, etc. These parameters will determine the material selection, heat treatment process and structural design of the slewing bearing.
• Product specification: carefully check whether the product specification is consistent with the actual product.
• Product Quality Inspection Report: requires the supplier to provide the factory quality inspection report of the product. This report can prove that the product has undergone strict testing and meets the relevant standards.

Trusted manufacturer

 Production equipment: A good manufacturer must have advanced production and testing equipment. For example, we have introduced the world’s leading CNC machining centers, large gear grinders, raceway quenching equipment, etc., which are all hardware guarantees for producing high-quality products.

 Quality Control: Understand the manufacturer’s quality control process. Whether there is a complete quality management system, from raw material procurement to finished product leaving the factory, and whether there are strict inspection records at each step, it is also a good opportunity to understand the manufacturer’s production process.

 After-sales service: Even the best products may encounter problems during use. A manufacturer that provides timely and professional after-sales service can give you no worries.

FAQ

What are the reasons for the large differences in slewing bearing prices?

 The price differences between slewing bearings are mainly due to large differences in product type, size, load-bearing capacity, precision requirements, material selection, manufacturing process complexity, and manufacturers’ brand and R&D investment.

 How to judge the quality of slewing bearing?

 The surface of the inner and outer rings and teeth of the bearing is smooth and smooth, without obvious burrs, scratches, pits or cracks. On the bearing body or packaging, there is clear and complete manufacturer’s brand, model, production date, etc. identification.

 What is the life of slewing support in general?

 The life of slewing bearings is affected by many factors, including load conditions, working environment, lubrication maintenance, and the quality of the product itself. Generally speaking, high-quality slewing bearings with reasonable design and proper maintenance can have a service life of several years or even longer.

 What are the precautions for daily maintenance of slewing support?

Regular lubrication is key, following the grease model and cycle recommended in the product description. At the same time, the tightness of the fastening bolts should be checked regularly, and attention should be paid to dust and water resistance.