Precision Three-row Roller Slewing Bearing Made of 50Mn Steel

Precision Three-row Roller Slewing Bearing

The three-row roller slewing bearing is a high-end slewing ring specially designed for heavy-duty working conditions. Adopting a three-row roller independent partition load-bearing structure, it can withstand ultra-large axial load, radial load and overturning moment simultaneously, breaking the load limit of single and double-row slewing bearings. As a direct manufacturer, we provide standard models and full-dimensional non-standard customization, including material selection, heat treatment, gear processing and anti-corrosion customization. All products are equipped with authoritative quality inspection certificates, widely applied in cranes, tunnel boring machines, port machinery, mining equipment and offshore heavy machinery.

Features & performance advantages

Super load-bearing structure: three-row rollers bear loads independently with uniform force distribution, completely solving the problems of uneven force and easy deformation under heavy load, with much higher load capacity than single/double-row slewing bearings of the same specification.

Diversified structural options: three structural types (non-gear, internal gear, external gear) are available to match different drive motors and transmission systems, adapting to various equipment installation solutions.

High precision & wear resistance: the raceway adopts high-frequency induction quenching technology with uniform hardness and excellent wear and fatigue resistance, effectively extending the continuous operation life of equipment and reducing maintenance costs.

Specification

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Why Choose Us

Tailored product according to your drawings or samples

Professional technical support anytime

Customization drawings / OEM / ODM available

Direct factory price, stable delivery

Strict quality inspection & full set of shipping documents

Fast delivery & safe packaging (plywood pallet/case)

One-year quality warranty

Certificates

FAQ

Q1.  What are the core advantages of three-row roller slewing bearings compared with single/double-row types??

The core advantage of the three-row roller structure is partitioned independent load-bearing. The three rows of rollers correspond to axial force, radial force and overturning moment respectively without mutual interference. Compared with single and double-row slewing bearings, its load capacity is increased by more than 50% with higher structural rigidity and minimal deformation. It can withstand heavy loads and impact loads for a long time, avoiding raceway wear, jamming and deformation failure, making it the preferred accessory for large and heavy high-end equipment.

Q2. Do you support non-standard customization and special working condition modification?

As a professional slewing ring manufacturer with over 10 years, we support full-dimensional non-standard customization services. According to customers' equipment installation size, limit load, working speed and service environment (high temperature, high humidity, dust, marine anti-corrosion), we can customize diameter, gear shape, precision, sealing structure and surface anti-corrosion technology. Meanwhile, we can optimize the product structure for extreme working conditions such as mining and offshore engineering to improve wear resistance, corrosion resistance and impact resistance, fully adapting to customers' personalized needs.

*For technical consultation or custom quotations, please provide gear parameters (module, number of teeth, face width, accuracy requirements, operating conditions, etc.). Our engineering team will deliver a professional solution tailored to your specific needs.