Double-row Slewing Bearings Made of 50Mn Steel

Double-row ball slewing bearing

Double-row slewing bearings adopt a double-row different or same diameters ball structure and three-seat ring integrated design.The upper and lower rows of steel balls bear load independently, and the special arc bearing angle can withstand ultra-large axial force, radial force and overturning moment simultaneously. With open assembly process, the product features convenient installation and maintenance, compact overall structure, flexible rotation, wear resistance and impact resistance. It is suitable for various heavy-duty and continuous-operation mechanical equipment, serving as the core rotary component of construction machinery, port equipment and metallurgical equipment.

Features & performance advantages

Dual diameter ball load-bearing structure: the upper and lower rows of steel balls with different or same diameters bear loads separately, with axial load capacity 40% higher than ordinary single-row slewing bearings, ideal for equipment with high center of gravity and eccentric load conditions.

Modular assembly design: steel balls and spacers can be directly arranged and assembled without complex tooling, greatly improving the efficiency of installation, maintenance and replacement.

Strong multi-condition adaptability: customizable raceway structure according to radial load ratio, suitable for conventional heavy load, high-frequency rotation and harsh outdoor working conditions.

Specification

Our showcase

Why Choose Us

High load capacity, wear resistance & long service life

Strict dimensional tolerance, smooth rotation

Customization drawings / OEM / ODM available

Direct factory price, stable delivery

Complete inspection & test report before shipment

Suitable for heavy-duty engineering & harsh working environment

After Sales Service

Tailored product according to your drawings or samples

Professional technical support anytime

Strict quality inspection & full set of shipping documents

Fast delivery & safe packaging (plywood pallet/case)

One-year quality warranty

FAQ

1. Can double-row ball slewing bearings be customized?

Full-dimensional customization is supported. We can customize inner diameter, outer diameter, height, mounting hole positions and gear parameters (module, number of teeth) according to equipment working conditions; customize special models for high temperature resistance, corrosion resistance, low speed and high load for special working conditions; and customize sealing forms and surface anti-rust treatment processes (blackening, galvanizing, painting) to meet the usage requirements of special scenarios such as mining, port, chemical industry, severe cold and high temperature.

2. How to judge whether the slewing bearing is faulty and needs timely replacement?

Overhaul or replace immediately when the following situations occur: 1. continuous abnormal noise, jamming and sharp increase of rotation resistance during equipment rotation; 2. significantly increased rotation clearance, resulting in equipment shaking and offset; 3. continuous oil leakage and dust ingress at the seal with rust and wear marks on the raceway; 4. sharp decline of load capacity under rated working conditions and unstable operation; 5. gear wear, broken teeth and transmission jamming. Continuous use with the above conditions will lead to equipment loss and safety accidents.

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.