YDTech® manufacturer of precision double row ball slewing ring bearings(external,internal,non)gear types! supplier of loose single row two row ball turntable swing bearings(small, big) in china.

double row ball slewing bearings as turntable bearings designed to support axial, radial, and moment loads simultaneously. Unlike single-row slewing bearings that have a single row of rolling elements (balls or rollers), double row slewing bearings feature two rows of rolling elements, which are typically balls. this design enhances load-carrying capacity and provides additional stability in certain applications.

the axial size of this kind of slewing ring all are rather big and the structure is firm,so it is especially suitable for some loading Machines of over-medium diameter,such as,tower crane,truck crane,and so on.

double row ball slewing ring bearings are comprised of double row steel balls in upper and lower layers, inner ring and outer ring, spacer, lubricating and seal fittings. the inner ring and outer ring are in two separate structures and two half rings need to be fixed by joint bolts. Due to the upper and lower rows of steel balls, the bearing can carry radial force, axial force and tilting moment simultaneously. mostly, the bearing is working under axial force and tilting moment together.

all our production is perfectly under control and the matching of the rings and the rolling elements, gives batch after batch, the certainty to obtain the right bearing for this very demanding application. We propose also motor torque bearings.

cranes are uniquely constructed, which means the slewing ring bearing is an essential element of its design. quality and precision during the manufacturing process are vital to make sure the crane will run after it's been dismantled and reassembled.

double row ball slewing bearings catalogues, two row ball slewing rings sizes & types

slewing rings in a medical environment need to be highly precise and expertly constructed when it comes to the rings and rolling elements. Slewing bearings must also have some type of sealing solution to prevent leakage in a sterile environment.

types of double row ball turntable swing bearings

depending on the design and application, double row ball slewing bearings may come with sealing arrangements to protect against contaminants and extend the bearing's lifespan. double row ball slewing bearings are versatile and find applications in various industries, including construction, mining, material handling, and offshore equipment.

the double row slewing bearings have a modular construction, allowing for ease of installation and maintenance. selecting double row ball slewing bearings for a specific application, factors such as load capacity, speed, precision requirements, and environmental conditions should be considered. It's essential to choose the appropriate type and size of slewing bearing based on the specific needs of the machinery or equipment in which it will be used.

the slewing bearing drives in heavy machinery enable higher torque, speed reduction and rotational functions. Applications include solar trackers, digger derricks, truck cranes, wind turbines, utility equipment, hydraulic equipment attachments and tire handlers. Their range of applications make slewing ring bearings an integral part of particular industries, including aerospace, automotive, forestry, manufacturing, medical, military, nautical, power, robotics and surveillance.