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An external-toothed slewing ring, also known as an external gear slewing bearing or external gear slew bearing, is a specialized type of bearing designed for applications requiring rotation, such as cranes, excavators, wind turbines, and other heavy machinery.
slewing bearing manufacturing process, china slewing ring gear, ZZ Slewing Bearing provide different kinds of surface treatment: Such as Zinc coating, Sand blast, Painting, oil protecting, barffing etc, which will guarantee the slewing bearing with long durability.
Slewing ring turntable,Slewing ring bearing with external gear, High speeds, high loads and salty environment require strong and precise components. The ZZ slewing rings is the perfect answer to the offshore industry.
Crane slewing bearings, also known as slew bearings or slew bearings, are critical components in the design of cranes and other heavy machinery that require rotation about a central axis. The main function of the slewing bearing is to support the upper structure of the crane (such as the jib and cab) and make it rotate smoothly.
The without teeth slewing ring transmits loads from a turning part towards the fixed part of a mechanism. The applied stresses of the rolling elements on the raceways are calculated according to the Hertz laws and the modern criteria of plasticity. ZZ carries out localized hardening treatments which makes it possible to satisfy these criteria just as well in terms of surface pressure as well as subsurface fatigue.
Each type of slewing bearing corresponds to a load-bearing capacity curve, which can help users make preliminary selections of slewing bearings. There are two types of curves in the graph. One is the static load curve, which represents the maximum load that the slewing ring can bear when it remains stationary. The other is the limit load curve of slewing bearing bolts, which is determined when the clamping length of the bolt is 5 times the nominal diameter of the bolt, and the pre-tightening force is 70% of the yield limit of the bolt material.
Slewing bearings play a vital role in medical equipment, and their applications cover many key areas. In medical imaging equipment, such as CT scanners, MRI machines, and X-ray machines, slewing bearings ensure that imaging components can be accurately positioned and achieve accurate image capture by providing smooth rotational motion.
The J series use the structure of the cross roller to provide high precision with high load capacity. It is mainly used in the construction industry, such as concrete pump trucks, tower cranes and wheel cranes.
HJ series slewing bearing internal rolling body is roller, which is installed by crossing. It also provides internal gear, external gear and toothless structure. It has the characteristics of small assembly clearance, high precision and stable operation. Widely used in the field of test platforms, military products, artificial intelligence.
