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NSK 6203ddu Bearing

 

Daewoo Slewing Bearing

Daewoo  slewing bearing is a rotational rolling-element bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis windmill.
Compared to other rolling-element bearings, slewing bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metres diameter and fit over a 3.5 metre axle.

Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.

Slewing bearings are often made with gear teeth integral with the inner or outer race, used to drive the platform relative to the base.

As for other bearings that reciprocate, rather than rotating continuously, lubrication can be difficult. The oil wedge built up in a continuously rotating bearing is disrupted by the stop start motion of slewing. Instead, a hydrostatic bearing with pumped oil flow may be used.

Slewing ring, slew bearing for excavator and crane spare parts YRT260, 900
Slewing ring, slew bearing for excavator and crane spare parts YRT260, 900
YRT260,
1 pcs
four point contact ball swing ring bearings rubber seals
four point contact ball swing ring bearings rubber seals
1 pcs
Negotiable
xuzhou fenghe manufacturer four point contact ball swing ring
xuzhou fenghe manufacturer four point contact ball swing ring
1 pcs
Negotiable
large size swing ring bearing tower crane slewing gear
large size swing ring bearing tower crane slewing gear
1 pcs
Negotiable
tower crane slewing bearing ,internal gear
tower crane slewing bearing ,internal gear
1 pcs
Negotiable
high precision tooth quenching slewing gear bearings
high precision tooth quenching slewing gear bearings
1 pcs
Negotiable
Internal Gear Slewing Bearing for Stiff Boom Crane
Internal Gear Slewing Bearing for Stiff Boom Crane
1 pcs
Negotiable
grab bucket type truck crane replacement slew bear
grab bucket type truck crane replacement slew bear
1 pcs
Negotiable
slewing rings optimal turret bearing for military large stock in mill
slewing rings optimal turret bearing for military large stock in mill
1 pcs
Negotiable
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