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Double Row Ball Slewing Bearing (WD-07) External Gear With Slewing Ring Bearings Better Price

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A slewing bearing or slew[ing] ring is a rotational rolling-element bearing or plain 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. (To "slew" means to turn without change of place.)
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Slewing bearing

A slewing bearing or slew[ing] ring is a rotational rolling-element bearing or plain 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. (To "slew" means to turn without change of place.)

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 resemble oversize aircraft control surface bearings.

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.

Double row ball slewing bearing, slewing ring has three seat rings, the steel ball and spacers can be directly arranged into the upper and lower race, and the steel ball has two different size.

Double row different ball slewing bearing , slewing ring’s axial and radial loads are relatively large, it is specially suitable for the medium diameter tower cranes, truck mounted cranes etc

The Thin Section Slewing Bearing has the same structure with ordinary  slewing bearing,but the weight is light,and rotate flexibly

Tytle:WD-071

Wight/KG:80-240

Strengths:The Oil nipple's location can be change according to the user's application.

Application:

1. food machinaery,

2.canning machinery  

3.environmental machinery etc.

外齿简图.jpg


Model

Pdf.format

Dimensions ( mm) Mounting dimension (mm)
Da O U Di Ha Hb H La na da Li ni di
WD-071.22.372.pdf 504 466 374 278 75 87 95 430 16 18 314 16 18
WD-071.22.476.pdf 608 570 478 382 75 87 95 534 24 18 418 24 18
WD-071.22.580 712 674 582 486 76 88 98 638 24 18 522 24 18
WD-071.22.948.pdf 1080 1042 950 854 76 88 98 1006 30 18 890 30 18
WD-071.22.1064 1200 1162 1066 966 78 88 98 1124 36 20 1004 36 20


Model Gear Data Gear force( KN) Weight
P(mm) Module Z(teeth no.) Allowed Max Kg
WD-071.22.372 488 8 61 31 62 80
WD-071.22.476 592 8 74 31 62 100
WD-071.22.580 696 8 87 32 64 126
WD-071.22.948 1064 8 133 32 64 208
WD-071.22.1064 1184 8 148 33 66 240



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Xuzhou WanDa Slewing Bearing Co.,Ltd.
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Xuzhou WanDa Slewing Bearing Co.,Ltd.
 No.15,Huaxia Road,the 3rd Industrial Park,Tongshan District, Xuzhou, Jiangsu,China.
  +86-516-83309366     +86-516-83303986
   info@slew-bearing.com
  +86-133-37939399   +86-180 2053 7858

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