SK60 SK60-5 SK60-6 Excavator slewing bearing for kobelco

Short Description:

A slewing bearing or slew[ing] ring 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. (To "slew" means to turn without change of place.)

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Product Detail

Product Tags

1.Id:320-4500 Od:550-4500mm

2.material: 52Mn,42CrMo

3.OME service

4.ISO9001-2000 certificate

5.R&D capacity

6.Tolerance:ABEC-1 standard

7.Basic loading rating:Dynamic & Static depend on different model

The single-row four points contact ball Slewing Bearing is composed of 2 seat-rings.It features compact in design,and light in weight.

The balls contact with the circular race at four points,via which the axial force,radial force and resultant moment may be born simultaneously.

It may be used for slewing conveyers,welding arms and positioners,light,medium duty cranes,excavators and other engineering machines.

Dimensions					Mount dimensions			Number of holes		Gear parameters				Designation
mm					mm			Number of holes		m	mm	z	mm
D	d	T	H	h	D1	d1	dn	n	n1	m	Da	z	b
662	458	80	70	10	626	494	18	20	4	5	689	135	60	011.30.560
662	458	80	70	10	626	494	18	20	4	6	688.8	112	60	012.30.560
732	528	80	70	10	696	564	18	24	4	6	772.8	126	60	011.30.630
732	528	80	70	10	696	564	18	24	4	8	774.4	94	60	012.30.630
812	608	80	70	10	776	644	18	24	4	6	850.8	139	60	011.30.710
812	608	80	70	10	776	644	18	24	4	8	854.4	104	60	012.30.710
922	678	100	20	10	878	722	22	30	6	8	966.4	118	80	011.40.800
922	678	100	20	10	878	722	22	30	6	10	968	94	80	012.40.800
1022	778	100	90	10	978	822	22	30	6	8	1062.4	130	80	011.40.900
1022	778	100	90	10	978	822	22	30	6	10	1068	104	80	012.40.900
1122	878	100	90	10	1078	922	22	36	6	10	1188	116	80	011.40.1000
1122	878	100	90	10	1078	922	22	36	6	12	1185.6	96	80	012.40.1000