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WCB kobelco swing gear.pdf


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www.wcbearing.com

wenchen@wcbearing.com

Four point contact slewing bearings
with external gear teeth

Whatsapp:+8617702586093

Static limited load curves for raceway

1r to 14r

Static limited load curves for bolting

1b to 14b

TITLING
MOMENT

TITLING
MOMENT

500

kN.m.

kN.m.

2500

2000

400

14b

300

1500

7b

13b

6b

200

1000

5b

12b
11b
10b
9b

4b
3b

100

500

2b

8b

1r

2r

3r

4r

5r

6r

7r

kN

0
250

500

750

1000

1250

8r

0
0

1500

1000

Range 114 to 1094 mm

Figure A

12r

10r

AXIAL
LOAD

1b

0

14r

11r

13r

AXIAL
LOAD

9r

2000

kN

3000

4000

5000

Range 1204 to 1904 mm

How to use the limit curve

Figure B

• Select for one bearing the associated load curve
• The solid line shows the utilization limit curve for the raceways
• The stippled line shows the utilization limit curve for the bolting
* Item number of the relevant curve in the static limited load graph for raceway and bolting

Main dimensions
De

Dm

Fixing holes
Di

mm

503,3
640,3
742,3
838,1
950,1
1046,1
1198,1
1338
1448
1558
1668
1791
1901
2073,4

Fe

he

Ne

Fi

Gear teeth
hi

Ni

D

m

Tooth force
Z

mm

414
544
644
744
844
944
1094
1204
1314
1424
1534
1644
1754
1904

342
472
572
672
772
872
1022
1119
1229
1339
1449
1536
1646
1796

455
585
685
785
885
985
1135
1257
1367
1477
1587
1708
1818
1968

Norm.
Tooth

Max.
Tooth
force

kN

M12
M12
M12
M12
M12
M12
M12
16
16
16
16
22
22
22

20
28
32
36
36
40
44
45
50
54
60
54
60
64

368
498
598
698
798
898
1048
1151
1261
1371
1481
1580
1690
1840

14
14
14
14
14
14
14
16
16
16
16
22
22
22

24
32
36
40
40
44
48
45
50
54
60
54
60
64

495
630
732
828
936
1032
1184
1310
1420
1530
1640
1760
1870
2030

5
6
6
6
8
8
8
10
10
10
10
10
10
14

99
105
122
138
117
129
148
131
142
153
164
176
187
145

17
23
23
23
32
32
32
49
49
49
49
49
49
69

Mass

Sktech
Fig N°

Kg

31
42
42
42
57
57
57
88
88
88
88
88
88
124

31
43
52
59
71
77
91
135
147
159
171
211
225
270

Basic load rating
axial
dyn. C

axial
stat. Co

curves*
raceways
(r)

bolt
(b)

Designation

1b
2b
3b
4b
5b
6b
7b
8b
9b
10b
11b
12b
13b
14b

RKS.061.20.0414
RKS.061.20.0544
RKS.061.20.0644
RKS.061.20.0744
RKS.061.20.0844
RKS.061.20.0944
RKS.061.20.1094
RKS.061.25.1204
RKS.061.25.1314
RKS.061.25.1424
RKS.061.25.1534
RKS.061.25.1644
RKS.061.25.1754
RKS.061.30.1904

kN

A
A
A
A
A
A
A
B
B
B
B
B
B
B

169
188
200
211
222
231
244
371
383
395
406
416
424
571

560
740
880
1010
1150
1280
1490
1943
2124
2304
2485
2666
2847
4048

1r
2r
3r
4r
5r
6r
7r
8r
9r
10r
11r
12r
13r
14r

Gear not hardened
Bearings delivered without centering
Bearings are not delivered full of grease and consequently must be fully relubricated with WCB LGEP2 or equivalent before the machine is
running. Material : C 45E => curves N° 1 to 7 – 42 Cr Mo4 => curves N° 8 to 14

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