CHARACTERISTIC OF STRUCTURE，PERFORMANCE AND APPLICATION
The double-row Ball slewing beraring has three seat-rings.The steel balls and the spacers may be directly arranged into the upper and lower races.Two rows of steel balls with different diameters are fitted according to the force bom.
Such open mode fitting features extraordinary convenience.The load angles of both upper and lower races are 90?which enable the bearing to bear large axial force and the tipping moment.
When the radial force is larger than 1/10 of the axail force the races should be newly designed.
As the axle and the dimension of the double-row ball slewing bearing are rather large,the bearing construction is sturdy ,hence it is especially suitable for tower cranes which require working radius over medium range,mobile cranes and loading and unloading machines.

No.

Basic Type

Configuration

size

Mounting size

sturctural

Gear

date

Ext Gear

Int Gear

weight
kg

Toothless
 D_L
mm

Ext Toothless
 D_L
mm

INt Toothless
 D_L
mm

D

d

H

D₁
mm

D₂
mm

d_n1
d_n2
mm

d_m1
d_m2
mm

L
mm

n

n₁

H₁

h

b
mm

m
mm

d_a
mm

Z

d_a
mm

Z

1

020.25.500

021.25.500

023.25.500

616

384

106

580

420

18

M16

20

4

96

26

60

5

644

126

357

72

100

022.25.500

024.25.500

6

646.8

105

350 .4

59

2

020.25.560

021.25.560

023.25.560

676

444

640

480

5

704

138

417

84

115

022.25.560

024.25.560

6

706.8

115

410.4

69

3

020.25.630

021.25.630

023.25.630

746

514

710

550

24

6

790.8

129

482.4

81

130

022.25.630

024.25.630

8

790.4

96

475.2

60

4

020.25.710

021.25.710

023.25.710

826

594

790

630

6

862.8

141

560.4

94

140

022.25.710

024.25.710

8

862.4

105

555.2

70

5

020.30.800

021.30.800

023.30.800

942

658

124

898

702

22

M20

30

6

114

29

80

8

982.4

120

619.2

78

200

022.30.800

024.30.800

10

988

96

614

62

6

020.30.900

021.30.900

023.30.900

1042

758

998

802

8

1086 .4

133

715.2

90

250

022.30.900

024.30.900

10

1088

106

714

72

7

020.30.1000

021.30.1000

023.30.1000

1142

858

1098

902

36

10

1198

117

814

82

300

022.30.1000

024.30.1000

12

1197.6

97

796.8

67

8

020.30.1120

021.30.1120

023.30.1120

1262

978

1218

1022

10

1318

129

924

93

340

022.30.1120

024.30.1120

12

1317.6

107

916.8

77

9

020.40.1250

021.40.1250

023.40.1250

1426

1074

160

1374

1126

26

M24

40

5

150

39

90

12

1497.6

122

1012.8

85

580

022.40.1250

024.40.1250

14

1495.2

104

1013.6

73

10

020.40.1400

021.40.1400

023.40.1400

1576

1224

1524

1272

12

1641.6

134

1156.8

97

650

022.40.1400

024.40.1400

14

1649.2

115

1153.6

83

11

020.40.1600

021.40.1600

023.40.1600

1776

1424

1724

1476

45

14

1845.2

129

1349.6

97

750

022.40.1600

024.40.1600

16

1852.8

113

1350.4

85

12

020.40.1800

021.40.1800

023.40.1800

1976

1624

1924

1676

14

2055.2

144

1545.6

111

820

022.40.1800

024.40.1800

16

2060.8

126

1542.4

97

13

020.50.2000

021.50.2000

023.50.2000

2215

1785

190

2149

1851

33

M30

48

8

178

47

120

16

2300.8

141

1702.4

107

1150

022.50.2000

024.50.2000

18

2300.4

125

1699.2

95

14

020.50.2240

021.50.2240

023.50.2240

2455

2025

2389

2091

16

2540.8

156

1942.4

122

1500

022.50.2240

024.50.2240

18

2552.4

139

1933.2

108

15

020.50.2500

021.50.2500

023.50.2500

2715

2285

2649

2351

56

18

2804.4

153

2203.2

123

1700

022.50.2500

024.50.2500

20

2816

138

2188

110

16

020.50.2800

021.50.2800

023.50.2800

3015

2585

2949

2651

18

3110.4

170

2491.2

139

1900

022.50.2800

024.50.2800

20

3116

153

2488

125