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    Series Q-Single Row Ball Slewing Bearing
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    Series Q-Single Row Ball Slewing Bearing-Internal gear


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    Characteristic of structure, performance and application
    The single row four point contact ball slewing bearing (slewing ring slew gear turntable bearing swing bearing ) is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four point, it can bear the axial force, radial force and the tilting moment at the same time.

    It can be used for slewing conveyer, welding manipulator, light & medium duty crane, excavator, and other construction machinery.

    Note:

    1. n1 is the nos of lubricating holes.Oil cup M10×1JB/T7940.1~JB/T7940.2.The Oil nipple's    location can be change according to the user's application.
    2. n-φcan change to tapped hole,the diameter of tapped hole is M,depth is 2M.
    3. The tangential tooth force in the form is the max tooth force,the nominal tangential tooth force is 1/2 of the max one.
    4. "K" is addendum reduction coefficient.

    No.

    Model

     

    Mounting Dimensions

    Structural Dimension

    Gear data

    Internal gear

    H

    Du

    Dn

    n

    Through Hole A

    Screw hole
      B/C/D

    n1

    h

    B

    m

    Internal gear x=+0.5

    de

    z

    Weight

    D

    d

    φ

    d1

    T

     

     

    mm

     

    mm

    mm

    mm

     

    kg

    1

    QN.315.20

    408

    224

    60

    370

    260

    10

    17

    M16

    24

    2

    10

    40

    3

    207

    70

    34

    QN.315.20A

    4

    200

    51

    35

    2

    QN.355.20

    448

    264

    60

    410

    300

    10

    17

    M16

    24

    2

    10

    40

    3

    246

    84

    39

    QN.355.20A

    4

    240

    61

    40

    3

    QN.400.20

    493

    310

    60

    455

    345

    12

    17

    M16

    24

    2

    10

    40

    4

    288

    73

    44

    QN.400.20A

    5

    280

    57

    46

    4

    QN.450.20

    543

    360

    60

    505

    395

    12

    17

    M16

    24

    2

    10

    40

    4

    336

    85

    50

    QN.450.20A

    5

    330

    67

    52

    5

    QN.500.20

    593

    410

    60

    555

    445

    14

    17

    M16

    24

    2

    10

    40

    5

    385

    78

    55

    QN.500.20A

    6

    378

    64

    57

    6

    QN.560.20

    656

    468

    70

    618

    502

    14

    17

    M16

    30

    2

    10

    50

    4

    440

    111

    76

    QN.560.20A

    5

    435

    88

    77

    7

    QN.630.20

    726

    538

    70

    688

    572

    16

    17

    M16

    30

    2

    10

    50

    4

    512

    129

    84

    QN.630.20A

    5

    505

    102

    86

    8

    QN.710.20

    806

    618

    70

    768

    652

    18

    17

    M16

    30

    2

    10

    50

    5

    585

    118

    97

    QN.710.20A

    6

    582

    98

    97

    9

    QN.800.20

    896

    708

    70

    858

    742

    20

    17

    M16

    30

    2

    10

    50

    6

    672

    113

    110

    QN.800.20A

    8

    664

    84

    111

    10

    QN.800.25

    908

    694

    78

    864

    736

    18

    22

    M20

    36

    2

    10

    58

    6

    654

    110

    142

    QN.800.25A

    8

    648

    82

    142

    11

    QN.900.25

    1008

    794

    78

    964

    836

    20

    22

    M20

    36

    2

    10

    58

    8

    744

    94

    163

    QN.900.25A

    10

    740

    75

    162

    12

    QN.1000.25

    1108

    894

    78

    1064

    936

    24

    22

    M20

    36

    2

    10

    58

    8

    848

    107

    178

    QN.1000.25A

    10

    840

    85

    179

    13

    QN.1000.32

    1124

    880

    90

    1074

    926

    24

    24

    M22

    40

    2

    10

    70

    8

    832

    105

    230

    QN.1000.32A

    10

    830

    84

    227

    14

    QN.1120.32

    1244

    1000

    90

    1194

    1046

    28

    24

    M22

    40

    4

    10

    70

    10

    940

    95

    263

    QN.1120.32A

    12

    936

    79

    262

    15

    QN.1250.32

    1374

    1130

    90

    1324

    1176

    32

    24

    M22

    40

    4

    10

    70

    10

    1070

    108

    294

    QN.1250.32A

    12

    1068

    90

    290

    16

    QN.1400.32

    1524

    1280

    90

    1474

    1326

    36

    24

    M22

    40

    4

    10

    70

    12

    1212

    102

    333

    QN.1400.32A

    14

    1204

    87

    336

    17

    QN.1250.40

    1394

    1110

    102

    1336

    1164

    32

    26

    M24

    45

    4

    12

    80

    10

    1050

    106

    388

    QN.1250.40A

    12

    1044

    88

    388

    18

    QN.1400.40

    1544

    1260

    102

    1486

    1314

    36

    26

    M24

    45

    4

    12

    80

    12

    1188

    100

    444

    QN.1400.40A

    14

    1190

    86

    434

    19

    QN.1600.40

    1744

    1460

    102

    1686

    1514

    40

    26

    M24

    45

    4

    12

    80

    12

    1392

    117

    509

    QN.1600.40A

    14

    1386

    100

    511

    20

    QN.1800.40

    1944

    1660

    102

    1886

    1714

    44

    26

    M24

    45

    4

    12

    80

    14

    1582

    114

    576

    QN.1800.40A

    16

    1568

    99

    591

    21

    QN.1600.50

    1766

    1438

    124

    1704

    1496

    40

    30

    M27

    50

    4

    12

    100

    12

    1368

    115

    714

    QN.1600.50A

    14

    1358

    98

    723

    22

    QN.1800.50

    1966

    1638

    124

    1904

    1696

    44

    30

    M27

    50

    4

    12

    100

    14

    1568

    113

    794

    QN.1800.50A

    16

    1552

    98

    818

    23

    QN.2000.50

    2166

    1842

    124

    2104

    1896

    48

    30

    M27

    50

    6

    12

    100

    16

    1760

    111

    891

    QN.2000.50A

    18

    1746

    98

    913

    24

    QN.2240.50

    2406

    2078

    124

    2344

    2136

    54

    30

    M27

    50

    6

    12

    100

    16

    1984

    125

    1044

    QN.2240.50A

    18

    1980

    111

    1041

    25

    QN.2500.50

    2666

    2342

    124

    2604

    2396

    60

    30

    M27

    50

    6

    12

    100

    18

    2250

    126

    1132

    QN.2500.50A

    20

    2240

    113

    1148

    26

    QN.2500.60

    2696

    2308

    150

    2626

    2374

    60

    33

    M30

    56

    6

    14

    122

    18

    2214

    124

    1621

    QN.2500.60A

    20

    2200

    111

    1654