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Double row ball slewing bearing

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Double row ball slewing bearing

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Double row ball slewing bearing

The double row ball slewing bearing has three seat rings , the steel ball and the spaces can be directly arranged into the upper and lower races. Two rows of steel balls are fitted according to the force born . Open mode fitting is extraordinary convenient .The load angles of both upper and lower race are 90°,which enable to bear large axial force and the tilting moment.

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Introduction

The double row ball slewing bearing has three seat rings , the steel ball and the spaces can be directly arranged into the upper and lower races. Two rows of steel balls are fitted according to the force born . Open mode fitting is extraordinary convenient .The load angles of both upper and lower race are 90°,which enable to bear large axial force and the tilting moment.

As the axial and radial dimension of the double row ball slewing bearing are rather large , structural is tightening and can support high static loads. They are mainly used in situations with variational load position and direction and continuously rotating . Especially suitable for tower cranes which require working radius over medium range , mobile crane and loading and unloading machinery .

Different dia PRODUCT SPECIFICATION

Model Boundary dimensions(mm) Bolt hole diameter(mm) Gear parameters(mm) Weight
Non-gear External gear Internal gear D d H D1 D2 n m Da Z da Z b X kg
020-25-500 021-25-500 023-25-500 616 384 106 580 420 20 5 645 126 355 72 60 0.5 100
022-25-500 024-25-500 616 384 106 580 420 20 6 648 105 348 59 60 0.5 100
020-25-560 021-25-560 023-25-560 676 444 106 640 480 20 5 705 138 415 84 60 0.5 115
022-25-560 024-25-560 676 444 106 640 480 20 6 708 115 408 69 60 0.5 115
020-25-630 021-25-630 023-25-630 746 514 106 710 550 24 6 792 129 480 81 60 0.5 130
022-25-630 024-25-630 746 514 106 710 550 24 8 792 96 472 60 60 0.5 130
020-25-710 021-25-710 023-25-710 826 594 106 790 630 24 6 864 141 558 94 60 0.5 140
022-25-710 024-25-710 826 594 106 790 630 24 8 864 105 552 70 60 0.5 140
020-30-800 021-30-800 023-30-800 942 658 124 898 702 30 8 984 120 616 78 80 0.5 200
022-30-800 024-30-800 942 658 124 898 702 30 10 990 96 610 62 80 0.5 200
020-30-900 021-30-900 023-30-900 1042 758 124 998 802 30 8 1088 133 712

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