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Four-point Contact Ball Slewing Bearings
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Parameters

          

 

Designation

Boundary Dimension

Mounting Hole Size

Gear Data

Basic load

 ratings

Mass

No Gear

External Gear

Internal Gear

D

d

H

D1

D2

n

Φ

m

Da

Z

da

Z

b

x

Coa(10KN)

(Kg)
010.30.500 011.30.500 013.30.500 602 398 80 566 434 20 18 5 630 123 365 74 60 0.5 129 75.8
  012.30.500 014.30.500 602 398 80 566 434 20 18 6 630 102 366 62 60 0.5 129 75.8
010.30.560 011.30.560 013.30.560 662 458 80 626 494 20 18 5 690 135 425 86 60 0.5 144 94
  012.30.560 014.30.560 662 458 80 626 494 20 18 6 690 112 427 72 60 0.5 144 94
010.30.630 011.30.630 013.30.630 732 528 80 696 564 24 18 6 774 126 492 83 60 0.5 187 110
  012.30.630 014.30.630 732 528 80 696 564 24 18 8 776 94 488 62 60 0.5 187 110
010.30.710 011.30.710 013.30.710 812 608 80 776 644 24 18 6 852 139 570 86 60 0.5 212 120
  012.30.710 014.30.710 812 608 80 776 644 24 18 8 856 104 568 72 60 0.5 212 120
010.40.800 011.40.800 013.40.800 922 678 100 878 722 30 22 8 968 118 632 80 80 0.5 313 256
  012.40.800 014.40.800 922 678 100 878 722 30 22 10 970 94 630 64 80 0.5 313 256
010.40.900 011.40.900 013.40.900 1022 778 100 978 822 30 22 8 1064 130 736 93 80 0.5 355 240
  012.40.900 014.40.900 1022 778 100 978 822 30 22 10 1070 104 730 74 80 0.5 355 240
010.40.1000 011.40.1000 013.40.1000 1122 878 100 1078 922 36 22 10 1190 116 820 83 80 0.5 394 305
  012.40.1000 014.40.1000 1122 878 100 1078 922 36 22 12 1188 96 816 69 80 0.5 394 305
010.40.1120 011.40.1120 013.40.1120 1242 998 100 1198 1042 36 22 10 1300 127 940 95 80 0.5 443 300
  012.40.1120 014.40.1120 1242 998 100 1198 1042 36 22 12 1308 106 936 79 80 0.5 443 300
010.45.1250 011.45.1250 013.45.1250 1390 1110 110 1337 1163 40 26 12 1449.5 118 1048.8 88 90 0.5 554 420
  012.45.1250 014.45.1250 1390 1110 110 1337 1163 40 26 14 1453.2 101 1041.6 75 90 0.5 554 420
010.45.1400 011.45.1400 013.45.1400 1540 1260 110 1487 1313 40 26 12 1608 131 1188 100 90 0.5 617 480
  012.45.1400 014.45.1400 1540 1260 110 1487 1313 40 26 14 1610 112 1190 86 90 0.5 617 480
010.45.1600 011.45.1600 013.45.1600 1740 1460 110 1687 1513 45 26 14 1820 127 1386 100 90 0.5 702 550
  012.45.1600 014.45.1600 1740 1460 110 1687 1513 45 26 16 1824 111 1376 87 90 0.5 702 550
010.45.1800 011.45.1800 013.45.1800 1940 1660 110 1887 1713 45 26 14 2016 141 1568 113 90 0.5 793 610
  012.45.1800 014.45.1800 1940 1660 110 1887 1713 45 26 16 2016 123 1568 99 90 0.5 793 610
010.60.2000 011.60.2000 013.60.2000 2178 1825 144 2110 1891 48 33 16 2272 139 1728 109 120 0.5 1210 1100
  012.60.2000 014.60.1400 2178 1825 144 2110 1891 48 33 18 2268 123 1728 97 120 0.5 1210 1100
010.60.2240 011.60.2240 013.60.2240 2418 2065 144 2350 2131 48 33 16 2496 153 1984 125 120 0.5 1350 1250
  012.60.2240 014.60.2240 2418 2065 144 2350 2131 48 33 18 2502 136 1980 111 120 0.5 1350 1250
010.60.2500 011.60.2500 013.60.2500 2678 2325 144 2610 2391 56 33 18 2772 151 2232 125 120 0.5 1500 1400
  012.60.2500 014.60.2500 2678 2325 144 2610 2391 56 33 20 2780 136 2220 112 120 0.5 1500 1400
010.60.2800 011.60.2800 013.60.2800 2978 2625 144 2910 2691 56 33 18 3078 168 2520 141 120 0.5 1680 1600
  012.60.2800 014.60.2800 2978 2625 144 2910 2691 56 33 20 3080 151 2520 127 120 0.5 1680 1600
010.75.3150 011.75.3150 013.75.3150 3376 2922 174 3286 3014 56 45 20 3480 171 2820 142 150 0.5 2380 2800
  012.75.3150 014.75.3150 3376 2922 174 3286 3014 56 45 22 3476 115 2816 129 150 0.5 2380 2800
010.75.3550 011.75.3550 013.75.3550 3776 3322 174 3686 3414 56 45 20 3880 191 3220 162 150 0.5 2690 3200
  012.75.3550 014.75.3550 3776 3322 174 3686 3414 56 45 22 3894 174 3212 147 150 0.5 2690 3200
010.75.4000 011.75.4000 013.75.4000 4226 3772 174 4136 3864 60 45 22 4334 194 3652 167 150 0.5 3020 3600
  012.75.4000 014.75.4000 4226 3772 174 4136 3864 60 45 25 4350 171 3650 147 150 0.5 3020 3600
010.75.4500 011.75.4500 013.75.4500 4726 4272 174 4636 4364 60 45 22 4835.6 217 4166.8 190 150 0.5 3410 4000
  012.75.4500 014.75.4500 4726 4272 174 4636 4364 60 45 25 4845 191 4160 167 150 0.5 3410 4000

 

Description

The design’s of all these slewing rings are based on standard structures; LYNBC can design and manufacture many other similar structures in accordance to the special and particular requirements of their customers. If our customers have specific requests then the customer should identify the structure, and mounting dimensions that are required. Please contact the LYNBC Technical center if you need any assistance in this area.

 Four-point contact ball slewing bearing

LYNBC Four-point contact ball slewing bearing can carry axial loads, tilting moment and radial loads all at the same time. Almost all steel balls will carry load under the combined action of axial load and tilting moment load. Steel balls are in contact with the raceway of outer ring and inner on a single-point when carrying pure axial load.

When radial loads exceed a certain value there would be two points respectively for the contacting balls within the outer and inner raceway. Meanwhile, wear and friction moment would be large. The tilting moment and radial force loading in any kind of working conditions allow the contact angle to be adjusted accordingly.

LYNBC Four-point contact ball slewing bearing in the main consist of a inner ring, outer ring, a single row of steel balls, and a cage (or spacing block).

LYNBC Four-point contact ball slewing bearing inner ring, outer ring have integral and split structure. The rigidity of the integral rings is relatively good in holding its rigidity. The split structure is fastened by bolts, this facilitates for a more convenient adjustment process.

Normally LYNBC Four point contact ball slewing bearing have cages (or spacing blocks). The full ball types has a larger load carrying capacity. In some situations this type would be selected for heavy loading applications. However, this design has a high frictional resistance, this could cause nicks on all surface.

The mounting needs will suit mounting holes that are designed as straight hole, counter hole, thread blind hole, or thread through hole and etc.

This contact ball design slewing bearing is suitable under axial load, tilting moment and small frictional resistance applications. The contact mounting surface must have adequate radial rigidity.

The basic structures of LYNBC four-point contact ball slewing bearing as below:

Without gear

External gear

Internal gear

 

▲   The design’s of all these slewing bearing are based on standard structures; LYNBC can design and manufacture many other similar structures in accordance to the special and particular requirements of their customers’. If our customer’s have specific requests then the customer should identify the structure, and mounting dimensions that are required. Please contact the LYNBC Technical Center if you need any assistance in this area.

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