A four-point contact ball slewing bearing makes it easy to simplify machine designs that have a combination of radial, thrust and moment loads because it can handle all three simultaneously. They are primarily used for slow to moderate-speed applications, or where oscillatory movement is predominant.
A single four-point contact bearing usually makes a second bearing unnecessary, which provides some very important benefits:
space savings
weight savings
cost savings
rigidity and accuracy
faster installation
less maintenance
integral mounting holes, gears, etc.
Thanks to a unique ball path geometry that produces twice as many contact points, a four-point contact bearing can resist radial, thrust and moment loads individually or in any combination. It has one row of balls with an inner race and an outer race. The ball grooves are generated from two centers, with each radius slightly larger than the ball radius. Contact angles are typically 35° off the radial centerline, but can be varied to suit the application.
To get drawing (pdf),please clik on Model.
No | External gear | Dimensions (mm) | Mounting Dimensions (mm) | Structural Dimension (mm) | Gear data | Gear force 10^4 KN | weight kg | ||||||||||||||||
D | d | H | D1 | D2 | n | Φ | dm | L | n1 | D3 | d1 | H1 | h | b | x | M | De | z | N | T | |||
1 | | 280 | 120 | 60 | 248 | 152 | 12 | 16 | M14 | 28 | 2 | 201 | 199 | 50 | 10 | 40 | 0 | 3 | 300 | 98 | 1.5 | 2.1 | 24 |
2 | | 304 | 144 | 60 | 272 | 176 | 12 | 16 | M14 | 28 | 2 | 225 | 223 | 50 | 10 | 40 | 0 | 3 | 321 | 105 | 1.5 | 2.1 | 25 |
3 | | 330 | 170 | 60 | 298 | 202 | 18 | 16 | M14 | 28 | 2 | 251 | 249 | 50 | 10 | 40 | 0 | 4 | 352 | 86 | 2.1 | 2.8 | 30 |
4 | | 360 | 200 | 60 | 328 | 232 | 18 | 16 | M14 | 28 | 2 | 281 | 279 | 50 | 10 | 40 | 0 | 4 | 384 | 94 | 1.5 | 2.8 | 34 |
5 | | 408 | 222 | 70 | 372 | 258 | 20 | 18 | M16 | 32 | 2 | 316 | 314 | 60 | 10 | 50 | 0 | 5 | 435 | 85 | 2.9 | 4.4 | 52 |
6 | | 448 | 262 | 70 | 412 | 298 | 20 | 18 | M16 | 32 | 2 | 356 | 354 | 60 | 10 | 50 | 0 | 5 | 475 | 93 | 2.9 | 4.4 | 59 |
7 | | 493 | 307 | 70 | 457 | 343 | 20 | 18 | M16 | 32 | 2 | 401 | 399 | 60 | 10 | 50 | 0 | 6 | 528 | 86 | 3.5 | 5.3 | 69 |
8 | | 543 | 357 | 70 | 507 | 393 | 20 | 18 | M16 | 32 | 2 | 451 | 449 | 60 | 10 | 50 | 0 | 6 | 576 | 94 | 3.5 | 5.3 | 76 |
9 | | 602 | 398 | 80 | 566 | 434 | 20 | 18 | M16 | 32 | 4 | 501 | 499 498 | 70 | 10 | 60 | 0.5 | 5 | 629 | 123 | 3.7 | 5.2 | 85 |
012.25/30.500 | 6 | 628.8 | 102 | 4.5 | 6.2 | ||||||||||||||||||
10 | | 662 | 458 | 80 | 626 | 494 | 20 | 18 | M16 | 32 | 4 | 561 | 559 558 | 70 | 10 | 60 | 0.5 | 5 | 689 | 135 | 3.7 | 5.2 | 95 |
012.25/30.560 | 6 | 688.8 | 112 | 4.5 | 6.2 | ||||||||||||||||||
11 | | 732 | 528 | 80 | 696 | 564 | 24 | 18 | M16 | 32 | 4 | 631 | 629 628 | 70 | 10 | 60 | 0.5 | 6 | 772.8 | 126 | 4.5 | 6.2 | 110 |
012.25/30.630 | 8 | 774.4 | 94 | 6 | 8.3/8.2 | ||||||||||||||||||
12 | | 812 | 608 | 80 | 776 | 644 | 24 | 18 | M16 | 32 | 4 | 711 | 709 708 | 70 | 10 | 60 | 0.5 | 6 | 850.8 | 139 | 4.5 | 6.2 | 120 |
012.25/30.710 | 8 | 854.4 | 104 | 6 | 8.9/8.3 | ||||||||||||||||||
13 | | 922 | 678 | 100 | 878 | 722 | 30 | 22 | M20 | 40 | 6 | 801 | 798 | 90 | 10 | 80 | 0.5 | 8 | 966.4 | 118 | 8 | 11.1 | 220 |
012.30/40.800 | 10 | 968 | 94 | 10 | 14.1/14 | ||||||||||||||||||
14 | | 1022 | 778 | 100 | 978 | 822 | 30 | 22 | M20 | 40 | 6 | 901 | 898 | 90 | 10 | 80 | 0.5 | 8 | 1062.4 | 130 | 8 | 11.1 | 240 |
012.30/40.900 | 10 | 1068 | 104 | 10 | 14 | ||||||||||||||||||
15 | | 1122 | 878 | 100 | 1078 | 922 | 36 | 22 | M20 | 40 | 6 | 1001 | 998 | 90 | 10 | 80 | 0.5 | 10 | 1188 | 116 | 10 | 14 | 270 |
012.30/40.1000 | 12 | 1185.6 | 96 | 12 | 16.7 | ||||||||||||||||||
16 | | 1242 | 998 | 100 | 1198 | 1042 | 36 | 22 | M20 | 40 | 6 | 1121 | 1118 | 90 | 10 | 80 | 0.5 | 10 | 1298 | 127 | 10 | 14 | 300 |
012.30/40.1120 | 12 | 1305.6 | 106 | 12 | 16.7 | ||||||||||||||||||
17 | | 1390 | 1110 | 110 | 1337 | 1163 | 40 | 26 | M24 | 48 | 5 | 1252 | 1248 | 100 | 10 | 90 | 0.5 | 12 | 1449.6 | 118 | 13.5 | 18.8 | 420 |
012.35/45.1250 | 14 | 1453.2 | 101 | 15.8 | 21.9 | ||||||||||||||||||
18 | | 1540 | 1260 | 110 | 1487 | 1313 | 40 | 26 | M24 | 48 | 5 | 1402 | 1398 | 100 | 10 | 90 | 0.5 | 12 | 1605.6 | 131 | 13.5 | 18.8 | 480 |
012.35/45.1400 | 14 | 1607.2 | 112 | 15.5 | 21.9 | ||||||||||||||||||
19 | | 1740 | 1460 | 110 | 1687 | 1513 | 45 | 26 | M24 | 48 | 5 | 1602 | 1598 | 100 | 10 | 90 | 0.5 | 14 | 1817.2 | 127 | 15.8 | 21.9 | 550 |
012.35/45.1600 | 16 | 1820.8 | 111 | 18.1 | 25 | ||||||||||||||||||
20 | | 1940 | 1660 | 110 | 1887 | 1713 | 45 | 26 | M24 | 48 | 5 | 1801 1802 | 1798 | 100 | 10 | 90 | 0.5 | 14 | 2013.2 | 141 | 15.8 | 21.9 | 610 |
012.35/45.1800 | 16 | 2012.8 | 123 | 18.1 | 25 | ||||||||||||||||||
21 | 011.40/60.2000 | 2178 | 1825 | 144 | 2110 | 1891 | 48 | 33 | M30 | 60 | 8 | 2001 2002 | 1998 | 132 | 12 | 120 | 0.5 | 16 | 2268.8 | 139 | 24.1 | 33.3 | 1100 |
012.40/60.2000 | 18 | 2264.4 | 123 | 27.1 | 37.5 | ||||||||||||||||||
22 | 011.40/60.2240 | 2418 | 2065 | 144 | 2350 | 2131 | 48 | 33 | M30 | 60 | 8 | 2241 2242 | 2238 | 132 | 12 | 120 | 0.5 | 16 | 2492.8 | 153 | 24.1 | 33.3 | 1250 |
012.40/60.2240 | 18 | 2498.4 | 136 | 27.1 | 37.5 | ||||||||||||||||||
23 | 011.40/60.2500 | 2678 | 2325 | 144 | 2610 | 2391 | 56 | 33 | M30 | 60 | 8 | 2501 2502 | 2498 | 132 | 12 | 120 | 0.5 | 18 | 2768.4 | 151 | 27.1 | 37.5 | 1400 |
012.40/60.2500 | 20 | 2776 | 136 | 30.1 | 41.8 | ||||||||||||||||||
24 | 011.40/60.2800 | 2978 | 2625 | 144 | 2910 | 2691 | 56 | 33 | M30 | 60 | 8 | 2802 | 2798 | 132 | 12 | 120 | 0.5 | 18 | 3074.4 | 168 | 27.1 | 37.5 | 1600 |
012.40/60.2800 | 20 | 3076 | 151 | 30.1 | 41.8 | ||||||||||||||||||
25 | 011.50/75.3150 | 3376 | 2922 | 174 | 3286 | 3014 | 56 | 45 | M42 | 84 | 8 | 3152 | 3147 | 162 | 12 | 150 | 0.5 | 20 | 3476 | 171 | 37.7 | 52.2 | 2800 |
012.50/75.3150 | 22 | 3471.6 | 155 | 41.5 | 57.4 |