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High-Quality Internal gear single-row ball type swivel bearing Manufacturer, Service
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High-Quality Internal gear single-row ball type swivel bearing Manufacturer, Service

High-Quality Internal gear single-row ball type swivel bearing Manufacturer, Service

The gear processing is carried out on the inner circumference of the inner ring. The inner ring serves as both the load-bearing ring and the driving gear ring. The driving small gear meshes with the internal teeth of the inner ring. When the small gear rotates, it drives the inner ring to rotate. At this time, the outer ring is usually fixed to the base, and the inner ring rotates and drives the connected upper structure to rotate. 

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Product Description

Advantages

Compact Structure

Small radial dimension: The gears are positioned inward, saving external space and minimizing the overall outer diameter of the slewing bearing.

Protected Gears

The inner teeth are located inside and receive some degree of protection, making them less susceptible to direct impact from external contaminants.

Inward Center of Gravity

Sometimes this is beneficial for the stability design of the entire equipment.

Technical Characteristics

01 series of basic parameters
Serial number NO. Basic Size Configuation Size Mounting Size Structural Size Gear Data Outer Gear Data Inner Gear Data
Inner teeth D d H D1 D2 n Bolt Hole Screw Hole n1 H1 h b x m da Z da Z
Type o Type 123
D0 Ø Ø T
1 — 280 120 60 248 152 12 16 M14 28 2 50 10 40 0 3 300 98 — —
2 — 304 144 60 272 176 12 16 M14 28 2 50 10 40 0 3 321 105 — —
3 — 330 170 60 298 202 18 16 M14 28 2 50 10 40 0 4 352 86 — —
4 — 360 200 60 328 232 18 16 M14 28 2 50 10 40 0 4 384 94 — —
5 013.25.315 408 222 70 372 258 20 18 M16 32 2 60 10 50 0 5 435 85 190 40
6 013.25.355 448 262 70 412 298 20 18 M16 32 2 60 10 50 0 5 475 93 235 49
7 013.25.400 493 307 70 457 343 24 18 M16 32 2 60 10 50 0 6 528 86 276 48
8 013.25.450 543 357 70 507 393 24 18 M16 32 2 60 10 50 0 6 576 94 324 56
9 013.30.500 602 398 80 556 434 20 18 M16 32 4 70 10 60 ±0.5 5 629 123 367 74
014.30.500 6 628.8 102 368.4 62
10 013.30.560 662 458 80 626 494 20 18 M16 32 4 70 10 60 ±0.5 5 689 1355 427 86
014.30.560 6 688.8 112 428.4 72
11 013.30.630 732 528 80 696 564 24 18 M16 32 4 70 10 60 ±0.5 6 772.8 126 494.4 83
014.30.630 8 774.4 94 491.2 62
12 013.30.710 812 608 80 776 644 24 18 M16 32 4 70 10 60 ±0.5 6 850.8 139 572.4 96
014.30.710 8 854.4 104 571.2 72
13 013.40.800 922 678 100 878 722 30 22 M20 40 6 90 10 80 ±0.5 8 966.4 118 635.2 80
013.40.800 10 968 94 634 64
14 013.40.900 1022 778 100 978 822 30 22 M20 40 6 90 10 80 ±0.5 8 1062.4 130 739.2 93
014.40.900 10 1068 104 734 74
15 013.40.1000 1122 878 100 1078 922 36 22 M20 40 6 90 10 80 ±0.5 10 1188 116 824 83
014.40.1000 12 1185.6 96 820.8 69
16 013.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 90 10 80 ±0.5 10 1298 127 944 95
014.40.1120 12 1305.6 106 940.8 79
17 013.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 100 10 90 ±0.5 12 1449.6 118 1048.8 88
014.45.1250 14 1453.2 101 1041.6 75
18 013.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 100 10 90 ±0.5 12 1605.6 131 1192.8 100
014.45.1400 14 1607.2 112 1195.6 86
19 013.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 100 10 90 ±0.5 14 1817.2 127 1391.6 100
014.45.1600 16 1820.8 111 1382.4 87
20 013.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 100 10 90 ±0.5 14 2013.2 141 1573.6 112
014.45.1800 16 2012.8 123 1574.4 99
21 013.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 132 12 120 ±0.5 16 2268.8 139 1734.4 109
014.60.2000 18 2264.4 123 1735.2 97
22 013.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 132 12 120 ±0.5 16 2492.8 153 1990.4 125
014.60.2040 18 2498.4 136 1987.2 111
23 013.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 132 12 120 ±0.5 18 2768.4 151 2339.2 125
014.60.2500 20 2776 136 2228 112
24 013.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 132 12 120 ±0.5 18 3074.4 168 2527.2 141
014.60.2800 20 3076 151 2528 127
25 013.75.3150 3376 2922 174 3686 3014 56 45 M42 84 8 162 12 150 ±0.5 20 3476 171 2828 142
014.75.3550 22 3471.6 155 2824.8 129
26 013.75.3550 3776 3322 174 3686 3414 56 45 M42 84 8 162 12 150 ±0.5 20 3876 191 3228 162
014.75.3550 22 3889.6 174 3220.8 147
27 013.75.4000 4226 3772 174 4136 3864 60 45 M42 84 10 162 12 150 ±0.5 22 4329.6 194 3660.8 167
014.75.4000 25 43451 171 3660 147

Typical Application Scenarios

This design is ideal for equipment with strict installation space limitations, particularly when the maximum turning radius must be tightly controlled. Typical applications include port cranes, pile extractors, and wind turbine generators (yaw and tilt mechanisms), where compactness is essential for maneuverability and system integration.

The integrated gear-on-ring configuration eliminates the need for external gear sets by combining load-bearing and power transmission functions into a single component. This space-saving design also provides inherent protection for gear teeth against harsh environmental conditions such as salt spray, moisture, extreme temperatures, and debris contamination—ensuring long-term reliability with minimal maintenance.

By delivering both compactness and durability in demanding operating environments, this solution offers equipment manufacturers a reliable, low-maintenance alternative that extends service life while maintaining precise rotational control under complex loads.

Frequently Asked Questions

QWhat are the main space-saving benefits of this design?

The inward gear positioning significantly saves external space and minimizes the overall outer diameter of the slewing bearing, which is crucial for systems with strict radial space limits.

QHow are the gear teeth protected from damage?

Since the inner teeth are positioned internally, they receive inherent protection from environmental hazards such as debris contamination, salt spray, moisture, and extreme temperatures.

QWhat applications are best suited for these slewing bearings?

They are highly recommended for compact heavy-duty systems including port cranes, pile extractors, and wind turbine generator yaw/tilt mechanisms.

QDoes this configuration eliminate the need for extra components?

Yes. The integrated gear-on-ring setup combines power transmission and load-bearing capacities into a single component, eliminating the need for independent external gear sets.

QHow does this design benefit overall equipment stability?

By shifting the gears inward, the center of gravity is positioned closer to the center, which supports better stability design and balancing for complex machinery.

QWhat parameters are detailed in the technical characteristics table?

The table provides comprehensive structural dimensions, mounting interfaces (including bolt and screw hole layouts), configuration sizes, and inner/outer gear data for the 01 series.

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