/ Single row roller slewing bearings

External Gear Slewing Bearing

1.Product Introduction: Slewing bearings with an integrated gear ring on the outer ring. The gears are located on the outer side of the outer ring, which is convenient for meshing with the motor gears, and is suitable for open driving scenarios.
2.Structure Type: It has an annular structure. The outer side of the outer ring is machined with straight or helical teeth (module 2 - 12). The inner and outer rings have double raceways, with built-in steel balls or rollers, nylon or steel cages, and seals on both sides.
3.Size Range: Outer ring diameter: 500 - 3500mm, outer ring gear ring diameter: 520 - 3550mm, height: 30 - 100mm.
4.Material: Inner ring / outer ring: 50Mn, 42CrMo; rolling elements: GCr15 bearing steel, GCr15SiMn (optional for impact resistance); seals: nitrile rubber, fluororubber (optional for oil and high temperature resistance).
5.Application Fields: Tower cranes, large amusement equipment (observation wheels), port portal cranes, wind power yaw systems.
6.Key Inspection Items: External gear pitch error, depth of carburized layer, slewing resistance.

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Product Description

Data Sheet

High-Performance External Gear Slewing Bearings for Heavy-Duty Applications

External Gear Slewing Bearings are engineered to handle slow-turning, high-load rotational movements in demanding industrial environments. At LUOYANG INNO BEARING CO., LTD, we specialize in manufacturing custom solutions for industries like port machinery, renewable energy, and medical equipment. Our bearings feature an external gear ring that meshes seamlessly with motor gears, ensuring reliable power transmission in open driving scenarios. With over 30 years of expertise, we deliver precision-engineered bearings that withstand extreme temperatures, heavy cyclic loads, and corrosive environments.

product-750-750

Why Choose Our External Gear Slewing Bearings?

1. Precision Engineering for Diverse Industries

Our products are designed for applications requiring exceptional accuracy and durability:

Port & Shipbuilding: DNV-GL-certified bearings resist saltwater corrosion (1,000+ hours ASTM B117 testing) and handle dynamic loads up to 15,000 kN.
Medical Equipment: P4-grade precision with <25dB noise for surgical robots and MRI systems.
Wind Turbines: GL2010-certified designs endure -40°C to +80°C with 200+ million cycle fatigue life.

2. Customization in Record Time

Need a φ3000mm bearing with helical gears? We deliver:

15–20 Days Lead Time for large custom orders (30% faster than industry average).
Flexible Gear Profiles: Choose from spur/helical gears (module 2–30) matching AGMA/DIN/ISO standards.

3. Built to Last Under Extreme Conditions

Material Excellence: 42CrMo/50Mn steel components hardened to HRC 58–62.
Heat Resistance: Operate continuously at 500°C with specialized coatings.
IP67 Sealing: Blocks dust, water, and debris in harsh environments.

product-1406-300

Technical Specifications

Parameter	Specification
Outer Diameter	500–3500mm (Custom up to 5000mm)
Gear Type	External Spur/Helical (Module 2–12)
Load Capacity	Radial: Up to 10,000 kN; Axial: 8,000 kN
Precision Grade	P4/P5 (ISO 492)
Temperature Range	-30°C to +150°C
Material	50Mn, 42CrMo, GCr15 Bearing Steel

Where Our Bearings Excel?

Port Cranes & Offshore Platforms

Our PortSpeed Series reduces crane downtime by 40% with:

Rapid Replacement: Pre-machined mounting holes for 48-hour installation.
IoT Integration: Real-time load monitoring via built-in sensors.

Wind Turbine Yaw Systems

The WindMax Series ensures 25+ years of reliable operation:

Hurricane Resilience: Withstands 80m/s wind speeds.
Low-Temp Grease: Maintains lubrication at -40°C.

Medical Imaging Systems

MediGlide Series bearings enable silent, precise rotation:

Non-Magnetic Options: ZrO2 ceramic for MRI compatibility.
Cleanroom Manufacturing: ISO Class 5 standards.

product-750-1000

Quality Assurance You Can Trust

Every external gear slewing bearing undergoes:

1. Material Testing: Spectrometer checks for alloy purity.

2. Heat Treatment Validation: Case depth ≥4mm for wear resistance.

3. 12+ Performance Tests: Including 10,000-hour lifespan simulation.

Result: 99.9% defect-free rate since 2020.

How We Customize Your Solution?

1. Consultation: Share your load, speed, and environmental needs.

2. 3D Modeling: Receive FEM-optimized designs in 72 hours.

3. Production: Track progress via weekly video updates.

4. Delivery: Fast global shipping with customs support.

FAQ

Q: Can you modify existing gear tooth profiles?

Yes! We replicate AGMA, DIN, or ISO profiles for retrofits.

Q: How do your bearings handle molten slag exposure?

Special epoxy coatings protect against splashes up to 500°C.

Q: What's the lead time for a φ4000mm custom bearing?

18 days for standard configurations; expedited options available.

Q: Do you provide installation support?

Free video guidance or on-site engineers for complex installations.

Contact Us

Need a Reliable External Gear Slewing Bearing Partner?

Email us at sales@inno-bearing.com for quotes, technical specs, or emergency orders.

Four-point Contact Ball Slewing Bearing-with External Teeth
d1060～2500mm
Boundary Dimension			Bearing Type	Related Dimension												Gear Parameter					Weight
d	D	T		D1	d1	d2	H	h	DwP	n1	n2	n3	φ1	φ2	φ3	da	b	m	Z	X	kg≈
1060	1335	109	1787/1060G	1295	1105	1198	100	9	1200	4	24	24	M8X1	22	M20	1388	80	10	138	-0.6	407
1060	1335	109	1787/1060G2	1295	1105	1198	100	9	1200	4	24	24	M8X1	22	M20	1388	80	10	138	-0.6	389
1075	1424	120	D1787/1075	1310	1130	1218	90	15	1200	4	36	36	M8X1	26	26	1424	90	8	176	0	463
1075	1365	130	1787/1075K	1310	1130	1218	105	15	1200	-	36	36	-	24	24	1420	120	10	140	0	550
1075	-	130	1787/1075K1	1310	1130	1218	105	10	1200	3	36	36	M10X1	24	M24	1420	120	10	140	0	549
1075	1365	120	1787/1075G2	1310	1130	1218	105	15	1200	4	36	36	M10X1	24	24	1424.9	90	10	138	1.4	463
1075	1365	120	1087/1075G2K	1310	1130	1218	105	15	1200	4	36	36	M8X1	26	M24	1424	90	8	176	0	463
1110	1390	110	011.45.1250.12	1337	1163	1248	100	10	1250	5	40	40	M10X1	26	26	1449.6	90	12	118	0.5	405
1155	-	80	1787/1155	1316	1195	1253	54	9	1255	6	42	42	M10X1	22	18	1398	71	10	138	0	214
1208	1551	130	011.50.1390.03	1500	1280	1392	113	13	1390	4	48	48	M10X1	30	30	1604	85	10	157	0.75	652
1260	1540	110	011.45.1400.12	1487	1313	1398	100	10	1400	5	40	40	M10X1	22	M20	1605.6	90	12	131	0.5	468
1260	1540	110	011.45.1400.12K	1487	1313	1398	100	10	1400	5	40	40	M10X1	22	M20	1605.6	90	12	131	0.5	481
1260	1540	110	011.45.1400.12K1	1487	1313	1402	100	10	1398	5	40	40	M14X1.5	26	26	1605.6	90	12	131	0.5	482
1260	1596	102	D1787/1260	1535	1330	1428	86	19.5	1430	5	30	30	M10X1	26	M24	1650	60	6	273	0	397
1278	1595	120	011.35.1435.12	1535	1335	1436	105	15	1435	2	36	36	M16X1.5	26	26	1655.5	90	12	134	1.15	636
1305	-	90	1787/1305	1510	1345	1448	71	18	1450	6	-	-	M8X1	-	-	1600	71	10	158	0	258
1330	1475	82.4	1787/1300K2	1510	1362	1451	70	12.4	4224	6	24	24	M10X1	18.5	18.5	1584	70	9	174	0	280
1388	-	89	011.30.1500.04	1568	1432	1501	63	9	1500	6	48	48	M10X1	22	22	1677.6	80	12	137	0.5	327
1410	-	85	E1788/1410G2K1	1590	1454	1524.5	70	15	1526.5	-	30	30	-	18	M16	1676.4	70	10	160	0	314
1410	1700	85	1788/1410G2K	1590	1454	1524.6	70	15	1526.5	3	36	36	M10X1	17.5	M16	1700	70	10	168	0	335
1410	-	85	1788/1410G2	1590	1454	1524.6	70	15	1526.5	-	36	36	-	17.5	M16	1676.4	70	10	160	0	312
1410	-	85	1788/1410	1590	1454	1524.6	70	15	1526.5	-	36	36	-	17.5	M16	1676.4	70	10	160	0	312
1458	1932	152	1787/1460	1745	1520	1630	135	35	1632	6	40	40	ZG1/4	17.5	26	1932	60	12	159	0	865
1458	1800	152	1787/1460K	1745	1520	1681	135	35	1632	6	40	40	ZG1/4	26	26	1932	60	12	159	0	908
1460	1747	110	011.45.1600.12K	1687	1513	1598	100	10	1600	6	40	40	ZG1/4	26	26	1817.2	90	14	127	0.5	651
1460	1730	110	012.45.1600.12K	1687	1513	1598	100	10	1600	5	20	20	M10X1	M24	M24	1808	90	16	111	0	559
1460	1730	110	012.45.1600.12K1	1687	1513	1598	100	10	1600	5	20	20	M10X1	M24	M24	1808	90	16	111	0	569
1500	1860	160	011.50.1682.03/P5	1790	1575	1680	140	5	1682	4	48	48	M18X1.5	33	33	1992	140	12	164	0	1276
1634	1964	124	012.50.1800.03	1904	1696	1802	112	12	1800	4	44	44	M10X1	30	30	2048	100	16	127	-0.5	824
1660	1940	110	012.45.1800.03	1887	1713	1798	100	10	1800	5	45	45	M10X1	26	26	2012.8	90	16	123	0.5	644
1660	1940	140	011.45.1800.03K/P5	1887	1713	1798	130	10	1800	3	45	45	M10X1	26	M24	2014	120	14	141	0.5	805
1660	-	110	011.45.1800.03K/P5	1887	1713	1798	100	10	1800	5	45	45	M10X1	26	26	2016	100	14	141	0.5	684
1628	1927	130	1787/1628G2K1	1875	1680	1774	115	15	1776	4	36	36	M10X1	26	26	2002	105	14	141	0	815
1640	2050	160	1787/1640K	1990	1710	1844	132	20	1850	2	30	30	M14X1.5	28	28	2108	105	10	210	-0.6	1264
1700	1945	120	1787/1700	1900	1750	1825	110	10	1835	4	24	24	M10X1	21	M18	1970	35	5	392	0	516
1700	2052	100	1789/1700KM	1980	1780	1878	90	10	1880	4	24	24	M14X1.5	M18	20	2080	50	5	414	0	678
1825	2178	144	011.40.2000.12	2110	1891	1995	132	12	2000	8	48	48	M10X1	33	33	2268.8	120	16	139	0.5	1155
1825	2178	144	011.60.2000.12	2110	1891	1995	132	12	2000	8	48	48	M10X1	33	33	2268.8	120	16	139	0.5	1300
1825	2160	144	011.60.2000.12K	2110	1891	1995	132	12	2000	8	45	45	M10X1	33	33	2240	120	16	139	-0.5	970
1825	2178	144	012.60.2000.12	2110	1891	1995	132	12	2000	8	48	48	M10X1	33	33	2268	120	18	123	0.5	1217
1877	2125	111	1788/1877	2068	1927	2001	69	9	2000	5	40	40	M10X1	22	M20	2195.2	101	14	154	0.5	600
1948	-	130	1787/1948	2235	2016	2124	108	10	2126	8	48	48	M10X1	33	M30	2390	120	18	130	0.5	1115
2050	2418	160	011.60.2240.03K/P5	2350	2131	2238	140	0	2240	4	48	48	M18X1.5	33	33	2558.4	140	12	212	-0.4	1787
2063	-	144	012.60.2240.03K	2350	2131	2239	135	9	2240	11	54	54	M10X1	33	M30	2498.4	135	18	136	0.5	1320
2065	2418	144	012.60.2240.12	2350	2131	2238	132	12	2240	8	48	48	M10X1	33	33	2498.4	120	18	136	0.5	1388
2325	2678	144	011.40.2500.12	2610	2391	2498	132	12	2500	8	56	56	M10X1	33	33	2769.7	120	18	151	0.5	1533
2325	2678	144	011.60.2500.12	2610	2391	2498	132	12	2500	8	56	56	M10X1	33	33	2772	120	18	151	0.5	1460
2325	2678	144	011.50.2500.12	2610	2391	2497.5	132	12	2500	6	54	54	ZG1/4	33	33	2768.4	120	18	151	0.5	1507
2325	2678	144	012.50.2500.03	2610	2391	2502	132	12	2500	8	56	56	M10X1	M30	33	2800	120	20	138	0	1625
2325	2678	144	012.60.2500.12	2610	2391	2498	132	12	2500	8	56	56	M10X1	33	33	2780	120	20	136	0.5	1460
2500	-	205	012.70.2700.03	2835	2565	2704	180	25	2700	8	68	67	M10X1	33	33	3000	180	20	148	0	2665
2617	2919	137	1788/2617	2850	2677	2765	92	12	2764	7	84	84	M10X1	30	M27	3002.4	120	18	164	0.5	1204
2617	2919	137	1788/2617K	2850	2677	2765	92	12	2764	7	84	84	M10X1	30	M27	3002.4	120	18	164	0.5	1204
2625	2978	144	012.60.2800.03	2910	2691	2798	132	12	2800	8	56	56	M10X1	M30	M30	3080	120	20	151	0.5	1670
2625	2978	144	012.60.2800.12	2910	2691	2798	132	12	2800	8	56	56	M10X1	33	33	3076	120	20	151	0.5	1660
2625	2978	144	012.60.2800.11K	2910	2691	2798	132	12	2800	8	56	56	M10X1	33	33	3080	120	20	151	0.5	1670
2635	3332	270	1787/2635G2	3240	2755	2988	235	35	2998	12	36	36	M10X1	39	39	3440	200	20	170	0	6220
2650	285	100	1787/2650G2	2850	2700	2712	80	10	2775	6	48	48	ZG1/4	M20	M20	2949.6	80	12	244	0	751
2800	3260	220	012.75.3030.03	3190	2870	3021	198	22	3030	6	60	60	M10X1	39	39	3360	160	20	166	0	3510
2833	3164	145	1787/2833	3087	2899	2995	107	20	2993	12	60	60	M10X1	33	33	3256	124	20	160	0.5	1627
2922	3376	174	011.75.3150.03	3286	3014	3147.5	162	12	3150	8	56	56	M10X1	45	45	3480	150	20	171	0.5	3182
2922	3376	174	012.75.3150.03	3286	3014	3147.5	162	12	3150	6	56	56	6	45	45	3471.6	150	20	155	0.5	3053
3250	3816	175	1787/3250	3600	3340	3470	160	35	3470	12	72	72	M10X1	M36	39	3816	160	24	157	0	3273
3322	3776	134	012.60.3550.12/P6	3686	3414	3548	122	12	3550	8	40	40	M10X1	33	33	3889.6	110	22	174	0.5	2814
4810	5277	210	1787/4810	5187	4900	5036	165	15	5044	8	60	60	ZG1/4	M42	45	5400	180	25	214	0	5489