/ Double row ball slewing bearings

double row ball slewing bearing

1.Product Introduction: With a double-row ball bearing structure, the load-bearing capacity is 1.5 - 2 times that of single-row ball bearings, suitable for medium and heavy-load slewing equipment, and has strong anti-overturning moment performance.
2.Structure Type: It has an annular integrated structure. The inner and outer rings are equipped with double arc raceways, with two rows of steel balls (separated by spacer rings) inside, equipped with nitrile rubber or fluororubber seals on both sides, and evenly distributed mounting holes are reserved.
3.Size Range: Outer ring diameter: 500 - 3500mm, inner ring diameter: 450 - 3350mm, height: 30 - 120mm.
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: Medium-sized excavators, port portal cranes, crawler cranes, large amusement equipment.
6.Key Inspection Items: Consistency of the clearance between the two rows of balls, anti-overturning moment performance, integrity of seals.

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Product Description

Data Sheet

Double Row Ball Slewing Bearings Built for Extreme Loads & Temperatures – 30+ Years of Heavy-Duty Expertise

Double row ball slewing bearings are engineered to handle the toughest industrial challenges. With 30+ years of expertise, LUOYANG INNO BEARING CO., LTD delivers robust solutions for heavy-load, high-temperature, and precision-critical applications. Whether you're operating port cranes, metallurgical furnaces, or mining equipment, our bearings combine advanced materials and precision engineering to maximize uptime and performance.

product-1440-1080

Why Choose Us?

2x Load Capacity: Designed with dual raceways and steel balls, our bearings support 1.5–2x heavier axial, radial, and moment loads than single-row designs.
Extreme Durability: Heat-treated 42CrMo steel and GCr15 bearing balls ensure shock resistance and 50,000+ hours of service in harsh conditions.
Precision Performance: P4/P5 accuracy grades for smooth rotation (runout ≤0.05mm), ideal for medical imaging or crane slewing systems.
Customizable: Modify seals (fluoropolymer for 150°C), raceways, or mounting interfaces to fit your machinery.

Key Features & Benefits

1. Built for Heavy Industrial Demands

Our double-row angular contact ball slewing bearings excel in metallurgy, port machinery, and mining. Reinforced raceways and spacer rings distribute loads evenly, reducing wear even under 15,000kN dynamic loads.

2. High-Temperature Resistance

Specialized heat treatment and fluororubber seals enable stable operation in environments up to 150°C – perfect for tilting furnaces or steel mills.

3. Rapid Customization & Delivery

Need a non-standard size up to φ5000mm? Our modular production system delivers custom heavy-duty slewing bearings in 15–20 days – 30% faster than competitors.

4. Low Maintenance, High Reliability

Pre-lubricated, triple-lip sealed designs in double row ball slewing bearing reduce servicing needs, and IoT-enabled monitoring solutions provide real-time wear analytics to prevent unplanned downtime.

Technical Specifications

Parameter	Specification
Outer Diameter (OD)	500 – 3500mm (Custom up to 5000mm)
Load Capacity	Up to 15,000kN dynamic load
Temperature Range	-30°C to +150°C
Material	42CrMo / 50Mn steel, GCr15 bearing balls
Seals	Nitrile rubber, fluoropolymer options
Certifications	ISO 9001, CE, DNV/GL

product-1256-742

Applications Across Industries

Port Cranes: Corrosion-resistant bearings with 50% higher impact tolerance for slewing systems.
Mining Equipment: Custom oversized bearings (φ3000mm+) for rotary excavators.
Medical Imaging: Ultra-precision P4-grade bearings for smooth, silent rotation.
Wind Turbines: High-torque designs for yaw and pitch control systems.

Why Partner With Us?

✅ 30+ Years of Expertise: Specialized in heavy-load bearing solutions.

✅ 12-Stage Quality Control: 99.9% defect-free rate validated by vibration, lifespan, and load testing.

✅ Global Logistics: 48-hour dispatch for 1,000+ stocked bearings.

✅ End-to-End Support: From design to predictive maintenance planning.

product-750-1000

FAQ

Q: How long does a custom product take to produce?

A: Non-standard designs (up to φ5000mm) ship in 15–20 days.

Q: Can your bearings handle both axial and radial loads?

A: Yes! The double-row angular contact design manages combined loads efficiently.

Q: Do you provide installation support?

A: Our engineers offer on-site guidance for optimal mounting and alignment.

Contact Us

Ready to Upgrade Your Equipment?

📧 Contact Us Today: Email sales@inno-bearing.com for a quote or technical consultation.

📥 Download Brochure: Explore full specifications and case studies.

LUOYANG INNO BEARING CO., LTD – Your trusted partner for double row ball slewing bearings that endure, perform, and outlast.

Double-row Ball Slewing bearing-with Internal Teeth
d1195~2872mm
Boundary Dimension			Bearing Type	Related Dimension												Gear Parameter					Weight
d	D	T		D1	d1	d2	DwP	H	h	n1	n2	n3	φ1	φ2	φ3	da	b	m	Z	X	kg≈
1195	1550	160	8787/1195	1450	1250	1348	1350	150	10	8	48	48	ZG1/4	33	33	1142	100	10	115	0.5	796
1310	1600	135	7787/1310G	1550	1365	1414	1465	140	5	4	32	32	M10X1	26	26	1214.4	100	16	77	0.25	491
1344	1635	142	8787/1344	1575	1400	1481	1488	132	10	8	44	44	M10X1	30	30	1284	80	12	108	0.5	640
1716	2080	168	8787/1716K	2000	1800	1899	1900	158	10	9	54	54	M14X1.5	32	33	1657.3	100	12	139	0.5	1230
1716	2080	168	8787/1716K1	2000	1800	1899	1900	158	10	8	54	54	M10X1	33	33	1657.3	100	12	139	0.5	1230
1727	2053	150	8787/1727	1984	1800	1885	1892	138	12	6	54	60	12	33	33	1652	120	14	119	0	1000
2000	2400	169	8787/2000	2320	2110	2208	2215	159	10	10	64	80	M10X1	33	33	1944	120	12	163	0.5	1563
-	3040	181	024.40.2875.03	2975	2775	2835	2875	155	36	6	60	60	ZG3/8	M33	36	2600.4	145	22	118	1	1843
-	3075	198	024.45.2895.03	3005	2775	2850	2895	168	43	6	60	60	M10X1	M36	39	2600.4	155	22	118	1	2298
-	3100	181	023.40.2940.03	3040	2805	2904	2940	161	40	6	60	60	M10X1	26	26	2626.5	141	16	165	0.5	2194
2728	3100	210	7787/2728K	3040	2780	2874	2930	200	42	4	36	36	M14X1.5	26	25	2652	105	10	266	0.6	2537
2872	3428	226	023.60.3150.03	3338	2962	3108	3160	214	56	8	56	56	M10X1	45	45	2760	150	20	139	0.5	4019
-	3455	217	024.50.3250.03	3365	3140	3206	3250	192	47	6	68	68	ZG3/8	M36	39	2952	170	24	123	1	2899
-	3455	222	024.50.3250.03K	3365	3140	3206	3250	202	47	6	68	68	ZG3/8	M36	39	2952	175	24	123	1	3028
-	3503	240	024.60.3310.03	3435	3190	3255	3310	214	26	8	88	88	ZG3/8	M33	37	3000	190	24	126	0.5	3223

Double-row Ball Slewing bearing-with External Teeth
d820～4470mm
Boundary Dimension			Bearing Type	Related Dimension												Gear Parameter					Weight
d	D	T		D1	d1	d2	DwP	H	h	n1	n2	n3	φ1	φ2	φ3	da	b	m	Z	X	kg≈
820	1150	125	6787/820G	1100	880	1020	990	130	5	2X2	1	14/4	M10X1	1	25/22	1206	75	12	99	-0.25	508
978	1262	124	021.30.1120.12	1218	1022	1159	1120	114	29	6	36	36	M10X1	22	22	1318	80	10	129	0.5	391
1074	1426	160	021.40.1250.12	1374	1126	1300	1250	150	39	8	40	40	M10X1	26	26	1497.6	90	12	122	0.5	726
1224	1576	160	021.40.1400.12	1524	1272	1450	1400	150	39	8	40	40	M10X1	26	26	1644	90	12	134	0.5	803
1224	1576	160	022.40.1400.12	1524	1272	1450	1400	150	39	5	40	40	M10X1	26	26	1649.2	90	14	115	0.5	809
1424	1776	160	022.40.1600.12	1724	1476	1650	1600	150	39	5	45	45	M10X1	26	26	1852.8	90	16	113	0.5	967
1600	2000	175	6787/1600G	1920	1675	1840	1790	190	15	4	20	10	M10X1	38	38	2066.4	120	14	146	-0.2	1531
1600	2000	175	6788/1600G	1920	1675	1840	1790	190	15	4	24	24	M10X1	32	32	2154.6	140	6	358	-0.45	1576
1624	1976	160	022.40.1800.12	1924	1676	1836	1800	150	39	5	45	45	M10X1	26	26	2060.8	90	16	126	0.5	1088
2135	2524	185	9787/2135	2436	2215	2331	2333	170	15	12	68	64	M10X1	39	M30	2616	147	20	128	0.5	1900
2135	2524	185	9787/2135K	2436	2215	2331	2333	170	15	6	68	64	M10X1	39	M30	2616	147	20	128	0.5	1900
2209	2470	90	021.25.2285.03	2340	2245	2306	2286	64	26	4	24	20	M10X1	M16	M16	2420	70	10	240	0	372
2285	2715	190	021.50.2500.12	2649	2351	2538	2500	178	47	8	56	56	M10X1	33	33	2804	120	18	153	0.5	2031
2570	3040	195	9787/2570	2885	2665	2776	2778	165	15	8	94	96	M10X1	39	M36	3141.6	170	22	140	0.5	2730
3405	3765	185	6789/3405K	3700	3465	3638	3570	185	45	12	48	48	M12X1.25	35	35	3852	120	18	212	0	2632
4470	5184	250	022.60.4700.03	4910	4565	4759	4700	238	65	10	60	60	M10X1	33	33	5184	155	18	286	0	7630

Double-row Ball Slewing bearing-without Teeth
d260~3245mm
Boundary Dimension			Bearing Type	Related Dimension												Weight
d	D	T		D1	d1	d2	DwP	H	h	n1	n2	n3	φ1	φ2	φ3	kg≈	Loading Curve
260	385	55	D787/260	365	280	313	314.673	55	0	3	33	33	3	9.3	9.3	18.5
978	1262	124	020.30.1120.12	1218	1022	1159	1120	124	29	6	36	36	M10X1	22	22	343
1074	1426	160	020.40.1250.12	1374	1126	1300	1250	121	39	8	40	40	RC1/4	26	26	652
1916	2320	150	787/1916G2	2245	1980	2146	2115	130	15	12	42	42	M12	34	34	1251
2530	2820	156	020.40.2685.03	2775	2580	2651	2685	150	39	6	60	60	M10X1	26	26	1173
3245	3683	230	020.60.3485.03	3620	3315	3420	3487	220	10	12	52	52	M10X1	39	39	3240