/ Double row ball slewing bearings

Double-Row Angular Contact Ball Slewing Bearings

1.Product Introduction: With a double-row angular contact ball structure, capable of simultaneously bearing axial and radial loads, with an optional contact angle of 25° or 40°, suitable for high-precision slewing equipment.
2.Structure Type: It has an annular shape. The inner and outer rings have double-row angular contact raceways, with built-in double-row steel balls (with cages), seals on both sides, and some models have positioning steps.
3.Size Range: Outer ring diameter: 200 - 2000mm, inner ring diameter: 160 - 1850mm, height: 25 - 80mm.
4.Material: Inner ring / outer ring: 50Mn, 42CrMo; rolling elements: GCr15, GCr15SiMn (optional for impact resistance); seals: nitrile rubber, fluororubber (optional for oil and high temperature resistance).
5.Application Fields: Precision machine tools, robot joints, inspection instruments, high-end medical equipment.
6.Key Inspection Items: Accuracy of contact angle, radial runout, slewing resistance.

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Product Description

Data Sheet

Double-Row Angular Contact Ball Slewing Bearings for Extreme Heavy-Duty Applications

Engineered for High Axial/Radial Loads, Precision Alignment, and Harsh Environment Durability

Double-Row Angular Contact Ball Slewing Bearings are the backbone of industrial machinery requiring unmatched load capacity and rotational accuracy. With 30+ years of expertise, our bearings combine dual-row angular contact design, advanced material science, and precision engineering to handle axial and radial forces simultaneously. Ideal for wind turbines, port cranes, and medical imaging systems, they deliver P5-grade precision, corrosion resistance, and a 99.9% defect-free rate—ensuring reliability where failure isn’t an option.

product-1280-956

Why Choose Us?

Dual-Load Mastery: Simultaneously manage axial loads up to 15,000 kN and radial loads with optimized 25°/40° contact angles.
Harsh Environment Ready: Operate between -50°C to +150°C using 42CrMo/50Mn steel with multi-layer hardening (60-62 HRC).
Precision Ground: Achieve ±0.01mm dimensional accuracy via CNC profile grinding for critical alignment in medical CT scanners or tunnel boring machines.
Custom-Built Solutions: Tailor bore diameters (200mm–5000mm), sealing (IP68/IP69K), or materials (non-magnetic titanium/ceramic hybrids) for your application.

Technical Specifications

Parameter	Value/Range
Bore Diameter	200mm - 5000mm
Static Load Capacity	5,000 - 15,000 kN
Rotational Speed	Up to 200 RPM
Precision Grade	P4/P5 (ISO 492)
Noise Level	<50dB in medical systems

Where Excellence Meets Demand?

Wind Energy

Withstand 20+ years of offshore saltwater exposure and 15 MN·m static loads in 5MW turbines. GL Wind Energy-certified with IoT-ready condition monitoring.

Construction & Mining

Absorb 300% shock loads in crawler cranes. Tungsten carbide-coated raceways combat abrasive debris. MSHA/CE compliant.

Medical Imaging

Double-Row Angular Contact Ball Slewing Bearings with zero lubricant leakage, <25dB operation, and 0.001° rotational accuracy for MRI/CT systems. ISO 13485 & USP Class VI certified.

product-1256-742

Built for Your Needs

1. Analyze: Share load profiles, RPM, and environmental challenges.

2. Simulate: CAD-based fatigue life calculation (250,000+ cycles guaranteed).

3. Test: Prototypes undergo 12+ tests, including torque measurement and -40°C/120°C thermal cycling.

4. Deliver: Batch production with 3-stage inspections. MOQ 1 unit.

Quality You Can Trust

Traceable Materials: EN 10204 3.1 certificates for every batch.
Precision Verification: CMM-checked raceway geometry and <4.5µm/s vibration levels.
Real-World Testing: 500-hour accelerated life simulations replicating port crane duty cycles.

Global Support, Local Speed

48-Hour Emergency Dispatch: 1,000+ standard bearings stocked globally.
Lifecycle Management: Installation guidance, lubrication plans, and 24/7 breakdown support.
Regional Warehouses: Reduce lead times to 15 days for custom φ3000mm+ units.

product-1406-300

FAQ

Q: Can these bearings handle saltwater environments in offshore turbines?

A: Yes. Our ISO 12944 C5-M compliant models use fluororubber seals and 316L stainless steel components.

Q: What precision is achievable for medical equipment?

A: We deliver ≤0.3µm runout (DIN 620-6 P2S class) using ceramic hybrid balls and vacuum-grade lubrication.

Q: How do you ensure large bearings (φ4000mm) meet tolerance specs?

A: In-house CNC grinding achieves ±0.03mm radial runout, verified via laser alignment systems.

Contact Us

Need a Bearing That Never Compromises?

Email your requirements to sales@inno-bearing.com for:

Free load capacity calculations
CAD model reviews within 6 hours
Expedited quotes for wind/medical projects

Double-Row Angular Contact Ball Slewing Bearings from LUOYANG INNO BEARING CO., LTD—where innovation rotates with precision.

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