/ Self aligning ball bearings

double row self aligning ball bearing

1.Product Introduction: With a double-row steel ball structure, its radial load-bearing capacity is 2 - 2.5 times that of the single-row ones, and it can compensate for installation deviations of ±2°, suitable for heavy-duty and installation error scenarios.
2.Structure Type: Inner ring (with optional cylindrical hole or tapered hole) + outer ring (with spherical raceway) + double-row steel balls + steel or brass cage. An isolation ring is set in the middle, and it features a thick-wall design.
3.Size Range: Inner diameter: 20 - 800mm, outer diameter: 47 - 1000mm, width: 18 - 200mm.
4.Material: Inner ring / outer ring: GCr15/GCR15SIMN/20Cr2Ni4A (42CrMo for heavy-duty models), rolling elements (steel balls): GCr15/GCR15SIMN, cage: steel (conventional) / brass (precision).
5.Accuracy: Conventional P0/P6 grades, heavy-duty precision models are of P5 grade.
6.Application Fields: Heavy-duty construction machinery (crushers), mining machinery (ball mills), large motors (above 20kW), port cranes.
7.Key Inspection Items: Consistency of double-row steel ball clearance, self-aligning angle (±2°), radial load-bearing capacity, strength of the outer ring (no cracks).

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Product Description

DATA SHEET

Double Row Self Aligning Ball Bearings for Heavy Machinery & Precision Applications

When your equipment faces heavy radial loads, shaft misalignment, or extreme operating conditions, double row self aligning ball bearings deliver unmatched reliability. At LUOYANG INNO BEARING CO., LTD, we engineer these bearings with 30+ years of expertise to withstand 300°C temperatures, compensate for ±2° installation errors, and handle 2.5x higher radial loads than single-row designs – all while reducing maintenance costs.

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Key Features & Technical Specifications

Heavy-Duty Performance

Load Capacity: 2–2.5x higher radial load capacity than single-row bearings.
Self-Aligning Design: Compensates for ±2° shaft/housing misalignment.
Materials: GCr15/GCR15SIMN steel rings, brass/steel cages, and ISO-certified heat treatment.

Precision Engineering

Accuracy: P0/P6 standard grades; P5 available for heavy-duty models.
Noise Reduction: <35dB operation in medical/lab equipment.
Sizes: Customizable up to 1000mm outer diameter.

Harsh-Environment Resilience

Temperature Resistance: Up to 300°C with specialized heat stabilization.
Durability: Impact-resistant cages for mining crushers and port cranes.

Where Our Bearings Excel?

Metallurgy & Heavy Industry

Rolling mills with cyclic loads up to 300kN.
Continuous casting machines in 500°C environments.

Precision Machinery

Medical imaging systems requiring <35dB noise levels.
High-speed robotics with P4-grade accuracy.

Mining & Construction

Crushers handling abrasive materials.
Conveyor systems in dusty/damp conditions.

Why Partner With LUOYANG INNO?

Faster Customization

We deliver non-standard double row self aligning ball bearings (e.g., φ3000mm) in 15–20 days – 70% faster than industry averages.

Rigorous Quality Checks

100% tested for vibration, noise, and load capacity.
99.9% defect-free rate with 12+ performance validations.

Global Logistics Network

48-hour shipping for 1,000+ standard models.
Regional warehouses in EU, NA, and Asia-Pacific.

Lifetime Support

IoT-driven predictive maintenance plans.
Legacy equipment retrofitting services.

Technical Design Advantages

Self-Aligning Mechanism

Our spherical outer ring raceway and double-row ball arrangement automatically correct misalignment, preventing premature wear in unevenly loaded systems.

High-Temperature Adaptation

Chromium-molybdenum steel (20Cr2Ni4A) cores and low-carbon diffusion treatments enhance heat resistance up to 500°C for metallurgical applications.

Load Distribution

Two rows of precision-ground balls share radial loads evenly, doubling lifespan in port cranes and ball mills compared to conventional designs.

Quality Assurance Process

Material Testing: Spectrometer checks for steel purity.
Grinding Accuracy: <0.001mm tolerance in raceways.
Performance Validation: 72-hour endurance tests under max load.

Customization Made Simple

Share your requirements (load, speed, environment).

Receive CAD models within 3 working days.

Get prototypes tested in real-world conditions.

Global Delivery Options

Stock Orders: Shipped within 48 hours.
Custom Projects: Door-to-door logistics with DDP terms.

FAQ

1. How do your bearings handle 500°C temperatures?

We use 20Cr2Ni4A alloy steel and secondary tempering to prevent deformation.

2. Can you make bearings larger than φ1000mm?

Yes, we specialize in custom double row self-aligning ball bearings up to φ5000mm.

3. What certifications do you hold?

ISO 9001, IATF 16949, and ASTM A295 for metallurgical applications.

4. Do you provide emergency replacements?

Our EU/NA warehouses stock φ50–500mm models for 7-day delivery.

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Contact Us

Need a double row self aligning ball bearing that outlasts your equipment?

Email engineering specs to sales@inno-bearing.com for a same-day quote.

✅ 30+ Years Expertise ✅ 99.9% Defect-Free ✅ 48-Hour Global Shipping

d 17~45mm
Overall Dimensions				Rated Load		Limiting Rotational Speed		Bearing Designation				Mounting Dimensions			Calculation Coefficient				Weight
Overall Dimensions				Rated Load		Limiting Rotational Speed		Cylindrical Bore	Tapered Bore	Cylindrical Bore	Tapered Bore	damin	Damax	ramax	e	Y1	Y2	Y0
d	D	B	rmin	Dynamic Load C	Static Load C。	Grease	Oil	Current Model		Original Model		damin	Damax	ramax	e	Y1	Y2	Y0
mm				kN		r/min						mm							kg
17	40	12	0.6	8.67	2.45	13500	16200	1203	1203K	1203	111203	21	36	0.6	0.31	2	3.1	2.2	0.076
20	47	14	1	12.4	3.2	13500	16200	1204	1204K	1204	111204	25	42	1	0.27	2.3	3.6	2.4	0.119
20	52	21	1.1	18.2	4.75	10000	13000	2304	2304K	1604	111604	26.5	45.5	1	0.51	1.2	1.9	1.3	0.219
25	52	15	1	14	4.05	11700	14400	1205	1205K	1205	111205	30	47	1	0.27	2.3	3.6	2.4	0.144
	52	18	1	16.5	4.28	11700	14400	2205	2205K	1505	111505	30	47	1	0.41	1.5	2.3	1.5	0.187
	62	17	1.1	18.6	6	8500	11000	1305	1305K	1305	111305	31.5	55.5	1	0.27	2.3	3.5	2.4	0.258
	62	24	1.1	26.5	6.95	8500	11000	2305	2305K	1605	111605	31.5	55.5	1	0.47	1.3	2.1	1.4	0.354
30	62	16	1	15.6	5.85	9000	11700	1206	1206K	1206	111206	35	57	1	0	3	4	2.7	0.227
	62	16	1	15.6	5.85	9000	11701	1206TNI				35	57	1	0.24	2.6	4	2.7	0.224
	62	20	1	23.3	5.68	9500	11700	2206	2206K	1506	111506	35	57	1	0.39	1.6	2.4	1.7	0.26
	72	19	1.1	22.1	7.8	8100	10000	1306	1306K	1306	111306	36.5	65.5	1	0.34	2.4	3.8	2.6	0.39
35	72	17	1.1	18.6	6.7	8100	10000	1207	1207K	1207	11207	42	66	1	0	3	4	2.9	0.347
	72	23	1.1	30.1	8.6	8100	10000	2207	2207K	1507	111507	41.5	655	1	0.38	1.7	2.6	1.8	0.441
	80	21	1.5	26	9.8	6800	8100	1307	1307K	1307	111307	43	72	1.5	0.25	2.6	4	2.7	0.538
	80	31	1.5	39.7	12.9	6800	8100	2307	2307K	1607	111607	43	72	1.5	0.46	1.4	2.1	1.4	0.675
40	80	18	1.1	19.5	8.65	6800	8100	1208	1208K	1208	11208	47	74	1	0	3	4	3	0.419
	80	23	1.1	31.2	9.8	6800	8100	2208	2208K	1508	111508	46.5	73.5	1	0.34	1.9	2.9	2	0.53
	90	23	1.5	33.1	12.2	6000	7200	1308	1308K	1308	111308	48	82	1.5	0.24	2.6	4	2.7	0.711
	90	33	1.5	52.9	15.6	6000	7200	2308	2308K	1608	111608	48	82	1.5	0.43	1.5	2.3	1.5	0.93
45	85	19	1.1	22.4	9.65	6000	7200	1209	1209K	1209	111209	51.5	78.5	1	0.21	2.9	4.6	3.1	0.493
	85	23	1.1	31.9	10.8	6000	7200	2209	2209K	1509	11509	51.5	78.5	1	0.31	2.1	3.2	2.2	0.553
	100	25	1.5	38.2	16	5700	6800	1309	1309K	1309	11309	53	92	1.5	0.25	2.5	3.9	2.6	0.951
	100	36	1.5	62.4	19.6	5700	6800	2309	2309K	1609	111609	53	92	1.5	0.42	1.5	2.3	1.6	1.25
d 50～750mm
Overall Dimensions				Rated Load		Limiting Rotational Speed		Bearing Designation				Mounting Dimensions			Calculation Coefficient				Weight
Overall Dimensions				Rated Load		Limiting Rotational Speed		Cylindrical Bore	Tapered Bore	Cylindrical Bore	Tapered Bore	damin	Damax	ramax	e	Y1	Y2	Y0
d	D	B	rmin	Dynamic Load C	Static Load C。	Grease	Oil	Current Model		Original Model		damin	Damax	ramax	e	Y1	Y2	Y0
mm				kN		r/min						mm							kg
50	90	20	1.1	26	10.8	6300	7700	1210	1210K	1210	111240	56.5	83.5	1	0.2	3.1	4.8	3.3	0.545
	90	23	1.1	33.1	11.2	6300	7700	2210	2210K	1510	111510	56.5	83.5	1	0.29	2.2	3.4	2.3	0.678
	110	27	2	43.6	17.6	5000	6000	1310	1310K	1310	111310	59	101	2	0.24	2.7	4.1	2.8	121
	110	40	2	63.7	20	5000	6000	2310	2310K	1610	111610	59	101	2	0.43	1.5	2.3	1.6	1.66
55	100	21	1.5	27	13.4	5000	6000	1211	1211K	1211	111211	63	92	1.5	0.2	3.2	5	3.4	0.704
	120	29	2	51.4	22.4	4500	5400	1311	1311K	1311	111211	64	111	2	0.23	2.7	4.2	2.8	1.58
	120	43	2	76.1	24	4500	5400	2311	2311K	1611	111611	64	111	2	0.41	1.5	2.4	1.6	2.09
60	110	22	1.5	30.2	15.6	5000	6000	1212	1212K	1212	111212	68	102	1.5	0.19	3.4	5.3	3.6	0.896
	110	28	1.5	47.8	16.8	5000	6000	2212	2212K	1512	111512	68	102	1.5	0.28	2.3	3.5	2.4	1.15
	130	31	2.1	57.2	26.5	4050	5000	1312	1312K	1312	111312	71	119	2	0.23	2.8	4.3	2.9	1.96
	130	46	2.1	87.1	28.5	4050	5000	2312	2312K	1612	111612	71	119	2	0.41	1.6	2.5	1.6	2.58
65	140	33	2.1	63.7	29	3870	4500	1313	1313K	1313	111313	76	129	2	0.23	2.8	4.3	2.9	2.38
70	150	35	2.1	74.1	27.5	3600	4320	1314	1314K	1314	111314	81	139	2	0.22	2.8	4.4	2.9	2.98
75	160	37	2.1	79.3	30	3400	4300	1315	1315K	1315	111315	86	149	2	0.22	2.8	4.4	3	3.55
75	160	55	2.1	124	43	3400	4300	2315	2315K	1615	111615	86	149	2	0.38	1.7	2.6	1.7	4.71
80	170	39	2.1	88.4	33.5	3200	4100	1316	1316	1316	111316	91	159	2	0.22	2.9	4.5	3.1	4.17
85	180	41	3	97.9	38	3100	3600	1317	1317	1317	111317	98	167	2.5	0.22	2.9	4.5	3	4.95
750	920	78	5	276	307	260	340	118/750	118/750K	118/750	11118/750	761	909	4	0.059	10.6	16.4	11.1	116