/ Self aligning ball bearings

1218 k bearing

1.Product Introduction: The model of self-aligning ball bearings (1218K), with an inner diameter of 90mm and a tapered hole (1:12), featuring a thick-wall design, suitable for medium-sized heavy-duty equipment.
2.Structure Type: Inner ring (with tapered hole 1:12) + outer ring (with thick-wall spherical raceway) + single-row steel balls + steel cage (impact-resistant), open type.
3.Size Range: Inner diameter: 90mm (tapered hole 1:12), outer diameter: 160mm, width: 30mm.
4.Material: Inner ring / outer ring: GCr15, rolling elements (steel balls): GCr15, cage: steel (impact-resistant).
5.Accuracy: Conventional P0 grade, heavy-duty precision models are of P6 grade.
6.Application Fields: Medium-sized motors (15kW), construction machinery (loaders), port light-duty cranes, large fans (10kW).
7.Key Inspection Items: Surface roughness of the tapered hole (Ra ≤ 0.8μm), self-aligning angle, strength of the outer ring (compressive strength ≥ 800MPa).

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Product Description

DATA SHEET

1218 K Bearing: Heavy-Duty Performance for Demanding Industrial Applications

When your machinery faces extreme loads, high temperatures, or constant impacts, the 1218 K Bearing delivers unmatched reliability. Designed with a robust tapered hole (1:12) and thick-wall construction, this self-aligning ball bearing excels in steel mills, mining equipment, and heavy-duty motors. With 30+ years of metallurgical bearing expertise, LUOYANG INNO ensures your operations get precision-engineered solutions that withstand 150℃ heat, 300kN dynamic loads, and relentless industrial stress – all while maintaining ABEC-1 to ABEC-7 precision standards.

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Why Our 1218 K Bearing Outperforms Competitors

✅ Extreme Environment Ready

Operates seamlessly from -50℃ to +150℃
Handles shock loads up to 420kN static capacity

✅ Custom-Built Flexibility

Modify inner/outer diameters up to φ5000mm
Choose steel cages for impact resistance or ceramic hybrids for corrosion

✅ Speed Without Compromise

48-hour shipping for standard sizes (90mm ID × 160mm OD × 30mm width)
70% faster custom production vs. industry averages

Technical Specifications at a Glance

Parameter	Standard 1218 K Bearing	Customizable Options
Inner Diameter	90mm (tapered 1:12)	50mm - 5000mm
Dynamic Load Capacity	300kN	Up to 850kN
Material Grade	GCr15 Bearing Steel	Stainless/HT Ceramic Coated
Noise Level	<35dB (P4 Precision)	Customized for Silent Ops
Lead Time	48 Hours (Standard)	15 Days (φ3000mm+ Orders)

Where 1218 K Bearings Power Productivity

Steel & Metallurgy

Ladle turret bearings surviving 500℃ furnace heat
Rolling mill roll necks handling 25-ton steel slabs

Mining & Heavy Machinery

Conveyor systems enduring 24/7 ore impacts
Crusher bearings with 30% higher shock resistance

Precision Engineering

Medical robotics requiring P4-grade accuracy
Wind turbine pitch controls with <0.002mm runout

5 Reasons Global Industries Choose Us

Material Mastery

Our vacuum-degassed SUJ2-equivalent steel undergoes triple-phase hardening, achieving 800MPa compressive strength – 40% tougher than standard bearings.

Smart Customization

Modify your 1218 K Bearing with:

IoT sensors for real-time wear monitoring
Multi-layered seals for desert/sandstorm conditions
Hybrid ceramic balls for chemical plants

Proven Longevity

Rigorous testing including:

500-hour lifespan simulation under max load
Vibration analysis for harmonic resonance control

Emergency Support Network

Regional warehouses in Germany/US/India
24/7 multilingual technical consultations

Full Lifecycle Management

From installation guidance to predictive maintenance planning, we ensure your bearings outlast equipment service intervals.

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FAQ

Q: Can you create oversized products for our φ4200mm mining crushers?

A: Yes! Our modular production system delivers φ5000mm custom bearings in 15-20 days – 10 days faster than typical suppliers.

Q: How do your bearings handle port machinery's saltwater corrosion?

A: Our 1218K-CR series uses marine-grade stainless steel and triple-lip seals, proven in 150+ port installations globally.

Q: Do you provide material certifications?

A: Every bearing ships with complete traceability:

ISO 9001:2015 manufacturing compliance
EN 10204 3.1 material test certificates

Q: What if we need urgent replacements during plant shutdowns?

A: Our Priority Stock Program guarantees 48-hour delivery for 1,000+ standard models – including emergency φ3000mm+ sizes.

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Contact Us

Ready to Upgrade Your Bearing Performance?

Whether you need:

Same-day shipping for standard 1218 K Bearings
Custom designs for extreme-temperature applications
Full IoT integration for predictive maintenance

Email our engineers at sales@inno-bearing.com with your:

Application environment (heat/load/speed specifics)
Technical drawings or dimension requirements
Preferred delivery timeline

Within 4 hours, you'll receive:

✅ Price quote with volume discounts

✅ Material/test certification samples

✅ Customization feasibility analysis

30 years of industrial trust – now powering your machinery's next evolution.

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