/ Single row cylindrical roller bearings

nu bearing

1.Product Introduction: Similar to the NU type, with a separable inner ring, capable of bearing radial loads, and suitable for scenarios with frequent maintenance.
2.Structure Type: The outer ring has double ribs, the inner ring is separable, with a single row of rollers + cage, and it is open - type / sealed.
3.Size Range: Inner diameter 20 - 500mm, outer diameter 47 - 1000mm, width 14 - 200mm.
4.Material: Inner ring / outer ring / rollers: GCr15/GCR15SIMN/20Cr2Ni4A, cage: stamped steel / brass.
5.Precision: P0/P6 level, precision version is P5 level.
6.Application Fields: Electric motors, machine tools, reducers, construction machinery.
7.Key Inspection Items: Radial clearance, rotational flexibility, dimensional accuracy.

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Product Description

Data Sheet

NU Bearing Solutions for Industrial Excellence

High-Performance Bearings Engineered for Heavy-Duty & Precision Applications

Custom Large-Sized Bearings (φ5000mm Max), P4-Grade Medical Bearings, and End-to-End R&D/Supply Solutions for Global Industrial Equipment Makers

Request Custom Bearing Specifications Now

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product-750-750

Engineered for Extreme Performance

When you need bearings that withstand relentless industrial demands, NU Bearing delivers. With 30+ years of expertise, we specialize in cylindrical roller bearings optimized for radial loads, high-speed operations, and harsh environments. Our NU-type bearings feature separable inner rings for easy maintenance, making them ideal for electric motors, machine tools, and heavy machinery.

product-750-1000

Core Product Features

Size Range: 20–500mm inner diameter, 47–1000mm outer diameter
Materials: High-purity steel (GCr15/SUJ2) for durability, brass/stamped steel cages
Precision: P0/P6 standard, P5 precision-grade options
Load Capacity: Designed for radial loads up to 800kN
Certifications: ISO 9001, ISO/TS 16949 compliant

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product-1406-300

Industry-Specific Solutions

🏭 Metallurgy & Heavy Machinery

Withstand 500°C temperatures and heavy loads in rolling mills using our heat-treated, Cr-Mo steel bearings.

⚓ Port & Marine Equipment

Corrosion-resistant NU bearings with IP67 sealing ensure reliability in cranes and conveyors.

🏥 Medical Precision Systems

Ultra-low noise (≤35dB) P4-grade bearings for MRI scanners and surgical robots.

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Why Choose NU Bearings?

1. Fast Customization: Reduce lead times by 70%—φ3000mm custom bearings ship in 15–20 days.

2. Dual Supply Chain: 1,000+ standard bearings ready in 48 hours + agile custom production.

3. Lifecycle Support: From installation guidance to predictive maintenance via IoT.

4. Rigorous Testing: 12+ quality checks, including vibration analysis and lifespan testing.

Schedule a Technical Consultation

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Technical Excellence

Material Purity: Aerospace-grade steel reduces wear by 40%.
Heat Treatment: Enhances load capacity and temperature resistance.
Modular Design: Enables rapid scaling for bulk orders.

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Global Supply Chain Assurance

Standard Orders: Shipped within 48 hours from regional hubs.
Custom Solutions: 25-30 days for non-standard designs.

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FAQ

Q: Can you replicate bearings for obsolete machinery?

Yes! Our engineers provide reverse-engineering support for legacy systems.

Q: What’s the minimum order for custom bearings?

50 units, but we accommodate urgent orders.

Q: How do you ensure precision in high-temperature environments?

Specialized heat treatment and material selection guarantee stability up to 500°C.

Get Instant Pricing for Bulk Orders

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Contact Our Bearing Experts

📞 24/7 Hotline | 💬 Live Chat

📧 Email: sales@inno-bearing.com

📍 Global Support: On-site measurements, installation guidance, and lifecycle management.

Your Next Project Deserves NU Bearing Precision—Let’s Optimize Your Equipment Today.

d 55～60mm
Overall Dimensions					Rated Load		Limiting Rotational Speed		Bearing Designation		Shaft Diameter	Other Dimensions				Mounting Dimensions					Weight
d	D	B	rmin	r1min	Dynamic Load C	Static Load C₀	Grease	Oil	Current Model	Original Model	Shaft Diameter	d1	D1	E	F	damin	Damax	Dbmin	ramax	rbmax	Weight
mm					kN		r/min				mm	mm				mm					kg
55	100	21	1.5	1.1	87	100	6000	7000	NF211E		55	70.9	86.5	90		61.5	91		1.5	1	0.74
	100	21	1.5	1.1	87	100	6000	7000	NU 211 EF1		55		86.5		66	61.5	91		1.5	1	0.73
	120	29	2	2	110	110	4800	5600	N311	2311	55	77		105		64	107		2	2	1.53
	120	29	2	2	110	110	4800	5600	N311M	2311H	55	77		105		64	107		2	2	1.67
	120	29	2	2	110	110	4800	5600	NU 311M	32311H	55		98.5		70.5	64	111		2	2	1.71
	120	29	2	2	110	110	4800	5600	NF311	12311	55	77	99	105		64	111107		2	2	1.54
	120	29	2	2	140	146	4800	5600	NU 311 EPC/P5		55		101		70.5	64	111		2	2	1.44
	120	43	2	2	148	162	4800	5600	NU 2311M	32611H	55		98.5		70.5	64	111		2	2	2.77
	120	43	2	2	148	162	4800	5600	NJ 2311M	42611H	55	76	98.5		70.5	64	111		2	2	2.93
	120	43	2	2	202	235	4800	5600	NJ2311EF1/C4	YB	55	77.5	100		70.5	64	111		2	2	2.45
	140	33	2.1	2.1	139	138	4800	5600	NU 411M	32411H	55		108		77.2	66	129		2	2	3.24
	140	33	2.1	2.1	139	138	4800	5600	NJ 411M	42411H	55	85	108		77.2	66	129		2	2	3.29
60	95	18	1.1	1	48.7	62.3	6700	8000	NU1012M		60		82.2		69.5	65	88.5		1	1	0.49
	110	22	1.5	1.5	73.3	82	5300	6300	N212	2212	60	78.4		97.5		68	100		1.5	1.5	0.87
	110	22	1.5	1.5	98.5	108.6	5300	6300	NJ 212E	42212E	60	77.6	95		72	68	102		1.5	1.5	0.71
	110	22	1.5	1.5	76	87	5300	6300	NU 212M	32212H	60		92.2		73.5	68	102		1.5	1.5	0.96
	110	22	1.5	1.5	76	87	5300	6300	NJ212M	42212H	60	776	92.2		73.5	68	102		1.5	1.5	0.98
	130	31	2.1	2.1	126	130	4300	5000	N312	2312	60	82.6		113		71	116		2	2	1.86
	130	31	2.1	2.1	135	140	4300	5000	N312M	2312H	60	85.4		113		71	116		2	2	2.05
	130	31	2.1	2.1	126	130	4300	5000	NU 312	32312	60		107		77	71	120		2	2	1.86
	130	31	2.1	2.1	126	130	4300	5000	NU 312Q1	32312Q	60		107		77	71	120		2	2	2.08
	130	31	2.1	2.1	135	140	4300	5000	NU 312M	32312H	60		107		77	71	120		2	2	2.08
	130	31	2.1	2.1	126	130	4300	5000	NJ312	42312	60	84.2	107		77	71	120		2	2	1.9
	130	31	2.1	2.1	135	140	4300	5000	NJ312M	42312H	60	84.2	107		77	71	120		2	2	2.12
	130	31	2.1	2.1	155	164	4300	5000	NJ 312EF1		60	84.3	109		77	71	120		2	2	1.95
	130	31	2.1	2.1	155	164	4300	5000	NU 312EPC/P5		60		110		77	71	120		2	2	1.82
	130	46	2.1	2.1	222	262	4300	5000	N2312EF1		60	84.3		115		71	116		2	2	2.9
	130	46	2.1	2.1	222	262	300	5000	NJ2312EF1		60	84.3	108		77	71	120		2	2	2.99
	140	51	2.5	2.5	145	108	4300	5000	N612/C9	2712U	60	86		122		75	125		2	2	3.21
d 60～70mm
Overall Dimensions					Rated Load		Limiting Rotational Speed		Bearing Designation		Shaft Diameter	Other Dimensions				Mounting Dimensions					Weight
d	D	B	rmin	r1min	Dynamic Load C	Static Load C₀	Grease	Oil	Current Model	Original Model	Shaft Diameter	d1	D1	E	F	damin	Damax	Dbmin	ramax	rbmax	Weight
mm					kN		r/min				mm	mm				mm					kg
60	150	35	2.1	2.1	167	168	4300	5000	N412M	2412H	60	91.7		127		71		128	2	2	3.52
	150	35	2.1	2.1	167	168	4300	5000	NJ412	42412	60	91	119	83		71	138		2	2	3.21
	150	35	2.1	2.1	206	220	4300	5000	NJ412EF1		60	91.5	121	83		72	138		2	2	3.14
65	100	18	1.1	1	41	51	6300	7500	NU1013M	32113H	65		86.6		74.5	70	93.5		1	1	0.52
	120	23	1.5	1.5	85	96.1	4800	5600	NJ213M		65	85	102		79.5	74	111		1.5	1.5	1.18
	120	23	1.5	1.5	85	96.1	4800	5600	N 213M		65	85		106		74		108	1.5	1.5	1.15
	120	31	1.5	1.5	144	172	4800	5600	NU2213EM		65		104	78.5		74	111		1.5	1.5	1.63
	120	31	1.5	1.5	144	172	4800	5600	NU2213ENM		65		104	78.5		74	111		15	1.5	1.61
	140	33	2.1	2.1	140	146	4000	4800	N313	2313	65	91		122		77		125	2	2	2.32
	140	33	2.1	2.1	140	146	4000	4800	N313M	2313H	65	92.3		122		77		125	2	2	2.58
	140	33	2.1	2.1	140	146	4000	4800	NU 313M	32313H	65		115		83.5	77	129		2	2	2.51
	140	33	2.1	2.1	140	146	4000	4800	NU 313Q1	32313Q	65		115		83.5	77	129		2	2	2.53
	140	33	2.1	2.1	140	146	4000	4800	NJ313M	42313H	65	91	115		83.5	77	129		2	2	2.57
	140	33	2.1	2.1	177	211	4000	4800	NJ313E		65	90.6	119		82.5	77	129		2	2	2.45
	140	33	2.1	2.1	177	211	4000	4800	NU 313EFI		65		119		82.5	77	128		2	2	2.41
	140	33	2.1	2.1	140	146	4000	4800	N313Q1/P6S0		65	92.3		122		77		125	2	2	2.54
	140	33	2.1	2.1	140	146	4000	4800	NU 313Q1/P63SO		65		115	83.5		77	129		2	2	2.53
	140	33	2.1	2.1	140	146	4000	4800	NJ313Q1/P63S0		65	90.5	115		83.5	77	129		2	2	2.6
	140	48	2.1	2.1	238	276	4000	4800	NU 2313EM	32613EH	65		119	82.5		77	129		2	2	3.71
70	125	24	1.5	1.5	83.5	95	4500	5300	NJ 214M	42214H	70	88.6	105		84.5	78	117		1.5	1.5	1.36
	125	24	1.5	1.5	83.5	95	4500	5300	NU 214M	32214H	70		105		84.5	78	117		1.5	1.5	1.34
	125	24	1.5	1.5	123	143	4500	5300	N214EL	2214EL	70	89.6		114		78		114	1.5	1.5	1.21
	125	24	1.5	1.5	112	126	4500	5300	N214EM		70	89.6			83.5	78		114	1.5	1.5	1.33
	125	24	4	1.5	123	143	4500	5300	NF214/C9YB2		70	89.6	109	114		78		114	3	1.5	1.25
	125	24	1.5	1.5	123	143	4500	5300	NJ 214EF1		70	89.6	109		83.5	78	117		1.5	1.5	1.25
	125	24	1.5	1.5	123	143	4500	5300	NJ214EFI/YB2		70	89.6	109		83.5	78	117		1.5	1.5	1.25
	125	31	1.5	1.5	145	185	4500	5300	NJ2214EM	42514EH	70	89.4	109		83.5	78	117		1.5	1.5	1.93