NF Series

Single row cylindrical roller bearings NF type has a single rib on the outer ring, and two ribs on the inner ring.Can receive single direction axial loads.Much like the NJ bearing, these bearings possess some thrust load capability.

Classification :

Cylindrical Roller Bearings

Keywords :

NF series cylindrical roller bearings, NF200 series, NF300 series, NF2300 series, one-way axial positioning bearings, separable cylindrical roller bearings, gearbox bearings, motor bearings, high rigidity radial bearings

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🎯 Category Overview

NF series cylindrical roller bearings are single-row separable bearings with double ribs on the inner ring and a single rib on the outer ring. They are designed to carry high radial loads and limited one-way axial loads, providing reliable one-way axial positioning for shafts. With high rigidity, excellent high-speed performance and easy installation, they are widely used in gearboxes, motors, machine tools and industrial transmission equipment.

📏 Complete Model & Dimension List

Bearing Number	d (mm)	D (mm)	B (mm)
NF202	15	35	11
NF203	17	40	12
NF204	20	47	14
NF304	20	52	15
NF205	25	52	15
NF305	25	62	17
NF2305	25	62	24
NF206	30	62	16
NF306	30	72	19
NF2306	30	72	27
NF207	35	72	17
NF307	35	80	21
NF2307	35	80	31
NF208	40	80	18
NF308	40	90	23
NF2308	40	90	33
NF209	45	85	19
NF309	45	100	25
NF2309	45	100	36
NF210	50	90	20
NF310	50	110	27
NF2310	50	110	40
NF211	55	100	21
NF311	55	120	29
NF2311	55	120	43
NF212	60	110	22
NF312	60	130	31
NF2312	60	130	46
NF213	65	120	23
NF313	65	140	33
NF2313	65	140	48
NF214	70	125	24
NF314	70	150	35
NF2314	70	150	51
NF215	75	130	25
NF315	75	160	37
NF2315	75	160	55
NF216	80	140	26
NF316	80	170	39
NF2316	80	170	58
NF217	85	150	28
NF317	85	180	41
NF2317	85	180	60
NF218	90	160	30
NF318	90	190	43
NF2318	90	190	64
NF219	95	170	32

⚙️ Core Advantages

One-way axial positioning with high radial load capacity
Separable design for easy mounting and dismounting
High rigidity and excellent high-speed performance
Standard international dimensions for global interchangeability
Available with EM brass cage, M copper cage and other options for heavy-duty applications
Suitable for combined radial and one-way axial load conditions

🛠️ Typical Applications

Widely used in gearboxes, reducers, electric motors, pumps, fans, machine tool spindles, compressors, textile machinery, printing equipment and various industrial transmission systems requiring one-way axial positioning.

Category Overview

Cylindrical Roller Bearings are radial rolling bearings with cylindrical rolling elements that make line contact with raceways. They feature high radial load capacity, high rigidity, high-speed capability, and low friction.Most types can accommodate axial displacement between shaft and housing, and some structures allow carrying axial loads. They are widely used in motors, gearboxes, pumps, compressors, machine tools and other heavy‑duty rotating equipment.

Our Series Breakdown

We offer a complete range of cylindrical roller bearing series to suit different positioning and load requirements:

Series	Features	Typical Applications
NU Series	Floating bearing, free axial displacement, high radial load	Motors, fans, general machinery
NJ Series	Locates shaft in one axial direction, high rigidity	Gearboxes, reducers, machine tool spindles
NUP Series	Locates shaft in both axial directions, fixed positioning	Heavy gearboxes, compressors, pumps
N Series	Outer ring with two ribs, inner ring without ribs	General industrial transmission equipment
NF Series	Single-direction axial location, compact structure	Small‑to‑medium gearboxes and motors
RN Series	Without outer ring, fits directly into housing bore	Hydraulic pumps, construction machinery
RNU Series	Without inner ring, fits directly onto shaft	Special transmission mechanisms, compact equipment

Core Advantages

Extremely high radial load capacity and strong impact resistance
High rigidity and excellent high-speed performance
Low friction, stable operation, long service life
Allow axial thermal expansion of shaft (floating types)
Separable structure for easy installation and maintenance
Available in open, sealed and precision grades

🛠️ Typical Applications

Widely used in electric motors, gearboxes, reducers, pumps, compressors, machine tool spindles, fans, rolling mills, automotive transmissions, and other heavy‑duty industrial machinery.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

Cylindrical Roller Bearings