320 Series

320 series metric single-row tapered roller bearings, narrow section, light-medium load, GCr15 steel, for automotive hubs, gearboxes, agricultural machinery, full models in stock, OEM replacement available.

Classification :

single-row

Keywords :

single-row tapered roller bearings

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Category Detail | 320 Series Metric Single Row Tapered Roller Bearings

Catalog Navigation： Dimensions Table Bearing Suffix Explanation Key Features Application Scenarios FAQ Get Quotation

320 series metric single-row tapered roller bearings, also known as narrow section taper roller bearings, are widely adopted aftermarket and OEM tapered bearings for light and medium load working conditions. This series single row tapered roller unit carries combined radial load and one-way axial load, features compact installation width, interchangeable metric dimensions matching global standard specifications.

Manufactured from premium GCr15 / 100Cr6 high carbon chromium bearing steel with precision quenching and tempering heat treatment, our 320 series tapered roller bearings deliver stable dimensional accuracy, excellent wear resistance and long service life. As factory direct YJZY brand tapered roller bearings, full dimensions are interchangeable with SKF, NTN, NSK, KOYO equivalent references. Ideal for automotive wheel hubs, vehicle differential, agricultural tractors, light construction machinery, gearboxes and general industrial transmission equipment.

Rodamientos cónicos de una fila serie 320, dimensiones métricas, totalmente intercambiables para repuestos automotrices y maquinaria agrícola, disponibilidad de stock para pedidos pequeños y mayoristas de Latinoamérica.

Hot-Selling Models & Dimensions (mm)

Bearing Model	d (Bore)	D (Outer Diameter)	T (Assembly Width)	Bearing Model	d (Bore)	D (Outer Diameter)	T (Assembly Width)
32004X	20	42	15	32005X	25	47	15
32006X	30	55	17	32007X	35	62	18
32008X	40	68	19	32009X	45	75	20
32010X	50	80	20	32011X	55	90	23
32012X	60	95	23	32013X	65	100	23
32014X	70	110	25	32015X	75	115	25
32016X	80	125	29	32017X	85	130	29
32018X	90	140	32	32020X	100	150	32
32022X	110	170	38	32024X	120	180	38

Bearing Suffix Explanation & Typical Models

Suffix	Technical Definition	Representative Models
X	Narrow inner ring, ISO metric standard structure	32004X, 32008X, 32012X
A	Modified contact angle for heavier axial load	32010A, 32016A
C	Normal clearance group, general standard clearance	32007XC, 32015XC
K	Tapered bore (1:12 taper), adapter sleeve mounting	32018K, 32022K

Key Product Features

Narrow cross-section construction, saves installation space for compact machinery design
Balanced radial and one-way axial load capacity, perfect for medium-duty continuous operation
High purity GCr15 bearing steel, stable hardness, anti-fatigue and long service life
Standard metric dimension series, fully interchangeable with international brand tapered roller bearings
Factory direct supply, supports OEM private labeling, mixed small batch & bulk wholesale orders
Wide stock coverage for mainstream sizes, short lead time for regular aftermarket requirements

Main Application Scenarios

Light & medium commercial vehicle wheel hubs, automotive differential assemblies
Transmission gearboxes, speed reducers, agricultural tractor power systems
Farm machinery, harvesters, mini construction equipment and loaders
General industrial machinery, machine tools, conveyor and lifting equipment
Aftermarket spare parts distributors, auto repair shops and mechanical component wholesalers

Frequently Asked Questions

Q1: Are your 320 series tapered roller bearings interchangeable with SKF/NTN original bearings?
A1: Yes. All metric dimensions strictly follow ISO standard. Our YJZY 320 series bearings can directly replace equivalent tapered roller bearing references without mechanical modification.

Q2: Can you accept small mixed orders for multiple models?
A2: We support mixed batch wholesale. For Latin American distributors with small trial orders, we can arrange consolidated shipment. Express delivery is available for tiny lots while sea freight offers better unit cost for large volumes.

Q3: What is your production lead time for out-of-stock sizes?
A3: In-stock models can be dispatched within 3-7 working days. Custom production orders normally take 15-28 days according to quantity.

Q4: Do you provide OEM & private brand packaging service?
A4: OEM service is available. We support custom neutral cartons, customer brand printing and customized labels for wholesale distributors.

Q5: What clearance grades can you offer for 320 series taper roller bearings?
A5: Standard normal clearance (C0/C3) are regularly in stock. Special clearance groups can be produced upon customer technical drawings.

Category Overview

Single-row tapered roller bearings are separable rolling element bearings engineered to withstand combined radial and unidirectional axial loads simultaneously. Featuring tapered inner/outer raceways and precision tapered rollers, these bearings deliver high load capacity, high rigidity, and precise axial positioning, making them ideal for heavy-load, impact-resistant applications across automotive, industrial machinery, mining, agriculture, and construction. Our full range of metric single-row tapered roller bearings covers all popular series, with complete stock, OEM customization, and global brand replacement solutions.

Our Series Breakdown

Series	Configuration	Key Features	Typical Applications
30200 Series	Single Row	Standard medium-load design, cost-effective, universal fit	Automotive wheel hubs, small gearboxes, general industrial equipment
30300 Series	Single Row	Medium-heavy load, high rigidity, wide application range	Industrial gearboxes, agricultural machinery, construction equipment
32000 Series	Single Row	Narrow cross-section, light-medium load, space-saving	Automotive hubs, compact gearboxes, agricultural drive shafts
32200 Series	Single Row	Versatile medium-heavy load, balanced load & speed, high impact resistance	Truck axles, heavy gearboxes, construction machinery, mining equipment
32300 Series	Single Row	Heavy-duty design, large contact angle, maximum radial/axial load capacity	Large reducers, crushers, vibrating screens, heavy construction machinery
32900 Series	Single Row	Ultra-thin section, compact structure, high load in limited space	Precision machine tools, small gearboxes, automotive transmissions
33000 Series	Single Row	Wide cross-section, high axial load capacity, medium-heavy duty	Heavy vehicles, industrial gearboxes, crane hoists
33100 Series	Single Row	High rigidity, high-speed optimized, medium load	Automotive transmissions, high-speed gearboxes, precision machinery
33200 Series	Single Row	Universal medium-heavy load, enhanced impact resistance	Agricultural machinery, construction equipment, heavy gearboxes

Core Advantages

High Combined Load Capacity: Effectively bear heavy radial loads and unidirectional axial loads simultaneously, ideal for heavy-duty working conditions.
Separable Design: Inner ring (cone) and outer ring (cup) can be installed separately, simplifying assembly, disassembly, and internal clearance adjustment.
High Rigidity & Impact Resistance: Superior performance under shock loads, vibration, and harsh industrial environments.
Precise Axial Positioning: Accurately control shaft axial play, perfect for precision transmission systems and automotive applications.
Wide Compatibility: Multiple series and metric sizes available, interchangeable with international brands (SKF/NSK/FAG/TIMKEN).
Full Stock & Fast Delivery: Complete range of hot-selling models in stock, supporting bulk orders and fast global shipping.
OEM & Customization: Support special materials, clearances, and non-standard size customization for specific application needs.

Typical Industrial Applications

Widely used in automotive wheel hubs, truck axles, gearboxes, reducers, mining equipment, crushers, vibrating screens, rolling mills, agricultural machinery, construction machinery, pumps, compressors, and other heavy-duty mechanical transmission systems.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

single-row