330 series

330 series medium-heavy duty single-row tapered roller bearings, wide section, high axial load, for heavy vehicles, gearboxes, industrial equipment, full models in stock, OEM replacement.

Classification :

single-row

Keywords :

single-row tapered roller bearings,medium-heavy duty single-row tapered roller bearings

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📝 Category Detail

330 series medium-to-heavy duty single-row tapered roller bearings feature a wide cross-section and optimized contact angle, delivering exceptional axial load capacity and high rigidity. Manufactured from premium GCr15 bearing steel with precision heat treatment, these bearings offer superior wear resistance, impact stability, and long service life, making them ideal for heavy vehicles, industrial gearboxes, and heavy-duty mechanical systems. Their robust design ensures reliable performance under continuous load, with full interchangeability with global brands and reliable stock availability.

🔥 Hot-Selling Models & Dimensions (mm)

Model	d	D	T	Model	d	D	T
33004	20	42	15	33005	25	47	17
33006	30	55	19	33007	35	62	21
33008	40	68	22	33009	45	75	24
33010	50	80	24	33011	55	90	27
33012	60	95	27	33013	65	100	27
33014	70	110	31	33015	75	115	31
33016	80	125	36	33017	85	130	36
33018	90	140	39	33020	100	150	39

✅ Key Features

Wide section design for high axial load capacity
Medium-heavy duty performance for industrial applications
High rigidity for heavy load and impact scenarios
Standard metric dimensions for global interchangeability
Reliable stock for fast delivery

🎯 Application Scenarios

Heavy vehicles, truck axles, wheel hubs
Industrial gearboxes, reducers, transmission systems
Construction machinery, cranes, hoists
Agricultural machinery, tractors, harvesters

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