329 series

329 series ultra-thin section single-row tapered roller bearings, compact design, high load capacity, for precision machinery, small gearboxes, automotive transmissions, full stock, OEM available.

Classification :

single-row

Keywords :

single-row tapered roller bearings,329 series ultra-thin section single-row tapered roller bearings

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📝 Category Detail

329 series ultra-thin section single-row tapered roller bearings are specifically designed for space-constrained applications, delivering exceptional load capacity in a compact, lightweight profile. Manufactured with precision machining and strict quality control, these bearings offer high accuracy, low friction, and reliable performance, making them ideal for precision machine tools, small gearboxes, and automotive transmission systems. Their ultra-thin design maximizes installation space efficiency while maintaining industrial-grade load capacity, with full interchangeability with international standards.

🔥 Hot-Selling Models & Dimensions (mm)

Model	d	D	T	Model	d	D	T
32904	20	37	12	32905	25	42	12
32906	30	47	12	32907	35	55	14
32908	40	62	15	32909	45	68	15
32910	50	72	15	32911	55	80	17
32912	60	85	17	32913	65	90	17
32914	70	100	20	32915	75	105	20
32916	80	110	20	32917	85	120	23
32918	90	125	23	32920	100	140	25

✅ Key Features

Ultra-thin section design for space-saving installation
High load capacity in compact dimensions
Precision manufacturing for high accuracy
Ideal for limited-space mechanical systems
Lightweight design for high-speed applications

🎯 Application Scenarios

Precision machine tools, small gearboxes
Automotive transmission systems, differentials
Compact industrial equipment, pumps
Motor and generator bearing systems

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