Double row deep groove ball bearings

4200 to 4310 series are double row deep groove ball bearings with high load capacity and rigid structure. They can withstand heavy radial loads and bidirectional axial loads simultaneously, featuring high running accuracy, low noise and long service life. Suitable for gearboxes, pumps, fans, electric motors, agricultural machinery, construction equipment and general industrial machinery.

Classification :

Deep Groove Ball Bearings

Keywords :

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🎯 Category Overview

Double row deep groove ball bearings are designed with two parallel rows of balls in a continuous raceway, enabling significantly higher radial and axial load capacity than single-row bearings. They run with high precision, low noise, and good rigidity, suitable for applications with limited space but demanding heavy load performance.

🔍 Our Series Breakdown

Series	Features	Typical Applications
4200 Series	Medium size, balanced load and speed, compact structure, widely used	Electric motors, pumps, fans, reducers, textile machinery
4300 Series	Heavy-duty type, higher load capacity, stronger rigidity, impact resistant	Gearboxes, agricultural machinery, conveyors, power tools
4400 Series	Extra heavy-duty design, maximum load capacity, stable under heavy stress	Lifting equipment, packaging machinery, small industrial gear units

⚙️ Core Advantages

Higher radial and axial load capacity than single-row deep groove ball bearings
Excellent high-speed performance with low friction and low noise
Simple structure, easy installation and high interchangeability
Available in open, ZZ metal shields and 2RS rubber seals
Stable operation and long service life under continuous working conditions
Ideal for applications with combined loads and limited mounting space

🛠️ Typical Applications

Widely used in electric motors, gearboxes, reducers, pumps, fans, conveyors, agricultural machinery, power tools, household appliances, packaging machinery and various general industrial equipment.

Bearing Number	d mm	D mm	B mm
4200	10	30	14
4201	12	32	14
4202	15	35	14
4203	17	40	16
4204	20	47	16
4205	25	52	18
4206	30	62	20
4207	35	72	23
4208	40	80	23
4228	45	85	23
4210	50	90	23
4301	12	37	17
4302	15	42	17
4303	17	47	19
4304	20	52	21
4305	25	62	24
4306	30	72	27
4307	35	80	31
4308	40	90	33
4309	45	100	36
4310	50	110	40

Category Introduction

Deep Groove Ball Bearings are the most versatile and widely used type of rolling element bearings, suitable for a vast range of general industrial applications. Characterized by their simple construction, high speed capability, and low friction, these bearings are designed to handle radial loads as well as bidirectional axial loads.Our deep groove ball bearing product line covers an extensive size range, from ultra-miniature bearings for electronic components to large-sized bearings for heavy machinery and motors. We offer open, ZZ metal-shielded, and 2RS rubber-sealed versions to ensure optimal performance in both clean and harsh environmental conditions.

Our Series Breakdown

We provide a full spectrum of deep groove ball bearing series to meet every precision and load requirement:

Series	Size Range	Key Features	Typical Applications
6000 Series	Miniature & Small	Ultra-compact, high speed, low noise	Small motors, office equipment, power tools
6200 Series	General Purpose	Excellent all-round performance, high rigidity	Electric motors, fans, pumps, conveyors
6300 Series	Medium Duty	Higher radial load capacity, sturdy structure	Gearboxes, agricultural machinery, industrial drives
6400 Series	Heavy Duty	Extra large cross-section, maximum load	Heavy mining equipment, large crushers, high load motors
6700/6800 Series	Ultra-Thin	Space-saving, thin section design	Precision instruments, medical devices, small electronics
Flange Series	Integrated Mount	Built-in flange for easy axial positioning	Robotics, small mechanisms, precision modules

Core Advantages

High Speed & Smoothness: Optimized raceway design ensures quiet and stable operation at high rotational speeds.
Universal Compatibility: Seamlessly fits into most standard machinery due to interchangeable dimensions.
Cost-Effective Reliability: A cost-efficient solution with long service life and low maintenance costs.
Full Sealing Options: Available with ZZ (Metal Shields) and 2RS (Rubber Seals) for maximum protection against dust and moisture.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

Deep Groove Ball Bearings