Deep Groove Ball Bearings | Customized Products-Luoyang Bearing Research Institute Co., Ltd.

Features

Features of Deep Groove Ball Bearings

High Radial Load Capacity

Deep groove ball bearings are designed with a full-contact raceway, enabling them to support substantial radial loads with excellent stability.

01
Ability to Handle Axial Loads

Although primarily for radial loads, they can also accommodate moderate axial loads in both directions, making them versatile for many applications.

02
Low Friction and Smooth Running

Their optimized raceway geometry and precision ball design ensure very low friction, reduced heat generation, and exceptionally smooth rotation.

03

04

High-Speed Performance

Thanks to their low friction and robust construction, deep groove ball bearings are suitable for high-speed applications and can operate reliably at elevated RPMs.
05

Simple, Robust Structure

The bearing’s compact, single-row design offers high rigidity, easy installation, and long service life with minimal maintenance requirements.
06

Wide Range of Variants

Available with seals, shields, snap rings, stainless steel versions, and special clearances, deep groove ball bearings can be tailored for diverse environments and performance needs.

Product Introduction

What Are Deep Groove Ball Bearings?

An overview of Deep Groove Ball Bearings, their structure, and how they function in mechanical systems.

Deep Groove Ball Bearings Overview

Deep groove ball bearings are one of the most commonly used types of rolling bearings. They feature deep raceway grooves on both inner and outer rings, allowing them to handle radial loads and a certain amount of axial loads in both directions. Their simple design, compact structure, and versatility make them widely applied in motors, automobiles, machinery, and precision instruments.

Structure of Deep Groove Ball Bearings

A deep groove ball bearing consists of: Inner Ring – Mounted on the shaft, supporting rotation. Outer Ring – Fixed to the housing, providing external support. Balls (Rolling Elements) – Roll within the raceways, transmitting load. Cage (Retainer) – Keeps balls evenly spaced, reduces friction and wear. Seals/Shields (optional) – Prevent dust ingress and lubricant leakage, extending service life. The deep groove design allows the bearing to handle radial and axial loads simultaneously while maintaining smooth rotation.

Working Principle

Deep groove ball bearings operate on the principle of rolling friction: Radial Load: Balls roll along the groove, supporting the radial forces between the inner and outer rings. Axial Load: The groove’s geometry allows balls to carry moderate axial forces in both directions. Cage Function: Keeps balls evenly spaced to prevent collision and wear. Seals/Shields: Minimize contamination and maintain lubrication for longer life. These bearings are highly efficient, produce low noise, and are suitable for high-speed applications.

Applications

Deep groove ball bearings are versatile and widely used in: Motors & Generators – Ensuring smooth, high-speed rotor rotation. Automotive Industry – Wheel hubs, transmissions, and electric motors. Household Appliances – Fans, washing machines, air conditioners. Industrial Machinery – Pumps, compressors, machine tools. Precision Instruments – Measuring devices and optical equipment requiring high accuracy and low noise. Food & Pharmaceutical Equipment – Sealed bearings prevent contamination and extend service life.

Key Advantages

Simple and cost-effective design. Smooth operation with low noise, suitable for high-speed rotation. Handles radial and moderate axial loads. Optional seals and shields extend bearing life. Easy installation and maintenance, suitable for various industries.

Product

Our Deep Groove Ball Bearings Products

Browse our wide range of Deep Groove Ball Bearings with detailed models, specifications, and competitive prices.

Choose The Right Product

Material Selection

How To Choose

Deep Groove Ball Bearing Selection Checklist

Step 1

Clearly Define the Operating Conditions

Before selecting a model, the following key factors must be confirmed:

Operating speed (rpm)

Working load size and type (radial/axial/combined load)

Operating temperature range (°C)

Lubrication method (grease/oil lubrication)

Installation space limitations (shaft diameter/outer diameter/width)

Step 2

Confirm Bearing Dimensions

Based on the equipment shaft diameter and space requirements, determine the basic bearing dimensions:

Inner Diameter (d)

Outer Diameter (D)

Width (B)

Refer to ISO 15 series dimensional standards

(Example: 6000, 6200, 6300 series correspond to different cross-sectional dimensions)

Step 3

Special Internal Structure

Deep groove ball bearings can be subdivided by structure as follows:

Open type

Single-sided seal (Z, RS)

Double-sided seal (ZZ, 2RS)

With retaining groove (N, NR)

With cage variations (steel cage, brass cage, nylon cage)

Selection points:

Dustproof environment: Use ZZ/Z

Water and oil resistant: Use 2RS/RS

High speed: ZZ + steel cage

Low noise: 2RS + nylon cage

Step 4

Load Capacity and Life Calculation

Confirm the following parameters match:

Rated dynamic load C

Rated static load Co

Basic rated life L10 / L10h

Is increased clearance (C3, C4) required?

High speed → C3

High temperature → C3 or C4

Step 5

Material Requirements

Common Material Options:

GCR15 (Standard High-Carbon Chromium Bearing Steel)

Stainless Steel 440C (Corrosion Resistant)

Ceramic Hybrid Bearings (Si3N4 Ceramic Balls + Steel Rings)

All-Ceramic Bearings (Si3N4 or ZrO2)

Recommended Application Scenarios:

High Speed/High Temperature: Ceramic Hybrid Bearings

Strong Corrosion Resistance: Stainless Steel or All-Ceramic Bearings

General Equipment: GCR15

Step 6

Limiting Speed

Determine the limiting speed based on the lubrication and sealing methods:

ZZ > Z > Open > RS > 2RS

(Note: Rubber seals will reduce the speed but improve sealing performance)

Step 7

Clearance Selection

Standard clearance (CN): For general equipment

C3/C4 Increased clearance: For high speed, high temperature, and heavy load

CM (Motor-specific clearance): For low-noise motors

Step 8

Tolerance

Bearing inner ring and shaft → Interference fit/Reference shaft tolerance

Bearing outer ring and housing bore → Clearance fit/Reference bore tolerance

Is a retaining groove required: NR

Step 9

Grease selection

Standard grease: General machinery

High-speed grease: Motors, spindles

High-temperature grease: Baking equipment

Food-grade grease: Food processing machinery (NSF H1)

Step 10

Selection Recommendations

6000 Series: Light load, high speed (fans, motors)

6200 Series: Medium load, medium to high speed (machinery)

6300 Series: Heavy load (industrial equipment)

6800/6900 Series: Thin-walled bearings (compact structure equipment)

What Are You Looking For?

Frequently Asked Questions

How do I extend the service life of deep groove ball bearings?: Ensure proper installation and alignment Use the correct lubrication Avoid contamination and excessive loads Monitor operating conditions regularly

Can deep groove ball bearings operate at high speeds?: Yes, they are designed for high-speed applications. Hybrid ceramic versions can reach even higher speeds due to lower friction and reduced heat generation.

How should deep groove ball bearings be lubricated?: Grease lubrication: Common for most industrial applications, easy to maintain. Oil lubrication: Recommended for high-speed or high-temperature operations. Follow manufacturer guidelines for type, amount, and re-lubrication intervals.

What are the typical applications of deep groove ball bearings?: These bearings are used in a wide range of industries: Electric motors and generators; Automotive wheels and transmissions; Pumps and compressors; Machine tools; Household appliances.

What are the main types of deep groove ball bearings?: Single-row deep groove ball bearings: Most common type, suitable for radial and light axial loads. Double-row deep groove ball bearings: Can handle higher radial and axial loads. Sealed or shielded bearings: Protect against dust, moisture, and contamination.

Are deep groove ball bearings maintenance-free?: Some sealed or shielded versions require little to no maintenance, but regular inspection and proper lubrication are recommended for long-term reliability.

What are the common failure causes?: Insufficient lubrication or contamination; Misalignment or improper mounting; Overloading or shock loads; Corrosion or material fatigue.

How do I choose the right deep groove ball bearing?: Consider the following factors: Load type and magnitude (radial, axial, or combined); Operating speed; Temperature and environmental conditions; Required service life and maintenance intervals.

What materials are deep groove ball bearings made from?: Steel: Chrome steel (bearing steel) is standard for most applications. Ceramic: Hybrid ceramic bearings offer higher speed, lower friction, and longer service life. Stainless steel: For corrosion-resistant applications.

What is a deep groove ball bearing?: Deep groove ball bearings are a type of rolling bearing that uses balls to maintain the clearance between the bearing raceways. These bearings are designed to withstand radial loads and moderate bidirectional axial loads.