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1.Dimensions and Basic Information of 6903 Bearing
2.Structure of the 6903 Bearing
3.Features of the 6903 Bearing
4.Application Environments of the 6903 Bearing
▏The 6903 thin section bearings is a common type of deep groove ball bearing, widely used in various mechanical equipment.
This article will delve into the structure, characteristics, application fields, as well as selection and maintenance recommendations of the 6903 bearing, helping you gain a better understanding of this crucial component.
The outer diameter of the 6903 bearing is
30 millimeters.
This refers to the diameter of the bearing's outer ring.
The thickness of the 6903 bearing is
7 millimeters.
This refers to the distance between the inner and outer rings of the bearing.
The 6903 bearing is a common and widely used bearing model.
Understanding its inner diameter, outer diameter, and width dimensions is crucial for selecting the appropriate bearing.
▏Based on your application requirements, load, speed, temperature, and quality needs, choose the 6903 bearing size that suits your application to ensure optimal performance and reliability.
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The 6903 bearing typically consists of an inner ring, outer ring, balls, and a cage. The raceway grooves are slightly larger than the radius of the steel balls.
Since the contact between the balls and the raceways is point contact, it can withstand bidirectional axial loads as well as radial loads.
The sealing covers for the 6903 bearing are mainly divided into three types: OPEN, ZZ, and 2RS.
▏The 6903 OPEN type bearing cover is a design without any cover.
▏This design makes the bearing susceptible to contaminants, dust, and other external particles.
→Therefore, it is more suitable for clean environments or applications where regular cleaning is required.
▏The 6903 ZZ features a metal cover.
▏The metal shield effectively blocks the entry of dust, contaminants, and other external particles while retaining the lubricant inside the bearing.
▏The 6903 2RS refers to a bearing cover with rubber seals.
▏The rubber seals provide enhanced protection, effectively blocking the entry of moisture, dust, and other contaminants.
→This sealing method is typically suitable for harsh environments and applications requiring stricter protection.
When selecting the appropriate bearing cover type for your needs, please consider the following factors:
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1. Application Environment
Identify potential sources of contamination and other external particles in your application environment.
▏Based on the environmental conditions, choose between OPEN type, metal shields, or rubber seals to provide appropriate protection.
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2. Precision and Speed Requirements
Consider the precision and speed requirements of your application for the bearing.
▏Open-type bearings are typically suitable for applications with lower precision and speed requirements.
On the other hand, metal shields and rubber seals provide higher protection and are suitable for applications with medium to high precision requirements.
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3. Maintenance Requirements
Consider the maintenance needs of your bearing.
▏Open-type bearings require regular cleaning and lubrication, while metal shields and rubber seals can reduce maintenance needs.
The 6903 bearing adopts a deep groove ball design, where the contact area between the steel balls and the inner and outer rings is small, resulting in a low friction coefficient.
▏This design not only effectively reduces friction but also minimizes axial displacement, ensuring the stability and precision of equipment operation.
It enhances equipment operating efficiency and reduces energy loss.
It is suitable for applications requiring high-precision positioning.
The structural design of the 6903 bearing enables it to withstand high-speed operation.
Its low-friction characteristics further enhance the stability of high-speed rotation, making it highly suitable for high-speed equipment such as motors and fans.
It is ideal for high-speed applications, including motors, turbines, and more.
It reduces wear during high-speed operation, extending its service life.
The 6903 bearing features a point contact design typical of ball bearings, where the contact area between the steel balls and the inner and outer rings is minimal, resulting in a low friction coefficient.
This design enables the bearing to generate very little noise and vibration during operation.
Low Noise: Ideal for applications requiring quiet operation, such as household appliances, electric motors, and precision instruments.
Low Vibration: Enhances the stability of equipment operation and reduces impact on mechanical structures.
The 6903 bearing is also used in certain automotive components, such as transmissions and generators.
The 6903 bearing can also be used in certain components of household appliances, such as fans, motors, and compressors.
The 6903 bearing is a key bearing model used in most electric bicycle hubs.
Its size and design allow it to maintain low friction and high efficiency during high-speed rotation.
The 6903 bearing is a key component widely used across various industries. From the automotive industry and household appliances to the electric bicycle sector, this bearing plays an essential role in many critical applications.
Proper selection and maintenance not only enhance equipment performance but also extend the bearing’s lifespan.
We hope this article provides valuable information to help you better utilize the 6903 bearing.
This is just the tip of the iceberg!
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