second hand ball bearings

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

Second-hand ball bearings are pre-owned ball bearings that are often reconditioned, inspected, and certified for reuse in various applications. They are a cost-effective alternative to new bearings and can be used in many of the same applications where new ball bearings are required. Here's a detailed introduction to second-hand ball bearings:

Main Components in Ball Bearings

Ball bearings consist of several key components:

• Outer Ring (Outer Race): The outer ring is the outermost component of the ball bearing.

• Inner Ring (Inner Race): Positioned inside the outer ring, it fits onto the shaft or axle.

• Balls: These are the small, precisely manufactured spherical rolling elements that give ball bearings their name.

• Cage (Retainer): This component prevents the balls from coming into contact with one another and maintains their even distribution around the raceway.

• Seals and Shields: Some ball bearings incorporate seals or shields to protect the internal components from contamination, such as dust, dirt, or moisture.

Types of Ball Bearings

Second-hand ball bearings come in various types, each designed to meet specific application requirements:

• Deep Groove Ball Bearings: Often used in electric motors, household appliances, and automotive components.

• Angular Contact Ball Bearings: Designed with angular contact points between the balls and the raceways, they come in various configurations, including single-row, double-row, and four-point contact.

• Thrust Ball Bearings: Consist of two grooved washers with balls between them, commonly used in applications where axial load capacity is essential.

• Self-Aligning Ball Bearings: Made with two rows of balls, making them suitable for reducing misalignment and shaft deflection.

• Insert Ball Bearings: Designed to be easily inserted into housings and are commonly used in applications like agricultural equipment, conveyor systems, and mounted units.

Applications

Second-hand ball bearings find use in a wide range of applications, including:

• Automotive: In wheel hubs, transmissions, and engine components.

• Agriculture: In farming machinery and equipment.

• Electrical: In electric motors and generators.

• Mining & Construction: In heavy machinery used in these industries.

• Railway & Aerospace: In various components of rolling stock and aircraft.

Market and Price

The market for second-hand ball bearings is driven by the need for cost savings while maintaining performance. Prices for these bearings can vary widely based on factors such as condition, brand, and the specific type of bearing.

Quality and Inspection

When purchasing second-hand ball bearings, it's crucial to ensure that they have been thoroughly inspected and meet quality standards. Reputable suppliers will provide certification that the bearings have been tested for performance and are safe for reuse.

Buying Guide

When considering second-hand ball bearings, buyers should look for:

• Certification: Ensure the bearings have been tested and meet quality standards.

• Condition: Check the physical condition of the bearings, looking for signs of excessive wear or damage.

• Compatibility: Make sure the bearings are compatible with the application requirements.

• Supplier Reputation: Choose a supplier with a good reputation for quality and service.

In summary, second-hand ball bearings offer a cost-effective solution for many applications, provided they are sourced from a reputable supplier and have been properly inspected and certified for reuse.

For further details on this product please directly contact our sales department under shh@dmsw.com 

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