plastic bearing

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    :                                                                                                 

Plastic bearings are an alternative to traditional metal bearings, offering unique advantages in specific applications. Here's a detailed introduction to plastic bearings:

1. Materials:

• Polytetrafluorethylene (PTFE): Known for its outstanding chemical resistance, low leachability, and excellent lubricity. It is also marketed under the brand name Teflon®.

• Nylon: Used for its toughness, resistance, and pressure ratings. It falls under the category of polyamides.

• Semi-crystalline acetal polymers: These offer excellent lubricity, fatigue resistance, and chemical resistance, but can be affected by temperature extremes.

• Polyvinylidene fluoride (PVDF): Performs well in chlorine environments and is resistant to certain chemicals.

• Plastic bearings are made from a variety of plastic materials, often self-lubricating to ensure smooth operation and greater durability. Common materials include:

2. Design:

• Plastic bearings can include rings, balls, and cages, which may not necessarily be made from plastic. The design varies, and parts can be made from different materials to optimize performance.

3. Applications:

• Ideal for wet and corrosive environments, clean environments, areas that are difficult to lubricate, and applications that require non-magnetic bearings.

• They are also used where corrosion resistance, non-magnetic or non-conductive properties are needed.

4. Advantages:

• Plastic bearings are five times lighter than steel, can reduce costs by up to 25%, and perform well in harsh environments.

• They can endure extreme temperatures, heavy loads, and high speeds.

• Self-lubricating polymer bearings contain solid lubricants embedded in the material, which reduce friction and cannot be washed off like grease or oil.

5. Manufacturing Process:

• The manufacturing process for plastic bearing components can involve techniques such as injection molding for cages, where melted plastic is squirted into a hollow metal mold and hardened.

• igus® focuses on high-performance plastics and uses injection molding to economically produce plain bearings.

6. Performance:

• igus® conducts over 10,000 tests annually to develop new polymer blends for various application scenarios. They have a unique lifetime calculation program that allows users to input application-specific data to calculate the best plastic bearing and its expected lifetime.

7. Types of Plastic Bearings:

• Angular contact bearings: Have one or two rows of balls forming a contact angle between the races and balls.

• Radial ball bearings: Feature one or two rows of balls rotating in a deep, machined groove.

• Linear bearings: Designed for components needing linear movement with high accuracy.

• Pillow block bearings: Provide strong load support for rotating shafts.

8. Specifications and Standards:

• Specifications include bore size, outside diameter or length, and overall width or height.

• The bearing industry uses a standard, numbered system to identify plastic bearings with metric diameter bores.

Plastic bearings offer a versatile and often more cost-effective solution compared to traditional metal bearings, especially in environments where their unique properties can be leveraged for improved performance and longevity.

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

 Our products                                                                                                                                                                 

Ball Bearings

SKF

NSK

FAG

TIMKEN

          IKO

NTN

GMN