Bearing Rear Code Explanation (4)
This article provides a detailed explanation of the rear code system used in bearings, focusing on the types of cages and their materials based on bearing dimensions and application requirements. Understanding these codes is essential for selecting the right bearing for specific mechanical systems. Below is a comprehensive table that outlines the cage types used in various bearing categories:
| Bearing Type | Cage Design and Information |
|---|---|
| Deep Groove Ball Bearings | 1. For bearings with outer diameter D ≤ 400mm, stamped steel or brass cages are used. 2. For bearings with outer diameter D > 400mm, solid brass cages are preferred. |
| Self-Aligning Ball Bearings | 1. For bearings with outer diameter D ≤ 200mm, stamped steel cages are used. 2. For bearings with outer diameter D > 200mm, solid brass cages are recommended. |
| Cylindrical Roller Bearings | 1. For single-row cylindrical roller bearings with D ≤ 400mm, stamped steel cages are used. For D > 400mm, solid steel cages are applied. 2. Double-row cylindrical roller bearings typically use solid brass cages. |
| Spherical Roller Bearings | 1. Symmetric spherical roller bearings (with an active retaining ring) usually use stamped steel cages. 2. Other spherical roller bearings require solid brass cages. |
| Needle Roller Bearings / Long Cylindrical Roller Bearings | Stamped steel or hard aluminum cages are commonly used for these types of bearings. |
| Angular Contact Bearings | 1. Standard angular contact ball bearings without special features use phenolic laminated tube solid cages. 2. Bearings with double inner or outer rings (three-point, four-point contact) use aluminum solid cages. 3. For angular contact ball bearings with a contact angle of 15° or 25°, phenolic laminated tube solid cages are suitable when D < 250mm. When D > 250mm, steel plate pressed cages are used for a = 40°, and brass or hard aluminum solid cages are preferred. 4. P5/P4/P2 grade angular contact bearings use phenolic laminated tube solid cages. |
| Tapered Roller Bearings | 1. For bearings with D ≤ 650mm, stamped steel cages are used. 2. For bearings with D > 650mm, solid steel cages are recommended. |
| Thrust Ball Bearings | 1. For bearings with D ≤ 250mm, stamped steel or brass cages are used. 2. For bearings with D > 250mm, solid cages are preferred. |
| Thrust Roller Bearings | 1. Thrust cylindrical roller bearings use solid cages. 2. Thrust spherical roller bearings also use solid cages. 3. Thrust tapered roller bearings are equipped with solid cages. 4. Thrust needle roller bearings use stamped cages. |
**Recommended for Friends:** If you found this information helpful, feel free to share it with your colleagues or friends who work with bearings. Your feedback is always welcome!
| Bearing Related Knowledge |
| SKF bearing techniques for machine tool spindles, bimetallic bearing housing characteristics, identification of electric fan bearings, sliding bearing scraping needs analysis, how to improve INA bearing accuracy, and more. |
This article is sourced from China Bearing Network. Please visit: http://www.chinabearing.net
Previous: Installation methods for deep groove ball bearings with ball gaps. Next: "Difficulties and Handling Tips" in Bearing Operation.
Guide Ring is a mechanical seal, also known as a guide ring. It is usually made of metal or plastic and used to support and position pistons or rods. Guide Ring has excellent wear resistance and corrosion resistance, which can effectively reduce leakage and friction, thereby extending equipment life. Guide Ring is widely used in the hydraulic, pneumatic, mechanical, and automotive industries as an important mechanical seal.
The classification of Guide Ring can be divided by material, structure, and purpose. According to material classification, Guide Rings are mainly divided into metal Guide Rings and plastic Guide Rings. Metal Guide Rings are usually made of metals such as copper, iron, and stainless steel, which have high strength, wear resistance, and high-temperature resistance; The plastic Guide Ring is usually made of polytetrafluoroethylene (PTFE), nylon, polyimide and other materials, with good corrosion resistance and low friction coefficient.
According to structural classification, Guide Rings are mainly divided into unidirectional Guide Rings and bidirectional Guide Rings. A unidirectional guide ring can only withstand pressure in one direction and is typically used in hydraulic and pneumatic systems; The bidirectional guide ring can withstand bidirectional pressure and is typically used in the mechanical and automotive industries.
According to usage classification, Guide Rings are mainly divided into piston Guide Rings and rod Guide Rings. The piston guide ring is usually used to support and position the piston, preventing friction and leakage between the piston and the cylinder liner; The rod guide ring is used to support and position the rod, preventing friction and leakage between the rod and the seal.
Wearing,Guide Ring,Guide Strip
DG Zhongxingshun Sealing Products Factory , https://www.zxs-seal.com