PDLC Smart Film also called Electric Privacy Film have Self Adhesive Switchable Smart Film and Lamination Intelligent Film (Non Adhesive Switchable Film) Pdlc Smart Film,Switchable Film,Self Adhesive Smart Film,Pdlc Electric Smart Film Shenzhen YuGuang New Material Co.,Ltd , https://www.ygsmartfilm.comComparison Between Rolling Bearings and Plain Bearings
Rolling bearings operate under rolling friction, making them easy to use and maintain. They offer stable performance, good starting characteristics, and higher load capacity at moderate speeds. Compared to sliding bearings, rolling bearings have a larger radial dimension, lower efficiency at high speeds, and greater static and dynamic clearance.
The basic structure of a radial rolling bearing typically consists of four main components: the inner ring, outer ring, rolling elements, and cage. The inner ring rotates with the shaft, while the outer ring is mounted in the housing. Raceways are formed on the inner and outer surfaces, allowing the rolling elements to move smoothly between them. The cage keeps the rolling elements separated to prevent contact and reduce friction.
Thrust bearings, on the other hand, are designed to handle axial loads. They usually consist of two fixed rings and one rotating ring. The materials used for the rings and rolling elements are typically high-strength, heat-treated steel with a surface hardness of HRC 60–65. The cage is often made from stamped soft steel, copper alloys, or plastic.
There are various types of rolling bearings based on their function, shape, and operating conditions. Radial bearings support radial loads, thrust bearings handle axial loads, and radial-thrust bearings can manage both. In terms of rolling elements, they can be ball bearings, roller bearings, or needle bearings. Depending on the application, bearings can also be categorized as high-speed, high-temperature, low-temperature, vacuum, anti-magnetic, corrosion-resistant, miniature, or extra-large.
China has several precision levels for rolling bearings, including B, C, D, E, and G, with B being the highest precision and G the most commonly used.
Rolling bearings are standardized components produced in large quantities by specialized manufacturers. When selecting a bearing, factors such as life, load capacity, precision, clearance, speed, friction torque, alignment, preloading, rigidity, vibration, and noise must be considered.
Compared to sliding bearings, rolling bearings offer several advantages:
1. Under normal conditions, the power loss of rolling bearings is similar to that of fluid dynamic bearings but higher than that of mixed lubrication bearings.
2. Radial clearance is comparable, and the working accuracy is better.
3. For the same shaft diameter, rolling bearings are wider than sliding bearings, which may lead to more noise.
4. Most rolling bearings can handle both radial and axial loads, simplifying the bearing arrangement.
5. Lubricants are cheaper, easier to seal, and easier to protect.
6. No need for non-ferrous metals.
7. High standardization and mass production result in lower costs.
However, rolling bearings also have some disadvantages compared to sliding bearings:
1. Poor resistance to impact loads.
2. Lower service life under high-speed and heavy-load conditions.
3. Higher vibration and noise levels.
4. Larger radial dimensions than sliding bearings.
---
**Related Bearing Knowledge**
- Features of bearing reinforced appearance (2)
- Detailed analysis of "bearing clearance" in spherical roller bearings
- How to correctly remove INA textile sealed bearings
- FAG bearing service life Lna, Lhna, and coefficient a23
This article links to http://
Please indicate the bearing network http://
Previous: Small and medium-sized bearing cylindrical bore equipment skills
Next: Analysis of electroplating process of anti-friction layer of sliding bearing
/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
**Comparison Between Rolling Bearings and Plain Bearings**
Home > Bearing Knowledge > Comparison Between Rolling Bearing and Plain Bearing
*Created on 2018/5/16*
var cpro_id = "u3440131";
Source: China Bearing Network | Time: 2013-02-08