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Advantages and types of insulated bearings

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Release time:2020-04-18
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Advantages and types of insulated bearings

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Advantages and types of insulated bearings

[Summary]Good insulation performance, using a special sealing method, J20AA coating can effectively insulate even in a humid environment, insulated bearings can be interchanged with standard bearings. For special occasions, such as outer ring rotation, bearings with J20C coating on the inner ring are recommended.

Classification:Company news
Author:
Source:
Release time:2020-04-18
Visits:7

Information

Advantages of insulated bearing coating:

Good insulation performance, using a special sealing method, J20AA coating can effectively insulate even in a humid environment, insulated bearings can be interchanged with standard bearings. For special occasions, such as outer ring rotation, bearings with J20C coating on the inner ring are recommended.

The drive end adopts cylindrical roller bearing NU215-E-TVP2-F1-J20AA-C4 as a non-locating bearing;

The non-driving end adopts deep groove ball bearing 6215-M-J20AA-C3 as the positioning bearing.

Types and Designs of Insulated Bearings for Traction Motors

Deep groove ball bearing

60, 62, 63 40 – 240mm<

Cylindrical Roller Bearings

NU 10 130 – 240mm

NU, NJ, NUP 2.-E, 22, -E 60 – 200mm

NU, NJ, NUP 3.-E 40 – 190mm

FAG Traction Motor Bearing Suffix Description

C3, C4, C5 radial internal clearance is larger than normal group

M brass solid cage, rolling element guide

J20AA insulated bearing, the outer ring is covered with an oxide ceramic coating (coating thickness ≈200 μm)

J20B insulated bearing, the outer ring is covered with an oxide ceramic coating (coating thickness <100 μm)

J20C insulated bearing, the inner ring is covered with an oxide ceramic coating (coating thickness ≈200 μm)

F1 Traction motor cylindrical roller bearing in accordance with DIN43283

M1 solid brass riveted cage, rolling element guide

TVP, TVP2 window-type nylon cages can provide other designs if required

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News

Roller bearing

Roller bearing is a kind of rolling bearing, and it is one of the parts widely used in modern machinery. It relies on the rolling contact between the main components to support the rotating parts. Roller bearings are now mostly standardized. Roller bearings have the advantages of small starting torque, high rotation accuracy, and convenient selection.

2021-06-23

Advantages and types of insulated bearings

2020-04-18

Analyze the different types of bearings and their uses

Rolling bearings are classified into radial bearings and thrust bearings according to the load direction they bear or the nominal contact angle. Radial contact bearings are radial bearings with a nominal contact angle of 0, and radial contact bearings are radial bearings with a nominal contact angle greater than 0 to 45. Bearings are an important part of modern machinery and equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Bearing models generally consist of pre-code, basic code and post-code.

2020-01-08

Bearing Knowledge" What is an axle box device? How to maintain it?

The axle box temperature is related to many factors, such as the load on the FAG bearing, operating speed, line status, air temperature, wind speed, continuous running time, quantity and status of lubricating grease, etc., all have a significant impact on the axle temperature. Two to three hours after the start of the vehicle, the bearing temperature tends to stabilize, and the heat generated by the friction of the bearing and the heat radiated from the outer surface of the axle box are close to balance. In the cold northern areas, the surface of the axle box dissipates heat quickly. The temperature difference between the top of the axle box and the inside of the bearing is as much as 30 to 40 degrees, while in the southern hot season, the temperature difference between the top of the axle box and the inside of the bearing is only about 100 degrees. Usually in summer, the temperature of the axle box on the side of the sun is much higher than the side of the back sun.

2019-11-21