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Bearing Seal

Fpm Bearing Unit Shaft Stainless Metal Seals China Manufacturer
Bearing Seal

Fpm Bearing Unit Shaft Stainless Metal Seals China Manufacturer

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  • Fpm Bearing Unit Shaft Stainless Metal Seals China Manufacturer
  • Fpm Bearing Unit Shaft Stainless Metal Seals China Manufacturer

Description

Product Description

The sealing ring of a bearing is characterized in that: on one end face of a circular ring, two rounded bulges extend upward, and the inner diameter of the smaller bulges is matched with the outer diameter of the inner ring of the ball bearing, and the larger bulges are matched with the outer diameter of the ball bearing;The inner diameter of the sealing ring is not less than that of the inner ring of the ball bearing.

FPM bearing unit shaft stainless metal seals

NUMBER NAME
ABS F 300001 oil seal
ABS F 300005 oil seal
JT-011 seal ring
KRJT-011 seal ring
KRJT-015 seal ring
KRJT-017 seal ring
KRJT-017 seal ring
KRRE-099 oil seal NBR
KRRE-100 oil seal NBR
KRRE-101 oil seal
KRRE-102 oil seal
KRRE-105 oil seal
KRRE-106 oil seal
KRRE-107 oil seal
KRRE-108 oil seal
KRRE-109 oil seal viton
KRRE-110 oil seal
KRRE-114 oil seal
KRRE-115 oil seal
KRRE-117 oil seal
KRRE-152 oil seal
KRRE-156 oil seal
KRRE-157 oil seal viton
KRRE-158 oil seal viton
KRRE-159 oil seal viton
KRRE-160 KRRE-160
KRRE-165 oil seal
KRRE-166 oil seal
KRRE-167 oil seal
KRRE-168 oil seal
KRRE-169 oil seal
KRRE-170 oil seal
KRRE-171 oil seal
ABS F 15298 oil seal
KRJT-030 seal ring
62010186101000/KRRE-174 oil seal
62010187101000/KRRE-175 oil seal
KRRE-179 oil seal
KRRE-180 oil seal

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What factors influence the performance of industry rubber seals

The sealing effect of the sealing ring is related to the material characteristics of the sealing ring. There is also a close influence on other factors. For example, the speed of rotation, working temperature, working pressure, working medium, etc., today I will tell you about the four factors that affect the sealing performance of the sealing ring.

First, the speed of rotation

  When the rotation speed is very low (< 0.03m/s), it is necessary to consider the smoothness of the operation of the equipment and whether the operational appears "crawling" phenomenon. When the movement speed is very high (> 0.8m/s), the lubricating oil film may be destroyed, and the oil seal is not well lubricated and frictions heat, resulting in greatly reduced life. It is recommended that polyurethane or rubber and plastic oil seal work in the speed range of 0.03m/s ~ 0.8m/s. High-speed oil seals need to put forward higher requirements for structure and material, and the speed of household appliances oil seals can reach 20000rpm. Both wear and temperature resistance need to be met, and the concentricity requirements of dynamic sealing on the installation are relatively high.  

Second, the temperature of the working environment

  Low temperature will reduce the elasticity of rubber and plastic oil seals, resulting in leakage, and even the entire oil seal becomes hard and brittle. High temperature will make the oil seal volume expansion, soft, resulting in the oil seal friction resistance increases rapidly and the pressure resistance decreases. It is recommended that the continuous operating temperature range of ordinary polyurethane or rubber and plastic oil seals be -10 ° C to +80 ° C. For the high temperature and high speed requirements of the working environment, we need to choose to use fluorine rubber and PTFE, high temperature resistance and wear resistance is better, the low temperature environment is generally to -40 degrees, and the rubber performance is tested at high and low temperatures to ensure that the product quality meets the requirements.  

Third, the working pressure of machinery

  The oil seal has a minimum service pressure requirement. Oil seals with low friction and low starting resistance should be selected for low pressure work. Below 2.5MPa, polyurethane oil seal is not suitable; High pressure to consider the oil seal pressure deformation, need to use anti-extrusion stop ring, grooving processing also has special requirements.

Fourth, the working medium

  General sealing media are gasoline, oil, diesel, grease, and some static sealing dust. In addition to selecting the working medium strictly according to the manufacturer's recommendations, it is important to keep the working medium clean. Aging or contamination of the oil will not only cause the components in the system to fail, accelerate the aging and friction of the oil seal, but also the dirt in it may scratch or embed the oil seal, making the seal fail. Therefore, it is necessary to regularly check the quality of the oil and its cleanliness, and replace the oil filter or oil according to the maintenance specifications of the equipment. The air remaining in the oil in the cylinder will be compressed by high pressure, which will cause the oil seal to burn out or even carbonize. In order to avoid this situation, exhaust treatment should be carried out at the initial operation of the hydraulic system. The hydraulic cylinder should also run at low pressure and slow speed for a few minutes to confirm that the residual air in the oil has been drained before it can work normally.