Nitrile rubber has good oil resistance and is suitable for general lubricating oil sealing;
Fluororubber has excellent acid and alkali resistance and oil resistance, and is often used in chemically corrosive environments;
Silicone rubber has good heat and cold resistance, but low mechanical strength, and is suitable for occasions with high temperature requirements. Ensure that the selected oil seal material is compatible with the lubricant, chemical and other media in contact.

2. Determine the oil seal type

Single lip oil seal: usually used in low pressure environment, can effectively prevent oil leakage.
Double lip seal: There is an extra dust-proof lip, suitable for dust and dirt heavy environment, can provide additional protection against pollution.
Spring-loaded oil seal: Equipped with a spring to maintain constant pressure on the seal lip, suitable for high-speed applications.

3.Pay attention to installation conditions

Dimensions: Accurately measure dimensions such as shaft diameter, aperture and the width of the sealing housing to ensure the exact match of the oil seal to the installation site.
Installation space: If space is limited, you can choose a compact internal skeleton oil seal; For better thermal performance and higher load capacity, consider the exposed skeleton oil seal.
Installation method: Some oil seals have specific installation directions. Ensure that the directions are correct and that the oil seals are not damaged during installation.

Features of Oil Seal Materials

MATERIAL	FEATURES	Temperature
Nitrile Rubbr (NBR)	Excellent wear resistance Excellent aging resistance Excellent Oil resistance Good water resistance Fair ozone resistance Fair acid resistance	-40~120°C
Fluorinated Rubber (FKM)	Excellent wear resistance Excellent aging resistance Excellent Oil resistance Good water resistance Excellent ozone resistance Excellent acid resistance	-26~250°C
Silicone Rubber	Poor wear resistance Excellent aging resistance Poor Oil resistance Good water resistance Excellent ozone resistance Fair acid resistance	-60~225°C

Types

Type	Features
TC	The outer part is rubberized design, double lip with spring
SC	The outer part is rubberized design, double lip with spring
TB	The outer layer is an iron shell, double lip with spring
SB	The outer layer is an iron shell, double lip with spring
TA	The design of the inner shell combination is used to strengthen the steel of the oil seal,double lip with spring
EC	It is mainly used for the orifice core of the oil seal and the bearing, mainly for the gear box and other parts
SA	The design of the inner shell combination is used to strengthen the steel of the oil seal,double lip with spring
DKB	The outer iron shell is fluted and has a dual lip dust seal.
TCN	The exterior is iron on one side and rubber on the other, with springs on both lips
TCV	Outer layer is rubber, inner skeleton, double lip with spring
VG	Surface threaded, single lip without spring
VB	Outside is iron shell, inside is rubber, single lip without spring
VC	The outer part is rubberized, single lip without spring
RB	It is a seal for rotating shafts of elastomers protected by a metal bracket, mainly acting as a barrier to the intrusion of external contaminants.
9RB	It is a seal for rotating shafts of elastomers protected by a metal bracket, mainly acting as a barrier to the intrusion of external contaminants.
DC	Outer rubber inner skeleton with springs on both sides.
DB	The lip of the outer skeleton is rubber, with springs on both side.
TC4	Outer rubber, inner skeleton, spring in both lips
TG4	Outer rubber, inner skeleton, spring in both lips, threaded surface.
TB4	Outer shell iron, inner rubber, spring in both lips.

Product Images

About Our Company

Hebei Xiangte Seal Technology Co., Ltd. is located in Hebei Province, China, with rich experience in the research and development, production and sales of seals.

The company is committed to research and development and solve the problem of sealing and shock absorption of high-end products. Focusing on FKM, NBR special rubber seals and high-performance polyurethane products production and research and development, our company has developed special NBR gray rubber, FKM rubber after many years of experimentation and research , and its resistance to high and low temperatures and a variety of physical properties of the index is far more than the ordinary NBR rubber, the performance is stable and reliable.

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